Causes the four-column hydraulic press hydraulic cylinder piston movement reason?
Due to the internal astringency of the hydraulic cylinder, the improper assembly of the parts in the hydraulic cylinder of the four-column hydraulic press, the deformation of the parts, the wear or the tolerance of the shape and position and the excessive resistance of the action will cause the piston slip phenomenon of the hydraulic cylinder. The main reason for slippage or crawling is the quality of parts configuration, the surface has scars or iron chips produced by sintering, which increases the resistance and decreases the speed. For example, the piston and piston rod are not concentric or the piston rod is bent, the cylinder or piston rod of the four-column hydraulic press deviates from the installation position of the guide rail, and the sealing ring is too tight or too loose.