Tel: 01535 643733 Fax: 01535 642108
Email: mail@emmottsprings.co.uk
George Emmott (Pawsons) Ltd
Leading the field in springs and specialised pressings
Constant Force Springs
Constant force springs are able to extend through their working range while being maintained in any position by the same force. They are essentially a tightly wound coil of spring steel or stainless steel with the inner end being fitted over a shaft while the outer end is extended. The natural curvature across the material width then produces a constant retraction force. This type of spring can also be used in a motor arrangement where the spring is wound in operation on to a smaller drum. By doing this it is possible to produce a constant torque motor or rewind system which can be used for counterbalancing. Other applications include fast-acting fire dampers in air conditioning ducts and being used to push product forward in point-of-sale devices.
Strip widths up to 150mm
Strip thicknesses from 0.05mm to 1.00mm
Materials: Stainless steel and Spring steel
Design assistance available
Standard parts available
