Cross Roof Supports

These supports are part of the longwall system and support the mine working mine roofs at the crossing of the face and the gateway – the most sensitive point of the longwall mining system, and the face ends.

They enable the mechanisation of the following works:

  • gateway roof support maintaining a constant support resistance
  • road heading building in the crossing area just before the face front to the outside of workings
  • moving the conveyor drive as face progresses
  • automatic advancing of roof supports
  • adjustment of the canopy to fit the variable shape of the roof in the crossing area
FAZOS-17/37-W FAZOS-18/38-S FAZOS-18/38 FAZOS-19/37 FAZOS-24,5/43
Height of the system 1,7 - 3,7 1,8 - 3,8 1,8 - 3,8 1,9 - 3,7 2,45 - 4,3
Operating range 1,9 - 3,6 2,0-3,7 2,0 - 3,7 2,0 - 3,6 2,65 - 4,2
Leg capacity 987 1040 1108 1388 1570
Leg capacitystojaków (robocza) [kN] 1080 1143 1212 1648 1767
Support densityobudowy [MN/m²] 0,37 0,40 0,40 0,52 0,77
Stroke of advance 1,6 1,6 1,6 1,6 0,8
Advancing force outer unit 2 x 206 2 x 194 2 x 206 2 x 311 776
Advancing force central unit 2 x 458 2 x 430 2 x 458 2 x 643 1108
Advancing force drive 2 x 458 2 x 663 2 x 643 2 x 643 1108
Supply pressure 25-30 25-30 32 32 32
Weight of the unit 34 600 36 700 43 200 46 410 43 560
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