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Kaijin Machinery

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    • Horizontal directional drilling rig
    • Water well drilling rig/drilling machine
    • Wheel-type pile driver
    • Air compressor
    SITON DD4-2B Dual-Boom Underground Hydraulic Drill Jumbo
    SITON DD4-2B Dual-Boom Underground Hydraulic Drill Jumbo
    SITON DD4-2B Dual-Boom Underground Hydraulic Drill Jumbo
    SITON DD4-2B Dual-Boom Underground Hydraulic Drill Jumbo
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    • SITON DD4-2B Dual-Boom Underground Hydraulic Drill Jumbo
    • SITON DD4-2B Dual-Boom Underground Hydraulic Drill Jumbo
    • SITON DD4-2B Dual-Boom Underground Hydraulic Drill Jumbo
    • SITON DD4-2B Dual-Boom Underground Hydraulic Drill Jumbo

    SITON DD4-2B Dual-Boom Underground Hydraulic Drill Jumbo

    SITON DD4-2B Dual-Boom Underground Hydraulic Drill Jumbo with model-specific technical specifications. Hole diameter: 33-76 / 64-102 mm

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    SITON Drilling Machines

    SITON Self-Propelled Hydraulic Tunneling Drilling Rigs

    Email:

    sales1@hbkaijin.com

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    +86-15931172036

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    Product Details

    • Product Description

    • The DD4-2B is a dual-boom underground hydraulic drill jumbo for medium and large tunneling work. Its two independent drilling booms support A18D/L or A22L/D rock drills. The documented machine weight is 23,000 kg, maximum travel speed is 16 km/h and working coverage is 8,530 × 6,860 mm.

      Hole diameter: 33-76 / 64-102 mm
      Max impact power: 18 / 22 kW
      Max rotary torque: 1000 / 1550 N·m
      Feed depth: 3400 / 4000 / 4600 mm
      Work coverage: 8530 × 6860 mm
      Machine weight: 23000 kg

      Medium and large underground mines, transportation tunnels and hydropower tunneling projects.

      MAIN TECHNICAL SPECIFICATIONS
      Parameter Unit DD4-2B
      Machine Configuration — Dual-boom
      Rock Drill Options — A18D/L / A22L/D
      Shank — T38 / T38
      Hole Diameter mm 33-76 / 64-102
      Maximum Impact Power kW 18 / 22
      Impact Frequency Hz 60 / 53
      Rock Drill System Pressure bar 230 / 220
      Rotation Speed rpm 0-215 / 0-215
      Maximum Rotary Torque N·m 1000 / 1550
      Feed Models — TF1838-12 / TF1838-14 / TF1838-16
      Feed Total Length mm 5315 / 5915 / 6525
      Drill Rod Length mm 3700 / 4300 / 4915
      Hole Depth per Feed mm 3400 / 4000 / 4600
      Maximum Feed Force kN 15
      Overall Dimensions (L×W×H) mm 12700 × 2000 × 2600 / 3300
      Ground Clearance mm 335
      Machine Weight kg 23000
      Minimum Turning Radius mm Inner 3380 / Outer 6000
      Maximum Travel Speed km/h 16
      Boom Compensation mm 1250
      Boom Extension mm 1500
      Feed Beam Rotation ° ±180
      Working Coverage (W×H) mm 8530 × 6860
      Water Pump Power kW 4.5
      Maximum Water Flow L/min 160
      Water Pressure bar 8-12
      Air Compressor Power kW 7.5
      Air Compressor Flow L/min 900
      Air Compressor Pressure MPa 0.9
      Total Electric Power kW 122
      Voltage / Frequency — 380 V / 50 Hz
      Travel Engine — Yuchai WP4.1G125E301
      Travel Engine Rated Power kW 92 @ 2300 rpm
      Maximum Gradeability — 25% (14°)

      What is the hole diameter of the DD4-2B?
      The documented hole diameter is 33-76 / 64-102 mm.

      What is the maximum rotary torque of the DD4-2B?
      The documented maximum rotary torque is 1000 / 1550 N·m.

    Product Center

    mm

    maximum

    is

    the

    Product Q&A

    What working conditions are horizontal directional drilling rigs primarily used for?

    It is primarily used for trenchless installation of underground pipelines and is suitable for the construction of crossings for telecommunications, gas, and water supply and drainage pipelines.

    Can a horizontal directional drilling rig penetrate both soil and rock formations?

    Standard models are suitable for soil layers; for rock formations, a rock‑drilling attachment kit must be selected.

    What is the maximum drilling depth achievable by a water well drilling rig?

    Drilling depths vary by model; standard models cover 100–350 meters, with options available to suit specific requirements.

    Is the water well drilling rig hydraulically driven, and does it support a diesel engine as its power source?

    The entire machine is hydraulically driven and can be equipped with either a diesel engine or an electric motor as its power source.

    Is a drilling rig suitable for constructing rural drinking-water wells and engineering dewatering wells?

    Fully applicable and widely used for domestic drinking wells, agricultural irrigation wells, and construction dewatering wells.

    Is the wheeled pile driver easy to move, and does it require trailer transport?

    The wheeled chassis is self-propelled and can move under its own power over short distances; for long-distance transport, towing is recommended.

    SITON DD4-2B Dual-Boom Underground Hydraulic Drill Jumbo

    SITON DD4-2B Dual-Boom Underground Hydraulic Drill Jumbo with model-specific technical specifications. Hole diameter: 33-76 / 64-102 mm

    Email:

    sales1@hbkaijin.com

    WeChat:

    +86-15931172036

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