Model NoHQD70Bore diameter60-80mmBore depth15mRock hardnessf = 6-20Working air pressure0.5~0.7MpaAir consumption3.5m3 / minLifting force4200NElectric motor power3kwElectric motor voltage380VDrilling rod length1000mmEngineelectricRecommend matched air compressor3.5m3/min,7bar air compressor
Matched Piston Air Compressor:Model NoW-3.5/7Capacity (m3/min)3.5Work Pressure (Bar)7Cylinder (Dia*Qty)125*3Diesel EngineZS1125Volume of tank (L)220Dimension(L*W*H)1760*900*1250Weight (KG)600 
More specification for DTH Drilling rig:
 

Model No	HQD70	HQD100A
Rock Hardness	F=6-20	F=6-20
Drill Depth	≥15	≥20
Diameter of hole	60-80mm	68-130mm
Rotating speed	90r/min	110r/min
Working Pressure	0.5-0.7Mpa	0.5-0.7Mpa
Air Consumption	≥3.5m3/min	≥13m3/min
Push force	3500N	5000N
Lifting force	4200N	7000N
Power	380V/3Kw	380V/4Kw
Drill rod length	1000mm	1000mm
Matching Air Compressor	W-3.5/7	HG330-8

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