Looking for a Komatsu website outside of North America?

Underground hard rock drills

As you look to address the challenges posed by tough hard rock mining environments productively and efficiently, we offer a full line of capable and versatile jumbo drills that are built on a common platform for increased user adoption and efficient training.

Weasel Badger_ZB21 ZJ32Bi_CM_005.psd
Jumbo drills


Designed for flexibility and productivity, the ZJ21 is a jumbo drill on a first-ever common-carrier platform. The controls and boom let you convert your jumbo to a bolter, or vice versa. The ZJ21 also offers excellent useable coverage in a small jumbo platform.

Hard rock_ZJ21 ZB21_Sudbury ON Canada_JH_201116_Komatsu Layered PSD (3).psd

Underground hard rock 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.
LHD_WX07_Norcat Sudbury Ontario_JH_210106_66.jpg

Find what works for you