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Underground hard rock bolters
ZB21
- Installable bolt lengths (ft) 5 - 8
- Installable bolt lengths (m) 1.5 - 2.4
- Maximum vertical reach (ft) 20 ft. 11 in
- Maximum vertical reach (m) 6 370
- Minimum bolting height (ft) 9 ft. 6 in
- Minimum bolting height (m) 2 893
Purchase options
Request a quoteExcellent versatility in a small-class bolting platform.
The innovative ZB21 offers convenience and productivity on a flexible common carrier platform. This solid workhorse allows completion of the bolting cycle from the operator enclosure to reduce human interaction with screens and bolts.
- 100% of bolting cycle can be performed from the operator’s compartment
- 2 of the major bolt types can be installed off a single carousel
- 100% tunnel bolting coverage — walls, and backs
Resources
Features and benefits
Innovative bolting head
Limited moving mechanical parts and a simple design for smooth operability. Reduced bolting cycle times and increased drifter uptime helps you keep production moving.
Performance-boosting operator enclosure
Ergonomic, ISO-compliant and ROPS/FOPS-certified cabins or canopies. Optional enclosed cabin available with climate control.
Productive drifters
Exceptional consumable life with technologies designed to enhance drilling productivity. Drifter model options include the Komatsu JZD08, JZD10 and JZD12, manufactured by Montabert.
Screen handler and chemical injection system
Integrated screen handling allows full completion of bolting cycle from inside the operator enclosure. New chemical injection system provides superior alignment and accuracy and can help boost productivity with reduced bolting cycle times.
Common carrier design between ZB21 and ZJ21
New platform offers universal controls, outer boom structure, driveline and operator enclosure configurations. Designed to give your mining operation versatility while simplifying maintenance and training.
Superior coverage
Exceptional coverage for vertical and horizontal reach. Ideal for fitting into many smaller mine sections and can use a variety of bolt types: mechanical, friction, chemical and hydro expanding.
Videos
Feature segments: Komatsu hard rock drilling and bolting
The drilling and bolting process is one of mining’s biggest challenges. The new Komatsu ZB21 bolter has a lot of new innovations – including the ability to integrate the Jennmar J-LOK P pumpable resin injection system – to improve your operation.
Get a walkaround and benefits overview for our ZB21 bolter
Versatility and productivity in a small-class bolting platform.
A bolting cycle animation featuring the ZB21 bolter
The ZB21 has a common platform design with universal controls and and efficient drilling cycle with proven Montabert drifter technology.
Komatsu's integrated screen handling and bolting cycle bolts
For all your varying drill conditions, including multiple bolt type installations, we have everything you need to complete your bolting cycle at Komatsu.
Komatsu's Integrated screen handling and bolting cycle Chemical Bolts Installation
Get complete and safe mechanized ground support installation with no operator exposed or manual handling when using the integrated screen handler.
Interchangeability between bolt types means better compatibility
Komatsu features a full range of consumables for all installable bolt types, including dollies and drivers, centralizers, and carousel flowers.
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