land leveller hydraulic cylinder Sold to Malaysia

This article mainly introduces:

Malaysia hydraulic cylinder,land leveller hydraulic cylinder manufacturer,land leveller hydraulic cylinder

(Malaysia land leveller hydraulic cylinder,produced by Hengyu Group）

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

Introduction to land leveller hydraulic cylinder:

land leveller hydraulic cylinder piston rod material selection and technical requirements: (I), because there is no special requirements, so use 45 steel as the piston rod material, the design of the piston rod only withstand pressure stress, so no modulation processing; (ii) The coaxial tolerance of the shaft journal and the outer circle of the mounting piston is not greater than 0.01mm, so as to ensure the coaxial degree of the outer circle of the piston rod and the outer circle of the piston, and avoid the stuck phenomenon of the piston and the land leveller hydraulic cylinder, the piston rod and the guide. The vertical tolerance between the end face of the mounting piston and the axis of the piston rod is not more than 0.04mm/100mm to ensure that the piston installation does not produce skew; (iii) The outer circle of the piston rod should pay attention to the roughness; (iv) Because it is operated under low load conditions, surface treatment is omitted.

Under normal circumstances, the land leveller hydraulic cylinder is composed of the rear end cover, body, piston, piston rod and front end cover and other main parts. In order to prevent the working medium from leaking out of the land leveller hydraulic cylinder or from the high pressure chamber to the low pressure chamber, a sealing device (sealing ring) is arranged between the land leveller hydraulic cylinder and the end cover, the piston and the piston rod, the piston and the land leveller hydraulic cylinder, the piston rod and the front end cover. A dustproof device is also provided on the outside of the front end cover. In order to prevent the piston from impacting the end cap when it moves rapidly to the end of the stroke, the end of the land leveller hydraulic cylinder can also be provided with a buffer device. If necessary, the exhaust device should be set in order to exhaust.

land leveller hydraulic cylinder seal leakage causes and countermeasures: a. Loose tie rod nut will cause leakage, tighten the tie rod nut according to the torque requirements of tie rod nut, test no leakage can continue to use. b. Pressure exceeding the limit will also cause leakage. Replace the land leveller hydraulic cylinder seal and re-tighten the tie rod nut to reduce the pressure to the nominal pressure range of the land leveller hydraulic cylinder. c. The land leveller hydraulic cylinder seal is extruded, if the O-ring is obviously extruded at the land leveller hydraulic cylinder seal, replace the land leveller hydraulic cylinder seal.

We can not just consider the price and ignore the quality when we purchase the land leveller hydraulic cylinders. Now some manufacturers produce unqualified products in order to reduce costs, the piston rod is not adjusted, the rod coating is not enough, the land leveller hydraulic cylinder finish can not reach, the guide sleeve should use copper, but instead of ductile iron, although the cost is reduced, the quality of the land leveller hydraulic cylinder is not required.

Answers to some questions about land leveller hydraulic cylinder:

Is there a national standard for the testing of hydraulic cylinders?
Generally speaking, the cylinder test is carried out according to JB/JQ20302 Allowable leakage of cylinder in pre-factory leakage test. GB2879 hydraulic cylinder piston and piston rod dynamic seal groove type, size and tolerance. GB6578 hydraulic cylinder piston rod dust ring groove type, size and tolerance. GB7938 hydraulic cylinder and cylinder nominal pressure series, etc.

Is a hydraulic cylinder and a jack the same thing?
Strictly speaking, no. Although the hydraulic principle is used, and even some of the longer jacks are similar to the cylinder, the internal structure of the two is different. There is a check valve inside the jack. After the top lift, the check valve locks the hydraulic oil circuit, and the hydraulic oil only enters and does not exit after the check valve locks, and can be lowered to complete a reciprocating movement. The cylinder is usually connected to the distribution tube to control the movement, and works with a wide variety of distribution valves and distribution systems according to different needs. The jack only needs a simple check valve.