Cannon by Fletcher Releases DPIS Bolter With KRMG3

The new machine adds the KRMG3 bolting module, described as the shortest of its kind on the market, to the DPIS platform.

Updated on Nov. 3, 2026 in Manufacturing

Photograph of a compact underground mining bolter with an extended roof-bolting boom inside a rock-walled mine drift under warm work lights. — Cannon by Fletcher has released a DPIS bolter with its KRMG3 bolting module, the first unit delivered to the University of Arizona's San Xavier Mining Laboratory. AI Illustration. Upload story photo >

Cannon by Fletcher has released the DPIS bolter equipped with its KRMG3 bolting module. The first DPIS-1-HD-KRMG3 bolter was delivered to the University of Arizona's San Xavier Underground Mining Laboratory.

Why it matters

Mine operators are placing greater emphasis on equipment manoeuvrability, accessibility and efficient machine positioning underground. The KRMG3 module was developed to improve bolter manoeuvrability in those conditions.

The KRMG3 is described as the shortest bolting module currently available on the market, with no exact dimensions given in the release. The release does not disclose pricing or unit volumes.

The players

Cannon by Fletcher

Cannon by Fletcher is the manufacturer that released the DPIS bolter and developed the KRMG3 bolting module.

University of Arizona San Xavier Underground Mining Laboratory

The San Xavier Underground Mining Laboratory is a University of Arizona research facility that received the first DPIS-1-HD-KRMG3 bolter.

The details

The DPIS platform includes a dual-entry operator cabin that allows operators to enter or exit from either side of the machine, and it can install multiple bolt types. The DPIS-2-HED dual-boom face drill was relaunched alongside the new bolter.

The article announcing the DPIS bolter with the KRMG3 module was published on November 3, 2026.
The KRMG3 module is expected to become available across multiple Cannon bolter platforms in the future.

Industry Context

The KRMG3 module extends Cannon by Fletcher's established DPIS platform, adding a roof bolting option to a machine line that already includes the DPIS-2-HED dual-boom face drill. The release follows the relaunch of that face drill and fits a product line built around underground mining equipment.

For mining operators, the shorter KRMG3 module and dual-entry cabin may ease bolter positioning in tight underground spaces. The release does not give pricing or availability dates for buyers.

The takeaway

Equipment that is easier to position and access underground can change how mining crews plan roof support work. Operators evaluating new bolters should weigh maneuverability alongside the bolt types each machine supports.