April/May 2017 Issue
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SKF Rocker Arm Bearing.
e fully portable PAS open-frame wet-prime pump_coste ective solution for applications where there is a consistent ow
Chicago Pneumatic introduces new series of electrically powered LED light towers _CPLB 2
Atlas Copco mVAC systems provide highly reliable medical vacuum
Publisher: E.S.C Magazine T/A Mining Developments Magazine Tel: +27 11 040 3910 Fax: +27 86 601 9195 Email: info@miningdevelopmentsmagazine.com Website: www.miningdevelopmentsmagazine.com 62, 2nd Avenue, Houghton, P.O. Box 92744, Norwood, 2117, South Africa Contributions The editors welcome news items, press releases, articles and photographs relating to the Mining Industry. These will be considered and, if accepted, published. No responsibility will be accepted should contributions be lost, damaged or incorrectly printed. Š All rights reserved 3
Demand soars for Brakpan company a er replacing sand screw classifier with CDE EvoWash As a bonus, we have been able to commit to safer operations as CDE equipment is both high tech systems and simple to use, with well-conceived safety details that guarantee a comfortable working environment
Following the installation of a CDE EvoWash 72 on their sister company's site Analiza, South African brick and block manufacturer Multi Crete Bricks “just can't keep up with orders”, according to its CEO Christo Niemand. Multi Crete has been supplying the South African construction industry for 16 years, delivering premier quality brick and block products nationwide as well as supplying customers directly at their Brakpan factory. e company not only ensures that the best raw materials are selected but also guarantees the best end product by overseeing production from start to finish. In 2016, Multi Crete saw an opportunity to take the lead in the local materials washing market. To achieve this, an upgrade of its sand screw washing plant was necessary in order to remedy the substantial loss of valuable fines that ended up in its quarry's dam. By installing a new CDE EvoWash sand washing plant on its Analiza quarry, Multi Crete can now continue to produce its own bricks, blocks, and manufactured washed sands with an additional plaster sand.
A direct approach for a better solution Christo Niemand is a savvy and practical businessman who relies on a combination of word of mouth and direct communications with experts who can demonstrate the value of their equipment in a 'seeing is believing' manner. In this spirit, the Multi Crete CEO, who manages 16 employees, as well as quarry sta , visited a close-by quarry with a CDE representative to witness the e ciency of the CDE materials washing equipment in action. Convinced by the high tech but userfriendly aspect of CDE installations, Mr Niemand took the next step and challenged Nicolan Govender, CDE Regional Manager for Africa, to find the best-value-for-money washing solution that would significantly reduce the amount of lost fines, increase production levels and sand quality, and crucially allow for multiple sands to be manufactured. e objective was to boost Multi Crete's o er and subsequently demand. e CDE EvoWash 72 dual sand washing plant ticked all of these boxes and Niemand says that he is now ready to further upgrade his equipment to meet the newly created and ever increasing demand for Multi Crete's products. Niemand explains: “ e combination of a solid relationship with our local CDE experts and the commissioning of an ultraperformant EvoWash has given Multi Crete's activities a positive boost. Our plaster sand is hands-down the best in the region and being able to produce two products at the same time, including plaster sand, is truly remarkable.”
Multi Crete Analiza - dual sand discharge - portrait 4
e Analiza quarry treats raw materials including crushed rocks, a mixture of granite and silica, some being heavily claybound. It now produces 23 tonnes per hour of plaster sand and 19 tonnes per hour of river sand. e EvoWash allows for two products to be produced at the same time and can also be set to alter the amount of finer sand in the end product, allowing the
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e CDE Global Design Headquarters are located in Northern Ireland and the company also has bases in Kolkata, India to serve the Asian market, São Paulo, Brazil to serve the Latin American market and North Carolina, USA, to serve the North American market. CDE also has representatives based in North Africa, SubSaharan Africa and the Middle East.
client to produce two o plus zero products in South Africa due to the upgrading of their installation to the CDE cyclone (- 2mm + 0 and - 6 mm + 0). technology. Niemand adds: “Our return on investment is good and we are already looking towards “It makes good business sense to improve plants that waste fines and water which then the future and to expand our range of has a knock-on and positive e ect on the products. We are considering adding company's performance and ability to complementary CDE equipment to our compete in a growing market. Multi Crete installation when we have addressed the is proof that adopting our cyclone waterissue of limited power and water supply.” saving technology really works.” Wayne Warren Business Development Manager for Sub-Saharan Africa at CDE, is Niemand concludes: “Swapping the Analiza proud of the successful relationship that has sand screw classifier for a CDE EvoWash dual sand plant has turned out to be an been developed with Multi Crete: “Being based in South Africa means that I am only excellent investment. We are saving water just a phone call or a short trip away from and time whilst increasing and diversifying materials production. We are now able to Multi Crete and my other customers. position ourselves on the local market as the leading supplier of construction “I have the opportunity to visit Mr materials. Niemand and check on the EvoWash at Analiza regularly. It allows me to iron out any arising issues and keep the conversation going on how CDE can help the company meet new performance requirements quickly and e ciently. “It is gratifying to witness the steady performance of a piece of equipment year a er year. Multi Crete has become one of the best-performing sand washing operators
Multi Crete Analiza - overview 6
MINE WATER TREATMENT Water is carefully managed to prevent the release of contaminated water into the environment. Various control techniques can be used to reduce the potential for water contamination and minimize the volume of water requiring treatment. ese techniques include: Ÿ Intercepting and diverting surface water
(rain and snowmelt runo , streams, and creeks) from entering the mine site by building upstream dams to reduce the potential for water contamination from exposed ore and waste rock Ÿ Recycling water used for processing ore
in order to reduce the volume of water requiring treatment Ÿ Capturing drainage water from
precipitation at the mine site through the use of liners and pipes and directing the water to tailings dams in order to prevent potentially contaminated water from entering groundwater or flowing o site Ÿ Allowing the water to evaporate in
ponds to reduce the volume of contaminated water; in dry regions, enough water may be evaporated that no water needs to be discharged, resulting in the containment of contaminates at the mine site Ÿ Installing liners and covers on waste
rock and ore piles to reduce the potential for contact with precipitation and contamination of groundwater Di erent combinations of strategies can be applied, and the selection of strategies is sitespecific. For instance, the interception and diversion of surface water is a more prominent concern in environments with high rates of precipitation, whereas more emphasis is placed on water recycling in arid regions with little water availability. ere are a number of di erent treatment technologies available to clean contaminated water; these technologies can be described as either active or passive. Active treatment technologies require the input of energy and chemicals, and passive treatment uses only natural processes such as gravity, microorganisms, and/or plants in a system,
any one of which requires infrequent but regular maintenance. e treatment technology used at a mine depends on how polluted the water is, what chemicals need to Active water treatment is the most common form of water treatment at working mines. Sophisticated so ware is used to predict the chemistry of the e uent prior to mine construction, and appropriate water treatment technologies are chosen accordingly. Mine waters are o en acidic, and require the addition of lime, limestone, or caustic soda to raise the pH. Once the pH has been elevated, dissolved metals precipitate out of solution and sink to the bottom of settling or sedimentation ponds, where they can be removed. Chemicals known as coagulants or flocculants may be added in order to combine smaller particles into larger clumps which settle out of the water more quickly. Depending on the desired final water quality, a mine may also use other technologies including ion exchangers, membrane filters, and reverse osmosis. e semi-solid portion or sludge removed from the water is dried and disposed of either underground in the mine, or in a waste disposal facility. Because of the high maintenance and disposal costs of active treatment, ways to recycle the sludge are being explored, such as the production of marketable iron concentrate from acid rock drainage from coal mines. However, the majority of sludge has little economic value and is handled as waste. In extreme cases where the sludge is rich in cadmium or arsenic, it may be classified as hazardous waste and require special handling and disposal.
Passive water treatment is usually combined with water monitoring programs, and takes advantage of natural physical, chemical, and biological processes that remove water contaminates without additional physical or chemical inputs. Examples of these processes include bacteria-controlled metal precipitation, contaminate uptake by plants, and filtration through soil and sediments. Although passive water treatment has been used successfully to treat municipal wastewater and urban runo , its use in the mining industry is still under development, largely because of the challenge of treating highly acidic waters. [Despite these challenges, low operation and maintenance costs continue to generate interest in passive water treatment, especially for use a er mine closure.
Be removed, how much water requires treatment, and the required discharge water quality standards. Constructed wetlands are the most common form of passive water technology. Constructed wetlands act as natural purification systems which are capable of filtering and removing many contaminates before they are transported into marine or freshwater environments. However, it is di cult to achieve ideal contaminate removal conditions, and passive water treatment currently requires ongoing maintenance and treatment.
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SKF quality, value & service secures tender for German-owned OEM SKF is a leading global supplier of bearings, seals, mechatronics, lubrication systems, and services which include technical support, maintenance and reliability services, engineering consulting and training. SKF is represented in more than 130 countries and has around 17,000 distributor locations worldwide. Annual sales in 2015 were SEK 75 997 million and the number of employees was 46 635. www.skf.com
e value and quality of SKF bearings assisted a long-standing OEM customer in securing a tender for a refurbishing project at one of South Africa's a power utility plant. e project comprised the refurbishment of 20 rocker arms. e German-owned engineering company would normally source their products either from overseas. Having been dealing with SKF, the engineering specialist decided to approach SKF for a bearing solution in August 2016. SKF recommended the deep groove ball bearings as the ideal bearing type for this type of refurbishment. e excellent value and quality of these bearings as well as good service from SKF assisted the OEM in successfully securing the tender to refurbish the rocker arms.
SKF Rocker Arm Bearing.
e OEM has now earned the reputation with South Africa's power utility as a quality refurbisher that supplies product and service excellence. As a result, SKF, having gained the customer's trust, is now considered a preferred supplier.
SKF Rocker Arm Bearing Unit 10
New Gas Transmitter : OLDHAM launches the 700/710 Series e OLCT 700 can be used in combination with an increased safety approved junction box from your furniture. e OLCT 710 is ready to use and is made of an OLCT 700 attached to a junction box that contains the terminals and an optional surge protection module. e OLCT 700/710 Series is specifically designed for harsh and extreme locations. It provides reliable operation in any circumstances between -40°C and +75°C. is new and superior level of environmental durability in sensor design includes an electropolished 316 stainless steel housing and 100% encapsulated electronics for complete protection and immunity to water ingress and corrosion. e plug-in, field replaceable sensors can be easily replaced in the field. Operator interface is non-intrusive via a small handheld magnet and the embedded so ware is very intuitive.
e MX 40 has a 2Gb SD memory card and records all data (measurements, alarms, faults) in CSV format. e data can be read directly on the unit or digitally on our File Log Viewer so ware which can be downloaded free of charge from our website. e MX 40 can be accessed remotely via Ethernet or GSM. A web page displays measurements and channel statuses in real time, and is accessible from any computer or wireless phone connected to the internet. is option also allows you to have SMS or email messages sent in the case of an alarm.
Oldham is very pleased to announce the launch of the OLCT 700 and OLCT 710 gas transmitters. e 700/710 Series comprises 3 di erent models -FP, TP or IR- for the detection of flammable, H2S or CO2 gases.
SIL 2 certified according to IEC 61508:2010 functional safety standard, OLCT 700/710 instruments are also ATEX 2G certified for use in ATEX zones 1 and 2. While the Model TP is using a poisonresistant catalytic bead sensor to detect combustible gases, the Model IR includes an infrared sensor to monitor combustible or CO2 gases. Re the Model TP, it is equipped with a proprietary solid state metal oxide semiconductor sensor (MOS) and is very well suited to H2S detection in severe applications where the detector can be exposed to very high concentration/temperature and very low/high humidity. It is commonly used: - in Wastewater Treatment Plants (primary treatment, biological treatment, etc. ), - in Oil and Gas Industry (production platforms, drilling rigs, refineries, etc.), - when temperature exceeds the upper operating temperature of 40-50°C. e 700/710 Series is compatible with all Oldham MX controllers and is ModBus compatible with the MX 40 which can connect to up to 32 detectors.
OLCT 700
e MX 40
OLCT 710
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Chicago Pneumatic's widens its LED light tower o ering Since 1901, the Chicago Pneumatic name has represented highperformance tools and equipment designed for an extensive range of applications. Chicago Pneumatic o ers a wide range of pneumatic, hydraulic and petrol-driven equipment, portable compressors and generators, light towers, rig-mounted attachments, and compaction equipment for the construction and demolition industry. With a global network of distributors, Chicago Pneumatic provides customers with worldwide sales and service support. To learn more about the extensive range of Chicago Pneumatic equipment, please visit www.cp.com.
Chicago Pneumatic has introduced its new series of electrically-powered light towers. Available in both metal and LED versions, CPLB2 light towers are designed with a choice of high-quality bulbs to enhance visibility, wheels for optimal ease of movement and a robust canopy. ey simply plug into a power source, such as an outlet or generator, for instant, reliable site lighting.
average coverage of 3,000 m2 with a diameter of 61m - allowing 10luxes. e 7 metre long mast requires height to achieve maximum light coverage, the light tower's manual li ing system is ideal for this.
“ e newest addition to Chicago Pneumatic's portfolio of light towers o ers a still improved luminosity and transportability, both essential for operators working in the dark hours. We have a firm commitment to o er our customers' choice e CPLB2 LED is the fourth LED light tower in the Chicago Pneumatic portfolio. when it comes to light towers, ensuring Together with three other models: the CPLT e ciency for multiple applications; they are V15 LED, CPLB6 LED and CPLT H6, LED robust, e cient and powerful enough for it provides users the widest choice when it even the most demanding jobs,” comments Ignacio Picatoste, spokesperson for light comes to sourcing the safest and most towers at Chicago Pneumatic. e cient light tower for multiple applications and industries. Easy service and transportability have also been factored into the design of the new e CPLB2 LED light tower is ideal for light tower. Its compact frame allows up to construction, mining and events, to name just a few industries. Featuring heavy duty 32 units to be transported on a single truck build up and high protection index (IP 67), and o ers simple access points for its four high-e ciency LED lamps give an maintenance work.
Chicago Pneumatic introduces new series of electrically powered LED light towers _CPLB 2
Chicago Pneumatic CPLB 2 LED light tower ideal for construction, mining and events. 12
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Moving materials with a sustainable focus SKF is a leading global supplier of bearings, seals, mechatronics, lubrication systems, and services which include technical support, maintenance and reliability services, engineering consulting and training. SKF is represented in more than 130 countries and has around 17,000 distributor locations worldwide. Annual sales in 2015 were SEK 75 997 million and the number of employees was 46 635. www.skf.com
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consists of: a housing with a seal, a sealed bearing, and grease filled in the space between the bearing and the housing seal. e solution has environmental benefits, since the use of grease is significantly lower, because you no longer need to purge the bearing clean with grease. e bearing itself e climate meeting in Paris in 2016 (COP21) proved that politicians are capable needs small quantities of grease to function. Furthermore, the bearing life is significantly of coming to agreement on important improved because it is working in a issues. While they can be commended for protected and clean environment. In a their diplomatic skills, the hard work of conveyor pulley this means that the life of implementing environmental targets will the bearing system is longer or equal to the largely be down to industry. lagging on the pulley thus no longer a bottle SKF's Director of Corporate Sustainability, neck. Rob Jenkinson, said that industry will need Addede ciency to “roll up its sleeves and plot a way forward” in putting these commitments into A far more pressing concern is energy practice. is needs to begin straight away, e ciency – as it is for many sectors. Elevator manufacturer KONE estimates that by investing in lower-carbon technologies and addressing specific sustainability needs. up to 10% of a building's energy consumption comes from the elevators, e materials handling sector encompasses which makes it a key target for e ciency gains. ere are already ways of clawing everything from elevators in skyscrapers, back some of this energy, through cranes, light conveyors (like baggage regenerative drives for example, or through handling lines) and conveyors in mines. tra c analysis optimising the flow of people Each part of the industry is very di erent, and number of elevators. but has similar underlying sustainability concerns – such as boosting energy e move towards more sustainable and e ciency, extending service life and energy e cient products in li s and lubricant disposal. elevators is partly accounted for by the strict LEED certification required for new Grease disposal At one time, lubrication grease was simply building. is informs everything from building materials to construction methods. disposed of but now it must be recycled. is, however, is not so easy at achieve. For Regarding li s, customers can specify the this reason, there is a concerted e ort to cut type of system they want and there is a definite trend in that they are increasingly the use of grease in applications such as demanding ones with higher standards of li s, conveyor pulleys and cranes. Less grease means less disposal, which ultimately e ciency. means less pollution. A third – and crucial – element of One solution is to use bearings that do not sustainability is to extend the working life need re-lubrication. In bearings with solid of a product and its components. Every oil the lubricating oil leaves the oil saturated time you scrap a component, you are not just throwing away the material it is made polymer material onto the bearing raceways. e part is then lubricated for life from – but all its embedded energy and – which has the added advantage of cutting carbon all the way back up the value chain. For this reason, lengthening lifecycle is of the need for maintenance operations. huge benefit. In the heavy conveyors application, another popular way to solve the problem is to use a 'three barriers' solution. e solution Products like low-friction bearings can extend the life of conveyors and li s and help to boost sustainability in the material handling sector, says Jerome Pommereul, Global Business Engineer at SKF.
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Similarly, a European elevator manufacturer used them with adapter sleeves when it needed a quickly mountable bearing on its first high-rise gearless traction machine. Handling baggage ere is no particular sector within material handling that leads the way on embracing SKF recently introduced a new range of small, sealed SKF Explorer spherical roller sustainability. Rather, there are individual companies that are taking the lead. A good bearings that can prolong – or even example of this is Vanderlande, which has eliminate – service intervals. Fitted in a designed a baggage handling system using a gearless traction motor in a heavy-duty 'Cradle to Cradle' (C2C) approach. It is an elevator, it lowers energy consumption by excellent illustration of a company around 145kWh per year – equating to a CO2 emission saving of two tonnes over the developing a product with sustainability in mind. motor's lifecycle. ese cut friction by as much as 20%, with a subsequent up to 20 Its 'Blueveyor' system – which has been degrees Celsius reduction in working running at Amsterdam's Schiphol Airport temperature, extending bearing life to since June 2014, consumes around half the match that of the li system itself. is helps deliver the 'maintenance-free' regime energy of a conventional baggage system. that is important to li manufacturers. e C2C principles require the product to be fully recyclable at the end of its life, sealed SKF Explorer spherical roller meaning that SKF had to adapt its Ybearings form part of SKF's Beyond Zero portfolio of products, which are designed to bearing unit slightly to accommodate this. It meant removing all polymer from inside impart real sustainable benefits in their the seal, and lubricating the bearing with applications. biodegradable grease. ere are many examples of how sealed e bearings are used in belt conveyors on bearings extend the service life of elevators: one Asian elevator manufacturer switched the handling line, with four used on each its entire production to sealed SKF Explorer conveyor. Vanderlande specified the C2C guidelines to SKF, which was then spherical roller bearings, as a lowmaintenance solution that would last for at responsible for developing the bearing solution based on this approach. e two least 20 years. companies have worked together extensively in the past, and SKF has a similarly progressive attitude to sustainability as Vanderlande. Within material handling, many li manufacturers now insist that components last the life of the product. is can be achieved by specifying low-friction bearings – such as SKF Explorer bearings.
Engineers love a challenge and there is none greater than helping to protect the planet and create a more sustainable future for all. Ultimately it is the role of engineers in projects like those demonstrated earlier, that will be crucial in helping to arrest the e ects of climate change.
Low friction bearings can extend the life of conveyors and help to boost sustainability 16
DG-TT7-S with MOS Sensor Receives SIL 2 Approval e DG-TT7-S is solid-state metal oxide semiconductor (MOS) gas detectors used mainly for the detection of hydrogen sulphide (H2S) in arid locations having air present or in locations with continuous H2S background. e sensor specifies a wider continuous operating temperature range than the standard electrochemical sensors up to +65 °C. e device supports HART 7 protocol option for full configuration and diagnostics over non-proprietary interface.
Aubagne, France - Tyco Gas & Flame Detection is pleased to announce that the DGTT7-S H2S gas detector with Metal Oxide Semiconductor (MOS) sensor underwent stringent functional safety assessments by an external certification body and is now SIL 2 approved.
e MultiTox DG-TT7-S features on board relays, plug and play sensors and a high visible display that changes colour depending on the status mode.
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Atlas Copco supports World Cancer Day is crucial so it is very important to get to know your body.” Mama-Ray also enlightened Atlas Copco sta about the many di erent types of cancers. Each sta member could select a cancer ribbon of various colours each representing a di erent cancer – pink for breast cancer, white for lung cancer, blue for colon cancer, orange Members from Cancer Vive live with cancer for leukemia, yellow for Neroblastoma and and celebrate life by selflessly sharing their a black ribbon represents a Melanoma. stories as cancer survivors to spread the Sta members also learnt about the positive message that a cancer diagnosis does not have to be a death sentence. “Our symptoms of these di erent cancer types and Mama-Ray shared some tips on what to team of survivors knows that early look for, to act quickly, the do's and don'ts, detection can save lives,” says Raynolda the importance of eating healthy and adding that so much of what they do is regular exercise. “To help prevent the therefore focused around education and awareness. “We also honour those who have disease you should 'service' your body like lost their battle against cancer and we raise you would a car!” Mama-Ray who is a mother of two funds to help fight the disease through daughters, a grandmother to seven education.” grandchildren and a mother in her community, shared her story of how she Raynolda, who is a ectionately known as Mama-Ray, shared some excellent advice for survived cervical cancer which later spread people living with cancer. “Early detection to her ovaries and ultimately to her breasts. Atlas Copco South Africa acknowledged World Cancer Day (4 February), by hosting Reynolda Makhutle from Cancer Vive, a three-times cancer survivor who shared her experiences with sta members at the company's Jet Park head o ce on Friday, 3rd February, 2017.
Raynolda Makhutle (Cancer Vive) educates Atlas Copco sta about Cancer and early detection thereof.
Atlas Copco sta join hands with Cancer Vive to show their support for World Cancer Day. 18
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Atlas Copco is a worldleading provider of sustainable productivity solutions. e Group serves customers with innovative compressors, vacuum solutions and air treatment systems, construction and mining equipment, power tools and assembly systems. Atlas Copco develops products and service focused on productivity, energy e ciency, safety and ergonomics. e company was founded in 1873, is based in Stockholm, Sweden, and has a global reach spanning more than 180 countries. In 2015, Atlas Copco had revenues of BSEK 102 (BEUR 11) and more than 43 000 employees. Learn more at www.atlascopcogroup.com
Each sta member received a di erent colour ribbon representing 6 di erent types of cancer with us.” “At the time, I saw cancer as a monster because I didn't understand the symptoms or the disease. But now I see cancer as my Sta members from all Atlas Copco's business areas signed a poster designed ultimate stepping stone in helping others with this disease and to teach people how to especially for the initiative which is proudly displayed as a reminder of a special and detect early symptoms or even to prevent memorable day and Mama-Ray's message: cancer and live long full lives.” Mama-Ray “Knowledge is power – embrace it; early made a special request to Atlas Copco sta to stand by and support all those who su er detection can save your life.” from this disease. A number of cancer survivors in the audience related to MamaRay and briefly shared their stories. It was the first time that Cancer Vive visited Atlas Copco and Kathryn Coetzer, Atlas Copco Corporate Communications and ACademy Manager, says it was a great honour to welcome Mama-Ray. “ ank you Mama-Ray for making time to share your Atlas Copco sta members make their long and successful crusade against cancer mark to show their support & commitment
Raynolda Makhutle's interactive presentation with Atlas Copco sta 20
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SKF rotates to its core strength – bearings SKF has taken a strategic decision to shi its global business focus back to the company's core strength – bearings.
As a leading global technology provider since 1907, SKF has over the years developed a holistic product and service o ering that is integral to bearing performance and reliability. “Since 2007, we have been placing our energy into seals, lubrication, power transmission, mechatronics, condition monitoring and engineering service solutions to support our quality bearing range, and this we have done with great success,” says SKF Services and Solutions Manager for Southern Africa, Sarel Froneman. “But we may have been too successful, losing focus on what is fundamental to our rotating technology solutions namely our bearings.”
engineering usually deals with more complex requirements such as upgrades and customisations and may involve an investigation of the bearing for example. In consultation with the customer, the application engineering team can develop a complete and optimal rotating technology solution with bearings at the core. e SKF application engineering team's capabilities extend to modifications of standard products such as the manufacture of special sealing arrangement, changes to bore-sizes on standard couplings, etc. Froneman adds that his team can also modify entrances for condition monitoring or lubrication services.
According to Froneman, there are customers who have standardised on SKF's products and systems that do not necessarily use SKF bearings. He cites one such example of a local coal mine that has standardised on SKF's condition monitoring systems yet their crushers, conveyors, electric motors, gearboxes, etc. may not necessarily be equipped with SKF bearings. “So while the mine is a key SKF customer, they may never have placed an order with SKF for our core product!”
Bearing remanufacture is another key function of SKF's application engineering. “Our basic remanufacturing service can restore unused bearings that have passed their shelf life to 'as new' at approximately 15% of the cost of a replacement bearing. For bearings that have been in operation, we o er a full Level 4 remanufacturing service. Alongside substantial savings on cost compared to a new replacement unit, remanufacturing also o ers the advantages of fast turnaround times and a reduced carbon footprint as less new steel is required.”
While SKF continues to hold its solid reputation as a leading supplier of quality bearings, SKF CEO, Alrik Danielson believes that SKF must once again become the world's number one bearing company. “Our mandate is therefore to raise the profile of SKF bearings across all our product and services o erings,” states Froneman. “Our bearing o ering should remain our number one priority and common denominator of all our rotating technology products and services.” “ is having been said, we must not lose sight of the fundamental role of our application engineering and asset management service solutions.” SKF's application engineering is an integrated range of products designed to support the integrity of rotating machinery, the most critical components being bearings. SKF rotates to its core strength bearings. 22
Froneman explains that application
SKF's asset management services embrace maintenance solutions based on asset criticality geared to minimise the risk of failure by optimising equipment reliability and subsequent equipment life for maximised uptime. is move underlines the new SKF Group vision – 'a world of reliable rotation' and demonstrates the company's understanding of what customers ultimately want - improved productivity and lowest possible ownership costs through reliable equipment performance and extended equipment life. In conclusion Froneman states that it is not about selling as many bearings as possible. “Bottom line, by adding value through o ering holistic rotating technology and service solutions, we build long-term customer partnerships.”
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Atlas Copco portable dewatering pumps are tough! High performance, classleading fuel e ciency and complete portability underpin the PAS range of centrifugal diesel-driven open-frame dewatering pumps from Atlas Copco Construction Technique's Portable Energy division.
e fully portable PAS open-frame wet-prime pump_cost-e ective solution for applications where there is a consistent flow
e fully portable PAS openframe dry-prime pump o ers rapid priming time & higher capacities for intermittent flow applications 24
With a wide range of sizes, a discharge size ranging from 3inch to 8inch and performance levels from 105 m3/h to 630 m3/h, the pumps provide e cient solutions for virtually any dewatering application and flow level between these two points. e range starts with the 6.4kW PAS3 wetprime pump; with a maximum flow capacity of 120m3/h, a discharge size of 3inch, a maximum head of 24.5m and some 4.5 hours of fuel autonomy, the PAS3 is capable of handling solids of up to 40mm. Solids of up to 76mm are no match e fully portable PAS open-frame units are ideal for sites with no access to a power for the top of the range dry-prime PAS8 which operates at a head of up to 30m, source and include both wet- and dryo ers a discharge size of 8inch and boasts a prime options. e dry-prime variants maximum flow of 630m3/h. o er rapid priming time and higher capacities and are suited to applications Additional features and related benefits of where there are solids in the liquid. the PAS range include a high e ciency Stanford explains that the setting of the mechanical sha seals in an oil bath gives hydraulic end for reduced fuel consumption and a high capacity the pumps their dry running capability diaphragm pump for automatic priming. without the risk of damage to the sha e open-frame design o ers easy access to seals. “ ese pumps are therefore ideal for all components for fast, straightforward intermittent flow applications or when servicing and maintenance. there is a danger of running dry during long periods of continuous operation. e “Our pump portfolio is a perfect fit to our wet-prime pumps o er a cost-e ective forward-thinking philosophy and value solution for applications where there is a proposition,” notes Stanford. “ rough consistent flow. constant development we aim for manufacturing excellence in order to e PAS open-frame system comprises a centrifugal pump, a semi-open impeller for provide more compact, lightweight products to facilitate fast easy portability easy handling of solids of various sizes and ever more reliable and e cient without the risk of clogging and a large products that are good for the environment separator which enables the air to be and contribute to sustainable productivity separated from the liquid and sucked by for customers. Finally, we support our the vacuum pump, making automatic priming possible. Even with suction heights customers with quality service as well as expert a er-sales service from our team of of several metres, the rapid evacuation of qualified and skilled technicians to air from the suction pipe ensures fast optimise product functioning for activation of pumping. maximised uptime and productivity and lowest operational and ownership costs.” e modular design of the PAS range allows many di erent configurations that A range of portable, powerful and e cient meet multiple applications, from ground electrical submersible WEDA pumps which water dewatering on construction and mining sites, drainage of reservoirs, canals manages flows from 225 to 16.500 litres per minute with a maximum head of 85m or ponds, solids removal and sewage completes Atlas Copco Portable Energy's bypass to naval platform ballasting and comprehensive dewatering pump solutions. emergency situations such as flooding. e development of the PAS range is centred on vital information gained through Atlas Copco's close working relationship with construction customers around the world for over 140 years. “ is latest eighteen open-frame additions to our pump portfolio supports our ever popular PAS dry prime canopy version with flow capabilities of up to 590 m3/h,” says David Stanford, Portable Energy Business Line Manager.
New lab instruments generate faster sample results e Kruss K11 tensiometer, an ADU 5 distillation unit, a SVM3001 stabinger viscometer as well as the PMA 5 PenskyMartens closed-cup flash point tester are among the new pieces gracing the countertops in WearCheck's laboratory. ese highly accurate, sophisticated instruments - which have boosted the lab productivity by o ering new tests and saving time on existing ones - have also reduced the turnaround time to generate customers' sample results.
vapours of a sample to ignite. is instrument is suitable for flammability applications on fuels like diesel, heating oil, kerosene as well as both biodiesel and biodiesel blended fuels. e ADU 5, SVM3001 and PMA 5 are upgrades to existing equipment operated by WearCheck. e acquisition of these instruments has boosted our service delivery by yielding highly accurate results and reducing our turnaround time which is of benefit to our customers.
Using the Kruss K11 tensiometer, the analysis of the decomposition product content of transformer oil is done in accordance with ASTM D971. is fullyautomated instrument conducts precise measurement of surface tension and interfacial tension (IFT). e IFT is determined by measuring the force necessary to detach the platinum ring from the surface of the liquid of higher surface tension under rigid conditions based on the A given volume of sample is placed in a distillation flask and distilled according to fundamental Du Nuöy principle of strict guidelines as specified in the standard. establishing surface tension. e sample is heated and vapourised. is is data is key in the maintenance of vapour is then cooled in the condenser line transformers and in making informed and the condensate is collected in a graduated cylinder. e temperature of the decisions on whether to extend the life of recovered volume of condensate is recorded the oil – a useful way to save customers money. precisely during the test. e ADU 5, a fully-automated distillation unit which is operated by a touch screen interface, performs distillation tests according to ASTM D86. is is recognised as one of the most reliable methods to determine the boiling range characteristics of petroleum products, and is a critical measurement of the overall performance and safety of fuels.
e SVM3001 is a Stabinger viscometer which is capable of multiple parameter measurements in a single analysis, eliminating the need for many separate tests. e instrument can simultaneously measure kinematic viscosity according to ASTM D7042, dynamic viscosity, as well as the density according to ASTM D4052 in lubricating oils, base oils, additives and fuel oils. e sample is simply injected using a syringe and measurement is started via a touch screen panel. e automatic PMA 5 Pensky-Martens closed-cup tester measures the flash point at the lowest temperature at which the application of an ignition source causes the
For more information, please contact WearCheck on support@wearcheck.co.za or call (031) 700-5460 or visit www.wearcheck.co.za.
Leading condition monitoring specialists WearCheck recently invested in excess of R1.7 million in new high-tech equipment in both the transformer and fuel sections of their Joburgbased Speciality laboratory.
Condition monitoring specialists WearCheck recently invested in a range of sophisticated new laboratory equipment to boost productivity. Here, laboratory technician Msutu Nyokana operates the new Kruss K11 tensiometer.
WearCheck continues to lead the way in the condition monitoring arena and boost productivity, this time by investing in the latest international laboratory technology in the form of several new instruments. Here, the new ADU5 distillation unit is operated by senior lab technician Lizzy Chabangu of WearCheck.
Senior laboratory technician at WearCheck, Lizzy Chabangu, operates the condition monitoring company's brand new PMA5 Pensky Martens closed cup flashpoint tester in Johannesburg recently. 25
Mini grid solutions for Africa in the spotlight at Energy Revolution Africa 2017 An estimated 600 million people in Africa live without access to electricity, the majority of which are in remote communities; requiring major capital expenditure and time to get connected to the grid. e role of the private sector is more and more important in reaching the goal of giving people access to basic energy services. is is why Energy Revolution Africa 2017 has identified mini grids and new technologies as integral topics in their programme for the co-located event at African Utility Week at the CTICC from 16 to 18 May.
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Cuming, Head of Policy for Europe, the Middle East and Africa at Bloomberg New Energy Finance in the UK will be one of the speakers discussing the future direction for embedded power generation and how it can Energy Revolution Africa 2017 will bring reduce a country's dependency on a single insights from private and public sector experts involved in mini grid projects across source of energy. Africa as part of the three-day strategic Alastaire Dick, Operations Lead for Carbon programme focused on renewable energy War Room's Sunshine for Mines in South and community scale projects. Africa will present a case study on Andrew Tonto Barfour, project coordinator embedded power generation for the mining for Ghana's Ministry of Power, Benon Bena, sector. head of o -grid renewable energy at the Rural Electrification Agency of Uganda and New renewable energy markets in Africa are already showing greater appeal to Faruk Yusuf Yabo, Deputy Director of the Nigerian Federal Ministry of Power, Works international and local investors and as such, Frank Rizzo (Partner and Technology and Housing are among the speakers who sector leader for Africa at KPMG) and Evan will discuss mini and micro grid projects Rice (Business Development Manager, that are currently underway and that are anticipated for the future. is will include Energy Products at Tesla, South Africa) will discussions about the development of mini discuss exciting technology developments for the African power industry and grids through public and private renewable solutions to profitably reduce partnerships, including communities, and how government policy is accelerating this reliance on diesel. e technology session will conclude with discussions about storage development. solutions to help utilities and grid operators manage the integration of renewables and On Wednesday, 17 May, the focus will be meet their specific demand requirements. on how businesses, governments, “We are very excited about the global and communities and households can benefit from an investment in energy e ciency. A African energy experts, ranging from solution providers and renewable energy case study of South Africa's National Business Initiative around tax incentives for producers, to financiers and policy makers who will be meeting at this event,” said energy e ciency will be presented by: Evan Schi , event director of African Utility Karel Steyn, Senior Consultant on Energy Week and Energy Revolution Africa. Performance Verification at Eskom “It will no doubt be of immense value to Barry Bredenkamp, General Manager, new energy purchasers and large power Energy E ciency and Corporate users, from commercial property developers Communications at the South African and the agricultural sector to mines and National Energy Development Institute metros as well as anyone interested in the (SANEDI). exciting opportunities in the renewable technology sector.” Schi said. Other speakers and topics on the Visit http://www.african-utilityprogramme for 17 May include: week.com/era for more information about Werner van Antwerpen of Growthpoint Properties and Justin Smith of Woolworths Energy Revolution Africa or email auw@spintelligent.com to sign up for the Holdings will present examples from newsletter with industry updates. Register shopping centres, mines, farms and green via: http://www.african-utility-week.com/ buildings of how energy e ciency and egistrations/Step1/32447 sustainability practices are tailored for various types of companies Victoria
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It's Shavathon time at thyssenkrupp! e Industrial Solutions business area of thyssenkrupp is a leading partner for the engineering, construction and service of industrial plants and systems. Based on more than 200 years of experience we supply tailored, turnkey plants and components for customers in the chemical, fertilizer, cement, mining and steel industries. As a system partner to the automotive, aerospace and naval sectors we develop highly specialized solutions to meet the individual requirements of our customers. Around 19,000 employees at over 70 locations form a global network with a technology portfolio that guarantees maximum productivity and cost-e ciency.
Friday 3 March 2017 was a hive of activity at thyssenkrupp as sta members participate in the annual Shavathon to raise funds for the Cancer Assoc of SA 28
thyssenkrupp sta donate to Shavathon and raises a total of R6350 for Cancer Friday 3rd March 2017 was a hive of activity at thyssenkrupp head o ce in Sunninghill, Johannesburg, as sta members enthusiastically participated in the annual Shavathon to raise funds for the Cancer Association of South Africa. Hair literally went flying and the courtyard was awash with rainbows of colour as sta members embraced the initiative, making donations to have the privilege of getting their heads shaved or their hair garnished in spray paint for this most worthy cause. thyssenkrupp takes its role as a socially
responsible company very seriously and supports a number of sustainable initiatives like the Shavathon which has become a regular happening on the company's corporate social investment calendar. “It is an extremely popular event with sta because it is such a fun and colourful initiative that everyone can get involved in,” says Kgothatso Ntsie, thyssenkrupp Marketing and Communications Manager. “As always, this year's Shavathon was extremely well supported and we are proud to announce that we raised a total of R6350 for Cancer!”
Shavathon is a popular even for sta and has become a regular happening on the thyssenkrupp corporate social investment calendar
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Pre-certified medical air system solutions from Atlas Copco Compressor Technique Super-e cient, high performing, ultra-reliable and safe equipment is fundamental for the medical sector to remain compliant with exceptionally stringent and ever-tightening regulations. Atlas Copco's comprehensive range of medical air solutions is backed by more than 130 years of experience and know-how to o er optimal functionality and across-theboard compliancy.
“Our full range of state-of-the-art solutions which range from complete air plants, breathing and surgical air units and vacuum pumps to advanced control systems and terminal units are designed and engineered to meet a variety of clinical applications within hospitals, clinics, dental practices, veterinary laboratories, etc.,” states Charl Ackerman, Business Line Manager of Atlas Copco Compressor Technique's industrial air division. Atlas Copco's medical production facilities in Belgium, the UK and the USA positions the company not only meet but surpass the requirements of the most demanding as well as di ering standards and regulations such as the Medical Devices Directive MDD 93/42/EEC, European pharmacopoeia, EN ISO 7396-1, ISO 14971, Health Technical Memorandums HTM 0201 and HTM 2022. Ackerman explains that he HTM standard for example requires medical air and vacuum plants to have built-in redundancy as well as monitoring and alarm functions. Atlas Copco's ISO 9001, ISO 14001 and ISO 13485:2003 quality management systems for the design, manufacture, installation and testing of medical air and medical vacuum devices ensure the production of ultra-clean, certified pure medical, breathing and surgical air as well as vacuum.
Medial air must be ultra-pure and is considered as a drug and therefore is highly regulated in terms of purity. Atlas Copco's medical air systems which include the GA MED compressors, dryers and receivers as well as the mVAC vacuum products are ISO 7396-1 certified which ensures that the medical equipment meets the minimum requirements in safety and operating criteria. Ackerman a rms that Atlas Copco's medical air systems are precertified. “ is greatly simplifies the customer's certification process because when the pharmacist signs o the equipment a er installation, the equipment does not need to be recertified.” e GA MED oil-injected screw compressor range, also available in VSD (Variable Speed Drive), is designed, manufactured and tested in accordance with ISO 9001, ISO 14001 and ISO 1217. With the proven reliability of the latest highe ciency compression element, this screw compressor delivers outstanding performance, flexible operation and the highest productivity and subsequent minimal cost of ownership. e PDp filters can be considered as bacterial filters following tests and certification by an external laboratory. Energy typically represents over 80% of a compressor's life cycle cost. As a world leader in delivering sustainable productivity solutions,
Atlas Copco GA MED compressor range_also available in VSD_ drives down energy costs for medical facilities 30
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Industrial Air is a division within Atlas Copco's Compressor Technique business area. It develops, manufactures and markets oil-injected and oil-free air compressors, on-site nitrogen and oxygen generators, air treatment solutions and compressor controls and monitoring under several brands. In addition to serving a wide variety of industries, dedicated solutions are also available for marine, railway and oil and gas customers. e division's focus and main drive is to further improve its customers' productivity. e divisional headquarters and main production center are located in Antwerp, Belgium.
Atlas Copco mVAC systems provide highly reliable medical vacuum 32
Pre certified ISO 7396_1 Atlas Copco GA MED screw compressor range Atlas Copco always strives to provide the most energy-e cient solutions. “Our GA 5-15 VSD MED range will drive energy costs down considerably in medical facilities where air demand fluctuates. By monitoring the outlet pressure, the air flow is adjusted to the demand; the high turndown ratio and the new fan saver cycle can realise energy savings of up to 35%. Using Atlas Copco's on-site industrial gas generators and requiring only a supply of dry compressed air, customers can produce their own nitrogen and oxygen at a fraction of the price of using gas bottles which also require storage space. “Our range of nitrogen and oxygen generators which includes the OGP oxygen generator series with PSA (Pressure Swing Adsorption) technology provide flexible, reliable and cost-e cient solutions to meet customers' production needs,” states Ackerman. Atlas Copco supplies, installs and services gas generators, along with compressed air equipment.
at the point of connection as low as or lower than -600 mbar(e) / -450 mm Hg at all times. Every mVAC system is subjected to comprehensive Quality Assurance controls to eliminate the risk of service interruptions even in extreme circumstances. e mVAC system o ers (multiple) backup supply in case of failure of individual functional components. e carbon composite material of Atlas Copco's mVAC pumps will not break down or wear out like laminated blades. If the central controller should fail, every pump has its own controller. Every system is delivered with all interconnection piping and copper connections and the 'plug and play' approach ensures fast, simple installation. e mVAC is installed, piped and wired as modular stacked components or as a tank-mounted unit.
“Our medical air systems can be further maximised through e ective and easy control and monitoring,” continues Ackerman. Atlas Copco's next generation Elektronikon® graphic controller regulates system pressure to Atlas Copco's mVAC systems provide a highly push energy e ciency to new levels. For the mVAC we have opted for a multi-pump reliable medical vacuum (suction) mainly in operating theatres, intensive care, emergency arrangement to better match the flow demand. In this arrangement, the advanced and respirology units for a variety of applications such as wound drainage, assisted Elektronikon® Graphic controller maximizes energy e ciency by controlling the individual wound closure, chest and lung drainage, vacuum pumps and regulating the overall removal of excess blood during surgery, vacuum, ensuring even wear at all times. collection of other bodily fluids, gastric emptying, cleaning endotracheal tubes and e AIRConnect™ Visualization and liposuction (lipoplasty). Notification Package connects to extensive Consisting of between two and up to six air- monitoring and status information and cooled rotary vane type vacuum pumps and a provides immediate access to valuable central controller with an intelligent graphical information such as system status, alarms, user interface, an mVAC system is capable of trends and historical data enabling end-users to get the most out of the GA MED and reliably meeting even a large hospital's mVAC systems. vacuum requirements. e pumps can work independently to satisfy the required vacuum flow. Atlas Copco's mVAC systems are suitable for both continuous and frequent start/stop operation, keeping the vacuum level
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Four ways to optimise pump performance Pumps are the foot soldiers of the process industry, but their quiet dedication means they are o en ignored.
Ignoring the pumps is a big risk, because when these components break down – or run below optimum e ciency – the whole process su ers. Manufacturing and process companies are under huge cost pressures at the moment, making it vital to maximise assets and maintain uptime. ere are ways to optimise their performance in four di erent ways. e right bearing Bearings in centrifugal pumps support hydraulic loads imposed on the impeller, the mass of the impeller and sha , as well as loads due to couplings and drive systems. ey also keep the sha axial and radial deflections within acceptable limits for the impeller and sha seal. e bearings o en will face high axial loads, marginal lubrication, and high operating temperatures and vibration, all while the bearings attempt to minimise friction — which, if uncontrolled, can result in power loss, excessive heat generation, increased noise or wear, and early bearing failure. So, first and foremost, evaluate bearings (types, designs and arrangements) in the context of their anticipated operating environment. Suitable bearings are available to satisfy even the most di cult conditions faced by centrifugal pumps.
e right bearing, proper lubrication, a good sealing system and monitoring pump health performance will help to optimise pump performance 34
liquids, exclude contaminants, separate fluids and confine pressure. e choice of seal for centrifugal pump bearings depends on the unique demands and operating conditions of the application. Keep in mind, though, that the bearing and sealing arrangement represent an integrated system. Dynamic radial seals generally are the best choice for centrifugal pumps. ese seals create the barrier between surfaces in relative motion. Seal selection ultimately must be based on a thorough review of application parameters and environmental factors. Particularly in pump applications, for example, seals will be exposed to relatively constant pressure di erentials — making pressure seals (in which the seal cavity is pressurised) the preferred choice. Seals usually provide a much shorter life than the components they protect so don't fall into the common habit of scheduling seal replacement only at intervals dictated by requirements of other components such as bearings.
Monitoring pump health Regular measurement and analysis of key physical parameters such as vibration and temperature can detect pump system problems before they occur. Basic instruments can assess and report on vibration, temperature and other parameters. More advanced tools include online Proper lubrication Improper lubrication accounts for more than surveillance systems and so ware that can deliver real-time data. Many problems will 30% of bearing failures. Good lubricants prevent metal-to-metal contact and undesired manifest as vibration, which is widely considered the best operating parameter to friction. e common methods for the judge pump-train condition. Vibration can e ective lubrication of pump bearings include: grease, oil bath, oil ring, and oil mist detect problems such as imbalance, misalignment, bearing oil-film instabilities, and air-oil. rolling bearing degradation, mechanical Oil mist generates the least amount of friction looseness, structural resonance and a so (allowing rotational speed to be based on the foundation. Vibration measurements are quick and fairly non-intrusive because pump bearing design instead of lubrication equipment remain undisturbed. limitations) and creates a positive pressure within the bearing housing (fending o Operators can play a pivotal part in proactive invasive contaminants). Regardless of lubrication method, always specify lubricant maintenance strategies — by serving as the “eyes and ears” to detect equipment faults according to the demands on vertical sha s before problems escalate and performing and resistance to solids, pressure, basic maintenance activities. temperatures, loads and chemical attack. Sealing the system Bearing seals in centrifugal pumps handle four crucial tasks. ey retain lubricants or
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Using Degraded Land to Drive Renewable Energy Development and Job Creation Promethium Carbon is a dedicated carbon and climate change advisory firm. e company enjoys the position of being a trusted advisor to major international corporations operating out of South Africa. ey are knowledge leaders in the carbon industry, and advise government and private sector on climate change and energy-related matters. Services include carbon project development, foot printing and disclosure and climate change strategy development. More information is available at www.promethium.co.za
Degraded land can be used to create renewable energy solutions for communities, according to a feasibility study by Promethium Carbon for a community based renewable energy project. e feasibility study, funded by the Prosperity Fund under the British High Commission, was presented in Johannesburg on 17 March. Promethium Carbon presented its answer to the challenge to use degraded land to create renewable energy solutions for communities, with the Merafong Case Study for Renewable Energy and Community Upli ment as well as with the release of an updated and extended Renewable Energy Toolkit. e project aimed to diversify the economic activities in the area and reduce dependency on mining, therefore building community resilience. e added benefit is energy produced with low carbon emissions, contributing to South Africa's national greenhouse gas mitigation e orts, as well as restoring the grasslands to their original pre-mining state. Sites for the biomass production and bioenergy plant were identified for the Merafong Bioenergy Project through interaction with mining companies operating in the Carletonville area of the Merafong local municipality. Harambe Sustainable Ventures (Pty) Ltd, a BBBEE mine rehabilitation and bioenergy/wasteto-energy power generation company, will be developing this bio-energy project. Byproducts include the production of biochar, for remediating soil by increasing the carbon content and potentially supplying waste heat, for use by new industries attracted to the area surrounding the biomass power plant. A locally developed pyrolysis plant will provide heat energy to an Organic Rankine Cycle generator set, producing 2 MW output which will be wheeled to the o taker.
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Funding for the project will depend on a mix of equity, debt and concessionary funding. Debt funding will be secured from local institutions such as the Industrial Development Corporation, the Development Bank of SA and commercial banks. e loan will be paid back with revenue from the sales of electricity and biochar. “ is project will open the power generation market in South Africa to small businesses, enabling them to develop smallscale renewable energy projects for commercial use. It will lead to the creation of 'green' jobs, increased power generation from renewable sources and land restoration,” says Robbie Louw, director of Promethium Carbon. e British High Commission expressed its delight for the opportunity to be a partner in this project. “It demonstrates how a bioenergy project can positively impact the lives of local communities and help to build local commercial opportunities,” Tom Moody, Head of Regional Prosperity at the British High Commission, says. e Merafong Local Municipality, in conjunction with the West Rand District Municipality, is developing a bio-energy industrial park where projects such as this have the required regulatory support for development. Nikisi Lesufi of the Chamber of Mines said the project demonstrated cost-e ective benefits to mine rehabilitation, with positive community impacts a er life of mine. “ e use of abandoned and/or degraded land has long been an issue of concern and this project showcases the possibilities of converting, rehabilitating and producing positive advantages to communities through, what in essence is commercial farming, with the production of electricity.”
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Rand-Air docks at Saldanha Bay An extensive fleet of over 700 Atlas Copco compressors and generators, Rand-Air has a strong presence in South Africa with a spread of 10 branches and agencies. Rand-Air are market leaders in portable compressed air and power generation rental. O ering a range of latesttechnology electric and diesel generators, complemented by an environmentally-friendly range of oil-free compressors. Rand-Air's team are highly qualified with extensive knowledge and are well-known for their exceptional customer service.
Leading compressor and generator hire company, Rand-Air, is determined to provide uncompromised service to their customers, as well as reliable and wellmaintained equipment. As part of this commitment, the company recently opened a branch in Saldanha Bay, in an e ort to expand their reach across the country. Rand-Air has been servicing a number of industries for the past 44 years and have built a strong presence across South Africa. e need to support the the steel industry and the related contractors around the sector such as marine contractors, sandblasters etc. was imminent. Rand-Air recognised this as an opportunity to better service this market. “We service a niche market and we want to make our equipment more readily available where there is a need,” explains Louwrens Erasmus, General Manager at Rand-Air. Already making a positive impact, RandAir is proudly involved in the Saldanha Bay Industrial Development Zone (SBIDZ). A project that aims to create a world-class, internationally recognised and respected South African marine engineering hub.
the importance of retaining and expanding existing business across the country. “Stimulating the local economy is of immense strategic importance to Rand-Air. We understand that expansion is the most e ective, most economical and most sustainable way of creating jobs which is paramount to a healthy economy,” Erasmus continues. As the economy continues to develop, it has become more important than ever for large operations to extensively focus on their primary core-business. Outsourcing is a popular mechanic to enable this as it facilitates operational e ciencies. Not only does outsourcing alleviate the pressure of maintaining equipment but it is also the most cost e ective option as there is no capital outlay required. Rand-Air remains fully committed to delivering latest-technology equipment that meets customer demands. is is coupled with a highly qualified team that are driven to provide exceptional customer service around the clock.
South Africa accounts for 40% of the entire African continent industrial output, and 25% of its GDP. is is why Rand-Air sees
Saldanha Bay Industrial Property 38
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CDE Global to Exhibit new EvoWash and Infinity screen at CQMS 2017 CQMS, Ireland's construction and quarry machinery show, will be even bigger and bolder in 2017 for Northern Ireland-based wet processing equipment company CDE Global. e world's leader in materials washing products, CDE will be exhibiting its staple EvoWash plant and a high tech screen from its new Infinity range on 21-22 April 2017 at Molloy's Quarry in Tullamore. Purchased by long-term client Roadstone, a subsidiary of Irish CRH Group, a leading international producer of building materials, the EvoWash and Infinity screen will go about their washing duties on their Classis site in Co. Cork a er an estimated 8,000 visitors have had the opportunity to discover - or re-discover - them at CQMS.
One of CDE Global's first and earliest customers, Roadstone has been using CDE washing equipment on most of its sites across Ireland since 2002. e original multi-sand plant sold for the Classis site is now being upgraded a er 15 years of loyal services to Roadstone, having produced more than 3 million tonnes of sand for the construction industry. Due to increased demand for product and the improved production o ered by wet screening at the primary stage, Roadstone decided to upgrade their existing plant with an EvoWash 151 sand washing plant and an Infinity screen able to adapt to variations in feed contents. 450 tonnes per hour of raw sand and gravel material will be fed into the plant to produce 105 tonnes per hour of 0-4mm, 155 tonnes per hour of 4-20mm, 90 tonnes per hour of 20-50mm and 100 tonnes per hour of +50mm. e washed materials will be used in the production of ready-mixed concrete, concrete blocks and blacktop. With a new and improved washing system, issues of downtime will be minimised. Infinitely ingenious High tech screening technology has become a must for washing plant operators who want optimal production results from a reliable range of equipment. CDE invests extensively in its research and development department to remain ahead of the innovation curve, and with all products being manufactured and tested at its assembly facilities in Cookstown, Northern Ireland, reliability is guaranteed. A case in point, the Infinity screening range was launched in 2016 and has since become one of the firm's most popular products. e Infinity screens have bolted construction, which eliminates the need for welds. e USpan cross-members, in combination with the construction of the side walls, deliver higher specific sti ness that prolongs the working life of the screen. Cathal Lavin, Location Manager at Roadstone Classis, opted for the CDE inclined sizing Infinity screen with VibroCentric electric drive system. He explained: “Our existing multi-sand plant and dry screen have performed extremely well over their 15-year lifetime, but as construction technology
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evolves, so does demand for increasingly consistent sand gradings. Given the increased requirement for sand and coarse aggregates for our downstream products, the time has come to grow our production capability. “As a result, we needed to upgrade in order to ensure that we achieve maximum TPH every hour and that our plant is capable of adapting to challenges such as variable deposit moisture content brought by weather and natural variations within the deposit. “We have nurtured a solid relationship of trust with CDE over the years and had no hesitation in turning to them for an upgrade of our existing CDE equipment. CDE equipment is used across most of Roadstone's Sand & Gravel sites in Ireland and we have had the opportunity to witness the reliability and hard-wearing of the CDE o er.” High tech for high quality production Kevin Vallelly, Head of Product Development at CDE commented on Roadstone's new Infinity screen with VibroCentric electric drive system: “A key success of the VibroCentric drive system is the harnessing of the power used and ensuring the maximum transfer of energy to the material being screened. “ is system is employed on the Infinity PLine range of inclined sizing screens. A unique sha design allows for a significant reduction in the weight of the drive system and the screen assembly which results in a significant reduction in overall power consumption. “As a result, dewatering performance is maximised to allow the final washed product to be ready for market straight from the belts.” Cathal Lavin concludes: “We are very much looking forward to the upgrade of our CDE multi-sand plant. e new CDE EvoWash and the Infinity screen will overcome the challenges presented by increased demand and allow us to produce the required grades of clean sand and aggregates to answer our customers need for high quality building materials.”