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tension cylinder Sold to Holland

Release time:2023-11-12 15:31:09 Hits: Current position: Home > News

This article mainly introduces:

Holland hydraulic cylinder,tension cylinder manufacturer,tension cylinder

Holland tension cylinder

(Holland tension cylinder,produced by Hebei Hengyu company)

tension cylinder are widely used in Holland,because of clever hydraulic energy conversion,simple structure and reliable operation,excellent temperature resistance.So our company has designed tension cylinder for customers from Holland.

Introduction to tension cylinder:

tension cylinder abnormal sound, hysteresis phenomenon cause and elimination method: the piston rod is extended with abnormal sound and hysteresis, if the tension cylinder is placed for a period of time, the tension cylinder may enter the air, and the movement can be normal after dozens of repeated movements. If it still cannot be eliminated, check whether the load is aligned with the axis of the piston rod; Retracted piston rod installation helps to align the load with the piston rod. If the flow is unstable, it will also lead to abnormal movement of the piston rod. Check the relevant components of the hydraulic system.

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

If the tension 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 tension cylinder is slow. In the case of low temperature, the hydraulic oil viscosity is large, poor flow, resulting in slow tension cylinder action. The improvement method is to replace the hydraulic oil with better viscosity and temperature performance If the tension cylinder is weak and cannot push the load, please check the internal leakage problem. The internal leakage of the tension cylinder includes the leakage caused by excessive wear of the tension 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 tension cylinder, and the phenomenon of "pulling the tension cylinder" appears. The treatment method is to adjust the speed control valve, and the necessary operations should be done according to the installation instructions.

tension cylinder diameter, rod diameter, stroke determination: Choose national standards or other standards tension cylinder, avoid the selection of non-standard size, otherwise the difficulty of processing and manufacturing costs will be increased. The length of the tension cylinder guide is determined by the length of the stroke. Check the strength of tension cylinder, piston rod, screw, etc. according to the working pressure or load. At the same time, working pressure, ambient temperature, working medium and running speed are also the key to selecting seals.

Answers to some questions about tension cylinder:

How big is the pump and motor for 20 tons of hydraulic cylinder?
According to the working pressure of 25 mpa estimate, the cylinder should use 100mm bore, 63mm piston rod, stroke 40mm. According to 30 reciprocating calculation, the flow rate is about 25 liters/minute. The motor power is 11 kW, want to be cheap, use 25SCY14-1B oil pump can be.

How long can a hydraulic cylinder work continuously?
If the maintenance is good, the service life can be extended a lot. The life of the cylinder is related to the structure of the cylinder, working pressure, stress state, hydraulic oil cleanliness, oil temperature control, maintenance and preventive measures. For example, the cylinder structure, the inner wall of the cylinder has quilting, rolling, chrome plating and other methods, the sealing parts have polyurethane rings, glay rings, metal sealing rings, etc., different combinations, the life difference is dozens of times. Metallurgical system is a typical cylinder application, in 24 hours of work, a year or more can not be shut down, in the middle of continuous work.

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