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
ItemUnitPMS1-4500-55
Complete MachineNumber of Drill Booms1
Working Range (Width x Height)mm2000x2100
Minimum Turning Radius (in operation)mm1800
Stabilized Working Width (in operation)mm2700
Dimensions in Operation (L x W x H)mm2800x900x1950
Drilling DiametermmΦ65 to Φ133
Drilling Depthm200
Flushing Water PressureMPa0.6-1.2
Suitable Drill RodmmΦ50 to Φ73
WeightkgMain Unit 4500
Ground Clearancemm200
Rotary MechanismType/FeatureN.mHydraulic Rotary
Rated Working PressureMPa20
Rated Working FlowL/min80
Rated TorqueN.m4000
Rated Rotation Speedr/min60
Maximum Working PressureMPa22
Maximum TorqueN.m4500
Propulsion UnitType/FeatureGuide Rail Hydraulic Cylinder Propulsion
Working PressureMPa18
Propulsion Strokemm600/800
Propulsion ForcekN125
Pull-out ForcekN155
Pitch Angledegree±90 degree
Horizontal Swing Angledegree180 degree
Propulsion Lifting Adjustment Distancemm770
Traveling Mechanism (Main Unit and Pump Station)Travel ModeTrackless Crawler
Drive ModeHydraulic Motor Crawler
Working PressureMPa16
Travel Speedm/min20
Gradeabilitydegree16
Hydraulic Pump StationDimensions (L x W x H)mm3550x1060x2480
Weightkg4000
Travel Speedm/min20
Rated Working PressureMPa25
MotorWorking CurrentA59.5
Rated PowerkW55
Rated VoltageV660, 1140
Oil PumpRated PressureMPa25
DisplacementmL/r71, 71