We have developed and mass-produced the Large-Diameter ITW® up to φ22 mm, which is one of the largest in the world for cold-formed spring steel wires.

Eexample of a suspension spring using

Large-Diameter ITW®

(Diameter: φ17.2mm)

Example of a standard suspension spring

using regular ITW®

(Diameter: φ13.1mm)

〈Infomation of Large-Diameter ITW ®〉

・Range of diameter: φ16.1㎜～22.0 ㎜

（Range of regular diameter: Max. φ16.0㎜）

・Tensile strength: Max. 2,000 (N/mm2)

*Please contact us for detailed specification.