deep hole drill jumbo for subterranean coal extraction

The deep hole drill jumbo for coal mines features a high degree of automation, flexible operation, and reliable safety. It is suitable for applications such as coal mine roadway excavation and rock bolt support. Capable of drilling large-diameter and deep holes, it greatly improves work efficiency and reduces labor intensity, making it an essential piece of equipment for safe and efficient modern coal mine production.

Description

Deep Hole Drill Jumbo for Coal Mines

The deep hole drill jumbo specially designed for coal mines is a crawler-type equipment that integrates advanced drilling technology, tailored for a variety of underground drilling tasks such as hydrogeological exploration, gas detection, fault and roof collapse investigation, and water injection. The machine offers 180 degree horizontal rotation and 770mm vertical lifting capability, with the drill boom adjustable from -45 degree to +75 degree, providing flexible multi-angle and multi-directional drilling performance. This drill jumbo is especially suitable for high-density borehole layouts on coal mine faces, soft rock, and coal seams to meet requirements such as outburst prevention, and can also be widely used in other underground engineering projects.

Features of the Deep Hole Drill Jumbo

  • Highly safe operation, significantly reducing the physical workload of operators, and adaptable to different section environments such as horizontal and inclined roadways;
  • Fully hydraulic drive, compact structure, flexible operation, and crawler travel for rapid site transfer, enhancing on-site adaptability;
  • Powerful rotation head with long feed stroke, enabling fast drilling and significantly improving overall construction efficiency;
  • Integrated hydraulic system with rapid feed and auxiliary drill rod handling devices, greatly shortening drill rod replacement time, enhancing operational convenience, and reducing labor intensity;
  • Equipped with a variable hydraulic system, achieving high rotation speed under no load and automatically increasing torque under load, ensuring smooth and efficient drilling.

Applications

This deep hole drill jumbo is widely used for anti-outburst drilling, water hazard investigation, gas monitoring, fault exploration, roof collapse management, and water injection operations in underground coal mine faces. It can efficiently operate in coal seams, soft rock, and complex geological environments. At the same time, it is also suitable for other fields requiring deep hole drilling such as tunnels, hydropower, and geological exploration, meeting the diversified drilling needs of various projects.

Technical Parameters
deep hole drill jumbo for subterranean coal extraction
Item Unit PMS1-4500-55
Complete Machine Number of Drill Booms 1
Working Range (Width x Height) mm 2000x2100
Minimum Turning Radius (in operation) mm 1800
Stabilized Working Width (in operation) mm 2700
Dimensions in Operation (L x W x H) mm 2800x900x1950
Drilling Diameter mm Φ65 to Φ133
Drilling Depth m 200
Flushing Water Pressure MPa 0.6-1.2
Suitable Drill Rod mm Φ50 to Φ73
Weight kg Main Unit 4500
Ground Clearance mm 200
Rotary Mechanism Type/Feature N.m Hydraulic Rotary
Rated Working Pressure MPa 20
Rated Working Flow L/min 80
Rated Torque N.m 4000
Rated Rotation Speed r/min 60
Maximum Working Pressure MPa 22
Maximum Torque N.m 4500
Propulsion Unit Type/Feature Guide Rail Hydraulic Cylinder Propulsion
Working Pressure MPa 18
Propulsion Stroke mm 600/800
Propulsion Force kN 125
Pull-out Force kN 155
Pitch Angle degree ±90 degree
Horizontal Swing Angle degree 180 degree
Propulsion Lifting Adjustment Distance mm 770
Traveling Mechanism (Main Unit and Pump Station) Travel Mode Trackless Crawler
Drive Mode Hydraulic Motor Crawler
Working Pressure MPa 16
Travel Speed m/min 20
Gradeability degree 16
Hydraulic Pump Station Dimensions (L x W x H) mm 3550x1060x2480
Weight kg 4000
Travel Speed m/min 20
Rated Working Pressure MPa 25
Motor Working Current A 59.5
Rated Power kW 55
Rated Voltage V 660, 1140
Oil Pump Rated Pressure MPa 25
Displacement mL/r 71, 71