DALLAST automobile tail plate hydraulic cylinders are all advanced processing technology. They are made of 27simn material with high tensile strength and high yield strength. The anti-fatigue polyurethane and PTFE seals are scientific and reasonable in structure, reliable in performance and easy to install and maintain. With a large tonnage and a maximum working pressure of 220 BAR, it can meet the needs of different users in different environments. The hydraulic lift cylinders are highly evaluated and widely recognized by the market.
Process
1. Raw materials entering the factory, 27SiMn, 40CrMo, ST52, 45# steel tubes or bars for choice
2. Do the pre-treatment including pickling, phosphating and saponification, and then cold-draw the seamless steel tubes.
3. Put the steel tubes into the tempering furnace to do the stress relief annealing in convenience of the subsequent the processing.
4. Multi-roll straightening machine, with 10 straightening points, achieves the automatic rolling straight improving the efficiency greatly
5. Heat treatment to obtain work pieces with different properties by changing their internal microstructure or surface chemical composition.
6. Cylindrical degree can be controlled within 0.03mm and the surface roughness is up to 0.4 by honing with range:φ40mm-φ450mm and longest length: 12000mm
7. Machining processes to obtain high precision parts with complex shapes strictly according to the detailed drawings.
8. Electroplating production process fulfills the functional and ornamental requirements for coating work pieces of different dimensions according to specific application requirements.
9. Cleaning all the parts by automatic cleaning machine in the special solution and under special temperature control effectively.
10. All the parts are assembled into complete cylinders according to the strict assembly instructions by skillful workers in dust-free workshop.
11. Do proof pressure and performance tests to check whether the cylinders can operate smoothly and stably under the specified pressure with no leakage and deformation.
12. Do the painting including high quality primer and topcoat to obtain beautiful appearance and protect the cylinders against the anticorrosion.
13. Wooden pallet or boxes packing with plastic films wrapped on the surface, suitable for long-time sea transport.
Believe that our professional automobile tail plate hydraulic cylinders can provide more reliable products
Product Introduction
Production detail
Product Process
Company Office
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FAQ
Brazil customers consulted with us about automobile tail plate hydraulic cylinders
Q: The pressure of the hydraulic station is expressed to 20MP. How many tons can load capacity, hydraulic cylinder bore size 125mm? How to convert? Please list. Thank you
Answer: 20Mpa=200kg/cm^2 The hydraulic cylinder with a cross-sectional area of 1cm2 can lift up to 200kg. Therefore, F=200X3.14X(125/2)^2=24531kg=24.5 tons
Q: How many hours is your piston rod resistant to salt spray?
A: The surface of our specially treated piston rod is black, the finish is RA<0.2 um, the tensile strength and yield strength are both greater than 900MPA, the surface hardness is HV 900, and the neutral salt spray test is 1100 hours; it is especially suitable for alkaline use. Environment, if you have any needs in this regard, please contact us.
Q: What is the main maintenance of hydraulic cylinder repair?
Answer: After disassembling the hydraulic cylinder: 1. Clean the hydraulic cylinder and piston; 2. Replace all the seals; 3. If there is a valve, repair it to ensure sealing and flexibility; 4. Handle all deformation parts; 5. Install the experiment.
If interesting our automobile tail plate hydraulic cylinders and get more information, please contact our sales department, we are professional manufacturer of hydraulic lift cylinders.
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