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How are truck leaf springs manufactured? An analysis of the core component of automotive suspension

May 11,2026

In the suspension systems of heavy-duty trucks and commercial vehicles, the **leaf spring** is the critical core component determining load-carrying capacity. Whether it’s a truck, trailer, pickup, or agricultural vehicle, truck leaf spring They directly determine the vehicle’s payload capacity and driving stability.

As a professional leaf spring manufacturer We specialize in the R&D and manufacturing of leaf springs, suspension springs, and spring steel wire, providing comprehensive automotive suspension solutions to customers worldwide.

A complete production chain from spring steel wire to finished leaf springs

Unlike suppliers that only perform assembly, we start from spring steel wire Quality control is initiated at the raw-material stage, and through processes such as cutting, heat treatment, forming, quenching, and tempering, high strength is achieved. heavy duty leaf spring of manufacturing.

A complete production chain ensures:

  • More stable material properties
  • Higher fatigue life
  • More precise curvature and force distribution
  • Reliable performance for heavy-load road conditions

Customized leaf springs suitable for a wide range of vehicle models

We can provide custom development tailored to the specific requirements of different vehicle models:

  • Truck leaf spring
  • Trailer leaf spring
  • Pickup leaf spring
  • Agricultural vehicle leaf spring

Meets various load ratings and road conditions.

Strict quality inspection system

All suspension spring products are subjected to:

  • Load testing
  • Fatigue testing
  • Hardness testing
  • Material analysis

Ensure every item suspension spring All of them exhibit long-term, stable performance.

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