Automotive Suspension Spring
We manufacture high-strength automotive suspension spring with wire diameters 8mm–25mm, outer diameters 60mm–200mm and customizable free height 200mm–700mm. High toughness alloy steel material resists road impact and alternating loads, ensuring stable shock absorption performance of every automotive suspension spring.
High-Strength Characteristics
Ultra-high strength
Strict quenching and tempering heat treatment endows the spring with high tensile strength for heavy vehicle loads.
Superior toughness
Material toughness prevents fracture under frequent road impact and cyclic loads.
Outstanding shock absorbing effect
Balanced stiffness delivers stable buffering performance for smooth driving control.
Extended service lifespan
Shot peening multi-layer anti-corrosion finishing effectively prolongs service life under long-term driving conditions.
Materials & Surface Treatment
Optional alloy steel grades: 60Si2Mn, 55CrSi, 50CrVA, SUP9. Surface craft: shot peening strengthening + plastic coating / electrophoresis + anti-rust sealing to achieve multi-layer protection against rust and abrasion.
Application Scenarios
Applicable to suspension systems of sedans, trucks, buses, off-road vehicles, engineering machinery vehicles and special vehicles.
Large-Size Spring Manufacturing Strength
Baoding Zhongxin Spring Manufacturing Co., Ltd. owns complete production lines for heavy-duty springs, capable of manufacturing automotive suspension spring with max wire diameter 25mm and max outer diameter 200mm. Large hot coiling equipment and professional heat treatment production lines guarantee forming quality for oversized high-strength suspension springs. Hot coiling forming, precise quenching and tempering processes balance product strength and toughness perfectly. Mature quality control system satisfies suspension spring demands of light and heavy-duty motor vehicles.
Product Parameter Table
|
Parameter Item |
Value / Range |
|
Wire Diameter Range |
8 mm ~ 25 mm |
|
Outer Diameter Range |
60 mm ~ 200 mm |
|
Free Height |
200 mm ~ 700 mm (Customizable) |
|
Spring Type |
Helical Compression Spring (Exclusive for Motor Vehicle Suspension) |
|
Optional Materials |
Alloy Spring Steel (60Si2Mn / 55CrSi / 50CrVA / SUP9) |
|
Surface Treatment |
Shot Peening Strengthening + Plastic Coating / Electrophoresis + Anti-rust Treatment |
|
Customization Mode |
Customized by vehicle models, load requirements or technical drawings |
|
Product Features |
High strength, high toughness, excellent shock absorption, long service life |
|
Application Scenarios |
Suspension systems of cars, trucks, buses, off-road vehicles, engineering vehicles, special vehicles |
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