ZLJ coal mine underground tunnel drilling rig/tunnel boring machine Introduction

ZLJ SERIES EXPLOSION-PROOF DRILLING MACHINE is developed specially for drilling in tunnel of coal mining based on our spindle type of core drilling rig, it is mainly suitable for drilling with tungsten carbide bit for tunnel construction drilling and underground geotechnical drilling.

It has features of light weight, compact size, good detachability, powered largely etc.

ZLJ coal mine underground tunnel drilling rig/tunnel boring machine Parameter

Item		Unit	Technical Parameter
Item		Unit	ZLJ-250	ZLJ-350	ZLJ-400	ZLJ-650	ZLJ-700
Rated torque	High speed	N·m	250	350	400	650	700
	Medium speed	N·m	150	250	230	380	520
	Low speed	N·m	85	100	130	214	310
Rated speed	High speed	r/min	340	350	340	270	410
	High speed	r/min	340	350	340	270	410
	Medium speed	r/min	192	170	192	151	198
	Low speed	. r/min	112	99	112	88	150
Rated pressure		Mpa	8	8	8	8	8
Max feed force		kN	9	9	9	34	34
Max pulling and lining force		kN	12	12	12	12	12
Drilling angle		°	0~360°	0~360°	0~360°	0~360°	0~360°
Capacity of drum		m	26.3	26.3	26.3	40	40
Diameter of wire rope		Mm	8.8	8.8	8.8	11	11
Drill rod caliber		mm	42	42	42	42	42
Supply water pressure		Mpa	0.6~1.2	0.6~1.2	0.6~1.2	0.6~1.2	0.6-1.2
Supply water pressure		Mpa	0.6~1.2	0.6~1.2	0.6~1.2	0.6~1.2	0.6-1.2
Power		kW	4	5.5	5.5	7.5	7.5
Voltage		V	380/660	380/660	380/660	380/660	380/660
Rated Current		A	8.8/5.3	9/13	15/10	13.4/8.8	17.1/11
Dimension		mm	12356301165	12656501020	12007001230	12001290700
Weight		Kg	440	480	480	630	710