This article mainly introduces:

Kenya hydraulic cylinder,retractable cylinder manufacturer,retractable cylinder

(Kenya retractable cylinder,produced by Hebei Hengyu company）

retractable cylinder are widely used in Kenya，because of excellent temperature resistance，no transmission clearance，simple structure and reliable operation.So our company has designed retractable cylinder for customers from Kenya.

Introduction to retractable cylinder:

If the retractable cylinder operation failure, you can start from these aspects to troubleshoot: (1) the hydraulic system control pressure is too low. The throttling resistance in the control line may be too large, the flow valve is improperly adjusted, the control pressure is inappropriate, and the pressure source is disturbed. At this time, the control pressure source should be checked to ensure that the pressure is adjusted to the specified value of the system; (2) Air enters the hydraulic system. Mainly because there is a leak in the system. At this time, check the liquid level of the hydraulic tank, the seals and fittings on the oil suction side of the hydraulic pump, and whether the oil suction filter is too dirty. If so, the hydraulic oil should be replenished, seals and fittings should be treated, and the coarse filter element should be cleaned or replaced. (3) The initial action of the retractable cylinder is slow. In the case of low temperature, the hydraulic oil viscosity is large, poor flow, resulting in slow retractable cylinder action. The improvement method is to replace the hydraulic oil with better viscosity and temperature performance If the retractable cylinder is weak and cannot push the load, please check the internal leakage problem. The internal leakage of the retractable cylinder includes the leakage caused by excessive wear of the retractable cylinder block seal, the piston rod and the seal cover seal and the 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 main cause of excessive piston seal wear is improper adjustment of the speed control valve, resulting in excessive back pressure and improper seal installation or hydraulic oil contamination. The second is that foreign bodies enter the assembly and the quality of sealing materials is not good. The result is that the action is slow and weak, and in serious cases, it will cause damage to the piston and retractable cylinder, and the phenomenon of "pulling the retractable cylinder" appears. The treatment method is to adjust the speed control valve, and the necessary operations should be done according to the installation instructions.

We can not just consider the price and ignore the quality when we purchase the retractable 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 retractable 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 retractable cylinder is not required.

The retractable cylinder can not be used as grounding electrode to avoid electric damage to the piston rod.

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.

Answers to some questions about retractable cylinder:

How many boom cylinders, bucket rod cylinders and bucket cylinders are there in a small single-bucket excavator?
one for bucket, one for forearm, only one piece for a small excavator under the big arm, two pieces for medium and large excavator.

What is the thin cylinder used for?
The principle is no different from ordinary cylinders, that is, the installation space is small, the formation is small, and it is suitable for some special occasions. For example, the space is compact and the place of small travel is used.