Jining Bafang Mining Machinery Co.,Ltd is one of the leading 200m crawler water well drilling machine manufacturers and suppliers in China,Website:http://www.bafangjixiechang.com, welcome to buy cheap and low price 150m crawler drilling machine made in China from our factory. CM458(D) Multi-functional Crawler-type Rock Driller Specifications 1. Multi-functional DTH drilling rig 2.Max. drilling diameter is 219mm 3.Max. Drilling depth is 200mMain FeaturesCM458 internal combustion (CM458D electric) crawler-type deep hole drill rig adopts diesel motor (electric motor). Hydraulic oil pump unit offers power to hydraulic motor moving, turn around, propulsion and lifting, and angle orientation of oil cylinder, etc. When drill is working, only the down-hole hammer consumes the compressed air.The Drill is used for water well, geothermic air-conditioner drilling operation and various stonework blast hole operation; the drill can also realize the process such as breast wall drilling with casing following, conduct drilling grouting hole of the hydropower cofferdam, grouting hole for dyke seepage control and grouting hole for base enforcement and anchor hole, etc.Main Technical Parameters of CM458 electric blasthole mining rig Drilling diameter follow-pipe Φ114~Φ219mm down-hole Φ90~Φ200mm Drilling depth following-pipe 40m Down-hole 200m Working air pressure 1.2-2.4MPa Air consumption 11-25 m³/ min The biggest pipe-rod changing length 3m Propulsion power 6000kgf Carriage pitch angle 160° Drill arm swing angle (°) ±45 Moving Speed 11m/min Gradeability 24° Power (Diesel drive or electric drive) internal combustion 70KW (Yuchai Brand, Cummins is optional) electric 30KW Outer size(length*width*height) 7000*2200*2100mm (transportation state) Weight 6500kg Dust removol Wet type(optional)