This article mainly introduces:

Poland hydraulic cylinder,synchronous hydraulic cylinder manufacturer,synchronous hydraulic cylinder

(Poland synchronous hydraulic cylinder,produced by Hengyu Group）

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

Introduction to synchronous hydraulic cylinder:

When the synchronous hydraulic cylinder needs to be stored for a period of time, please follow the recommended methods: The synchronous hydraulic cylinder should be stored in a dry, clean, non-corrosive gas indoor environment, pay attention to protect the synchronous hydraulic cylinder from internal corrosion and external damage. If the indoor requirements cannot be met, the hardened and well-drained ground should be cushioned at least 30cm, and the upper part should be covered with waterproof storage. The oil synchronous hydraulic cylinder should not be in direct contact with water vapor for a long time. The synchronous hydraulic cylinder should be placed as vertically as possible with the piston rod facing up, which minimizes corrosion due to possible condensation in the synchronous hydraulic cylinder and permanent deformation of the seal due to the piston and rod weight. (When the shield is stored in the shield machine, the support shoe is placed upward). Keep the oil port protective cover until the pipe is connected. For long-term storage, the protection should be added on both sides of the piston of the synchronous hydraulic cylinder Before working, the synchronous hydraulic cylinder must be run repeatedly with low pressure (greater than the starting pressure) to discharge the air in the synchronous hydraulic cylinder before normal work. The oil inlet and outlet and the joint must be tightly fastened with a combination pad to prevent oil leakage.

The advantages and disadvantages of the synchronous hydraulic cylinder: the surface of the synchronous hydraulic cylinder by painting, coating protection treatment, bright luster is not easy to rust, all raw materials of the synchronous hydraulic cylinder through the top heat treatment, high manufacturing precision, belongs to the precision machinery, has a simple structure, stable quality, high mechanical efficiency, easy to achieve automation and many other advantages. However, hydraulic technology also has the shortcomings of oil leakage, oil temperature change affecting the control of running speed, noise, expensive cost and high maintenance cost.

Repair method of small range wear of oil synchronous hydraulic cylinder: 1. Use oxygen-acetylene flame to bake the scratched part (master the temperature, avoid surface annealing), bake the oil on the metal surface all the year round until no sparks splash; 2. The scratched part is treated with an Angle grinder, the grinding depth is more than 1 mm, and the groove is polished along the guide rail, preferably a dovetail groove. Scratch both ends of the drilling deeper, change the force situation; 3. Clean the surface with absorbent cotton dipped in acetone or anhydrous ethanol.

Causes and countermeasures of oil synchronous hydraulic cylinder leakage: Cast iron ring seal allows a certain degree of internal leakage. The impurities in the synchronous hydraulic cylinder will lead to premature wear of the piston seal, replace the piston seal; If the synchronous hydraulic cylinder is visibly scarred, the synchronous hydraulic cylinder must be replaced. It can be pressurized at one end of the synchronous hydraulic cylinder and opened at the other end of the oil port to observe whether there is obvious internal leakage at the end of the oil port. Most synchronous hydraulic cylinder piston drift may not come from the synchronous hydraulic cylinder, the above method to determine the synchronous hydraulic cylinder without internal leakage is helpful to determine the problem of the hydraulic system related components.

Answers to some questions about synchronous hydraulic cylinder:

What's the use of three oil pipes on the cylinder?
The cylinder usually has an upper and lower oil chamber, one is connected to the upper oil chamber, one is connected to the lower oil chamber, sometimes a hydraulic lock will be added, that is, a hydraulic control check valve to prevent accidents when the oil pipe breaks, so the third pipe should be the control oil pipe of the hydraulic control check valve.

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.