Heavy Duty Piston Seal
The Heavy Duty Piston Seal is a high-performance, 2-piece piston sealing system designed for double-acting hydraulic cylinders. It consists of a PTFE rectangular slide ring and a rectangular elastomer energizer. This design offers superior physical stability in the groove, preventing seal twisting during high-pressure reciprocating cycles.
Technical Specifications
Operating Pressure: ≤ 60 MPa
Sliding Speed: ≤ 5 m/s
Temperature Range: -45°C to +200°C (depending on elastomer)
Interchangeability: Direct replacement for Mike OMK-S.
Material Compounds
P502P (PTFE + Bronze): Standard for heavy-duty hydraulics; high compressive strength and thermal conductivity.
P508P (PTFE Zinc-free): For zinc-sensitive oils or low-lubricity fluids.
NBR 80 / FKM 80: Precision-engineered energizers for chemical and thermal resistance.
Key Engineering Benefits
Anti-Twist Stability: Rectangular profile prevents rotation in the groove under high pressure.
Zero Stick-Slip: Low friction PTFE surface eliminates crawling at low speeds.
Extrusion Resistance: Supports radial clearances up to 0.8mm (depending on pressure/diameter).
Bi-directional Sealing: Optimized for cylinders with pressure on both sides.
