Mine Master has hopped on-board the mine electrification train, announcing the release of its first electric bolter for underground mining.

The Roof Master 1.8KE has started working at KGHM’s Lubin polymetallic mine in Poland, the equipment maker said.

Designed to work in galleries from 3 m to 5.8 m in height, the bolter is equipped with a 1.8 m mechanised bolting mast for nine bolts.

The 120 kWh sodium-nickel battery installed on board can be recharged by using the existing mine power network in the 500-1,000 V range, Mine Master said. For this purpose, a battery charger is built onto the machine chassis, with energy recuperation also possible during downhill tramming.

In addition, the bolter is equipped with a closed air-conditioned operator’s cabin, Mine Master said.

“The battery-electric solution will help the mine to reduce gas emissions, improve safety and ease maintenance,” Mine Master explained.