... 300J 2, pendulum angle: 150 3, the impact speed: 5.4m / s Function and characteristicsThe machine is mainly used for the ... machine is semi-automatic testing machine, easy operation, high efficiency, raise pendulum, impact, put down the pendulum are the electrical control, and can ... :1, the impact energy: 150J, 300J2, pendulum angle: 150 °3, the pendulum shaft center to the impact point distance ...