ISO 7500-1, ASTM E4 , ASTM D-76, DIN5122 , JIS B7721/B7733 , EN 1002-2, BS1610,GB T228 QC-505M2F has large test space and long stroke, the maximum test capacity is 50 kN. Maintenance-free transmission mechanism to reduce machine maintenance problems and in the same time it provides a quiet test environment and high-precision test results. The machine has single-separated electric control box, separate electronic control system to avoid interference with the transmission components to increase test stability and also conducive to the maintenance and updating of electronic systems. Support precision jog wheel can be fine tuning machine movement, with precision positioning and accurate calibration to increase test accuracy. High-speed signal feedback mechanism can reduce the chance of machine overload. The reserved external signal can be connected to an external signal source, increasing machine control mode.