Epic Epiroc raise borers
RAISEBORING equipment specialist Epiroc produces a range of mobile and traditional raiseboring machines.
Examples of these are the Easer L and the Robbins 92R that are able to cope with the most challenging underground mining conditions.
The Easer L model is a mobile raise borer that has high versatility and productivity that is used for medium to large underground drift mining.
Designed to drill opening holes in a block cave, sub-level caving and sub-level stoping mines, the Easer rig can be used for pre-condition holes, paste fill tube and media holes.
The Epiroc Easer L can carry out the three types of raisebore drilling modes being Conventional (or back reaming), Boxhole, and Down reaming in one package without expensive add on modules.
The Easer L machine operates in drift mines from 4.7m x 4.7m to 6 x 6m, and when drilling in conventional mode can drill holes up to 200m.
Epiroc’s Easer L model can also drill box holes up to 60m and, has the ability to drill angled holes in any direction with a minimum range of 90-60 degrees.
Robbins 92R
Epiroc’s Robbins 92R raise borer is a large capacity drilling rig that can be operated from a workstation and has recently undergone a revamp to increase its safety and productivity features.
The 92R model is the next generation in the Robbins line of raise borers and, is designed with improved features compared to its predecessors the Robbins 91RH & 123 RH introduced a decade ago.
The Robbins 92R borer can easily drill holes ranging from 2.4 to 6m in diameter and its modular format makes for easy transportation allowing for straightforward set up.
Interchangeable parts for the single base model Robbins 92R machine enable quick changeovers for different drilling conditions.
A single power pack is a new design feature of the Robbins 92R, replacing the previous standard of twin power packs.
This has reduced the installed motor power and increased overall efficiency. The powerful 500-kW main electric motor provides the torque and thrust required to penetrate the hardest of rocks.
Epiroc also manufactures and supplies drilling consumables for Raisebore drilling including drill pipe, stabilizers, pilot bits, reamers and cutters.
Recent developments include the capability for inbuilt RFID tags to keep track of usage.
Epiroc has a wide product offering in terms of mining equipment that stretches from drill rigs, loaders and trucks, excavator attachments, rock drilling tools and rock reinforcement items.
Also available from the Australian company are parts and services, including custom-engineering and fluid management solutions, replacement parts and kit and training products such as simulators.