
This precision-machined rod anti-extrusion ring is engineered to prevent the structural extrusion of primary elastomeric seals within high-pressure piston blocks. Manufactured from premium, high-strength technical polymers, its robust anti-extrusion cross-section handles extreme lateral clearances and intense pressure shifts safely. The perfectly flat geometric face ensures uniform support distribution across the dynamic sealing lip.
Designed for direct integration over high-pressure rod seal assemblies, this component eliminates performance-limiting seal shredding and premature circuit leak failures. Its low-friction inner border slides smoothly against hardened shafts, minimizing parasitic drag and heat build-up. This durable backup ring requires zero field maintenance, driving high process reliability and extensive service life.
- High-strength composite body defends against physical deformation and environmental stress cracking on high-speed machinery.
- Smooth parallel geometry profile provides perfectly uniform contact pressure to optimize primary seal element life.
- Premium anti-extrusion composition locks seals firmly into position, eliminating blowouts under high dynamic shock surges.
- Symmetrical design integrates seamlessly into standardized high-pressure fluid power pump rod assemblies.
- Split or solid ring engineering removes the need for specialized assembly tools, accelerating maintenance setups.
- Advanced internal contour blocks airborne contaminants, keeping automation system parameters predictable and safe across loops.
- Light, compact design minimizes physical friction load on flexible line arrays, enhancing overall layout longevity.
| Part No | 29385-225 |
| Product Type | RING,ANTI-EXTRUS.,ROD SEAL |
| Supplier Name | Haskel |
| Application | Anti-extrusion backing and seal stabilization along high-pressure moving shafts |
| Function | Protecting primary rubber rod seals from extrusion into clearance gaps under load |
| Compatibility | Standard high-pressure pump rods, reciprocating booster pistons, and industrial sealing glands |
| Installation Type | Internal gland assembly positioning placed axially behind the primary sealing element |
| Compatible Media | Petroleum-based hydraulic oils, clean compressed air, inert process gases, and water-glycols |
| Material | Premium structural filled PTFE or technical high-modulus polymer compound matrix |
| Operating Condition | Active automated manufacturing lines exposed to continuous cyclic movement and extreme pressure differentials |
| Performance Feature | High resistance to mechanical shear distortion balanced with low sliding friction coefficients |