Federtechnik Kaltbrunn AG is part of the Federtechnik Group with production facility in Kaltbrunn, Switzerland. It has more t ... han 80 years of experience in developing and producing technical springs made of wire and strip steel, combined with the latest laser technology for fine machining – welding and cutting. The Federtechnik Group provides technical support during all development stages all the way to mature series production. One-stop shop for spring technology. read more