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Technical Datas		Unit	ST-30
Drilling depth		M	30 Meters
Drilling method			Air shock, mud drilling, auger
Drilling hole diameter	Air shock drilling	mm	70-90
Drilling hole diameter	Mud drilling	mm	75-90
Drill pipe (diameter × length)	Air shock drilling	mm	Ø60×1500
Drill pipe (diameter × length)	Mud drilling	mm	Ø60×1500
Rated torque		N·M	800-900
Drilling speed range		r/min	0-135
Add pressure		KN	5.5-6
Drilling speed rangeDrilling speed range		KN	12-16
Drilling tool maximum lifting speed		M/s	0.71-0.81
Engine power		Kw	35
Rotating speed		r/min	3600
flow		L/min	0-60
Work pressure		MPa	20
Air compressor unit	model		Fuel injection screw
	Air volume	M³/min	3.8
	Work pressure	MPa	0.8
System oil temperature		℃	15-80

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