Name: Polyurethane Buffer
Brand: Huami
Availability: InStock

What is Polyurethane Buffer?

Polyurethane Buffer (PU Buffer) is an automotive suspension component made from high-quality polyurethane material. Compared to traditional rubber buffers, polyurethane buffers offer superior wear resistance, load capacity, and service life, making them the ideal choice for modern automotive suspension systems.

Huami Polyurethane Buffers use imported polyurethane raw materials and precision injection molding. Our products meet OE matching standards and are widely used in shock absorber buffering and suspension limiting for various vehicle models.

3-5 times more wear-resistant than rubber
Load capacity increased by 50%+
Excellent oil and aging resistance
Operating temperature: -40℃~+80℃
Dimensionally stable, no deformation
Environmentally friendly, ROHS compliant

📋 Specifications

Material	Polyurethane (PU)
Hardness	80-95 Shore A
Density	1.15-1.25 g/cm³
Tensile Strength	≥25 MPa
Tear Strength	≥80 kN/m
Operating Temp	-40℃~+80℃

🏭 Production Capacity

Daily Output	5,000 pcs
Product Models	200+
Color Options	Black/Red/Yellow/Blue
MOQ	100 pcs
Lead Time	Stock/7-15 days
Packaging	Carton/Pallet

✅ Quality Certifications

Quality System	IATF16949
Management	ISO9001
Environmental	ROHS
Fatigue Test	500,000+ cycles
Compression Set	≤15%
Oil Resistance	IRM903 72h

🌟 Advantages of Polyurethane Buffer

💪

Superior Wear Resistance

Polyurethane material is 3-5 times more wear-resistant than rubber, maintaining stable performance under high-frequency impact conditions.

⚡

High Load Capacity

Load capacity is 50% higher than rubber buffers, suitable for heavy-duty vehicles and high-performance cars.

🛡️

Oil & Aging Resistant

Excellent oil resistance, unaffected by engine oil or brake fluid; UV and ozone resistant for long outdoor service life.

📐

Dimensional Stability

Low compression set, maintains stable buffering performance and installation dimensions over long-term use.

🌡️

Wide Temperature Range

Operating range -40℃~+80℃, maintains elasticity in extreme cold and heat without hardening or softening.

🎨

Color Customization

Available in black, red, yellow, blue and other colors to meet different brand and market positioning needs.

🚗 Applications

🔧

Shock Absorber Buffer

Installed at shock absorber base to absorb impact energy and protect the shock

⚙️

Suspension Limiting

Limits suspension travel to prevent metal-to-metal contact and improve comfort

🚙

Performance Vehicles

First choice for performance modified vehicles, providing better road feel

🚛

Commercial Vehicles

For heavy-duty vehicle suspension systems to handle larger loads

📊 Material Comparison: PU vs Rubber

Property	Polyurethane (PU)	Regular Rubber
Wear Resistance	★★★★★ Excellent	★★★☆☆ Average
Load Capacity	★★★★★ High	★★★☆☆ Medium
Oil Resistance	★★★★★ Excellent	★★☆☆☆ Average
Aging Resistance	★★★★★ Excellent	★★★☆☆ Medium
Service Life	5-8 years	2-4 years
Price	Medium-High	Low