Product Overview — Part 3128303930
The 3128303930 is a precision-manufactured BOMAG Scraper Parts component. The 3128303930 rubber buffer block is a heavy-duty BOMAG scraper part for frame impact absorption applications. This solid rubber block design provides simple, reliable energy absorption without metal components — reducing maintenance requirements compared to bonded rubber-metal assemblies. The solid rubber construction uses a high-durometer compound (typically 60–70 Shore A) that provides sufficient stiffness to resist extrusion under sustained lateral loads while maintaining energy absorption capacity under impact. The block can be replaced without special tooling, typically held in place by mechanical clamping or adhesive bonding. Part 3128303930 is stocked as part of our comprehensive BOMAG scraper parts inventory. For travel limit buffer applications, see companion part 3115 9150 99. For impact buffer applications requiring higher energy absorption, see 26337508.
Technical Specifications
| Property | Value | Standard |
|---|---|---|
| Part Number | 3128303930 | OEM Specification |
| Hardness | 45–70 Shore A (application specific) | ISO 48-4 / ASTM D2240 |
| Tensile Strength | ≥ 16 MPa | ISO 37 / ASTM D412 |
| Elongation at Break | ≥ 300% | ISO 37 / ASTM D412 |
| Compression Set | ≤ 25% (22h/70°C) | ISO 815-1 / ASTM D395 |
| Temperature Range | −40°C to +90°C | Operational limits |
| Ozone Resistance | No cracking 168h | ISO 1431-1 |
| Fire Safety | EN 45545-2 HL2/HL3 available | EN 45545-2:2013 |
| Fatigue Life | > 1,000,000 cycles | Dynamic fatigue protocol |
Applications
BOMAG BW series compactor frame buffers; BOMAG scraper drum travel stops; BOMAG machine impact protection points.
Our technical team can assess suitability for other equipment types. Contact us with the make, model, and serial number for a precise cross-reference confirmation.
Material & Quality Standards
- Base Polymer: Natural Rubber (NR) or NR/SBR blend — excellent resilience and fatigue resistance
- Reinforcing Fillers: High-structure carbon black for controlled stiffness and wear resistance
- Protection Additives: Anti-ozonant wax and chemical antioxidant for extended outdoor service life
- Bonding System: Chemically bonded rubber-to-metal interface exceeding bulk rubber strength
- EN 45545-2 Option: Halogen-free flame retardant meeting smoke toxicity requirements (on request)
Every batch produced under ISO 9001:2015 QMS with full material traceability. Certificate of Conformance and material test reports available upon request.
Installation Guidelines
- Inspect on arrival: Verify part number 3128303930. Check for transit damage — reject any non-conforming component.
- Clean mating surfaces: Remove all rust, old rubber fragments, grease, and paint before installation.
- Align correctly: Follow assembly drawing orientation. Incorrect orientation may cause premature failure.
- Torque fasteners: Use calibrated torque wrench and cross-pattern tightening sequence per OEM specification.
- Post-install check: Inspect for correct seating. Run equipment at low speed to verify no abnormal noise or vibration.