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Basic requirements for installation and renewal of hydraulic cylinder seals

by:ORK      2022-11-13
When installing and disassembling hydraulic cylinder seals, some measures need to be taken, mainly to prevent the hydraulic seals from being scratched or damaged by sharp angles such as threads and undercuts, which will affect their sealing performance. ①At the end of cylinder, piston, piston rod and guide sleeve, etc., use 15°--30°smooth attractive corners. When assembling the seal, the sharp corners of the parts that the seal passes through should be deburred and chamfered. ②The thread that the seal passes through needs to be protected to prevent damage to the lip of the seal. When the hydraulic seal passes through the external thread or undercut, a special sleeve should be placed at the corresponding position, and the outer diameter of the external thread or the diameter of the undercut should be smaller than the inner diameter of the hydraulic seal, etc. ③ When the hydraulic cylinder seal must pass through the inner thread or radial hole, the inner diameter of the inner thread or the diameter of the radial hole should be larger than the outer diameter of the hydraulic seal. ④ It is required that the moving seal should have good sealing, small friction, and good compatibility between the seal and the hydraulic oil. In order to reduce the installation and disassembly resistance of hydraulic seals, lithium soap-based grease or hydraulic working oil should be applied to the corresponding positions where the hydraulic seals must pass, and try to avoid excessive stretching of the hydraulic seals to avoid the occurrence of Plastic deformation, etc. and affect the sealing performance. ⑤ Do not use tools with sharp corners to assemble hydraulic cylinder seals. Company website:
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