Applications: The ramming of foundry sand in an impact way can be used to solidify in the smelting industry, and can also be used to make bricks and concrete in construction projects D9, large working capacity, suitable for tamping work of large casting sand type Specifications: Length: 1180mm Use air pressure: 0.63Mpa air consumption : 0.65l/s Impact frequency: 600hz The use of gas:? 15L/S Piston stroke: 207mm Piston diameter: 32mm Trachea inner diameter: 13mm Hammer head diameter: 54mm Weight: 9kg Includes: 1 x D9 Pneumatic Tamping Machine.