Powered roof supports DM

0,6...0,7...0,8

Advance step, m

0,85 – 1,75

Seam thickness, m

2200 – 2800

Shield resistance, kN

Description

Designed for supporting and controlling the roof in mined area of face while operating flat seams of 0.85-1.75 m thickness.

Main advantages:

optimized construction to operate in thin seams with lightweight roofs according to GOST 31561;
unique construction of catamaran-type basement lifting mechanism to operate in soft soil conditions;
effective operation in conditions of unstable direct roof using the high retaining console effort with transmitting an effort from the hydraulic prop (patented);
effective and reliable European-made control system of different types: pilot control, multi-hose control, electric-hydraulic control.

Characteristics

Seam thickness, m	0,85 – 1,75
Shield type	Shield, support-protection type, double-prop
Resistivity per 1 m2 of supported area, kN/m2	385 – 505
Shield resistance, kN	2200 – 2800
Advance step, m	0,6...0,7...0,8
Centre spacing, m	1,5
Advancing force, kN	300
Shield weight, t (no more than)	7,5 – 7,7
Height (min-max), mm	610 – 1750
Width, mm	1440