Feature
Compression coil spring is made of circular (spiral) or spheral wires, and depending on the material and the application conditions, it is hot or cold formed. Compression coil spring absorbs axial force or sometimes torque. It is easy to manufacture, reliable, and available for various applications. And it has fixed spring constant and its performance can be correctly forecast. Further, it is possible to change the features by modifying the sizes.
For mobile phone battery locking, OA like facsimile and photocopier, measuring instruments, and valves of internal combustion engines....