Mine Blasting Drilling Equipment

 

The TMZ1250 drilling rig is specifically designed for confined construction environments such as tunnels, culverts, subways, and small foundation pits. Its compact structure adapts to complex working conditions and can meet the drilling needs of various underground engineering projects. Equipped with an impact-type power head, it is suitable for drilling in various strata, including clay, gravel, and moderately weathered rock. When combined with an air compressor and pneumatic down-the-hole hammer, drilling efficiency in hard rock strata can be further improved.

 

The TMZ1250 drilling rig utilizes a power system that meets China's National III emission standards. Its rotary mechanism supports 360° omnidirectional rotation, enabling drilling operations across the entire face, left and right sidewalls, tunnel arches, and vertical holes at multiple angles, providing a wider range of coverage and greater adaptability.

 

The TMZ1250 drilling rig is specially equipped with a jet grouting operation handle, allowing for precise adjustment of the power head speed and lifting speed during jet grouting operations. This makes construction control more convenient and effectively improves jet grouting efficiency and work quality.

 

TMZ1250 Drilling Rig
Engine
DCEC		QSB4.5-C160 III
Rated output at 2200 rpm	KW	119
Electric system	V	24
Fuel tank capacity	L	200
Hydraulic system
Hydraulic pumps
1st circuit operating pressure	Mpa	0-22
2nd circuit operating pressure	Mpa	0-22
3rd circuit operating pressure	Mpa	0-20
Hydr. oil tank capacity	L	400
Crawler base
Crawler type		LG-135
Towing force	kN	65
Crawler speed	km/h	1.4
Ground pressure	N/cm²	6.39
Overall width	mm	1500
Length of crawler units	mm	2450
Ground clearance	mm	300
Drill mast type
Motor reducer/chain
Feed length	mm	2500
Feed force	kN	50
Retraction force	kN	50
Feed rate	m/min	0-10
Retraction rate	m/min	0-10
Fast feed rate	m/min	0-50
Fast retraction rate	m/min	0-50
Hydraulic drifter
Mode of Operation		Rotary/Percussive
Percussion Frequency	Times/min	0-1150/Impact force: approximately 550 Nm
Max. torque at high speed	Nm	5500
Max. torque at low speed	Nm	11000
High rotating speed	r/min	0-134
Low rotating speed	r/min	0-67
Clamp range	mm	60-210
Max. clamp force	KN	212
Dimension	mm	5900*1500*2850
Weight	kg	10000

 

 

 

The TMZ1250 drilling rig supports multiple drilling techniques, offering versatility to meet the needs of various engineering projects.

1. Anchor Bolt Construction: Suitable for anchor bolt drilling in tunnel initial support, slope protection, and foundation pit support.

2. High-Pressure Jet Grouting: Equipped with a dedicated jet grouting operating handle, it allows for precise adjustment of the power head speed and lifting speed, improving the quality and efficiency of jet grouting pile construction.

3. Down-the-Hole Hammer Drilling: When used with an air compressor and pneumatic down-the-hole hammer, it can efficiently complete drilling in hard rock formations, suitable for rock excavation and foundation construction.

4. Grouting Construction: Can be used for curtain grouting, foundation reinforcement, water plugging grouting, and fissure grouting, improving ground stability.

5. Foundation Reinforcement: Suitable for soft ground treatment, foundation reinforcement, and underground structure reinforcement.

6. Rock Drilling: Suitable for drilling in moderately weathered rock and hard rock formations, balancing construction efficiency and drilling quality.

 

 

 

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