The reason for the low running speed of the hydraulic cylinder of the four-column press

What is the reason for the low speed of the hydraulic cylinder of the four-column press during operation?

Today, I will take you to analyze that the hydraulic cylinder has low-speed crawling caused by mixing gas.

In this case, the purpose of exhausting can be achieved by repeatedly running the hydraulic cylinder. If necessary, an exhausting device is provided in the pipeline or the two chambers of the hydraulic cylinder, and the exhausting is carried out when the hydraulic system of the four-column press is working. Low-speed crawling caused by improper hydraulic cylinder design clearance. The sliding fit clearance between the piston inside the hydraulic cylinder and the cylinder body, the piston rod and the guide sleeve can be properly designed. Low-speed crawling caused by uneven friction of the guiding elements in the hydraulic cylinder. It is recommended to use metal as a guide support. If a non-metallic support ring is used, it is recommended to choose a non-metallic support ring with good dimensional stability in the oil, especially the thermal expansion coefficient should be small, and the thickness of the support ring must be strictly controlled. uniformity of thickness. For the low-speed crawling of the hydraulic cylinder of the four-column press caused by the material problem of the seal, it is recommended that the combined sealing ring with PTFE as the seal should be used preferentially when the working conditions allow. In the process of manufacturing the hydraulic cylinder of the four-column press, the machining accuracy of the inner wall of the cylinder and the surface of the piston rod should be strictly controlled, especially the geometric accuracy, especially the straightness is the key. This article is from the official website of the manufacturer WORLD Press Machine www.pressmachine-world.com, please indicate the source for reprinting!