Compression springs made of round wire
* Wire springs with a wire diameter of 0.25 to 6.00 mm
* Linear or progressive load
* Specialty: Tightly-wound compression springs
* 100% inspection on modern automatic testing and assembling machines
* Additional treatment available e.g. plasma-nitride

Compression springs made of section wire
Helical compression springs made of section wire are used when the optimum round-wire design is not possible due to the mounting space conditions. Section wire springs have
* evenly distributed pressure,
* a flat, cylindrical outer spring edge,
* a small outer diameter and
* greater distance between coils compared to round wire springs