Is designed for supporting the sublevel caved roofs of the long walls with coal faces, length between 60 -120 m from the large thickness coal seams.
The powered roof support can operate together with the armoured face conveyor and the longwall shearer forming the so called mechanized complex.
Techincal characteristics
Technical characteristics |
MU |
SMA-SH |
Type of the support |
- |
four leg shield |
Working height Hmin/Hmax |
mm |
2700/3200 |
Inter axis step |
mm |
1500 |
Advancing step |
mm |
700 |
No. of props - props lifting power |
kN |
4x1000 |
Floor pressure |
kN/m2 |
1038 |
Operation angle
- on advancing direction
- on declivity |
grd |
± 10
max. 15 left and right |
Operation reagent |
- |
oil + water (3-5 %) emulsion |
Weight |
kg |
12500 |
