Home Solutions

How to determine whether the leakage in the hydraulic cylinder exceeds the standard? What are the detection methods?

2025-04-28

Common methods for determining the amount of internal leakage include: load settlement method - extend the cylinder and load it, measure the amount of retraction of the piston rod within the set time, and calculate the leakage. Flow measurement method - pressurize the rodless chamber of the cylinder, measure the amount of oil flowing out of the rod chamber, and directly obtain the leakage value. Pressure drop method - close one chamber of the cylinder and pressurize it, record the pressure drop value per unit time, and estimate the leakage. In practical applications, when the cylinder shows obvious self-settlement (speed>50mm/min) or abnormal temperature rise when maintaining pressure, it usually indicates that the internal leakage is too large. Different applications have different requirements for leakage. For example, the allowable leakage of engineering machinery cylinders is usually 1-2 orders of magnitude larger than that of machine tool cylinders. If the leakage of precision equipment cylinders exceeds 5mL/min, repairs should be considered.

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

How to determine whether the leakage in the hydraulic cylinder exceeds the standard? What are the detection methods?

How to determine whether the leakage in the hydraulic cylinder exceeds the standard? What are the detection methods?