Hangzhou Bright Rubber Plastic Product Co., Ltd. is one of the leading manufacturers and suppliers of Rubber Coil Spring Buffer With High Quality in China. If you're going to buy Rubber Coil Spring Buffer With High Quality made in China, welcome to get more information from our factory. We also accept customized orders.
The Rubber Coil Spring Buffer is an auxiliary damping device installed in the gap of a vehicle's coil spring. Manufactured using high-quality natural/synthetic rubber (NR, PU, EPDM) via high-temperature compression molding (vulcanization), it effectively absorbs road shocks, limits excessive spring compression, improves ride comfort, and enhances load stability.
Rubber Coil Spring Buffer is made of rubber material, stable and durable, wear-resistant, heat-resistant and cold-resistant, strong toughness and elasticity, no cracking for long-term use, the spring shock absorber buffer can withstand the harshest driving conditions, ensuring reliable and long-lasting performance.
The design of Rubber Coil Spring Buffer improves the performance of the shock absorber and effectively solves the weakness of the spring under heavy loads in order to provide better driving stability and comfort, giving you a more enjoyable and safer ride.
Rubber Coil Spring Buffer With High Quality
Key Functions
Progressive Damping – Provides linearly increasing support during mid-to-late spring compression, preventing suspension bottoming out.
Noise & Vibration Reduction – The rubber's molecular structure converts vibration energy into heat, reducing metal spring resonance and friction noise.
Suspension Protection – Minimizes direct metal-to-metal impact, extending spring and shock absorber seal life.
Slight Ride Height Increase – Raises vehicle ground clearance by approx. 5–15mm (depending on hardness); ideal for heavy loads or mild lift applications.
Rubber Coil Spring Buffer With High Quality
Key Specifications
| Parameter | Typical Range | Factory Capability |
|---|---|---|
| Material | NR / PU / EPDM / Blends | Oil/low-temp/ozone resistant options |
| Hardness (Shore A) | 50 – 85 | ±5 Shore A precision control |
| Operating Temperature | -40°C to +120°C | Thermal cycle fatigue tested |
| Compression Set | ≤15% (70°C × 22h) | Imported curing agents for low deformation |
| Dynamic Fatigue Life | >500,000 cycles | In-house dynamic test rig |
| Color | Black / Red / Orange / Custom | In-house color mixing, ΔE<1.0 |
Proven Applications
Passenger cars – Retrofits for VW, GM, Toyota, etc.
Commercial vans & light trucks – Rear axle overload protection
Industrial equipment – Elevator buffers, rail vehicle end stops
Special vehicles – Ambulances, RVs (improved stability)
Why Choose Our Factory?
1. Direct Manufacturer – Lower Cost
12 automatic compression molding presses (160T – 500T)
Monthly capacity: 300,000 pcs
No trading markup → 15–20% lower than market prices
2. Full In-House Quality Control
Incoming – Mooney viscosity & carbon black dispersion tests
In-process – Thermal imaging to monitor vulcanization curves
Finished – 100% compression load test (tolerance ≤±8%)
3. Fast Sampling & Custom Engineering
Mold & sample lead time: 3–5 days (standard non-spring-core molds)
Reverse engineering available based on customer's spring wire diameter, pitch, and coil count
4. Certifications
ISO 9001:2025, IATF 16949 (automotive grade)
Materials meet RoHS, REACH, PAHs environmental standards
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