Hydraulic Bolting Jumbo for Coal Mine

CMM2-8 Hydraulic Bolting Jumbo for Coal Mine

  1. First of its kind at home and abroad: Specifically designed for the “Coal Mine Roof-Cutting Pressure Relief Gob-Side Entry Retention Non-Pillar Mining Technology,” enabling both pre-splitting roof-cutting holes and auxiliary roof bolt (cable) installation.
  2. High hole quality: Dual-boom roof support for stabilization, hydraulic holder for rod support, and large-diameter high-strength drill rods effectively ensure borehole quality, and the boreholes are straight and are compatible with directional blasting energy tubes.
  3. Meeting borehole angle requirements: Both drill booms are equipped with adjustment mechanisms for lateral swing angles along the orientation of the coal mining area. Both drilling rigs are equipped with parallel swing mechanisms for directional swing angles along the roadway’s orientation. This configuration effectively ensures that through-cracks are formed between boreholes after directional blasting.
  4. Boreholes aligned in a straight line: The lateral movement mechanism independently drives the drill boom, ensuring that all boreholes are aligned in a straight line. This allows the roof to be cut along the pre-split seam line, avoiding the need for frequent adjustments to the travel unit.
  5. High drilling efficiency: A 55 kW motor and a 145 mL/r variable displacement piston pump are equipped. This ensures that two drill rigs can operate independently or simultaneously, significantly improving drilling efficiency.
Category:

CMM2-8 Hydraulic Bolting Jumbo for Coal Mines: High-Efficiency Roof-Cutting & Bolting

The Hydraulic Bolting Jumbo for Coal Mine is the first of its kind, designed for the Coal Mine Roof-Cutting Pressure Relief Gob-Side Entry Retention Non-Pillar Mining Technology. It efficiently integrates both pre-splitting roof-cutting holes and auxiliary roof bolt (cable) installations.

Key Features:

  • High Hole Quality: Dual-boom roof support for stability and hydraulic holders for rod support. Equipped with large-diameter, high-strength drill rods to ensure straight and accurate boreholes, compatible with directional blasting energy tubes.

  • Borehole Angle Precision: Both drill booms feature lateral swing angle adjustment mechanisms, ensuring proper alignment for directional blasting. The rigs also include parallel swing mechanisms for effective roadway orientation.

  • Straight Boreholes: Independent lateral movement drives ensure that all boreholes align perfectly, cutting the roof along the pre-split seam line without the need for frequent travel unit adjustments.

  • High Drilling Efficiency: Powered by a 55 kW motor and a 145 mL/r variable displacement piston pump, this Hydraulic Bolting Jumbo enables independent or simultaneous operation of two drill rigs, significantly boosting drilling efficiency.

Product Parameters

Name Unit Low-Profile Type Standard Type Remarks
Overall dimensions mm 3000(L)×700(W)×1850(H) 3000(L)×700(W)×2350(H) Customizable
Number of drilling booms pcs 2
Applicable roadway height m 1.9-2.4 (Equipped with a 600mm extension tip, suitable for roadway heights of 2.5-3 m) 2.4-3.1 (Equipped with an 800mm extension tip, suitable for roadway heights of3.1-3.8 m) Customizable
Drill bit diameter mm φ42/φ45/φ48/φ50/φ55/φ60 Optional
compatible rock drill tools mm φ34/φ42/B19/B22 Optional
Motor rated torque N·m ≥400
Motor single feeding stroke mm 1070 1470
Drilling depth m 0-35
Drill boom center distance mm 2800/3000
Lateral stroke of drill boom along the coal mining area orientation mm 350
Stroke ofdrill boom along the roadway orientation mm 100
Lateral swing angle of drill boom along the coal mining area orientation ° ±30
Swing angle ofdrill boom along the roadway orientation ° ±10
Total power kW 55

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