Engineered for demanding hydraulic cylinder applications, this Glass Filled PTFE Piston Seal Assembly delivers exceptional performance where standard seals fall short. The glass fiber reinforcement dramatically improves the mechanical strength and wear resistance of PTFE, making it the go-to choice for high-load, high-cycle hydraulic systems in industrial, agricultural, and mobile equipment.
Key Benefits
Superior Wear Resistance – Glass-filled PTFE compound withstands abrasive media and high-cycle operation far longer than virgin PTFE or rubber alternatives
Low Friction, No Stick-Slip – Inherently low coefficient of friction ensures smooth, consistent piston travel and precise actuator control
Chemically Inert – Resistant to hydraulic oils, water-glycol fluids, phosphate esters, and most aggressive media
Wide Temperature Range – Performs reliably from -65°F to +500°F (-54°C to +260°C)
Dimensional Stability – Glass reinforcement minimizes cold flow and extrusion under sustained pressure loads
Drop-In Replacement – Designed to meet or exceed OEM specifications for standard bore sizes
Typical Applications
Hydraulic cylinders (double-acting and single-acting)
Industrial presses and clamping systems
Agricultural and construction equipment
Mobile hydraulics and steering systems
Pneumatic actuators requiring low breakout force
Material Specifications
Seal Material: Glass Filled PTFE (typically 15–25% glass fiber by weight)
Energizer/O-Ring: NBR, FKM, or EPDM (specify when ordering)
Hardness: Shore D 60–65 (glass-filled compound)
Order by bore diameter and rod diameter, or provide your cylinder specifications for a custom fit. Contact us for volume pricing on production quantities.
