The Komatsu ZT44 Blasthole Drill is a cutting-edge and high-performance drilling machine designed specifically for efficient and precise blasthole drilling in mining operations. Packed with advanced features and technology, this drill is engineered to enhance productivity and accuracy in large-scale mining applications.

Key Features of the Komatsu ZT44 Blasthole Drill:

  1. High-Powered Drilling: The ZT44 boasts a powerful drilling capability, making it suitable for a range of blasthole drilling requirements in mining operations. Its robust design and advanced technology enable it to handle challenging geological conditions with ease.
  2. Precision and Accuracy: Equipped with advanced drilling technology, the drill ensures precise and accurate hole placement. This is crucial in mining operations where blasthole accuracy is essential for optimized fragmentation and efficient material extraction.
  3. Efficient Hole Depth: The drill is capable of reaching significant hole depths, catering to the depth requirements often encountered in large-scale mining projects. This efficiency contributes to faster drilling rates and increased overall productivity.
  4. Operator-Friendly Design: The ZT44 is designed with the operator in mind, featuring ergonomic controls and a comfortable operator cabin. The user-friendly interface enhances the efficiency and safety of drilling operations.
  5. Durability and Reliability: Built with durability in mind, the drill is constructed from high-quality materials to withstand the rigors of demanding mining environments. This ensures long-term reliability and reduces downtime for maintenance.
  6. Versatile Application: The drill is versatile and well-suited for various mining applications, including coal, metal, and mineral extraction. Its adaptability makes it a valuable asset in diverse mining scenarios.
  7. Advanced Technology Integration: The ZT44 incorporates cutting-edge technology for efficient drilling operations. This includes intelligent drilling systems, automation features, and connectivity options that enhance data monitoring and control.
  8. Environmental Considerations: The drill is designed with environmental considerations in mind, incorporating features that help minimize the environmental impact of drilling operations. This aligns with modern sustainability practices in the mining industry.
  9. Safety Features: Safety is a top priority, and the ZT44 is equipped with advanced safety features to protect operators and ensure secure drilling operations. This includes systems for monitoring and mitigating potential risks.

In summary, the Komatsu ZT44 Blasthole Drill stands out as a reliable and high-performance solution for blasthole drilling in large-scale mining operations. Its combination of power, precision, and advanced features makes it a valuable asset for maximizing productivity and efficiency in the extraction of valuable resources from the earth.

Dual-Pressure Air Compressor: The ZT44 blasthole drill features a dual-pressure air compressor with both high- and low-pressure drill settings. This adaptability allows the machine to adjust to changing drilling conditions, ensuring optimal performance even with up to an 8.5-inch hammer. The compressor’s versatility is particularly valuable in challenging elevations where production efficiency tends to decrease.

High Tractive Force and Maneuverability: Equipped with powerful tractive force and an independent oscillating undercarriage, the ZT44 provides exceptional maneuverability on uneven grades. This feature enables the drill to perform effectively in various settings, offering your operation flexibility to determine the best use of the machine.

Four Infrared Night Vision Cameras: Enhancing operational awareness, the ZT44 is equipped with four infrared night vision cameras integrated into a video system. This setup provides excellent visibility around the machine during nighttime operations. LED lighting further contributes to outstanding visibility for operators.

Compact Design for Versatility: Despite its production capacity comparable to larger machines, the ZT44 boasts a compact design tailored for efficient drilling in tight spaces. This design enhances the versatility of the drill, allowing it to navigate and operate effectively in confined work areas.

Service Accessibility: The ZT44 prioritizes service accessibility with features such as a wireless remote pendant, easy-access service walkways, and unobstructed entry into the operator’s enclosure. These design elements contribute to lower Mean Time to Repair (MTTR) and overall machine serviceability.

Optimum Heat Mitigation: To address high thermal loads generated during operation, the ZT44 incorporates a heat exchange unit. This feature enables the drill to handle temperatures of up to 131°F (50°C) in harsh conditions. Despite challenging environments, the machine maintains user-friendly serviceability, ensuring consistent performance.

Specifications for Komatsu ZT44 Blasthole Drill:

Working Ranges:

  • Hole Size: 5.5 to 8.5 in
  • Hammers: 4.0 to 8.0 in
  • Drill Pipe: 4.0 to 5.5 in


  • Pull Down Force: 12,000 lbs.
  • Pull Back: 12,000 lbs.
  • Single Pass Depth: 20 ft.
  • Maximum Depth: 140 ft.

Boom Positioning:

  • Swing Left: 10° / Right: 18°
  • Tilt: 10° below to 35° above horizontal

Mast Positioning:

  • Dump: +16° to -45° from vertical
  • Rotation Pin #1 Left/Right: -20° to +45° from vertical
  • Rotation Pin #2 Left/Right: +45° to 5° from horizontal

Rotary Head:

  • Rotation Head Speed: 0 to 99 rpm
  • Rotation Head Torque: 5,539 lbf.-ft.

Pipe Handling:

  • Carousel Capacity:
    • 4.5″ Diameter Pipe for 6 Pipe Carousel + 1 Under Head
    • 5″ Diameter Pipe for 4 Pipe Carousel + 1 Under Head

Overall Dimensions:

  • Operating Weight (Maximum): 85,000 lbs.
  • Operating Height, Mast Vertical: 37 ft. 11 in
  • Shipping Dimensions (Height x Weight x Length): 138 x 114 in, 138 x 114 x 514 in


  • 24 V
  • Electro-hydraulic Control System: Variable Displacement, Load Sensing Pumps

Power Unit:

  • Engine: Cummins QSK 19, Tier 2
    • HP Mode: 764 HP
    • LP Mode: 800 HP
  • Cummins QSK 19, Tier 4f
    • HP Mode: 770 HP
    • LP Mode: 800 HP

Air System:

  • Air Compressor, Sullair 20/12 (1150)
    • HP Mode: 1,160 CFM/500 psi @ 1,800 rpm
    • LP Mode: 1,360 CFM/350 psi @ 2,100 rpm


  • Fuel Capacity: 270 gal
  • Cooling System: L&M Mesabi
  • Tank Capacities: 134 gal, 280 gal

Lower Works and Propel:

  • Travel Auto 2 Speed: 1.86 mph
  • Oscillation: ± 8°
  • Traction Force: 50,000 lbs.
  • Ground Clearance: 15 in
  • Gradeability: 17°

Further information on this machine can be viewed by visiting this link https://www.komatsu.com/products/blasthole-drills/zt44/  

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DISCLAIMER: The information that has been provided in this article is sourced from https://www.komatsu.com. The author does not assume any responsibility or liability for the accuracy, completeness, or usefulness of the information provided. The author shall not be held liable for any loss or damage resulting from the use of this content. For further information please contact the manufacturer directly.