This article mainly introduces:

Kazakhstan hydraulic cylinder,retractable cylinder manufacturer,retractable cylinder

(Kazakhstan retractable cylinder,produced by Hengyu Hydraulic Co., Ltd）

retractable cylinder are widely used in Kazakhstan，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 Kazakhstan.

Introduction to retractable cylinder:

If the retractable cylinder slips or crawls, please check whether there is astringency inside the retractable cylinder, because the internal parts of the retractable cylinder are improperly assembled, the parts are deformed, worn or the shape and position tolerance is excessive, the action resistance is too large, so that the piston speed of the retractable cylinder changes with the different stroke position, and the slip or crawl occurs. Most of the reasons are due to poor assembly quality of parts, surface scars or sintered iron filings, so that the resistance increases, the speed decreases. For example, the piston is different from the piston rod or the piston rod is bent, the retractable cylinder or the piston rod is offset from the mounting position of the guide rail, and the sealing ring is too tight or too loose. The solution is to repair or adjust, replace damaged parts and remove iron filings.

At the rated pressure, the thrust of the retractable cylinder is determined by what factors: at the rated pressure of the oil pump, the work done by the retractable cylinder is related to the diameter of the retractable cylinder, but not to the stroke of the retractable cylinder. Moreover, the larger the retractable cylinder diameter, the larger the area, and the greater the pressure obtained. To this point, we should have a correct understanding and clear understanding, so as to avoid problems in the use of the retractable cylinder.

When using the retractable cylinder product, be sure to operate safely in accordance with the specification documents provided by the manufacturer, and pay attention to protecting the retractable cylinder block. If the retractable cylinder block is damaged, it will cause adverse consequences: ① The material debris extruded from the scratch groove will be embedded in the seal, which may cause new scratch area marks while damaging the working parts of the seal during operation. ② Deterioration of the surface roughness of the inner wall of the retractable cylinder, increase friction, easy to produce crawling phenomenon. ③ Increase the internal leakage of the retractable cylinder, so that the working efficiency of the retractable cylinder is reduced.

How the cavitation of the retractable cylinder is formed: With the gradual rise of pressure, the gas in the oil will become bubbles, when the pressure rises to a certain limit value, these bubbles will break under the action of high pressure, so that the high temperature and high pressure gas will quickly act on the surface of the parts, resulting in cavitation of the retractable cylinder, resulting in corrosive damage to the parts.

Answers to some questions about retractable cylinder:

What valve is used to control cylinder expansion?
Mainly use reversing valve, but the details of the control need hydraulic control valve, hydraulic control valve can be divided into direction control valve, pressure control valve, flow control valve. The valve controls the expansion of the cylinder is the direction control valve, that is, the reversing valve. What is the meaning of two-position three-way and three-position four-way of the reversing valve? Usually according to the different working positions that can stay after the spool is moved, it can be divided into: two-position valves, three-position valves and multi-position valves. According to the number of different slide valve channels can be divided into: two-way valve, three-way valve, four-way valve, five-way valve and multi-way valve. The name of the reversing valve is called the multi-position and multi-pass reversing valve according to its working position and the number of channels.

When the cylinder is tested, why can't the pressure be maintained with the balance valve?
Because the oil into the oil chamber through the hydraulic lock on the control oil circuit through the other side of the spool, the original valve is designed in this way. It locks the circuit after the oil supply circuit loses pressure, on the contrary, if you keep supplying pressure, it is always in the state of opening the other side of the one-way spool. So this valve can't be used in the test.