Powered roof supports KD90

0,63...0,8

Advance step, m

0,85 – 2,0

Seam thickness, m

2800 – 3250

Shield resistance, kN

Description

Designed for supporting and controlling the roof in mined area of face while operating flat seams of 0.85-2.0 m thickness.

Main advantages:

optimized construction to operate in thin and medium seams with lightweight and medium-weight roofs according to GOST 31561;
effective operation in conditions of unstable direct roof using the high retaining console effort with transmitting an effort from the hydraulic prop (patented;
long-lifetime power hydraulic system;
effective and reliable European-made control system of different types: pilot control, multi-hose control, electric-hydraulic control.

Characteristics

Seam thickness, m	0,85 – 2,0
Shield type	Support-protection type, quadri-prop
Resistivity per 1 m2 of supported area, kN/m2	430 – 560
Shield resistance, kN	2800 – 3250
Advance step, m	0,63...0,8
Centre spacing, m	1,5
Advancing force, kN	392
Shield weight, t (no more than)	6,8 – 7,7
Height (min-max), mm	600 – 2000
Width, mm	1440