Western Metal & Primera Technology

Spiral Springs and Constant Force

We accept custom made spiral spring or constant force spring. The material can be spring steel or stainless steel for spiral springs.

Most of the constant force springs are made by SUS301 HV580.

We can also import constant force spring from USA, to offer you high quality product.


NO Wire size Material Major dimension(mm) Finish
1 7 x 0.15mm SUS301 SUS301 Hv580 11 Plain
2 10.0 x 0.6mm Spring steel 15.6 Zinc(yellow)
3 8.0 x 0.5mm SUS301 SUS304 17.9 Plain