Loader Hydraulic Cylinder

Loader hydraulic cylinder is divided into two types: lifting hydraulic cylinder and tilting hydraulic cylinder. Loader oil cylinder will be subjected to huge impact load in the work, so the fatigue strength of piston rod and the adhesion of plating layer become the key to the design of loader hydraulic oil cylinder.

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Product Details

Product Description

Loader hydraulic cylinder is divided into two types: lifting hydraulic cylinder and tilting hydraulic cylinder. Loader oil cylinder will be subjected to huge impact load in the work, so the fatigue strength of piston rod and the adhesion of plating layer become the key to the design of loader hydraulic oil cylinder.

The integral forging piston rod can greatly improve the fatigue strength of the piston rod, hard chromium plating nickel chrome plating has a better performance and corrosion resistance, impact resistance and can withstand shock and vibration of the bad work environment.

The design structure of the utility model oil seal device of hydraulic cylinder of loader can significantly improve the oil leakage phenomenon of hydraulic cylinder, which can be applied to the environment with bad working conditions. And can effectively extend the service life of hydraulic cylinder parts.

The utility model relates to an oil seal device which can solve the current performance of loader hydraulic cylinder. The design structure of the oil seal device of the utility model can significantly improve the oil leakage phenomenon of the hydraulic cylinder. 

It can guarantee the loader in high hydraulic oil temperature rise to 120 ℃ is still normal, steady work; It can be applied to the environment with poor working conditions. And can effectively extend the service life of hydraulic cylinder parts. 

The piston rod guide ring and piston guide ring in the oil sealing device play the role of guide and support in the process of system operation, and protect the piston rod and cylinder inner wall from being pulled. The piston rod seal ring and piston seal ring form a layer of oil film on the piston rod surface and the inner wall surface of cylinder tube at the same time, which plays a lubricating role. 

Product 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.

Product Advantages:

All specification is designed by professional engineer

All material is high quality-Seal kits are purchased from USA, Japan, UK and Sweden.

All cylinders are 100% tested before package to ensure every cylinder is qualified for its purpose

Ensure goods can arrive at customer safely

One-year warranty and life long time follow up service is offered to solve any problems you met when use our products

Technical parameters:

Excavator  hydraulic cylinder

Bore Dia.(mm)

Rod Dia.(mm)

Stroke(mm)

Machine Type(T)

Min

70

40

106

1.8

Max

360

260

3150

400

Application

●Construction Machinery cylinders for: loaders, excavator, forklift, bulldozer, dumper, roller, crane etc.

●Metallurgical Machinery cylinders for: decelerator, tile press etc.

●Mining Machinery cylinders for: crasher, coal cutter etc.

●Agricultural & forestry machinery cylinders for: soil preparation machine, harvester, weeder etc.

Hot Tags: loader hydraulic cylinder, suppliers, manufacturers, factory, customized
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