Pneumatic roof bolter 1)easy operation, stable action, 2) no anti-torque through prop supporting the body weight.  Pneumatic roof bolter 1.it has larger torque and power2.used for drilling hole in hard coal tunnel and coal-rock tunnel with strong hardness.3.is a smart...

pneumatic Rock Drill for mining 1)Need air coppressor only. 2)Depth0-30m 3)light weight,easy transportation. pneumatic Rock Drill for mining 1. are suitable for drilling on the medium-hard and hard rock.2.be applicable for drilling holes in underground coal mines3.the...

Pneumatic Rock Drill for mining 1)Drilling holes in underground coal mine 2)Light weight 3)Water exploration 4)Grouting  Pneumatic Rock Drill for mining1.Small size, light weight and less air consumption2. The drill rigs are suitable to drill holes for discharging gas,...