+34 944 240 835 Gran vía 53, 3º Dcha - 48011 Bilbao

DT821 SC

Manufacturer Sandvik
Machinery category Jumbos
Machinery type Drill


Tunnels size 8 420 x 14 210 mm
Covered area 12-110 m2
Holes length up to 6.180 mm
Holes diameter 43-64 mm
Weight : 27.000/29.400 kg
Length 14 930 mm
Width 3 000 mm
Height 3 600 mm
Main components:
Hammers: 2xRD525, 25 kw
Control system: Electronic TPC 561
Total input power: 180 kW
Arms: 2xSB90
Slide: TF500, 16 ft

Related projects

Repair of the Toses tunnel. Ripoll – Puigcerdá line

The Toses tunnel is located between the municipality of the same name and the ski resort of La Molina, belonging to the municipality of Alp (Gerona). It is 3,904 m […]

Meagas Tunnel

The Meagas tunnel is located on the Bilbao-Donostia line, within the municipality of Getaria, and has a daily traffic of trains belonging to the E1 line of Euskotren. The E1 […]