NEW PRODUCTS Range of rotary screw blowers expanded Kaeser Compressors has recently expanded its range of EBS series rotary screw blowers with the launch of the EBS 410 models. Designed especially with water industry applications in mind, these new models represent a milestone in the development of oil-free compression blower technology. With a flow rate of 10 - 40 m³/min and pressure differentials from 0.3 to 1.1 bar, as well as a selection of motors ranging from 22 to 75 kW, the new and innovative EBS 410 series rotary screw blower models set new standards in terms of energy efficiency, space-saving design and automation; The standard ‘STC’ version is now equipped with an energy-saving IE4 super premium efficiency motor that reduces energy consumption and therefore
costs. Kaeser is currently the only compressed air systems provider to equip its compressors with super premium efficiency IE4 class motors. The ‘SFC - Sigma Frequency Control’ version is equipped with a frequency converter and a synchronous reluctance motor – a slip-free design that combines all the advantages of high efficiency permanent-magnet motors with those of robust, service-friendly asynchronous motors.
Hoses optimise safety underground A company dedicated to ensuring total safety and standards compliance of winches, Australian Certified Winches (ACW), has used Hydraulink to provide and install hydraulic hoses and fittings optimised by expert hydraulic engineering required for an innovative new underground winch developed for major mining leader BHP. BHP tasked ACW with designing a winch that could haul double the capacity, 100t, within the same physical space as their previous 50t winch, for one of its major Australian underground mining operations. “The solution was to integrate two 350,000 Nm wheel drives inside the winch drum,” said Mr Grant Barrett, Director, Australian Certified Winches, who has more than 25 years’ experience in designing and building industrial winches. “The winch is to be used to remove longwall machines once the longwall is finished and being moved to another seam. Current methods involve the use of hydraulic cylinders, but these can be limited in stroke length, meaning a lot more time re-rigging the haul rope. The winch has 300m of rope, allowing for a continuous haul,” said Mr Barrett. ACW focuses particularly on ensuring winches are suited to the particular task, and have the correct documentation and certification to operate under any appropriate regulations. Neat hydraulics in the powerpack inside the new winch
“The new winch has an onboard closed loop hydraulic
Australian Certified Winches’ new winch design can haul double the capacity within the same space
system that is driven by the underground emulsion fluid, so we needed expert hydraulics assistance in engineering the winch for underground use,” said Mr Barrett. Mechanical Design Guideline 41 (MDG-41) outlines safe working practices for the manufacture and assembly of high pressure hoses and fittings, including hazard identification, assessment, elimination and reviewing of risk. The winch was factory tested using a 150t load cell and shackles, where it pulled 120t with ease.
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NZ Manufacturer August 2020 /
www.nzmanufacturer.co.nz
