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  • Df20 2bd Double Booms Track Hydraulic Rock Drilling Jumbo - China

    price: contact company for price

    DF20-2BD hydraulic rock jumbo is mainly used to drill blast holes for

    tunneling constructions in mining, metallurgy, water and electricity,

    railway, highway engineering, etc. This series use all hydraulic drive,

    two booms work together, with high efficiency and speed which can be 0.8-

    2 m/min. The advanced hydraulically controlled drilling system, which is

    safe and easy to operate, incorporates the auto stop and anti-jamming

    function, auto-stop at end-point, auto-wash. This jumbo has a small

    body, runs with the crawler, can climbing flexibly on 14°slope. 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 can not only

    drill blast hole, according to the the basis of section, it also can

    drill bolt hole conveniently with our patent impeller.The jumbo runs

    with both wheels and crawler, even suit working in bad environment.

    Item Parameter

    Body Overall size (l×b×h)mm 7940×1250×2450

    Hole diameter mm φ27~φ45

    Drill pipe length mm 3090

    Hole depth mm 2700

    Drilling speed m/min 0.8~2

    Section (b×h)m 2.5×2.5~5.5×4.5

    Total power kW 45+2.2+7.5

    Total weight t 9.0

    Bottom Min. turning radius m spot turn

    Running speed km/h ≤2.5

    Climbing capability 14°

    Boom Up and down up55° down16°

    Swing boom inner14° outer47°

    Compensation mm 1500

    Rotation positive180° negative180°

    Thruster Pitching down105° up15°

    Swing angle inner45° outer45°

    Total length mm 3880

    Distance mm 2700

    Max. Propulsion N 9000

    Hydraulic rock drill Model number HYD200

    Impacting oil pressure MPa 14~16

    Impacting flow L/min 30~45

    Torque N·m 60~260

    Impacting energy J 100~200

    Impacting frequency Hz 34~67

    Rotation speed r/min 200

    Weight kg 115

    Hydraulic system Impacting loop pressure Mpa 16

    Drill pipe rotation loop pressure Mpa 15

    Compensation loop pressure Mpa 10

    Boom loop pressure Mpa 17.5

    Propulsion loop pressure Mpa 10

    Leg extension loop pressure Mpa 18.5

    Running loop pressure Mpa 15

    Air system Drop tank air pressure Mpa 0.03

    Blowing hole air pressure Mpa 0.7

    Rock drill air pressure Mpa 0.4

    Water system Rock drill water pressure Mpa 0.8-1.5

    Colder water pressure Mpa 0.6

    Electric system Installed power KW 45+7.5+2.2

    Supply voltage V 380/660

    Rated current A 84.2/48.6

    Electric motor rotation speed r/min 1470

    Switch box Explosion Insulated


    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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