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ZLJ Crawler-Type Tunnel Drill for Coal Mines

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Product Introduction

This series of tunnel drills is mainly used for drilling operations at various angles in coal mines, including water exploration, gas exploration and release, dust prevention water injection holes, various engineering holes, and geological structures. The rig employs mechanical transmission and hydraulic feed, featuring a simple structure, compact size, and easy operation and maintenance.

This crawler drill is based on the original tunnel drill, equipped with tracks for autonomous movement, allowing easy walking and drilling even in narrow tunnels. The tracks are enhanced with four hydraulic columns on the original legs, providing better stability and higher safety. Additionally, a hydraulic holder is installed to enable automatic drill rod removal, making operation simpler and safer for workers, and drilling more efficient and labor-saving.

Increased power and stronger performance, capable of drilling in various geological layers such as coal seams, mixed coal-rock, and rock formations.

Application Scope

Mines: Suitable for water exploration, coal exploration, gas drainage, and dust-proof water injection at different angles in coal mines. Engineering: Suitable for grouting holes, wiring holes, pile integrity test holes, and core sampling holes in projects like subways, airports, highways, high-speed rail engineering, building reinforcement, and ground surveys.

Host Technical Parameters unit Parameter Value

 

Rated torque

 

High-speed gear

 

N·m 530
Medium-speed gear

 

N·m 1300
Low-speed gear

 

N·m 3250
Rated speed

 

High-speed gear

 

r/min 210
Medium-speed gear

 

r/min 95
Low-speed gear

 

r/min 52
Noise

 

dB(A) ≤90
Drilling inclination angle

 

(°) 0~95
Drill rod diameter

 

mm 42 / 60
Minimum working height mm 1100
Maximum working height mm 1500
Overall dimensions (L×W×H)

 

mm 2450×1050×1650
Mass kg 2000
Propulsion unit rated pressure MPa 10
Propulsion unit rated flow L/min 13
Propulsion stroke mm 400
Propulsion speed mm/min 2000
No-load return speed mm/min 1500
Propulsion force KN 35
Extraction force KN 58
pumping station Rated pressure MPa 18
Rated flow L/min 58
Motor Model YBK3-180M-4
 Rated power KW 22
Rated voltage V 380 / 660 / 1140
Rated current A 35.1 / 20.2 / 11.72
Fuel tank capacity L 150
Walking mechanism Travel mode  Crawler type
Working pressure MPa 15
Working flow L/min 55
Travel speed m/min 25
Gradeability (°) 20

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