Long extension capibility for constant load CONSTANT FORCE SPRING Feature: Function+Applications Constant force spring is made by winding the steel strip into a coil which exerts a nearly constant returning force to resist uncoiling. Constant force springs offer following advantages: 1. High force output with very small space requirements 2. To exert nearly constant force during entire extension. 3. Short initial pretension, it means that can afford the rated load at short extension. 4. Provides long extension capability They are ideal for a wide variety of applications where constant force is needed, including applications requiring smooth returning and retrieving, counterbalancing applications, and tensioning and loading applications. There are a number of different spring design possibilities for a given application, we strongly suggest you to consult with a Ming-Tai engineer early in the design phase. We will create an optimized solution for your spring demand. Custom designs are available as well. Multiply the Load By multiplying the load, longer life and better load will be obtained in the smaller space High Adjustment Application Cup Holder for Car Interior