Ts-pit series plastic pendulum impact testing machine is a testing instrument for testing the impact resistance of non-metallic materials such as plastics, nylon, rubber, wood, glass fiber reinforced plastics, composite plastic pipes, electrical insulation materials and other non-metallic materials in low or normal temperature environment under dynamic load. According to the display mode, the machine can be divided into two modes: liquid crystal and microcomputer. This machine is easy to operate. It can automatically take out the pendulum, open the cover automatically, keep the temperature and time automatically, impact automatically, brake automatically, and record the experimental data automatically. It can meet the environmental impact test from room temperature to - 70 ℃. It can be used for both simple beam test and cantilever beam test. The bearing is convenient to adjust and replace, and has strong applicability. It is an indispensable testing instrument for hard plastic manufacturers, plastic pipe manufacturers, quality inspection units and scientific research institutes.