Development drill rigs
DD421
- Coverage
- 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.
Features
-
Agile carrier
DD421 features an agile frame-steered carrier that facilitates easy tramming in small tunnels.
-
Hydraulic controls
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.
Product specifications
- Coverage
- 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)
- Hole diameter
- 43 - 64 mm
- Number of booms
- 2 x SB60
- Drift size (H x W)
- 4.5 x 4.5 m
- Feed length
- Fixed TF500 12 to 16 ft or telescopic TFX 6-12 ft. to 10-16 ft.
- Rock drill
- RD525 25kW
- Voltage
- 380 - 690 V (multi voltage)
- Controls type
- THC561, hydraulic controls
- Weight
- 24,500 kg (depending on options)
Learn more about DD421 features
FOPS/ROPS-approved cabin
Enhance the comfort and safety of operators with a FOPS/ROPS-approved (ISO 3449) cabin. Features include air-conditioning and safety-laminated windows.
Related Products and Services
Parts and components
Rock drills
Rock drills are a highly demanding component to design and manufacture. With decades of dedication and engineering work we have developed our rock drills for harsh conditions and heavy-duty work.
Technology
Remote monitoring service
Remote monitoring service uses intelligent technology that enables the prevention and prediction of breakdowns before they happen.
Home
Services
We offer different type of service agreements and on demand services that can be adapted to suit the support you require – helping you to maintain your fleet in the optimal way.
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- Coverage
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- Hole length
- 3.44 - 4.66 m
- Tramming type and distance
- Hydrodynamic transmission - Diesel engine - OM904LA (110 kW, Tier 3, Stage IIIA)
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- Coverage
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- Hole length
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- Tramming type and distance
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- Coverage
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- Hole length
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- Tramming type and distance
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DD322i
- Coverage
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- Hole length
- 3.44 - 5.27 m
- Tramming type and distance
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- Coverage
- 34 m²
- Hole length
- 2.83 - 4.66 m
- Tramming type and distance
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DD210
- Coverage
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- Hole length
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- Tramming type and distance
- Hydrostatic transmission - Diesel engine - D914L04 (55 kW, Tier 4i, Stage IIIA, MSHA)
DD422i
- Coverage
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- Hole length
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- Tramming type and distance
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DD311
- Coverage
- 40 m²
- Hole length
- 3.44 - 4.66 m
- Tramming type and distance
- Hydrostatic transmission - Diesel engine - TCD2012 (74 kW, Tier 3, Stage IIIA, Canmet, China 2)
DD422iE
- Coverage
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- Hole length
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- Tramming type and distance
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DD212
- Coverage
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- Hole length
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- Tramming type and distance
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