This article mainly introduces:

Bangladesh hydraulic cylinder,stroke adjustable cylinder manufacturer,stroke adjustable cylinder

(Bangladesh stroke adjustable cylinder,produced by Hengyu Hydraulic Co., Ltd）

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

Introduction to stroke adjustable cylinder:

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

When the initial action of the stroke adjustable cylinder is slow, please check the temperature of the hydraulic system, because in the case of low temperature, the viscosity of the hydraulic oil is large and the fluidity is poor, resulting in slow action of the stroke adjustable cylinder. The improvement method is to replace the hydraulic oil with good viscosity temperature performance, and the oil temperature at low temperature can be increased by heater or heating by the machine itself, and the normal working oil temperature of the system should be maintained at about 40 ° C.

After chrome plating of the piston rod of the stroke adjustable 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.

When the stroke adjustable cylinder needs to be stored for a period of time, please follow the recommended methods: The stroke adjustable cylinder should be stored in a dry, clean, non-corrosive gas indoor environment, pay attention to protect the stroke adjustable 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 stroke adjustable cylinder should not be in direct contact with water vapor for a long time. The stroke adjustable cylinder should be placed as vertically as possible with the piston rod facing up, which minimizes corrosion due to possible condensation in the stroke adjustable 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 stroke adjustable cylinder Before working, the stroke adjustable cylinder must be run repeatedly with low pressure (greater than the starting pressure) to discharge the air in the stroke adjustable cylinder before normal work. The oil inlet and outlet and the joint must be tightly fastened with a combination pad to prevent oil leakage.

Answers to some questions about stroke adjustable 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.

The cylinder is moving too fast. I want to slow it down. What can I do?
The hydraulic cylinder is the execution action, and the power source is the hydraulic system. The cylinder speed is too fast, indicating that the system flow is large, the hydraulic system has a hydraulic valve responsible for speed control function, method: 1, by adjusting the speed control valve to reduce the speed; 2, the speed control valve has been adjusted to the lowest, indicating that the hydraulic system design flow is too high, the need to re-configure the hydraulic system according to demand, or the cylinder diameter is changed.