This article mainly introduces:

Uzbekistan hydraulic cylinder,retractable cylinder manufacturer,retractable cylinder

(Uzbekistan retractable cylinder,produced by Hengyu Hydraulic Cylinder Factory）

retractable cylinder are widely used in Uzbekistan，because of excellent fatigue and impact resistance，no need for deceleration device，long service life.So our company has designed retractable cylinder for customers from Uzbekistan.

Introduction to retractable cylinder:

There are some honeycomb holes in the inner wall of the retractable cylinder, piston or piston rod surface. How is this formed? When we repair the retractable cylinder, we can see that there are some honeycomb holes on the inner wall of the retractable cylinder, the piston or the piston rod surface, which are caused by cavitation. Therefore, the cavitation of the retractable cylinder is targeted to prevent. Is very necessary.

retractable cylinder hydraulic oil selection: The recommended working oil viscosity of the retractable cylinder is 10 ~ 110cSt (1.8 ~ 15E), ISO VG46 hydraulic oil. The normal working oil temperature is 10 ~ 70℃, and the ambient temperature is in the range of -20 ~ 80℃. When the ambient temperature and service temperature are low, the hydraulic oil with lower viscosity can be selected.

retractable cylinder head explanation: low pressure castings, medium and low pressure with HT300 gray iron, medium and high pressure with 35, 45 steel. When the retractable cylinder head itself is the guide sleeve of the piston rod, the retractable cylinder head is best cast iron. At the same time, brass, bronze or other wear-resistant materials should be fused on the guide surface. If the guide sleeve is pressed into the retractable cylinder head, the guide sleeve shall be wear-resistant cast iron, bronze or brass.

The retractable cylinder should be used correctly and maintained regularly. The retractable cylinder should be deflated before use, the buffer regulating valve should be adjusted to a reasonable position, the cleanliness of the oil should be checked regularly, the dust on the retractable cylinder should be cleaned regularly, and attention should be paid to waterproof and fireproof.

Answers to some questions about retractable cylinder:

What is hydraulic cylinder internal leakage and external leakage?
The internal leakage of the hydraulic cylinder refers to the leakage of the piston head seal of the double-acting cylinder, and the leakage occurs inside the cylinder; The external leakage refers to the leakage phenomenon between the cylinder head (or cylinder guide sleeve) and the plunger rod (or piston rod) and the seal between the guide sleeve and the cylinder block, and the oil in the hydraulic cylinder leaks to the outside.

Can the hydraulic oil in the cylinder return to the tank?
Yes, there is a way, for example, first remove the cylinder from the machine, and then connect the two pipes on the cylinder, so that the cylinder piston rod is completely retracted into the cylinder, at this time, the piston is with the bottom, and the rear chamber is almost no oil, and then screw off the joint at the end of the front chamber by the hydraulic station, and put it in an empty bucket. Finally, insert the gas pipe into the oil port of the rear chamber. Open the air source, and then the rod will run out, and you'll drain the hydraulic oil from the end of the rod, which requires a source of air on site.