Constant Force Spring

Constant Force Spring

Constant Load Springs can be found in fire dampers and electric motor and also used to counterbalance items, such as windows (known in the window industry as coil balance springs), doors, display racks and trays counterbalances, door closers, cable retractors, hose retrievers, tool head returns, cabinet & furniture components, gym equipment, hairdryers, toys, electric motors, appliances, space vehicles, and other long-motion functions.

It can also be used as a return or retracting mechanism and the constant force spring will provide a smooth, even, uniform load through its entire length or travel (deflection). Motor springs are used for cable retraction, power generation etc. Power springs are used for retracting applications such as seat belt webbing, tape measures and dog leads, connectors, air conditioners, seat recliner, window regulator mechanisms etc.

Travel (extension, deflection) is limited only by the length of material in the spring. The Load is a function of material width, thickness and coil diameter.

This type of springs is manufactured by Stainless Steel and Carbon Steel raw materials. This spring type derives its name from its ability to extend through its full working length while being maintained in any position by the same force. Constant load springs are available in a wide variety of sizes and the recent introduction of a purpose built plant ensures the price competitiveness of the smallest production run.

Our design engineers work closely with our customers to develop constant load spring solutions for individual and sometimes unique applications.