DT621 Tunneling jumbo
Sandvik DT621 is two-boom electrohydraulic jumbo for fast and accurate tunneling and cavern excavation of 8 - 49 m². The DT621 jumbo is equipped with hydraulic drilling systems and it's available in safety canopy version. Sandvik DT621 jumbo can be used for face drilling, cross-cutting and bolt hole drilling.
Advantages:
- Built-in diagnostics to minimize maintenance time
- RD520 rock drills for optimized drilling performance
- Booms with large, optimally shaped coverage and full automatic parallelism
- Powerful 4-wheel-drive wheel steered carrier for rapid and well-balanced tramming
- FOPS-certified canopy or optional cabin for the safety
| Technical data | |
| Tunnel size | 8 820 x 6 060 mm (347 x 238 In) |
| Coverage area | 49 m² (527 ft²) |
| Hole diameter | 43 - 64 mm |
| Hole length | Up to 4 660 mm |
| Rock drill | RD520, 20 kW (26.8hp) |
| Control system | THC561, hydraulic |
| Boom | 2 x SB40 |
| Elevating boom support | No |
| Feed | 2 x TF500, 12 - 16 ft |
| Length | 12 350 mm (40.51 ft) with default feed |
| Width | 2 150 mm (7.05 Ft) |
| Height | 2 350 mm (7.70 ft) Transportation 2 950 mm (9.67) Cabin 3 200 mm (10.5 ft) Canopy FOPS/ROPS position |
| Weight (depending on options) | 22 000 kg (48 501 lbs) |