This article mainly introduces:

Libya hydraulic cylinder,press machine hydraulic cylinder manufacturer,press machine hydraulic cylinder

(Libya press machine hydraulic cylinder,produced by Hengyu Hydraulic Co., Ltd）

press machine hydraulic cylinder are widely used in Libya，because of no need for deceleration device，long service life，smooth movement.So our company has designed press machine hydraulic cylinder for customers from Libya.

Introduction to press machine hydraulic cylinder:

If the press machine 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 press machine hydraulic cylinder is slow. In the case of low temperature, the hydraulic oil viscosity is large, poor flow, resulting in slow press machine hydraulic cylinder action. The improvement method is to replace the hydraulic oil with better viscosity and temperature performance If the press machine hydraulic cylinder is weak and cannot push the load, please check the internal leakage problem. The internal leakage of the press machine hydraulic cylinder includes the leakage caused by excessive wear of the press machine 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 press machine hydraulic cylinder, and the phenomenon of "pulling the press machine 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.

When using the press machine hydraulic cylinder product, be sure to operate safely in accordance with the specification documents provided by the manufacturer, and pay attention to protecting the press machine hydraulic cylinder block. If the press machine hydraulic 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 press machine hydraulic cylinder, increase friction, easy to produce crawling phenomenon. ③ Increase the internal leakage of the press machine hydraulic cylinder, so that the working efficiency of the press machine hydraulic cylinder is reduced.

When installing the press machine hydraulic cylinder pipe, the pipe should be cleaned after installation, and should not pass through the press machine hydraulic cylinder block, and the by-pass pipe must be installed in front of the oil port of the press machine hydraulic cylinder block. This is important. Otherwise, the foreign body in the pipeline will enter the press machine hydraulic cylinder, and once it enters, it is difficult to exclude it, but it becomes a foreign body transported to the press machine hydraulic cylinder. Moreover, when cleaning, the removal method of foreign bodies entered in the installation pipeline operation should be considered. In addition, the corrosion in the pipe should be pickling and other procedures before the pipe installation, and the rust must be completely removed.

How to repair the press machine hydraulic cylinder body when it is damaged: When the press machine hydraulic cylinder has trace deformation and shallow tensile marks, the press machine hydraulic cylinder is repaired by strong honing process. The heavy honing process can repair press machine hydraulic cylinders up to 2.5 times out of tolerance than the original tolerance. It honed the parts with excessive size or shape error through a powerful honing machine, so that the overall size, shape tolerance and roughness of the press machine hydraulic cylinder can meet the technical requirements.

Answers to some questions about press machine hydraulic cylinder:

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.

Why is there noise in the hydraulic cylinder of the excavator lift arm?
There is no noise of a normal cylinder, check whether the throttle is ringing, or the mechanical part connected with it is ringing, and the mechanical part can be greased. If it can't be ruled out, disconnect the cylinder from the mechanical part and act alone to see what the situation is.