Many products need the Constant Force spring.Yong Sheng clockwork spring is a good choice if you want to find the constant force spring.They have 16 years experience on the constant force spring and more than five thousand peoples choice in the world.It is supplier of Top 500 Companies of the World.This is a good  about customers to talk with the constant force spring .We will try to solve your problem and give you best service .

Many people always confusion on the constant force spring, It is thought a kind of the machines with stainless clockwork spring into the constant force spring.There are many different view with traditional.There are many advantages of the constant force spring:
1.1.keep a stretch power

2.the route was short and as long as the shorter stroke can arrive the desired elasticity than have a long of the spring line .

3.The route was not controlled .

4.It was used in our life more and more.For example,the fan lifting spring ,the lifting spring of the display,Curtain gather spring,door and Stapler/pin gun spring.