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
ItemUnitPMS1-8000-90PMS1-10000-90PMS1-12000-110
Complete MachineNumber of Booms1
Working Range (WxH)mm2350x2300
Turning Radius (Operating Mode)mm2570
Stabilized Working Width (Working Mode)mm1240
Dimensions (LxWxH, Operating Mode)mm4250x1240x2200(±20)
Drilling DiametermmΦ94 to Φ200
Drilling Depthm200250300
Flushing Water PressureMPa0.6-1.2
Suitable Drill RodsmmΦ73 to Φ89
Machine WeightKg7700
Ground Clearancemm240
Working CurrentA96.4, 55.7116.1, 67.0
Starting CurrentA300400
Total PowerkW90110
Rotary MechanismType & CharacteristicsN.mHydraulic Rotary
Rated Working PressureMPa161822
Rated TorqueN.m520080009000
Rated Speedr/min555540
Working PressureMPa202527
Max. TorqueN.m80001000012000
Propulsion SystemType & CharacteristicsRail-mounted Hydraulic Cylinder Propulsion
Working PressureMPa16
Propulsion Strokemm600, 800, 1000
Pitch Angle-20 degree to +45 degree
Horizontal Swing Angle±90 degree
Propeller Lifting Adjustment Distancemm700
Travel MechanismTravel TypeCrawler (Trackless)
Drive TypeHydraulic Motor Crawler
Working PressureMPa1827
Travel Speedm/min5042
Climbing Abilitydegree±20
Hydraulic SystemRated Working PressureMPa1622
MotorRated CurrentA96.4, 55.7116.1, 67.0
Rated PowerkW90110
Rated VoltageV660, 1140
Oil PumpRated PressureMPa202527
DisplacementmL/r107, 107107, 107, 40