该设备采用机械幅值可调方式，可对各种压簧、拉簧等弹性件进行定次数、定幅值的反复疲劳寿命试验。

The mechanical amplitude adjustable method can be used to test the repeated fatigue life of various elastic parts, such as pressure spring and spring spring.

   具有断裂计数及预压次数设定功能，从而消除试件的内应力、增加其力学及几何尺寸的稳定性，操作简单，安装方便，长年运行高可靠。

Has fault count and prepressing times setting function, thereby eliminating the internal stress of specimen and increase its mechanical and geometric stability, simple operation, convenient installation, reliable operation for many years.