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Wuxi Jinfan Drilling Equipment Co., ltd.

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    QCW Series Down-The-Hole (DTH) Hammer

      QCW series valveless type down-the-hole (DTH) pneumatic hammer features simple structure, excellent performance, reliable work, convenient maintenance and low air consumption.

      Complicated air distributing mechanism in hammer is abolished and replaced by simple air distribution flue, which can reduce the air flue flow length, and accompanying with lowering loss of air pressure,in addition, it also utilizes the mechanical work converted from expanding compressed air helping the decrease of compressor capacity and weight, as well as energy consumption. These features assure that this series of hammer can be used at mountain area or poor transportation site.

      QCW series hammers make highest drilling effectively under medium-high air pressure condition, as a result of full utilizing expansion work, although it is designed and manufactured for low pressure condition.

     
    Specifications
     

     

    Typedameter

     

    Holediameter

    (mm)

    Hammer consumption

    (mm)

     

    Air

    (m/min)

    Operatingair pressure

    (MPa)

     

    Impactwork

    (J)

    Percussion frequency

    (HZ)

     

    Weight

    (kg)

    QCW54

    ¢64-80

    54

    3

    0.5-0.7

    40

    18

    12

    QCW70

    ¢76-90

    67

    4

    0.5-0.7

    70

    15

    16

    QCW80

    ¢90-100

    80

    5

    0.5-0.7

    140

    15

    22

    QCW100

    ¢110-150

    104

    8

    0.5-0.7

    200

    14

    36

    QCW130

    ¢150-175

    128

    12

    0.5-0.7

    250

    14

    64

    QCW150

    ¢175-200

    142

    15

    0.6-0.7

    380

    15

    87

    QCW200

    ¢200-250

    185

    20

    0.6-0.7

    500

    14

    165

    QCW250

    ¢250-300

    220

    30

    0.6-0.7

    600

    14

    210

     


     
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