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Press selection

by：WORLD 2022-12-28

Press selection

When selecting and supplying hydraulic cylinders for presses, attention should be paid to the influence of seals and working oil. When the friction of the seals is large, crawling and vibration are likely to occur. In order to reduce the sliding resistance, seals with low friction force, such as sliding seals, are often used. In addition, the high humidity resistance, low temperature resistance, hardness, elasticity, etc. of the press seal also have a great influence on the work of the hydraulic cylinder. Seals with poor high temperature resistance are easy to stick when working at high temperatures. After the hardness of the seals decreases, the phenomenon of being squeezed into the gap is more serious, which accelerates its damage and destroys the sealing effect. Seals with poor low temperature resistance are at -10 When working below ℃, compression permanent deformation is prone to occur, which also affects the sealing effect; seals with low hardness and poor elasticity are easily squeezed into the sealing gap and damaged. Urethane seals break down easily in aqueous solutions and should be given special attention. The selection of the working oil of the press should be considered from the pump, valve, hydraulic cylinder and the entire hydraulic system, and the working conditions and working temperature of the hydraulic device should be analyzed to select an appropriate working pool. WORLD Press Machine official website www.pressmachine-world.com, please indicate the source for reprinting!

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