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Development drill rigs

DD422i

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 ) Hydrostatic transmission - Diesel engine - TCD2.2 (55 kW, Tier 4F, Stage V)
DD422i Development drill rig

Sandvik 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.

Features

Product specifications

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 ) Hydrostatic transmission - Diesel engine - TCD2.2 (55 kW, Tier 4F, Stage V)
Hole diameter
43 - 64 mm
Number of booms
2 x ​SB60 / SB60i
Drift size (H x W)
4.5 x 4.5 m
Feed length
Fixed TF500 12 to 20 ft. or telescopic TFX 6-12 ft. to 10-16 ft.
Rock drill
RD525 25kW
Voltage
380 - 1,000 V (multi voltage)
Controls type
SICA (Sandvik Intelligent Control System Architecture)
Weight
26,000 kg (depending on options)
DD422i Development drill rig

Learn more about DD422i features

Drill bit changer

Drill a full round, without leaving the cab to manually change the bit, with Sandvik's patented drill bit changer available through automation upgrade package. Reduce dependency on bit life while drilling and improve operator safety by limiting the time they spend in front of the drill.  

Boom collision avoidance system

Reduce possible collision risks with another boom or carrier with the new boom collision avoidance system. Reduce boom damages, improve productivity and maintain consistent production rates through the system's dynamic route recalculation.

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Electrification

More productive, powerful and better for workers' health

"Every mine has a capital purchase or a maintenance replacement coming up in the next few years, and they would be missing out if they decided not to investigate or pursue battery-electric technology."

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