Application: Portable instrument which can be used in both the laboratory or in situ to determine the rockstrength index of rock samples or cores. The values required for the calculation of the rock  strength index are failure load and distance between the conical points.
Parameters:
1. Max work pressure:100kN
2. Peak value memorized
3. Stroke:100mm
4. Resolution: 0.1kN
5. Max data saving: 120
Features: split type lifting jack; protection cover made by organic glass prevent pollution to environment.