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NUMA120 Down The Hole Hammer High Grade Tungsten Carbide Inserts

Categories DTH Drill Bits
Brand Name: MIROC
Model Number: NUMA120 DTH hammer and bit
Certification: API
Place of Origin: ShanDong China(Mainland)
MOQ: 1 piece
Price: negotiation
Payment Terms: L/C, D/A, D/P, T/T, Western Union, MoneyGram
Supply Ability: 8000 pieces per month
Delivery Time: 1-20 days
Packaging Details: Carton or Wooden Box
Type: DTH hammers and buttons
Material: Tungsten Carbide / YK05
Processing: Forging
Color: Green , Golden etc
Impact/min: 860-1510
Bit shank: Numa100, Numa120, SD8 , SD10 , QL80
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    NUMA120 Down The Hole Hammer High Grade Tungsten Carbide Inserts

    NUMA120 Down The Hole Hammer High Grade Tungsten Carbide Inserts


    In DTH drilling, the rock drilling bit is a continuation of the shank, which the rock drill piston strikes directly. Since the piston is in direct contact with the drill bit, little energy is lost. This gives DTH drilling a nearly constant penetration rate regardless of hole length.

    DTH bits are paired with their corresponding hammers (by drilling hole diameter and spline configuration). Customers can customize their DTH bits in various ways, such as changing the tungsten carbide insert profile (spherical, ballistic, etc.), face profile (flat face, concave, convex, etc.), and flushing holes.

    • Medium to large size drilling diameters
    • Works in high pressure range, capable of drilling deep hole lengths


    Applications of DTH Bit

    • Underground mining
    • Tunneling

    Quarry benching operations


    Competitive Advantage


    • High grade tungsten carbide inserts
    • Bit bodies manufactured from high grade steel and processed using state-of-the-art CNC machinery and heat treatment

    Specification of DTH Bits

    Product

    Code

    Flushing

    Holes

    Diameter

    (mm)

    Weight

    (kg)

    Gauge Buttons

    ( No.x mm)

    Front Buttons

    ( No. x mm)

    DTH65PQ

    1

    68 - 72

    1.5

    4 x12

    3 x 12

    DTH75PQ

    3

    75 - 77

    2.4

    5 x 12

    3 x 12

    DTH76PQ

    2

    76 - 78

    2.5

    5 x 12

    3 x 12

    DTH76-78

    2

    78 - 82

    2.6

    5 x 12

    3 x 12

    DTH80PQ

    3

    82 - 84

    3

    5 x 12

    6 x 12

    DTH90A

    3

    90 - 95

    3.6

    6 x 14

    4 x 12

    DTH80XD-90

    3

    90 - 95

    3.4

    6 x 12

    4 x 12

    DTH80-II-80

    3

    80 - 82

    3

    5 x 12

    4 x 12

    DTH90B

    3

    90 - 95

    3.8

    6 x 14

    4 x 12

    DTH90T1

    2

    90 - 95

    3.6

    6 x 14

    1 x 12, 3 x 12

    DTH90T2

    2

    90 - 95

    3.8

    6 x 14

    4 x 12

    DTH90T3J

    3

    90 - 95

    3.6

    6 x 14

    4 x 12


    Technical Manual of DTH Hammer

    Low Pressure DTH Hammer

    Product Code

    Length

    (mm)

    External

    Diameter

    (mm)

    Working

    Pressure

    (Mpa)

    Air

    Consumption

    (m3/min)

    Torque

    (N.m)

    Impact

    Frequency

    (n/min)

    1

    DTH65B

    745

    ø61.2

    0.5 - 0.7

    2.5

    51

    ≥810

    2

    DTH70

    803

    ø67.2

    0.5 - 0.7

    3

    70

    ≥810

    3

    DTH76

    766

    ø67.2

    0.5 - 0.7

    3

    75

    ≥810

    4

    DTH80

    796

    ø72

    0.5 - 0.7

    5

    81

    ≥800

    5

    DTH80-II

    756

    ø67

    0.5 - 0.7

    3

    75

    ≥810

    High Pressure DTH Hammer

    Product Code

    Length

    (mm)

    External

    Diameter

    (mm)

    Working

    Pressure

    (Mpa)

    Air

    Consumption

    (m3/min)

    Torque

    (N.m)

    Impact

    Frequency

    (n/min)

    1

    DTH330

    867

    ø71

    0.8 - 2.1

    3 - 12

    150

    ≥800

    2

    DTH335

    908

    ø81

    0.8 - 2.1

    4.3 - 14.2

    205

    950 - 1500

    3

    DTH340

    1052

    ø92

    0.8 - 2.1

    3.5 - 18

    304

    ≥800

    4

    DTH345

    1034

    ø98

    0.8 - 2.1

    3.5 - 15

    335

    ≥800

    5

    DTH345K

    994

    ø98

    0.8 - 2.1

    3.5 - 15

    400

    ≥820

    6

    DTH350

    1387

    ø114

    0.8 - 2.1

    5.7 - 18

    590

    810 - 1470

    7

    DTH355

    1220

    ø124

    0.8 - 2.1

    6.5 - 18

    700

    810 - 1500

    Through Reverse Circulation DTH Hammer

    Product Code

    Length

    (mm)

    External

    Diameter

    (mm)

    Working

    Pressure

    (Mpa)

    Air

    Consumption

    (m3/min)

    Torque

    (N.m)

    Impact

    Frequency

    (n/min)

    1

    DTHF335

    1143

    ø85

    0.7 - 2.1

    4.2 - 11.7

    475

    ≥800

    2

    DTHF345

    1281

    ø105

    0.7 - 2.1

    5.7 - 14.2

    600

    ≥800

    3

    DTHF355

    1292

    ø124

    0.8 - 2.1

    6.5 - 19.3

    791

    810 - 1200

    4

    DTHF365

    1345

    ø154

    0.8 - 2.1

    9 - 18

    950

    600 - 1100

    5

    DTHF385

    1578

    ø190

    0.8 - 2.1

    12 - 30.8

    1040

    660 - 1208

    6

    DTHF3105

    1440

    ø250

    0.8 - 2.4

    15 - 34

    1260

    600 - 1230

    7

    DTHF3125

    1430

    ø270

    0.8 - 2.4

    20 - 37.8

    1250

    600 - 1150




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