It is applied to elevator buffer, which is the most important part of elevator accessories. In order to ensure the quality, this kind spring must be with the treatment of shot peening and flaw detection.

The utility model relates to a spring type buffer which belongs to an energy storage type component. When the car or the impact on the high speed will produce a great impact rebound, it is only suitable for rated speed is less than or equal to 1 m/s low speed elevator.