1. Convenient operation: Chinese menu operation, intuitive and clear; 2. Adjustable amplitude: the deformation can be adjusted within the range of 0-500mm 3. Adjustable frequency: the frequency can be adjusted within the range of 0. 1-2Hz, which conforms to the amplitude frequency characteristics. The greater the amplitude, the slower the frequency 4. Times setting: vibration times can be set, 0-9999999 times 5. Preset times: preset the number of tests, and automatically stop the machine when the number of tests reaches 6 Attenuation shutdown: the force value decays to the lower limit, and the shutdown is unqualified 7. Automatic display: display the test force, peak value and test status in real time during the test; 8. Automatic response: during the experiment, the real-time test force, sine curve and times are automatically corresponding; 9. Automatic operation: the fatigue test process can be carried out automatically by inputting test parameters; 10. Automatic storage: the data is automatically stored in the computer, and the tested test can be queried; 11. Shutdown continues: if the first day is not completed, it can be continued the next day, and so on; 12. Complete functions: can test different elastic parts such as compression springs and buffer blocks; 13. Dynamic curve: the dynamic curve can be displayed during the test; 14. Fracture judgment: the machine will stop automatically when the sample is damaged or the force value decreases; 15. Protection function: in addition to overload protection function, there are overcurrent and overvoltage protection functions; 16. Adjustable frequency: the test frequency can be adjusted manually during the test; 17. Curve selection: reciprocating fatigue curve, life fatigue curve display and observation analysis can be selected; 18. Test report: form a statement, which can be printed and stored;