Bolters: ZB21

Excellent versatility in a small-class bolting platform.

The innovative ZB21 offers convenience and productivity on a flexible common carrier platform with ZJ21 jumbo drill rigs. 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