This article mainly introduces:

Switzerland hydraulic cylinder,retractable cylinder manufacturer,retractable cylinder

(Switzerland retractable cylinder,produced by Hebei Hengyu company）

retractable cylinder are widely used in Switzerland，because of clever hydraulic energy conversion，simple structure and reliable operation，excellent temperature resistance.So our company has designed retractable cylinder for customers from Switzerland.

Introduction to retractable cylinder:

The quality of the retractable cylinder can not be ignored in the purchase of the retractable cylinder. The retractable cylinder is the main component of the retractable cylinder, the single pillar for mining, the hydraulic support, the gun tube and other products, and its processing quality directly affects the life and reliability of the entire product. retractable cylinder processing requirements are high, its internal surface roughness requirements are Ra0.4 ~ 0.8μm, the coaxiality, wear resistance requirements are strict. The basic feature of retractable cylinder is deep hole processing, which has always troubled the processing personnel.

retractable cylinder installation precautions: Before installing the retractable cylinder into the system, the parameters on the retractable cylinder label should be compared with the parameters when ordering. The base of the retractable cylinder must have sufficient stiffness, otherwise the retractable cylinder will bend upward into a bow when pressurized, so that the piston rod will bend.

After chrome plating of the piston rod of the retractable cylinder, the surface flatness is not fully treated: After chrome plating of the piston rod surface, the method of post-plating polishing should be changed to post-plating polishing. Although it is necessary to increase the thickness of the coating before grinding (generally increased by about 0.02 in the diameter direction), it can remove chrome plating defects well, and test the binding force of the coating. In addition, due to the micro-roughness of the grinding surface, the trough can store lubricating oil, which can improve the wear resistance and extend the service life.

Classification of retractable cylinder: according to the mode of movement it can be divided into linear reciprocating movement type and rotary swing type; According to the effect of liquid pressure, it can be divided into single acting type and double acting type. According to the structure, it can be divided into piston type, plunger type, multistage telescopic sleeve type, pinion and rack type, etc. According to the installation form can be divided into rod, earring, foot, hinge shaft and so on; According to the pressure grade can be divided into 16Mpa, 25Mpa, 31.5Mpa and so on.

Answers to some questions about retractable cylinder:

When there is only one hole in the oil inlet and outlet of the hydraulic cylinder, will there be oil leakage?
It is a single acting oil cylinder. This oil cylinder is always driven by hydraulic oil in advance, and is generally pulled back by the spring at the bottom of the piston or the weight of the cylinder piston or the load. But either way, it has nothing to do with any internal leakage. Whether the oil is internally drained is related to the sealing and accuracy of the cylinder itself.

What should we pay attention to when using the cylinder?
When using the cylinder, we should pay attention to the environment and temperature in which it is located as follows: 1. Before working, the hydraulic cylinder must carry out several reciprocating movements under low pressure (greater than the starting pressure), and work normally after removing the gas in the cylinder. 2. Precautions when removing the hydraulic cylinder: ① The pressure in the hydraulic circuit is reduced to zero before disassembly. ② The screw thread at the top of the piston rod should be prevented from damage when disassembling. ③ Due to the different structure and size of the hydraulic cylinder, the order of disassembly is also slightly different. Generally, the fastening bolt of the end cover should be loosened first. Internal card chain card key application special tools.