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Where are the parts of the hydraulic cylinder that leak? How to deal with it?

2025-04-28

External leakage of hydraulic cylinders is common in the following parts: Leakage at the piston rod seal is the most common, mostly due to seal wear or piston rod surface damage. The seal needs to be replaced and the rod surface needs to be checked. Chrome plating repair is required if necessary. Leakage at the joint surface between the cylinder head and the cylinder barrel is usually caused by aging of the seal ring or loose bolts. The seal should be replaced and the bolts should be tightened according to the torque requirements. Leakage at the oil port connection is mostly caused by loose joints or damaged seals. Re-tightening or replacement of the seal is required. Leakage caused by welding parts or casting defects requires professional welding repair or replacement of parts. Leakage at the buffer regulating valve may be caused by valve core wear or seal failure. The valve seat needs to be ground or the seal needs to be replaced. When dealing with leaks, special tools should be used for disassembly to avoid damaging the sealing mating surface.

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

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

Where are the parts of the hydraulic cylinder that leak? How to deal with it?

Where are the parts of the hydraulic cylinder that leak? How to deal with it?