drill holes on coal seam,soft sandstone or shale in coal mine or construction engineering,and can be used manually .

QMZ2/8 Pneumatic Coal Drilling Rig can drill hole manually,or used as air leg coal drilling rig by equipped with FT100 air leg.This rig is drive by compressed air,with planetary gear speed reucing system,large torque,explosion-poof,easily operated and maintain,especially be suitable to work in inflammable,explosive,humid and other bad working condition. It can reduce the labor intensity,improve working condition and increase efficiency.

Performance parameters	Unit	Parameter
Rated pressure	Mpa	0.4	0.5	0.63
Rated rorque	N.M	35	40	45
Rated speed	r/min	460	500	570
Rated power	KW	1.7	2.1	2.7
Air Consumption	m/min	2.8	3.3	3.9
Max torques under load	N.M	40	50	52
Inner-diameter of Air pipe	N.M	42	54	56
Rotation Speed with half load	N.M	46	58	60
Idling speed	r/min	1200	1300	1400
Rotation Speed with half load	r/min	600	650	700
Torques in Rotation Speed with half load	r/min	23	30	35
					Power Class of Noise	dBA	<112
Pressure Class of Noise	<95
Weight	Kg	11
Cubage	mm	360*320*224
Inner-diameter of Air pipe	mm	16
Pressure water washing	Mpa	0.6-1.2
solder the end the six-party size	Mm	19(22)

Pneumatic Drilling Rig