This article mainly introduces:

El Salvador hydraulic cylinder,Lifting cylinder manufacturer,Lifting cylinder

(El Salvador Lifting cylinder,produced by Hengyu Group）

Lifting cylinder are widely used in El Salvador，because of excellent temperature resistance，no transmission clearance，powerful torque.So our company has designed Lifting cylinder for customers from El Salvador.

Introduction to Lifting cylinder:

When the oil pressure of the Lifting cylinder inlet is too low to reach the specified value, the leakage situation of the relevant oil system should be checked and the leakage should be eliminated; Check the piston and piston rod seal ring for damage, aging, loose and other phenomena; Check whether the hydraulic pump and pressure valve are faulty.

The Lifting cylinder should be vented: when the Lifting cylinder is installed or parked for a long time to work again, the air will penetrate into the Lifting cylinder and the pipeline system. In order to prevent the abnormal phenomenon of crawling, noise and heating of the actuator, the air in the Lifting cylinder and the system should be discharged. In order to facilitate the removal of air deposited in the Lifting cylinder, the oil is best entered and discharged from the highest point of the Lifting cylinder. Lifting cylinders that require higher motion stability are often equipped with exhaust plugs at both ends. Before working, unscrew the exhaust plug to make the piston go back and forth several times without load in the whole stroke, and the air can be discharged through the exhaust plug. After the air is drained, tighten the exhaust plug before working.

The assembly work of the Lifting cylinder has a great impact on the quality of the Lifting cylinder: each part must be carefully cleaned before assembly; To correctly install the sealing device everywhere: when installing the sealing ring, pay attention to its installation direction to avoid oil leakage due to installation, and its lip should be equipped with a pressure oil chamber. In addition, because it is a YX-shaped sealing ring, it is necessary to pay attention to distinguish between shaft and hole use, do not install wrong; Because the sealing device is matched with the sliding surface, an appropriate amount of hydraulic oil should be applied during assembly; The special wrench should be used when the threaded coupling is tightened, and the torque should meet the standard requirements; After the piston and piston rod are assembled, it is necessary to measure whether the coaxiality and straightness on the full length are out of whack. After assembly, there should be no blocking sensation and uneven resistance when the piston assembly moves.

When the long-stroke Lifting cylinder rotates horizontally, the piston rod bends due to its own weight, causing the guide sleeve and piston to produce biased load, resulting in Lifting cylinder head seal damage, oil leakage, and piston sleep in the Lifting cylinder. The following measures can be taken: increase the piston plan to adjust the piston outer circle and process it into a convex drum, so that the piston can self-position, improve the force situation, and reduce and avoid pulling the Lifting cylinder; The piston and the piston rod are connected with a spherical joint.

Answers to some questions about Lifting cylinder:

Loader arm fell badly, how to know which oil cylinder is leaking?
No matter which cylinder leakage the arm will drop, it is best to replace the oil seal, even if one cylinder is good, it will not last long, and it will drop the arm, so the two cylinders should be replaced at once.

How big is the pump and motor for 20 tons of hydraulic cylinder?
According to the working pressure of 25 mpa estimate, the cylinder should use 100mm bore, 63mm piston rod, stroke 40mm. According to 30 reciprocating calculation, the flow rate is about 25 liters/minute. The motor power is 11 kW, want to be cheap, use 25SCY14-1B oil pump can be.