deep borehole drilling rig for underground coal mining

The deep borehole drilling rig for coal mining is a highly efficient drilling device specially designed for underground water exploration, gas detection, and geological investigation. It features flexible operation, reliable safety, and strong adaptability, and is widely used in coal mine roadway construction and drilling operations in complex geological conditions.

Description

Deep Borehole Drilling Rig for Coal Mining

Deep Borehole Drilling Rig for Coal Mining is a highly efficient drilling machine specifically engineered for underground detection and construction in coal mines. Featuring a crawler chassis, it offers excellent maneuverability and passage capability, allowing it to traverse complex underground environments with ease. The rig supports 180 degree horizontal rotation and up to 700mm of vertical lifting, with a drilling head tilt range from -20 degree to +45 degree, enabling multi-directional and multi-angle drilling operations. It is ideal for a wide array of coal mine tasks, including outburst prevention, water detection, gas exploration, fault detection, roof support, and water injection, as well as intensive drilling in soft rock and coal seams—making it an indispensable tool for modern underground mining operations.

Features of Deep Borehole Drilling Rig

  • Full hydraulic drive, compact structure, and simple operation allow flexible adaptation to various roadway profiles and complex working conditions, as well as quick site relocation.
  • The power head provides high torque and long stroke, delivering high drilling efficiency and significantly improving overall productivity.
  • Equipped with a rapid feed mechanism, the rig drastically reduces drill rod loading and unloading time, and includes auxiliary devices to ease operator labor and enhance safety.
  • The variable hydraulic system ensures high speed under no load and automatically increases torque with load, making drilling smoother and more efficient.
  • Multi-functional, suitable for water detection, gas exploration, and complex geological drilling tasks; it demonstrates strong adaptability and excellent economic performance.

Applications of Deep Borehole Drilling Rig

The deep borehole drilling rig for coal mining is widely used in coal mine roadway excavation for outburst prevention, water hazard, gas, and geological structure investigation and mitigation. It is suitable for various geological formations, including coal seams, soft rock, and faults, and can perform tasks such as underground water detection, gas exploration, fault probing, roof support, outburst prevention water injection, and geological surveying. Additionally, the rig is well suited to other deep drilling scenarios, such as tunnel construction, geological exploration, and hydropower engineering.

Technical Parameters
deep borehole drilling rig for underground coal mining
Item Unit PMS1-8000-90 PMS1-10000-90 PMS1-12000-110
Complete Machine Number of Booms 1
Working Range (WxH) mm 2350x2300
Turning Radius (Operating Mode) mm 2570
Stabilized Working Width (Working Mode) mm 1240
Dimensions (LxWxH, Operating Mode) mm 4250x1240x2200(±20)
Drilling Diameter mm Φ94 to Φ200
Drilling Depth m 200 250 300
Flushing Water Pressure MPa 0.6-1.2
Suitable Drill Rods mm Φ73 to Φ89
Machine Weight Kg 7700
Ground Clearance mm 240
Working Current A 96.4, 55.7 116.1, 67.0
Starting Current A 300 400
Total Power kW 90 110
Rotary Mechanism Type & Characteristics N.m Hydraulic Rotary
Rated Working Pressure MPa 16 18 22
Rated Torque N.m 5200 8000 9000
Rated Speed r/min 55 55 40
Working Pressure MPa 20 25 27
Max. Torque N.m 8000 10000 12000
Propulsion System Type & Characteristics Rail-mounted Hydraulic Cylinder Propulsion
Working Pressure MPa 16
Propulsion Stroke mm 600, 800, 1000
Pitch Angle -20 degree to +45 degree
Horizontal Swing Angle ±90 degree
Propeller Lifting Adjustment Distance mm 700
Travel Mechanism Travel Type Crawler (Trackless)
Drive Type Hydraulic Motor Crawler
Working Pressure MPa 18 27
Travel Speed m/min 50 42
Climbing Ability degree ±20
Hydraulic System Rated Working Pressure MPa 16 22
Motor Rated Current A 96.4, 55.7 116.1, 67.0
Rated Power kW 90 110
Rated Voltage V 660, 1140
Oil Pump Rated Pressure MPa 20 25 27
Displacement mL/r 107, 107 107, 107, 40