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Blasthole drills

ZT44

Track drill

  • Horsepower (HP) 800 HP @ 2,100 rpm
  • Horsepower (kW) 597 kW @ 2 100 rpm
  • Compressor (CFM @ 350 psi) 1360
  • Compressor (CMM @ 34.5 bar) 38.5
  • Hole range (in) 5.5 - 8.5
  • Hole range (mm) 140 - 220

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The ZT44 is a down-the-hole surface drill rig designed for mining-duty applications. It offers high reliability and production with purpose-built structures, a high horsepower engine and large capacity dual-setting compressor that adapts to varying rock hardness conditions. The ZT44 is a versatile machine, used for pre-split, production, auxiliary and other demanding needs.

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    Features and benefits

    Dual-pressure air compressor

    Dual-pressure air compressor

    With both high- and low-pressure drill settings, this compressor can adjust to changing drilling conditions, allowing for optimal performance up to 8.5-inch hammer. This largest compressor in its class can handle challenging elevations where production often drops off.

    High tractive force and more

    High tractive force and more

    Powerful tractive force and an independent oscillating undercarriage deliver maneuverability on uneven grades and the ability to perform in various settings. That gives your operation more flexibility to determine the optimal use of your machine.

    Four infrared night vision cameras

    Four infrared night vision cameras

    Through the use of a video system, your team will have excellent operational awareness around the machine. Plus, bright night-time illumination with LED lighting offers outstanding visibility for operators.

    Compact design

    Compact design

    The ZT44 blasthole drill adds exceptional versatility to your operation with a compact form that is designed for efficient drilling in tight spaces, while still providing the production capacity of larger machines.

    Service accessibility

    Service accessibility

    A wireless remote pendant, easy-access service walkways and unobstructed entry into the operator's enclosure help support lower mean time to repair (MTTR) and aides in machine serviceability.

    Optimum heat mitigation

    Optimum heat mitigation

    Heat exchange unit mitigates high thermal loads generated during operation. That makes the ZT44 capable of handling temperatures up to 131 F (50 C) in the harshest conditions, while also maintaining user-friendly serviceability.


    Specifications

    Metric Imperial (US)
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    • Hole size (mm): 114 - 216
    • Hole size (in): 4.5 - 8.5
    • Single pass depth (ft): 22
    • Single pass depth (m): 6.7
    • Maximum depth - 6 + 1 configuration (m): 42.7
    • Maximum depth - 6 + 1 configuration (ft): 140
    • Maximum depth - 4 + 1 configuration (ft): 100
    • Maximum depth - 4 + 1 configuration (m): 30.5
    • Hammers (in): 2026-04-08
    • Hammers (mm): 102 - 203
    • Drill pipe (in): 4 - 5.5
    • Drill pipe (mm): 102 - 127

    • Carousel capacity - 4 + 1 configuration (mm): Pipe diameter > 114 mm
    • Carousel capacity - 4 + 1 configuration (in): Pipe diameter > 4.5 in
    • Carousel capacity - 6 + 1 configuration (mm): Pipe diameter ≤ 114 mm
    • Carousel capacity - 6 + 1 configuration (in): Pipe diameter ≤ 4.5 in

    • Electrical (V): 24 V
    • Electro-hydraulic control system: Variable displacement, load sensing pumps
    • Shipping dimensions (height x weight x length)(m): 3.51 x 2.89 x 1.05
    • Operating height, mast vertical (m): 11.6
    • Operating height, mast vertical (ft): 37 ft. 11 in
    • Operating weight (maximum)(lbs): 85000
    • Operating weight (maximum)(kg): 38 555

    • Diesel engine/model (metric): Non-reg. T2 and T4
    • Diesel engine/model (imperial): Non-reg. T2 and T4

    • Pull down force (lbs): 12000
    • Pull down force (kN): 53.4
    • Pull back (lbs): 12000
    • Pull back (kg): 53.4
    • Boom positioning - swing (deg): Left 10 degrees/right 18 degrees
    • Boom positioning - tilt (deg): 10 degrees below to 35 degrees above horizontal
    • Mast positioning (deg): +16 to -45 from vertical
    • Rotation pin #1: Left/right -20 degrees to +45 degrees from vertical
    • Rotation pin #2: Left/right +45 degrees to -5 degrees from horizontal

    • Cummins QSK19, Tier 2

      • HP mode Tier 2 (HP): 764
      • HP mode Tier 2 (kW): 570
      • LP mode Tier 2 (kW): 597
      • LP mode Tier 2 (HP): 800

    • Cummins QSK19, Tier 4 final

      • HP mode Tier 4 (kW): 563
      • HP mode Tier 4 (HP): 755
      • LP mode Tier 4 (kW): 516
      • LP mode Tier 4 (HP): 692

    • Ground clearance (in): 15
    • Ground clearance (mm): 381
    • Traction force (lbs): 50000
    • Traction force (kN): 222.4
    • Travel auto two-speed (mph): 1.86
    • Travel auto two-speed (km/h): 3
    • Gradeability: 30% (17 degrees)
    • Oscillation (degrees): ± 8

    • Rotation head speed (rpm): 116
    • Rotation head torque (lbf-ft): 3983
    • Rotation head torque (kN-m): 5.4

    • Cooling system: Radiator, compressor, ATAAC (air-to-air aftercooler)
    • Fuel tank capacity (standard)(gal): 234
    • Fuel tank capacity (standard)(L): 886
    • Hydraulic tank capcity (L): 507
    • Hydraulic tank capacity (US gal): 134
    • Water tank capacity (standard)(gal): 1 060
    • Water tank capacity (standard)(L): 280

    • HP mode: 33.5 CMM @ 34.5 bar (1,182 CFM/500 psi) @ 1,800 rpm
    • LP mode: 39.1 CMM @ 24.2 bar (1,382 CFM/350 psi) @ 2,100 rpm