Tension springs are wound helical coils that are wrapped tightly together to create tension. Also called extension springs, tension springs provide extended force when the spring is pulled apart from its original length.
The process of making tension springs involves highly-advanced, hot and cold coiling procedures. Tension springs are typically manufactured in dimensions of between 0.1 mm and 26 mm, using tension coiling machines. There are a variety of end types available, such as hooks and coiled loops.
