This article mainly introduces:

Sweden hydraulic cylinder,hydraulic telescopic cylinder manufacturer,hydraulic telescopic cylinder

(Sweden hydraulic telescopic cylinder,produced by Hengyu Group）

hydraulic telescopic cylinder are widely used in Sweden，because of powerful torque，clever hydraulic energy conversion，simple structure and reliable operation.So our company has designed hydraulic telescopic cylinder for customers from Sweden.

Introduction to hydraulic telescopic cylinder:

The quality of the hydraulic telescopic cylinder can not be ignored in the purchase of the hydraulic telescopic cylinder. The hydraulic telescopic cylinder is the main component of the hydraulic telescopic 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. hydraulic telescopic 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 hydraulic telescopic cylinder is deep hole processing, which has always troubled the processing personnel.

Disassembly hydraulic telescopic cylinder: When disassembly hydraulic telescopic cylinder, strictly prevent damage to the screw thread at the top of the piston rod, the screw thread of the hydraulic telescopic cylinder head and the surface of the piston rod. It should also be noted that the piston cannot be played out from the hydraulic telescopic cylinder.

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

When the hydraulic telescopic cylinder is in use, once the seal and guide support ring are found to be defective, the seal with the same structural form and appropriate material should be replaced according to the structural form of the hydraulic telescopic cylinder seal to be repaired, so as to minimize the thickness of the oil film between the seal and the sealing surface and reduce the leakage of the seal.

Answers to some questions about hydraulic telescopic cylinder:

Why hydraulic cylinder load can not rise?
The hydraulic cylinder does not top up indicates that the pressure of the working chamber of the hydraulic cylinder is insufficient, and the following circumstances can lead to insufficient pressure: 1) The relief valve of the hydraulic system cannot establish pressure, elimination method: check whether the pressure setting screw of the relief valve is screwed to the appropriate position. If it is an electromagnetic relief valve, please check the power-on condition. 2) The hydraulic system pipeline is connected incorrectly, when P and T are connected, this must be checked and excluded; 3) Excessive leakage in the hydraulic cylinder, resulting in (only for double-acting cylinders); 3) No hydraulic oil into the working chamber of the hydraulic cylinder, elimination method: first disassemble the hydraulic pipe connecting the reversing valve and the hydraulic cylinder, and then control the reversing valve, and observe whether there is hydraulic oil flowing out of the reversing valve.

A hydraulic system functions three cylinders to maintain pressure, what components need to be used?
Two way cartridge valve can be selected for control. Two way cartridge valve advantages: 1) flow capacity is large, especially suitable for large flow occasions. 2) The spool has sensitive action and strong anti-clogging ability. 3) Good sealing, small leakage, oil flow through the valve pressure loss is small. 4) Simple structure, easy to standardize.