Development drill rigs

DD212

Coverage: 25 m²
Hole length: 2.83 - 3.44 m
Tramming type and distance: Hydrostatic transmission - Diesel engine - D914L04 (55 kW, Tier 4i, Stage IIIA, MSHA)

Sandvik DD212 is a versatile single-boom electro-hydraulic jumbo for tunneling and mining development. It excels in narrow vein operations, allowing for better control of dilution, improved face and tunnel profiles, increased drill performance and lower total cost of ownership.

Features

Better dilution control

With the compact, versatile CFX feed system, the rig helps mines open smaller tunnel sections, reducing overbreak, dilution and hauling costs associated with removing ore.
Robust and compact

The compact design of Sandvik DD212 enables the rig to open up much smaller tunnel sections within a mine, allowing for increased levels of productivity with more meters advanced.
Versatile drill

The drill can be used for face drilling, bolting and crosscutting. It is equipped with the SB20i hydraulic boom with one meter boom extension, 360-degree rotation and full automatic parallelism - to ensure easy, fast feed positioning and accurate face drilling, leading to up to 15% gain in drilling time.

Product specifications

Download DD212 specification sheet (PDF)

Coverage: 25 m²
Hole length: 2.83 - 3.44 m
Tramming type and distance: Hydrostatic transmission - Diesel engine - D914L04 (55 kW, Tier 4i, Stage IIIA, MSHA)
Hole diameter: 43 - 64 mm
Number of booms: 1 x SB20i
Drift size (H x W): 2.5 x 2.5 m
Feed length: Fixed TF500 10 to 12 ft or telescopic CFX 6-12 ft. or CFX-XS
Rock drill: RDX5 20kW
Voltage: 380 - 690 V (multi voltage)
Controls type: THC562, hydraulic controls
Weight: 10,850 kg (depending on options)

Learn more about DD212 features

Instrumented boom

SB20i instrumented boom enhances performance with feed auto parallelism, resulting in up to a 3% improved pull-out ratio per round. With a one-meter boom extension, the boom provides extensive coverage, spanning tunnel cross sections from 6 m² to 25 m².

Best fit in narrow vein

The rig ensures operational efficiency, with precise electronic positioning and instrumentation for hole measurements. It excels in narrow vein drilling applications.