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How to deal with surface damage on the hydraulic cylinder piston rod?

2025-04-28

Damage to the piston rod surface will directly damage the seal and must be handled in time: Minor scratches (depth <0.05mm) can be polished along the axial direction with fine sandpaper (600# or above). Moderate wear or rust (depth 0.05-0.1mm) needs to be repaired by grinding and re-plated with hard chrome, and the thickness of the chrome layer is usually 0.02-0.05mm. Severe damage (depth >0.1mm or large area peeling) should consider replacing the piston rod. The surface roughness after repair should reach Ra0.2-0.4μm, and the straightness error should not exceed 0.1mm/m. Temporary emergency treatment can be wrapped with polytetrafluoroethylene raw tape on the damaged part, but formal repairs must be arranged as soon as possible. During the first operation after repair, the seal should be reciprocated several times at low speed to adapt the sealing lip to the repaired surface.

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Rexroth Piston Pump

Rexroth Piston Motor

Rexroth Axial Piston Pump

Rexroth Axial Piston Motor

Hydraulic Axial Piston Pump

Construction Machinery Piston Pump

Construction Machinery Piston Motor

Industrial Machinery Piston Pump

Agricultural Axial Piston Motor

Harvesting Machinery Piston Pump

Harvester Axial Piston Motor

Bent Axis Piston Motor

Variable Axial Piston Pump

Fixed Displacement Piston Motor

Hydropower Plant Hydraulic Cylinder

Water Conservancy Hydraulic Cylinder

How to deal with surface damage on the hydraulic cylinder piston rod?

How to deal with surface damage on the hydraulic cylinder piston rod?