Powered roof supports KD90T

0,63...0,8

Advance step, m

1,1 – 3,0

Seam thickness, m

4750 – 6380

Shield resistance, kN

Description

Designed for supporting and controlling the roof in mined area of face while operating flat seams of 1.1-3.0 m thickness.

Main advantages:

optimized construction to operate in thin and medium seams with medium-weight and heavy 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	1,1 – 3,0
Shield type	Support-protection type, quadri-prop
Resistivity per 1 m2 of supported area, kN/m2	815 – 930
Shield resistance, kN	4750 – 6380
Advance step, m	0,63...0,8
Centre spacing, m	1,5
Advancing force, kN	392 – 493
Shield weight, t (no more than)	8,7 – 19
Height (min-max), mm	750 – 3000
Width, mm	1440