When the YT32-200 4-column universal hydraulic press was repaired, the replacement of the Y-type polyurethane rubber seal on the master cylinder piston changed the previous method of forcibly disassembling and forcing the hot water to expand the groove. The bamboo sheet loading and unloading sealing ring not only saves the replacement time but also ensures the replacement quality, and solves the problem that the sealing ring is damaged due to improper loading and unloading method.
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