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Mining

Blasthole Drills

To meet your drilling and blasting objectives, look to powerful and reliable Komatsu rotary and down-the-hole blasthole drills. Designed for challenging operating environments, including arctic, high altitude and weak power grid mines.

Blasthole Drills
Metric Imperial (US)
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ZT44

Track drill
  • Horsepower (kW) 597 kW @ 2 100 rpm
  • Compressor (CMM @ 34.5 bar) 38.5
  • Hole range (mm) 140 - 220
  • Horsepower (HP) 800 HP @ 2,100 rpm
  • Compressor (CFM @ 350 psi) 1,360
  • Hole range (in) 5.5 - 8.5
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ZR77

Rotary drill
  • Hole diameter (mm) 200 - 270
  • Bit loading (kg) 34 925
  • Single pass hole depth (m) 16.8
  • Hole diameter (in) 7 7/8 - 10 5/8
  • Bit loading (lbs) 77,000
  • Single pass hole depth (ft) 55
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ZR122

Rotary drill
  • Hole diameter (mm) 349
  • Bit loading (kg) 55 338
  • Single pass hole depth (m) 20
  • Hole diameter (in) 13 3/4
  • Bit loading (lbs) 122,000
  • Single pass hole depth (ft) 65
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320XPC

Rotary drill
  • Hole diameter (mm) 270 - 444
  • Bit loading (kg) 68 038
  • Single pass hole depth (m) 19.8
  • Hole diameter (in) 10 5/8 - 17 1/12
  • Bit loading (lbs) 150,000
  • Single pass hole depth (ft) 65
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