Impact testing machine, which is used to test the impact resistance of metal materials under dynamic load, is a necessary testing instrument for metallurgical machinery manufacturing and other units, and also an indispensable testing instrument for scientific research units to study new materials. 1. The machine adopts full-automatic control. The lifting pendulum, hanging pendulum, feeding, positioning, impact and temperature regulating equipment are all electrical and mechanical control, equipped with special feeding device for automatic feeding and automatic section positioning of samples. The impact time of the sample from the furnace to the impact is not more than 2 seconds, which meets the requirements of the metal low temperature Charpy impact test method. After impacting the sample, the residual energy can be used to lift the pendulum automatically, so as to prepare for the next test with high efficiency. 2. The main body of the testing machine is divided structure, cantilever hanging pendulum, pendulum body U-shape; 3. The impact knife is installed and fixed with screws, which is simple and convenient to replace.