... under dynamic load.The machine is semi-automatic testing machine, easy operation, high efficiency, raise pendulum, impact, put down the pendulum ... and other industries of do a lot impact testing. JB-300B-type impact test machine meet the national standard GB/T3808-2002 ... 55mm12, Dimensions: 1500 mm×850 mm×1340 mm13, the test machine weight: 450Kg14, Power: AC Three-phase 380V ± 10% 50HZ 5A15 ...