For discharging gas, water exploration, grouting and blasting in tunnels. Hole size: 65-90mm, 90-120mm All kinds of rocks

Coal mine underground DTH drill rig

The MKQJ90/25 and MKQJ 120/40 coal mine underground DTH drill rig features light in weight, easily transported, strong torque for anti-jamming, and could drill holes with protecting pipes etc. The drill rigs are suitable to drill holes for discharging gas, water exploration, grouting and blasting in tunnels, and widely used in mining, hydro-power station, railroad, highway and construction engineering etc. With its SAFETY CERTIFICATE OF APPROVAL FOR COAL MINING PRODUCTS, the drill rigs are applicable for drilling holes in underground coal mines.

 

Performance parameters

 

Item	Model
	MKQJ90/25	MKQJ120/40
Hole size	φ65-φ90mm	φ90-φ120mm
Hole depth	down 30m	down 80m
Working medium	All kinds of rocks	All kinds of rocks
Feed stroke at once	1000mm	1000mm
Feed force	0-7800N	0-15600N
Rotary speed	0-90rpm	0-70rpm
Air pressure	0.7MPa	0.7-1.2MPa
Air consumption	12m³/min	12-17m³/min
Total weight (without DHD hammer and bit)	375kg	590kg

Underground Anchor Hole Drill Rig