Customer Specific Hydraulic Cylinders About Danitech Danitech Production A/S is a manufacturing company producing customer specific hydraulic cylinders and turned parts in all types of stainless steel. Our product range High-Volume Cylinder Production: Tubes Ø40-Ø125 (ID) Length: 300-2000 mm Rods Ø20-Ø90 (OD) Length: 300-2000 mm Low-Volume Cylinder Production: Dimensions up to 250 mm (ID) supporting product range of high-volume customers
Applications Danitech delivers hydraulic cylinders to a big variety of applications, such as: • • • •
Agricultural machinery Cranes, person lifts Waste compactors, balers Lifting tables
Our strength We have many years of experience and knowledge within hydraulic cylinders, systems and machining of stainless steel. Our production has a flexible setup with short lead times.
Turned Parts Stainless steel products: Ø3-Ø20 Length: 2-500 mm Ø10-Ø65 Length: 2-350 mm
Why Us? • High quality products • Long lifetime • Strong delivery performance • Expertise in designing cylinders • We are reliable, trustworthy and proactive
COLD DRAWN WELDED TUBE H8 Material
Tube according to EN 10305-1/2 – E355-SR Certificate 3.1 to EN10204
Straightness
Max 0,3 mm on 1000 mm
Tolerance/Roughness
H8 – RA max 0,3 µm
Steel Type
St 52
Bursting Pressure
Min 600 bar
PISTON ROD Material
CK45 – with certificate
Rod Quality
Above 20 mm All rods according to ISO 9227 (NSS) standard 200 hours rating 9
Chromium Thickness
Min 20 µm
Chromium Hardness
850 to 1000 HV 0,1
Roughness (max)
RA < 20 µm
Tensile
Min 580 N/mm2 (MPa)
Tolerance
ISO F7
Straightness
0,5 mm on 2000 mm
Corrosion Test
ISO 9227 and ISO 10289 (NSS)
Max speed (recommended)
0,5 m/s
Ball Joints Ball joints are delivered in all known editions and standard specifications. Welding All welding seams are produced with reference to UNI 258/257. Cleaning Our tubes are cleaned inside a high-pressure cleaning chamber after welding and before mounting.
Paint job All hydraulic cylinders are delivered with a black base coating. On request, we deliver the cylinders in customer specific colours or coatings.
GUIDE RINGS FOR PISTON ROD Material
Polyuretan 94 Shore
Working Temperature -30°C to +80°C Tolerance
H11
SEAL IN THE FRONT HEAD Material Inside Backup Ring
Polyuretan
Material O-Ring
NBR 70/75-85/90 Shore
Max Pressure
250 kg/cm²
PISTON SEAL Material
NBR
Max Pressure
500 kg/cm²
Tolerance on Recess for Sealing
H11
GUIDE RINGS FOR THE MAIN PISTON Material
POM + Glass
Max Radial Load
400 kg/cm²
The sealing of the piston is supported both with a backup ring and a guide ring, which gives a good and strong sealing in both directions. The expected lifetime for all sealing is calculated to 300.000 meters stroke, in normal working conditions with clean oil - ISO 20/18/15.
Test All cylinders are tested with pneumatic with a pressure of 8-10 bar and a special soap on the weldings and connectors to check for leakage. On request, the cylinders will be tested with hydraulic oil. These cylinders are typically used in normal and medium duty applications. For heavy-duty applications please contact us for an offer: Danitech Production A/S Melskov Alle 10 DK-6100 Haderslev E: production@danitech.com T: +45 74 52 04 52 F: +45 74 52 07 30