Rubber-Metal Buffers
Heavy-duty vulcanized rubber-to-metal buffer stops designed for kinetic impact deceleration, progressive deceleration curves, and over-travel protection in cranes, rail buffers, and automated machinery.
Types & Configurations of Rubber-Metal Buffers
Cylindrical Flat Buffers
Standard cylindrical rubber body vulcanized to a steel base plate with male stud or female tapped hole.
Conical End Buffers
Progressive deceleration profile reducing peak force impact during high-speed travel.
Parabolic Kinetic Buffers
Parabolic elastomeric shape designed for maximum stroke deflection and gentle deceleration curve.
Waisted Flexible Buffers
Centrally indented rubber section providing low initial resistance followed by rapid stiffness rise.
Dual-Stud Bobbin Buffers
Threaded studs at both ends acting as compressive buffers or tensile limiters.
Key Industrial Applications
Specifications & Technical Details
Rubber-Metal Buffers can be precision-manufactured in custom dimensions, wall thicknesses, cross-sections, and durometers to match your exact application specifications. Below are typical engineering cross-section drawings and technical parameters for reference.
Typical Dimension Drawings & Blueprint Cross-Sections
Technical Specifications
| Parameter | Specification / Options |
|---|---|
| Diameters | 15mm up to 250mm diameter standard range |
| Heights | 10mm up to 200mm stroke height |
| Energy Absorption | 15 Joules up to 12,000 Joules per impact |
| Max Peak Force | Up to 350 kN dynamic deceleration capacity |
| Metal Hardware | Grade 8.8 High-Tensile Steel, Zinc Plated (EN ISO 4042) / Stainless 304 |
| Durometer Hardness | 45A, 55A, 65A, 75A Shore A |
| Operating Temp | -40°C to +90°C |
Material Selection & Properties
We offer specialized compound formulations tailored to chemical media, thermal extremes, static deflection, and dynamic fatigue requirements. The best material depends on your operating environment and required service life.
| Material / Polymer | Key Engineering Properties | Recommended Applications & Considerations |
|---|---|---|
| Natural Rubber + Carbon Steel | Maximum dynamic fatigue life & vibration decoupling | Suspension bushes, engine mounts, heavy cab isolators |
| Nitrile (NBR) + Mild Steel / Brass | Oil & grease immersion resistance with vulcanized bond | Rotary shaft seal inserts, fluid poppets, drive couplings |
| EPDM + Stainless Steel 304/316 | Exceptional weather, ozone, UV & polar solvent resistance | Solar mounting brackets, outdoor dampers, marine mounts |
| Viton® (FKM) + Stainless / Titanium | Resists aggressive fuels, hot oils, acids up to +220°C | Aerospace fuel valve seals, chemical pump impellers |
| Polyurethane (PU) + Steel Sleeves | Extreme load bearing & cut/tear abrasion resistance | Heavy forklift drive wheels, guide rollers, buffer plates |
Important Engineering Guidance
The above properties are general characteristics. Final material selection depends on your specific application, operating conditions, load requirements, media compatibility, and service temperature. Please contact our polymer engineering team for tailored compounding guidance on Rubber-Metal Buffers.
Production Batch Gallery
Actual production batch examples of Rubber-Metal Buffers manufactured for OEM, automotive, railway, and heavy engineering clients. We manufacture standard catalogue sizes as well as bespoke custom geometries from your CAD models or physical samples.
Request an Engineering Quote
Share your required dimensions, polymer grade, or 2D/3D drawings for immediate engineering review and quote.