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Mining

Blasthole drills

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

Close up of drill on ZR77 blasthole drill

ZT44

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

ZR77

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

ZR122

  • Hole diameter 349 mm 13 3/4 in
  • Bit loading 55 338 kg 122,000 lbs.
  • Single pass hole depth 20 m 65 ft.

320XPC

  • Hole diameter 270 - 444 mm 10 5/8 - 17 1/2 in
  • Bit loading 68 038 kg 150,000 lbs.
  • Single pass hole depth 19.8 m 65 ft.

We have had dramatic results in the past month, drilling-wise. We can say that Komatsu’s presentation and training served as a hard reset of the drilling culture here. Our positive approach worked wonders and the operators really got with the program.

An offering of Komatsu's drill options

A suite of drill options engineered to handle varying conditions, including weak power grids, extreme temperatures and high altitude.

Surface mining industry

Stay on top of trends with help from our experts, customer success stories and industry point-of-view—so you feel equipped to successfully maintain and optimize your operation.
Limestone quarry with Komatsu equipment working

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