A compression spring is a type of spring, made of an elastic wire or other material with compression properties. The main characteristics of compression springs are as follows:

1. high elasticity: compression springs have a high degree of elasticity, can be compressed by an external force to quickly restore the original state, so can be used in a variety of mechanical equipment that requires restoring force.

2. high load capacity: compression springs have a high load capacity, can withstand greater compression force, to ensure the normal operation of mechanical equipment.

3. long life: compression springs are reasonably designed and manufactured to ensure a long service life and high stability and reliability in mechanical equipment.

4. compact size: the structure of the compression spring is simple, compact size, can adapt to a variety of narrow space installation needs, saving space.

5. low manufacturing costs: the manufacturing process of compression springs is relatively simple, low-cost materials, so the manufacturing cost is low, can be used in a large number of various mechanical equipment.

6. High reliability: compression springs have high reliability after strict quality control and testing, basically no breakage or failure, to ensure the normal operation of the equipment.

7. Wide range of applications: compression springs have a wide range of applications in machinery manufacturing, automotive manufacturing, aerospace and other fields, which can meet the needs of different areas for springs.

In general, compression springs have high elasticity, strong load capacity, long life, compact size, low manufacturing cost, high reliability and a wide range of applications, etc., is a kind of important mechanical parts, for the normal operation of machinery and equipment has an important role.