This article mainly introduces:

Tunisia hydraulic cylinder,pressure retaining cylinder manufacturer,pressure retaining cylinder

(Tunisia pressure retaining cylinder,produced by Hebei Hengyu company）

pressure retaining cylinder are widely used in Tunisia，because of high work efficiency，long service life，smooth movement.So our company has designed pressure retaining cylinder for customers from Tunisia.

Introduction to pressure retaining cylinder:

The piston rod and guide sleeve function of the pressure retaining cylinder is crucial: the relative motion pair between the piston rod and the guide sleeve is the main factor causing external leakage, if the chrome layer on the surface of the piston rod is spalling or producing longitudinal tensile marks due to wear, it will directly lead to the failure of the seal.

We can not just consider the price and ignore the quality when we purchase the pressure retaining cylinders. Now some manufacturers produce unqualified products in order to reduce costs, the piston rod is not adjusted, the rod coating is not enough, the pressure retaining cylinder finish can not reach, the guide sleeve should use copper, but instead of ductile iron, although the cost is reduced, the quality of the pressure retaining cylinder is not required.

pressure retaining cylinder can not drive the load troubleshooting: oil pressure is too low. pressure retaining cylinder selection specifications are too small. Leakage in pressure retaining cylinder or associated hydraulic system element.

The machining accuracy of the pressure retaining cylinder depends on the level of equipment, production technology and testing means. pressure retaining cylinder processing methods are commonly used in two ways, one is rough boring - fine boring - rolling, generally with 45# seamless steel pipe, this method of processing quality is good, but the cost is high. Another method is to use 20# cold-drawn seamless steel pipe, and then honing, the cost is lower. The piston rod must be adjusted and straightened before processing, and the coating thickness of the piston rod is generally not less than 0.03mm. The piston must be machined in strict accordance with the groove size and tolerance requirements given in the seal manual.

Answers to some questions about pressure retaining cylinder:

What is the valve on the hydraulic cylinder?
Oil valve, relief valve, overload valve, explosion-proof valve, etc., these are very convenient to insert! The oil valve, the overload valve and the blasting valve are very important for larger cylinders. Manufacturers will not offer you the selection. You need to choose the values by yourself according to your system, pump, cylinder, environment, working conditions and other comprehensive consideration!

Is the hydraulic cylinder leaking because there is no pressure?
HC hydraulic cylinder common leakage reasons, first: most of the reasons are because the seal surface wear or aging leads to poor sealing, so there is no pressure to operate, as long as the piston seal can be replaced. Second: It may also be the piston rod strain, repair the piston rod is good. If it is because the piston strength is not enough and the playing time is long, it is necessary to replace the piston.