Vehicle Suspension Spring
We produce sturdy Vehicle suspension spring with wire diameters 8mm–22mm, outer diameters 60mm–200mm and customizable free height 200mm–600mm. Adopting helical compression structure exclusive for suspension systems, shot peening and anti-rust finishing greatly improve the fatigue durability of each Vehicle suspension spring.
Suspension Performance Advantages
Strong load capacity
Alloy spring steel raw materials steadily support static and dynamic vehicle loads.
Excellent shock absorption
Optimized spring stiffness cooperates with suspension assemblies to effectively buffer vibration from uneven road surfaces.
Long fatigue life
Shot peening surface treatment forms surface compressive stress, drastically delaying fatigue crack generation.
Stable operation
Uniform cylindrical coil structure bears force evenly during compression without lateral deflection.
Materials & Processing Technology
Premium alloy spring steel including 60Si2Mn, 55CrSi and 50CrVA is adopted. Surface processes include plastic coating, electrophoresis, shot peening plus anti-rust treatment to enhance corrosion resistance and service life.

Application Fields
Widely used in suspension systems of passenger cars, commercial vehicles, off-road vehicles, agricultural vehicles, engineering vehicles and electric vehicles.
Complete Vehicle Spring Supporting Capacity
Baoding Zhongxin Spring Manufacturing Co., Ltd. provides supporting development for Vehicle suspension spring according to vehicle models or drawings. We master performance indicators and testing standards of automotive suspension elastic parts, and complete customized design matching based on vehicle load parameters. One-stop services covering scheme design, sample trial production and mass delivery are offered for automotive clients. Rich manufacturing cases in vehicle spring industry enable stable and reliable mass supply of automotive elastic components.
Product Parameter Table
|
Parameter Item |
Value / Range |
|
Wire Diameter Range |
8 mm ~ 22 mm |
|
Outer Diameter Range |
60 mm ~ 200 mm |
|
Free Height |
200 mm ~ 600 mm (Customizable) |
|
Spring Type |
Helical Compression Spring (Exclusive for Suspension Systems) |
|
Optional Materials |
Alloy Spring Steel (60Si2Mn / 55CrSi / 50CrVA) |
|
Surface Treatment |
Plastic Coating / Electrophoresis / Shot Peening + Anti-rust Treatment |
|
Customization Mode |
Customized by vehicle models or drawings, supporting suspension system matching development |
|
Product Features |
Large load capacity, good shock absorption, long fatigue life, high stability |
|
Application Scenarios |
Suspension systems of passenger cars, commercial vehicles, off-road vehicles, agricultural vehicles, engineering vehicles, electric vehicles |
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