This article mainly introduces:

S.Africa hydraulic cylinder,pressure retaining cylinder manufacturer,pressure retaining cylinder

(S.Africa pressure retaining cylinder,produced by Hengyu Hydraulic Co., Ltd）

pressure retaining cylinder are widely used in S.Africa，because of smooth movement，excellent fatigue and impact resistance，high work efficiency.So our company has designed pressure retaining cylinder for customers from S.Africa.

Introduction to pressure retaining cylinder:

The internal leakage of the pressure retaining cylinder should be prevented when the pressure retaining cylinder is used. The internal leakage of pressure retaining cylinder includes the leakage caused by excessive wear of pressure retaining cylinder block seal, piston rod and seal cover seal and piston seal. The cause of sealing leakage between the piston rod and the seal cover is that the seal is wrinkled, squeezed, torn, worn, aging, deterioration, deformation, etc., and a new seal should be replaced at this time.

The difference between the integral pressure retaining cylinder and the split pressure retaining cylinder: The integral pressure retaining cylinder and the split pressure retaining cylinder in the pressure retaining cylinder are two different pressure retaining cylinders, and they are very different. The whole pressure retaining cylinder, which is cast in one body, is not prone to problems such as oil leakage; The split pressure retaining cylinder is welded twice, so if it is not handled well at the welding, it is prone to problems such as oil leakage and pressure retaining cylinder damage. Therefore, it is obvious that the answer to this question is for difference.

The method of sleeve pressure retaining cylinder to improve the processing quality: there is a big gap in the service life of post-plating polishing and post-plating polishing, especially in mass production. Strictly clean the flying edge and burr of mechanical components, especially the edge of the sealing groove, and the tiny metal burr, strictly clean before assembly. The surface fatigue strength and stress corrosion resistance of the pressure retaining cylinder can be significantly improved by rolling in the finishing of the inner holes of the pressure retaining cylinder. The roughness of the surface of the friction pair is generally controlled between Ra0.4 and 0.8.

pressure retaining cylinder abnormal sound, hysteresis phenomenon cause and elimination method: the piston rod is extended with abnormal sound and hysteresis, if the pressure retaining cylinder is placed for a period of time, the pressure retaining cylinder may enter the air, and the movement can be normal after dozens of repeated movements. If it still cannot be eliminated, check whether the load is aligned with the axis of the piston rod; Retracted piston rod installation helps to align the load with the piston rod. If the flow is unstable, it will also lead to abnormal movement of the piston rod. Check the relevant components of the hydraulic system.

Answers to some questions about pressure retaining cylinder:

How does the hydraulic solenoid valve realize that the cylinder stops at any position?
Use an O-type medium function solenoid directional valve, or use a Y-type solenoid directional valve and a hydraulically controlled check valve.

What is a constant velocity cylinder? What is the difference between hydraulic cylinder and constant velocity cylinder?
The constant speed cylinder should be the same as the speed of the piston rod extension and withdrawal cylinder is called the constant speed cylinder. The difference between it and the ordinary hydraulic cylinder is that the ordinary hydraulic cylinder only has a piston rod extended out, and the general extension speed is slow and the recovery speed is fast, because of the relationship between the effective area. Effective area of piston chamber > Effective area of piston rod chamber. The effective area on both sides of the constant speed cylinder is the same, because there are piston rods sticking out at both ends. The application of constant speed cylinder is most common in grinding machines.