1. Loading capacity: the maximum load is 300N, the minimum load unit is 0.01N, the accuracy is ±1%, and each weight combination satisfies any loading requirement between 0.01 and 300N;
2, loading force arm: 216mm;
3. The static radial runout of the force point is ≯0.02mm;
4. The dynamic radial runout of the force point is <0.05mm;
5. Rotating speed: freely set between ≤ rpm and rpm under loading conditions to meet the requirements of different tests. The set speed is constant and fluctuates ±0.5%;
7. The temperature gradient of the test part is not more than 15 °C.
8, the average tropical length: ≥ 5mm;
9. Thermocouple: K-type galvanic couple and its matching high-precision compensation wire, or platinum-iridium galvanic couple and matching high-precision compensation wire;
10, the maximum number of counts: 109;
11. Relative error of bending distance: ±1%;
12, with safe and reliable power off and motor overheat protection;
13. Real-time monitoring of test information: It is necessary to ensure that the high temperature furnace in operation is automatically stopped and an alarm is issued after the sample is broken, and the information on the breakage is prevented from being dropped.