Aramax Engineering offers Extension Springs to Absorb and Store Energy. Aramax Engineering is an ISO 9002 certified company. The Extension Springs to Absorb and Store Energy are designed to absorb and store energy by creating a resistance to a pulling force. The Extension Spring has wide applications from Screen door retractor to a Circuit breaker. All coils are active in these springs, and it is the initial tension that holds the coils together tightly. The extension springs are mainly used by the window industry and the vacuum cleaner industry. A practical application for extension springs are in switches and also the vacuum cleaner brush height control. Various types of ends or hooks can be manufactured so that the extension springs can be attached to the source of the pulling force.