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Tunneling jumbos

DT621

Coverage
49.00 m²
Hole length
Up to 4.66 m
Tramming type and distance
Hydrodynamic transmission - Diesel engine - OM904LA (110 kW, Tier 3, Stage IIIA)
DT621 Tunneling jumbo

Sandvik DT621 is a compact two-boom jumbo for fast, accurate tunneling and cavern excavation. Equipped with RD520 rock drill, it supports face drilling, cross-cutting and bolt-hole drilling.

Features

Product specifications

Coverage
49.00 m²
Hole length
Up to 4.66 m
Tramming type and distance
Hydrodynamic transmission - Diesel engine - OM904LA (110 kW, Tier 3, Stage IIIA)
Number of booms
2
Feed length
Fixed TF500 12 to 16 ft. or telescopic TXF 6-12 ft. to 8-14 ft.
Hole diameter (face drilling)
43 - 64 mm
Hole diameter (cut hole)
76 - 127 mm
Rock drill
RD520 20 kW
Controls type
THC561, hydraulic
Weight
22,000 kg (depending on options)
DT621 Tunneling jumbo

Learn more about DT621 features

Optimally shaped booms 

This tunneling jumbo has SB40 booms with stiff square shape profiles, offering full automatic parallelism and an ideally-shaped coverage area.  

Well-balanced tramming  

Operators can harness the powerful four-wheel-drive, steered carrier for a well-balanced, comfortable and controlled tramming experience.  

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Parts and components

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