Sandvik DT821
Tunneling jumbo.
Sandvik DT821 is a two-boom jumbo designed for fast, accurate tunneling and cavern excavation drilling.
Key features
- Easy to operate: This tunneling jumbo uses a powerful four-wheel-drive carrier to ensure rapid tramming and good balance.
- Strong feed: The strong feed allows the RD5 series rock drill to deliver optimal performance with a higher consumable life.
- Water-mist flushing: The tunneling jumbo uses an 11 kW water booster pump for water-mist flushing, with a capacity of 200 l/min and a pressure of 10 - 15 bar.
As an exclusive 3S dealer of Sandvik Mining and Rock Technology, we provide sales, service and genuine spare parts.
Tell us your material, required output and site conditions, and we will recommend a suitable model. Specifications, availability and pricing are confirmed in a written quotation.
Technical specifications
Figures as published by the manufacturer.
| Coverage | 110.00 m² |
|---|---|
| Hole length | Up to 5.88 m |
| Tramming type and distance | Hydrodynamic transmission - Diesel engine - QSB4.5 (129 kW, Tier 4F, Stage V) |
| Number of booms | 2 |
| Feed length | Fixed TF500 12 to 20 ft. or telescopic TFX 6-12 ft. or 10-16 ft. |
| Hole diameter (face drilling) | 43 - 64 mm |
| Hole diameter (cut hole) | 76 - 127 mm |
| Rock drill | RD520 20kW |
| Controls type | THC561, hydraulic |
| Weight | 26,500 kg (depending on options) |
Tell us what your project needs
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