Product Introduction Uses compressed air to push the piston reciprocating and Adopts the International popular opening and closing device design, the G20 machine has the characteristics of light weight, big impact power, simple structure, flexible operation, and easy maintenance. The type of G20 has higher efficiency and durability owe to its characteristics of short lentgh and light weight, and it is easy to repair and maintenance. Main Characteristics 1. Used for truncating coal bed and breaking soft ore into pieces in mineral industry. 2. Used for destroying solid or frozen stratum in civil engineering, underground construction and civil air defense construction. 3. Used for breaking old road surface in municipal construction and destroying the former 4. Machinery industry need to produce impact of the movement of occasions, such as the caterpillar tractor, tank unloading pin. 5. Concrete base during the course of equipment installation in industrial and mineral enterprise. Technical Parameters Weight: 20kg Rammer stroke: 165mm Rammer dia: 40mm Impact energy: 60J Impact frequency: 16Hz Air consumption：23L/s Air pipe inner dia：16mm Pick drill：450-600MM