ZQSJ-90/2.4 Portable Pneumatic Explosion-proof Drilling Machine

ZQSJ-90/2.4 Portable Pneumatic Explosion-proof Drilling Machine:discharging gas and water in coal tunnel and coal-rock tunnel

ZQSJ-90/2.4 Portable Pneumatic Explosion-proof Drilling Machine

ZQSJ-90/2.4 portable pneumatic explosion-proof drilling machine is used in drilling holes for exploring, discharging gas, water; used in drilling holes for exploring, discharging gas and water in coal tunnel and coal-rock tunnel.

With reverse rotated action, it can take out the drill rod and bit easily. It is also the ideal equipment instead of electric drilling machine for water and gas discharging under mine.

Tech. parameters:

No.	Basic parameter		Unit	ZQSJ-90/2.4
1	Working pressure		Mpa	0.63
2	Rated torque		N.m	95
3	Rated rotate speed		r/min	260
4	Max. output power		Kw	2.4
5	Max. loading		N.m	200
6	Power stall torque		N.m	220
7	air consumption with load		m3/min	3.0-4.0
8	No-Load speed (r/min)		r/min	650
9	Noise	Acoustic level (dB(A))	≤110
		Sound power level (dB(A))	≤120
10	Drill Tail Size (mm)		18x18, 26x26
11	Weight (KG)		25
drilling depth range
12	Ø44 Spiral Shank,Ø46 Diameter of hole		25-50M
	Ø69 Spiral Shank,Ø78 Diameter of hole		15-40M
	Ø79 Spiral Shank,Ø91 Diameter of hole		10-30M

ZQSJ-90/2.4 Portable Pneumatic Explosion-proof Drilling Machine