PTFE Piston Seal with O-Ring Preload, KPOR31, KPOR31, Freudenberg Sealing Technologies (Dichtomatik)

Possible Applications

This dynamic piston sealing profile is primarily integrated into heavy-duty hydraulic cylinders operating within mobile construction machinery, agricultural tractors, and industrial hydraulic presses. It excels in precision positioning actuators for injection molding equipment and machine tool feed cylinders, where minimal breakaway force and stick-slip-free motion are essential for smooth operation. The elastomeric O-ring energizer ensures immediate dynamic sealing performance at zero or low pressure, while the low-friction PTFE sealing face withstands aggressive hydraulic fluids, high sliding speeds, and elevated pressure peaks. Additionally, the seal is well-suited for material handling equipment like scissor lifts and hydraulic crane booms that demand reliable static pressure retention during extended hold cycles under heavy loads.

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