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  • Cmj1 14 Coal Mine Track Drilling Jumbo - China

    price: contact company for price

    CMJ1-14 is mainly used to drill blast holes for tunneling constructions

    in mining, metallurgy, water and electricity, railway, highway

    engineering, etc. This series uses all hydraulic drive, with high

    efficiency and speed which can be 0.8-2 m/min. The advanced

    hydraulically controlled drilling system, which is safe and simple to

    operate, incorporates the auto stop and anti-jamming function, auto-

    stop at end-point, auto wash. Working with electric motor can improve

    the working environment a lot, reduces noise, dust and energy

    consumption. The flexible hydraulic rock drill can work on the section,

    roof, side and floor. The jumbo cannot only drill blast hole, according

    to the basis of section, it can drill bolt hole conveniently with our

    patent impeller.

    Item Parameter

    Body Overall size(l×b×h)mm 7050×900×1736

    Hole diameter mm φ42

    Drill pipe length mm 2475

    Hole depth m 2.1

    Drilling speed m/min 0.8-2

    Section (b×h)m 2×2~3.5×3.5

    Total power KW 32.2

    Total weight KG ~6000

    Bottom Min. turning radius (spot turn) m 4.5

    Running speed km/h 2.5

    Climbing capability (smooth-riding surface) ~28°

    Boom Up and down up55° down16°

    Swing boom inner30.5° outer30.5°

    Compensation mm 1500

    Rotation angle positive180°negative180°

    Thruster Pitching down105° up15°

    Swing angle inner45° outer45°

    Total length mm 3980

    Hole depth mm 2100

    Max. Propulsion N 9000

    Air system Blowing hole air pressure Mpa 0.7

    Oil tank air pressure Mpa 0.03

    Rock drill air pressure Mpa 0.4

    Water system Rock drill water pressure (≥) Mpa 1.2

    Colder water pressure (≤) Mpa 0.6


    Company Contact:


    • Phone: 863158303760

    • Address: 500 meters east of Huagong Bridge,Yinxi Developmen, Tangshan, China

    • Email: Email


    Published date: August 30, 2013 -

    • Business Description: involved in international trade import export of goods, products, and services

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