Heavy-Duty Rod Seal
This heavy-duty hydraulic rod seal is engineered for high-performance sealing in large-diameter, high-pressure environments. Featuring a PTFE-filled sealing element and a profiled energizer, it ensures reliable performance in systems with wide extrusion gaps, short strokes, and oscillating motion (dithering).
Its ultra-low friction and anti-extrusion properties make it ideal for critical hydraulic applications such as rolling mills, injection molding machines, and hydraulic presses.
Key Benefits
Ultra-low friction for reduced energy loss
Excellent wear resistance for extended service life
Reliable sealing under short-stroke or dither motion
Withstands high pressures up to 400 bar (6,000 psi)
Broad chemical compatibility with hydraulic and synthetic fluids
Available in diameters up to 1600 mm
Easy to install; no twisting during installation
Material Selection Guide
| Material Code | PTFE Compound | Energizer | Key Properties |
|---|---|---|---|
| MT23 | PTFE + Bronze | NBR | General-purpose, low friction |
| MT26 | PTFE + Bronze | FPM | Higher temp resistance, chemical stability |
| MT83 | PTFE + Glass + MoS₂ | NBR | Enhanced wear resistance |
| MT86 | PTFE + Glass + MoS₂ | FPM | Best for high temp and aggressive fluids |
Custom compounds are available upon request.
Applications
This heavy-duty rod seal is ideal for:
Rolling mills
Injection molding machines
Hydraulic presses
Forging presses
Large-bore hydraulic cylinders
Short-stroke or oscillating systems
Design & Installation Notes
Designed for wide extrusion gaps and large rod diameters
Compatible with both metric and inch series
Surface finish and tolerances should meet ISO seal housing standards for optimal performance
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