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.

Komatsu ZB21 underground hard rock drill
Jumbo drills


Designed for flexibility and productivity, the ZJ21 is a jumbo drill on a first-ever common-carrier platform that makes operator training and adoption on the controls easier and faster. The ZJ21 also offers excellent useable coverage in a small jumbo platform.

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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.
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