(hydraulic telescopic cylinder,produced by Hengyu Hydraulic Co., Ltd）

hydraulic telescopic cylinder are widely used ，because of high work efficiency，excellent fatigue and impact resistance，no need for deceleration device.So our company has designed hydraulic telescopic cylinder for our customers.

Introduction to hydraulic telescopic cylinder:

The hydraulic telescopic cylinder should be avoided for a long time without use, if it is indeed idle for a long time for some reason, it should also be regularly turned on for empty operation, so that its parts can be fully lubricated, so as to avoid rust on the working surface and affect the normal work in the future. (If it cannot be turned on and run, a small amount of lubricating oil can be applied on its outer surface for protection) ' The use of the hydraulic telescopic cylinder should pay attention to: the operation should be as far away from the hydraulic telescopic cylinder as possible, to avoid falling objects, knocking, rubbing the hydraulic telescopic cylinder coating. When cleaning the hydraulic telescopic cylinder, only use soft materials (such as cotton) to wipe, and do not scratch high-hardness materials. Do not use the hydraulic telescopic cylinder when the oil temperature exceeds 70 ° C.

The hydraulic telescopic cylinder should not be mixed with foreign objects during assembly, which will cause scars. Before the total assembly of the hydraulic telescopic cylinder, all parts must be fully removed and cleaned. When the parts are installed with burrs or dirt, foreign objects are easily embedded into the surface of the hydraulic telescopic cylinder wall due to the stiffness and the weight of the parts, causing scars.

In the hydraulic system, sometimes the inner layer of the rubber hose is peeled off, so that the oil circuit is on and off, resulting in irregular hydraulic telescopic cylinder action. Troubleshooting method: Replace the rubber hose.

Because of the slightly complex structure of the buffer hydraulic telescopic cylinder, sometimes there will be problems, such as when the hydraulic telescopic cylinder with the buffer device is started in reverse, the piston often stops temporarily or reverses. Elimination method: The orifice of the check valve is too small, so that the amount of oil entering the buffer chamber is too small, and even a vacuum occurs, so the above fault phenomenon will occur when the buffer plunger leaves the end cover. In this regard, the orifice of the check valve should be increased.

Answers to some questions about hydraulic telescopic cylinder:

What welding rod is used for hydraulic cylinder welding?
There are several reasons for bad welding of hydraulic cylinder: 1. There is hydraulic oil on the welding surface, wipe it with a rag, there will be bubbles in the welding process, and it will not last for a few days. You have to remove it, drain it, wash it off with gasoline and try again. 2. Open the groove before welding, it is not deep enough to use the Angle grinding machine, and can not find the accurate crack position. 3. The material of the cylinder itself is not clear, the welding performance of more than 35 steel is not good, in the factory welding needs to preheat, the welding rod should also be dried and insulated, there is no such condition on the site.

What is the smallest cylinder size?
The smallest shape cylinder I have ever seen is a hydraulic clamping cylinder in the machine tool industry. Outer diameter 24 mm, total length 23 mm, travel 4 mm. Weighs 0.05 kg. Maximum clamping force 3500 Newtons.