This article mainly introduces:

Egypt hydraulic cylinder,reciprocating cylinder manufacturer,reciprocating cylinder

(Egypt reciprocating cylinder,produced by Hengyu Hydraulic Cylinder Factory）

reciprocating cylinder are widely used in Egypt，because of excellent fatigue and impact resistance，no need for deceleration device，long service life.So our company has designed reciprocating cylinder for customers from Egypt.

Introduction to reciprocating cylinder:

When installing the reciprocating cylinder, the axial ends of the reciprocating cylinder cannot be fixed. Due to the effect of liquid pressure and thermal expansion in the reciprocating cylinder, there is axial expansion. If the two ends of the reciprocating cylinder are fixed, all parts of the reciprocating cylinder will be deformed. When disassembling the reciprocating cylinder, it is strictly forbidden to hammer the reciprocating cylinder and the piston surface, such as the reciprocating cylinder hole and the piston surface is damaged, do not allow sandpaper grinding, to use a fine oil stone carefully grinding. The clearance between the guide sleeve and the piston rod should meet the requirements.

Analysis of commonly used seals: The wear ring and slip ring commonly used on the reciprocating cylinder are generally made of polytetrafluoroethylene + graphite, because pure polytetrafluoroethylene is easy to produce plastic creep, which is only suitable for low pressure and low wear resistance conditions. If the sealing ring used is a composite material formed after adding graphite filler, the performance can be effectively improved, the ability to resist plastic creep is increased by 2 to 3 times, the initial deformation caused by the load is reduced by 30 to 60% : the rigidity is increased by 2 to 3 times: the dimensional stability under heat is increased by 2 times, and the hardness is increased by l0 to 15%.

Before the reciprocating cylinder is removed, the system should be unloaded, the loop pressure is zero, the oil source should be cut off, and the oil port should be blocked after the oil port distribution pipe is loosened.

In order to ensure the service life of the reciprocating cylinder, the medium used must not be mixed with impurities and stolen goods, so as to avoid scratching the inner arm of the reciprocating cylinder, causing damage to the seal and causing leakage in the reciprocating cylinder. It is required that the filtration accuracy of the system is not less than 80μm, the oil pollution is strictly controlled, the hydraulic oil is kept clean, the performance of the hydraulic oil is regularly checked, and the necessary fine filtration or replacement of the new working hydraulic oil is carried out.

Answers to some questions about reciprocating cylinder:

Is there a national standard for the testing of hydraulic cylinders?
Generally speaking, the cylinder test is carried out according to JB/JQ20302 Allowable leakage of cylinder in pre-factory leakage test. GB2879 hydraulic cylinder piston and piston rod dynamic seal groove type, size and tolerance. GB6578 hydraulic cylinder piston rod dust ring groove type, size and tolerance. GB7938 hydraulic cylinder and cylinder nominal pressure series, etc.

What is the function of the Reza mounted master cylinder?
The role of the Resa-mounted master cylinder is to pump the concrete from the hopper to the delivery pipe and to provide sufficient concrete outlet pressure so that the concrete can reach the specified location.