1, ball falling  drop height: 0 ~ 2000 mm is adjustable 2, ball falling  control mode: dc electromagnetic control 3, ball weight: 112, 198, 225, 198, 225 (according to customer request custom -made) 4,  power supply: 220 v, 50 hz, 2 A 5, dimension: 40 * 50 * 200 ㎝ 6, weight: about 40 ㎏ 7, coaming height: 200 mm, 13 mm thickness of steel plate (standard) products, at the bottom of the effective impact height 2 meters