Engineered for demanding hydraulic cylinder applications, this Bronze Filled PTFE Piston Seal Assembly delivers exceptional wear resistance, low friction, and long service life in high-load, high-cycle environments. The bronze filler reinforces the PTFE matrix, dramatically improving load-bearing capacity and dimensional stability compared to virgin PTFE — making it the go-to choice for heavy-duty industrial, agricultural, and mobile hydraulic systems.
Key Benefits
Superior wear resistance — Bronze filler extends seal life under high side-load and high-pressure conditions
Low breakout friction — PTFE base material ensures smooth, stick-slip-free piston movement for precise actuation
Broad chemical compatibility — Resistant to most hydraulic fluids, mineral oils, water-glycol, and phosphate ester fluids
Wide temperature range — Performs reliably from -65°F to +450°F (-54°C to +232°C)
Dimensional stability — Bronze reinforcement minimizes cold flow and extrusion under sustained pressure
Drop-in replacement — Designed to OEM dimensional standards for fast, straightforward installation
Typical Applications
Hydraulic cylinders in industrial presses and machine tools
Agricultural equipment hydraulic lift and steering cylinders
Mobile hydraulic systems (excavators, loaders, cranes)
Pneumatic and low-pressure hydraulic actuators
Specify bore diameter, rod diameter, and operating pressure when ordering to ensure correct seal geometry and groove fit.
