2015–2019 — Rapid Development of Camless Spring Forming Technology

July 12 2026

Between 2015 and 2019, Yinfeng increased its investment in CNC camless spring forming technology.

Unlike conventional cam-driven spring machines, camless spring machines use multiple independently controlled servo axes.

This machine structure reduces dependence on traditional cams and rocker arms, allowing spring manufacturers to achieve:

  • Faster machine setup

  • More flexible forming movements

  • Easier product changeover

  • Higher forming accuracy

  • More complex spring geometries

  • Greater control over spring arms and end shapes

Yinfeng gradually developed camless spring machines for different wire diameter ranges and spring products, including:

  • Precision springs

  • Automotive springs

  • Agricultural tine springs

  • Heavy-duty torsion springs

  • Double torsion springs

  • Extension springs

  • Custom-shaped wire springs

This technical direction became one of the most important parts of Yinfeng’s product development.

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