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Tunneling jumbos

DT821

Coverage
110.00 m²
Hole length
Up to 5.88 m
Tramming type and distance
Hydrodynamic transmission - Diesel engine - QSB4.5 (124 kW, Stage IIIA)
DT821 Tunneling jumbo

Sandvik DT821 is a two-boom jumbo designed for fast, accurate tunneling and cavern excavation drilling. It can be equipped with hydraulic or electronic drilling systems. Automatic functions and optional instrumentation enable productive operations.

Features

Product specifications

Coverage
110.00 m²
Hole length
Up to 5.88 m
Tramming type and distance
Hydrodynamic transmission - Diesel engine - QSB4.5 (124 kW, Stage IIIA)
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)
DT821 Tunneling jumbo
PowerCarbide
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Parts and components

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