Execution of underground drifts, horizontal and inclined.
    

Tunnels and side drifts.
  

Advancing of small drifts by traditional method (drilling with jumbos and explosives).
  

Advancing of drifts in coal, with continuos miners.
  

Advancing of drifts using Tunnel Boring Machine method (“Topos”).

Advance of horizontal drift and winning of coal and muck by continuos haulage (suspended conveyor belt)

Inclined shaft beginning from an horizontal drift.

More than 100.000 meters performed of horizontal drifts in coal, advanced by continuos miners.

More than 20.000 meters advanced of drifts and tunnels in rock, with continuos miners, jumbos and/or traditional method.

More than 3000 meters advanced of inclined shafts in coal, up to 16º (upwards and downwards), with continuos miners.

More than 2.500 meters advanced of inclined shafts in rock, up to 30º, with continuos miners and traditional method.

C/ MUÑOZ DEGRAIN, 5 - 1º
33007  OVIEDO
Asturias - Spain
Tlphn: (34) 985 23 77 73
Fax: (34) 985 27 43 76
satra@satra.biz

Continuos miner (AM-50) working in the face.