Sandvik Mining and Rock Solutions has launched the Sandvik DD212 ­– a single-boom, electro-hydraulic drill for tunneling and mining development in narrow vein drifts. 

The new compact and intelligent development drill rig is an upgrade to the Sandvik DD210. The OEM said it is designed to deliver both high level productivity and low cost of ownership.

Based on factory and field tests, the Sandvik DD212 delivers up to 20% reduction in boom positioning time per face and about 15% improvement in drill penetration rate. Meanwhile, its 3% improved pull-out ratio can result in up to 10 cm greater advance per face when compared to similar equipment.

The machine reached 93% mechanical availability during its mine site test period, accumulating 300 hours of percussion drilling within two-and-a-half months of operation.

Among new features is the THC562 drilling control system, which enables the DD212 to provide increased drilling performance, yet reduces the wear on both the rock drill and rock tools. The SB20i intelligent boom offers a large face drill coverage from 6 to 25 m², and provides accurate hole electronic positioning. 

Sandvik said the new drill rig “brings operational safety and versatility for tackling different applications, precise electronic positioning, ergonomic operator interface, data monitoring, all leading to superior pull-out ratio and reduced tool consumption, ensuring that the new DD212 delivers the best fit in narrow vein drilling.” 

Source: www.rocktechnology.sandvik