CM458 internal combustion(CM458D electric)crawler-type deep hole drill 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 dyke seepage control and grouting hole for base enforcement and anchor hole,etc.

CM458 Main technical parameters

Drilling diameter	Φ114-Φ219mm(follow-pipe) Φ105-Φ200mm(DTH)
Drilling depth	follow-pipe 40m(Deepest 60m)  (DTH) 40-200m
Moving speed	2km/h
Adapt to rock hardness	ｆ=6—20
Working air pressure	1.2—2.4MPa
Air consumption	11-25m3/min
Maximum Hoisting Power	8000kgf
hoisting speed	17m/min
Gradeability	24°
power	Internanl combustion 70kw      Electric 30KW
Weight	6200kg