This article mainly introduces:

S.Africa hydraulic cylinder,trailer hydraulic cylinder manufacturer,trailer hydraulic cylinder

(S.Africa trailer hydraulic cylinder,produced by Hengyu Group）

trailer hydraulic cylinder are widely used in S.Africa，because of excellent temperature resistance，no transmission clearance，powerful torque.So our company has designed trailer hydraulic cylinder for customers from S.Africa.

Introduction to trailer hydraulic cylinder:

If the trailer hydraulic cylinder slips or crawls, please check whether there is astringency inside the trailer hydraulic cylinder, because the internal parts of the trailer hydraulic 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 trailer hydraulic 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 trailer hydraulic 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.

The piston seal of the trailer hydraulic cylinder is the main element to prevent leakage in the trailer hydraulic cylinder. For the lip seal, it should focus on checking whether the lip edge is bruised and worn, and for the combination seal, it should focus on checking the wear of the sealing surface, and then determine whether the seal can be used. In addition, it is necessary to check whether the static seal between the piston and the piston rod is crushed. The piston rod seal should focus on checking the wear of the seals and supporting rings.

If the trailer hydraulic cylinder operation failure, you can start from these aspects to troubleshoot: (1) the hydraulic system control pressure is too low. The throttling resistance in the control line may be too large, the flow valve is improperly adjusted, the control pressure is inappropriate, and the pressure source is disturbed. At this time, the control pressure source should be checked to ensure that the pressure is adjusted to the specified value of the system; (2) Air enters the hydraulic system. Mainly because there is a leak in the system. At this time, check the liquid level of the hydraulic tank, the seals and fittings on the oil suction side of the hydraulic pump, and whether the oil suction filter is too dirty. If so, the hydraulic oil should be replenished, seals and fittings should be treated, and the coarse filter element should be cleaned or replaced. (3) The initial action of the trailer hydraulic cylinder is slow. In the case of low temperature, the hydraulic oil viscosity is large, poor flow, resulting in slow trailer hydraulic cylinder action. The improvement method is to replace the hydraulic oil with better viscosity and temperature performance If the trailer hydraulic cylinder is weak and cannot push the load, please check the internal leakage problem. The internal leakage of the trailer hydraulic cylinder includes the leakage caused by excessive wear of the trailer hydraulic cylinder block seal, the piston rod and the seal cover seal and the piston seal. The cause of sealing leakage between the piston rod and the seal cover is that the seal is wrinkled, squeezed, torn, worn, aging, deterioration, deformation, etc., and a new seal should be replaced at this time. The main cause of excessive piston seal wear is improper adjustment of the speed control valve, resulting in excessive back pressure and improper seal installation or hydraulic oil contamination. The second is that foreign bodies enter the assembly and the quality of sealing materials is not good. The result is that the action is slow and weak, and in serious cases, it will cause damage to the piston and trailer hydraulic cylinder, and the phenomenon of "pulling the trailer hydraulic cylinder" appears. The treatment method is to adjust the speed control valve, and the necessary operations should be done according to the installation instructions.

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

Answers to some questions about trailer hydraulic cylinder:

Hydraulic cylinder cost calculation method
1, Price cost accounting. Hydraulic cylinder price is composed of cost, profit and tax rate. Among them, the cost includes material cost, processing cost, assembly test fee, factory management fee (including the cost of designing drawings, etc., and the salary of management personnel is shared equally), brand promotion fee, utility and electricity equipment depreciation fee and other expenses. Cost of materials, including cylinder composition cylinder, piston rod, front and rear cover, guide, piston, seal, other accessories, etc. 2, Roughly estimate cylinder price = cylinder weight * parameters, parameters comprehensive consideration of various material costs and processing fees. The general market parameter is 20, the smaller and lighter the cylinder, the larger and heavier the cylinder, the smaller the parameter.

Where is the tension cylinder used in the excavator?
Get off the inside of the frame, behind the guide wheel (steering wheel, guide wheel). Disassemble the track and take the guide wheel out to see the tensioning cylinder (track spring).