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Development drill rigs DD422i

DD422i has the widest range of automatic drilling functions, able to achieve reduced over-breaking with maximized pull-out per blast. It’s the ideal choice for underground mine development and small-scale tunneling.

Category

Coverage

60 m²

Hole length

3.44 - 5.88 m

Tramming type and distance

Hydrostatic transmission - Diesel engine - QSB4.5 (119 kW Tier 3 Stage IIIA )

Optimized working environment

Optimized working environment

Optimize your operator’s comfort with a modern, ergonomic cabin, designed to improve visibility while reducing noise levels.

TFX telescopic feed

TFX telescopic feed

In limited spaces where both long and short rods are required, the TFX telescopic feed allows multipurpose drilling. Bolt hole drilling, face drilling, bolt installation and cross-cuttings are all possible.

Dual controls

Dual controls

In limited spaces where both long and short rods are required, the TFX telescopic feed allows multipurpose drilling. Bolt hole drilling, face drilling, bolt installation and cross-cuttings are all possible.

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