Sollroc DHD340 Down The Hole DTH Drill Hammer For Borehole

DHD340 Down The Hole DTH Drill Hammer For Borehole Specification: Shank: DHD340 Length(less bit): 1030mm External diameter: 99mm Top sub thread: API 2 3/8"REG Weight(less bit): 39kg Hole range: 110mm-135mm Working pressure: 1.0-2. 5Mpa Impact rate at 1.4Mpa: 27Hz Recommended rotation speed (r/min): 25-40 Air consumption 1.0Mpa (m³/min): 6 Air consumption 1.8Mpa (m³/min): 10 Air consumption 2.4Mpa (m³/min): 15 Advantages: 1.Precision machining using high quality materials ensures little breakdown and stable performance for a long time. 2.The adjustment of the plug in the hammer allows the air consumption to be controlled and the slime discharges smoothly done by maintaining the speed of air discharge in the hammer. 3.It has a built in anti return valve that can be used underwater.