Development drill rigs
- 60 m²
- Hole length
- 3.44 - 4.66 m
- Tramming type and distance
- Hydrodynamic transmission - Diesel engine - MB OM904LA (110 kW, Tier 3, Stage IIIA)
Sandvik DD421 is a two-boom, electro-hydraulic mining development drill offering highly accurate drilling and efficient control, due to adjustable drilling settings that optimize drilling performance.
DD421 features an agile frame-steered carrier that facilitates easy tramming in small tunnels.
The hydraulic control system allows for fast, accurate drilling during drifting and tunneling of 8 - 60 square meter cross sections.
Robust and proven components
The compact drilling module allows for multi-directional drilling in low-heading tunnels. This, in combination with a range of well-designed robust components, increases equipment reliability and drilling efficiency.
Learn more about DD421 features
Enhance the comfort and safety of operators with a FOPS/ROPS-approved (ISO 3449) cabin. Features include air-conditioning and safety-laminated windows.