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DHD340 COP44 Series 4'' Rock Boring Tool Dth Hammers And Bits

Categories DTH Hammers
Brand Name: MIROC
Model Number: DTH Hammer
Certification: API
Place of Origin: China
MOQ: 1 Pieces
Supply Ability: 20000 pieces per month
Delivery Time: 25 days
Packaging Details: Carton Box or Wooden Box
Price: Negotiation
Payment Terms: L/C, T/T
Name: DTH Hammer
Series: DHD340 COP44
Size: 4''
Type: With Foot Valve, No Foot Valve
Use: Tunneling, Mining,Quarrying,Water Well
Color: Green,Black ,Orange ,Blue,Golden
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    DHD340 COP44 Series 4'' Rock Boring Tool Dth Hammers And Bits


    DHD340 COP44 Series 4'' Rock Boring Tool Dth Hammers And Bits

    Basic Information

    Items

    Replacement Parts

    1

    Top sub

    2

    O-ring of top sub

    3

    Breakout Ring

    4

    Check Valve

    5

    Spring

    6

    Compression Buffer

    7

    Air Distributor

    8

    Internal cylinder

    9

    Piston

    10

    External cylinder

    11

    Guide sleeve

    12

    O-ring of stop ring

    13

    Stop ring

    14

    Breakout ring

    15

    Drive chunk

    16

    Drill bit


    QL40 Hammer Specification

    Drilling Diameter(mm)

    Hammer Length(mm)

    External Diameter(mm)

    Weight(kg)

    φ110-φ135

    1097(without bit)

    99

    41(without bit)

    Working Pressure(Mpa)

    Air Consumption(m³/min)

    1.2-2.0

    1.0Mpa: 6m³/min

    1.8Mpa: 10m³/min

    2.4Mpa: 15m³/min

    Impact rate at 17 bar

    Connection Rod Thread

    Recommended Rotation Speed

    Bit Shank

    27HZ

    API 2-3/8'' Reg

    25-40 r/min.

    QL40


    DHD340 Hammer Specification

    Drilling Diameter(mm)

    Hammer Length(mm)

    External Diameter(mm)

    Weight(kg)

    φ108-φ130

    881(without bit)

    φ99

    38

    Working Pressure(bar)

    Air Consumption(m³/min)

    8.0-30.0

    10bar: 5

    18bar: 10.2

    24bar: 15

    Connection Rod Thread

    Bit Shank

    API 2-3/8” Reg

    DHD340A( With Foot Valve)


    Competitive Advantage
    • Valveless air distribution, more reliable.
    • Simple design of the piston. Long life span.
    • More efficient energy transfer, faster drilling speed, low air consumption and lower oil consumption.
    • Fewer internal parts, simple structure, less failure and easier to maintain.
    • Easy to disassembled because the top sub, the drive chuck and the external cylinder are connected by multiple steps thread.


    Photos


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