This article mainly introduces:

Tunisia hydraulic cylinder,series synchronous cylinder manufacturer,series synchronous cylinder

(Tunisia series synchronous cylinder,produced by Hebei Hengyu company）

series synchronous cylinder are widely used in Tunisia，because of excellent temperature resistance，no transmission clearance，powerful torque.So our company has designed series synchronous cylinder for customers from Tunisia.

Introduction to series synchronous cylinder:

How the cavitation of the series synchronous 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 series synchronous cylinder, resulting in corrosive damage to the parts.

When the piston speed of the series synchronous cylinder is high, the steel ball of the check valve flows with the oil flow, so that the valve hole is blocked, and the series synchronous cylinder moves irregularly. Elimination method: Replace the steel ball with a cone valve or spool with a guide shoulder.

How to determine the working pressure of the series synchronous cylinder: The pressure depends on the load size (i.e., F) and the type of equipment. The limitations of assembly space, economic conditions and component availability of the actuator should also be considered. In the case of a certain load, it is necessary to increase the structural size of the actuator if the working pressure is low, for some equipment, the size may be limited, and it is not economical from the point of view of material consumption; On the contrary, if the pressure selection is too high, the material, sealing and manufacturing accuracy of the pump, series synchronous cylinder, valve and other components are also required to be high, which will inevitably increase the cost of equipment. In general, for equipment with a fixed size that is not too limited, the pressure can be selected lower, and the walking machinery should be selected higher.

Causes and countermeasures of oil series synchronous cylinder leakage: Cast iron ring seal allows a certain degree of internal leakage. The impurities in the series synchronous cylinder will lead to premature wear of the piston seal, replace the piston seal; If the series synchronous cylinder is visibly scarred, the series synchronous cylinder must be replaced. It can be pressurized at one end of the series synchronous cylinder and opened at the other end of the oil port to observe whether there is obvious internal leakage at the end of the oil port. Most series synchronous cylinder piston drift may not come from the series synchronous cylinder, the above method to determine the series synchronous cylinder without internal leakage is helpful to determine the problem of the hydraulic system related components.

Answers to some questions about series synchronous cylinder:

How to design the guide sleeve of cylinder diameter 400?
The purpose of the guide sleeve is to guide and seal. Therefore, it is necessary to look at the speed of the piston rod, working pressure and radial force. High speed, medium pressure, no (or very little) radial force, with a Steseal. Low speed and heavy load, medium radial force, combined seal. High speed and heavy load, large radial force, sealed with DU sleeve + copper ring + combination. The combination seal must have a lubricating oil passage, and a seal must be added to the outside of the oil passage.

How to judge the failure of forklift hydraulic cylinder?
The common faults of the hydraulic cylinder of forklift truck are mainly crawling, insufficient thrust, working speed decline or even stop. Generally, crawling occurs at low speed. The main reason is that the air stored in the cylinder is not cleared. In addition, excessive or uneven mechanical friction can also cause crawling. Such as the piston and the piston rod different heart, the piston rod full length or local bending, the cylinder hole straightness is poor, the cylinder is drum shaped or has a large taper, the cylinder thin finish decline or produce hair, the cylinder installation accuracy is out of whack, the piston rod nuts at both ends of the screw too tight to make its concentricity is poor, the oil seal screw too tight friction is too large, will cause crawling.