Koei Spring Industry Co., Ltd

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Koei Spring Industry Co., Ltd "Profrssionai manufacturer of custom-made spring"

Among most spring manufacturers do mass production, we are sticking to the creation of quality bespoke spring as a "professional manufacturer of trusted custom springs". Create with our technologies; such as a spring for seismic isolation of the large buildings and a spring for safety valve for power plant and chemical energy equipment. It has received lots of attention from a wide range of industrial fields like the aerospace industry, etc,. The ultimate handmade technology is backed by skilled techniques. Advanced and difficult demands and challenges, please leave it to specialists, KOEI.

Main Products

Cylindrically coiled spring

Cylindrically coiled spring

  • Vehicle
  • Construction equipment
  • Industrial machinery
  • Valve spring
  • Internal combustion equipment

Flat spring

Flat spring

  • Low voltage electrical equipment
  • Chemical mechanical
  • Snap pin

Thick spiral spring

Thick spiral spring

  • Switch
  • Loom
  • Reel code
  • Wind regulator of car

Belleville spring

Belleville spring

  • Machine tool
  • Steel manufacturing machinery
  • Washer
  • Press buffer spring

Volute spring

Volute spring

  • Hatch
  • Buffer springs of steel plant
  • Heavy electrical machinery

NOVA・Flexible coupling

NOVA・Flexible coupling

  • Medical equipment
  • Robot
  • Printing equipment
  • Escalator

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