During the next three years the installation of face conveyors was completed almost throughout the whole pit.

Crawley:- A short chain conveyor connecting face conveyor with road belt conveyor.

It also provides accommodation for some electric motors, like that used on the endless twin chain flight bars drive in the Armoured Face Conveyor.

The supports advance with the longwall shearer and armored face conveyor units, resulting in controlled roof falls behind the supports.

Next step in the longwall mining equipment removal is the withdrawal of the "flight chains" in the Armoured Face Conveyor.

Powerful mechanical coal cutters (shearers) cut coal from the face, which falls onto an armoured face conveyor for removal.

A system of flexible cables from the pantechions, pinned in the spill tray of the Armoured Face Conveyor meets the operation's needs.

Longwall shearers - a material-cutting machine that moves back and forth on an armored face conveyor running parallel to the coal or other material being mined.

Armored face conveyors - material handling conveyors that transport material cut by the shearer away from the longwall face.

A heavy duty face has just been installed in the Middleton Little Seam, using chock shield type supports and heavy duty armoured face conveyor.

Brad Barter joined CMTE in March 2001 to conduct research into the detection and isolation of faults in the longwall armoured face conveyor.

The introduction of face conveyors (an early stage of mechanisation in the pits) in the early part of the twentieth century led to the adoption of longwall cutting.

At the Main Gate heading, coal production from the pan tray (Armoured Facing Conveyor) is turned by an angled piece, a guide board onto the "Stage Loader".

A heavy steel rack and pinion system was attached to the Armoured Facing Conveyor, and it was on this system, that the cutting shear unit sat and moved.

Our longwall is still comprised of chocks and an Armoured Face Conveyor, however the brilliant part of the Sonic Storm is in the revolutionary alternative to the traditional shearer.

Between its two "feet" bases, there is a double action (DA) hydraulic ram, which is connected by a 2 inches thick pin to the Armoured Face Conveyor (AFC) pan tray.

The shearer is carried along the length of the face on the armoured face conveyor (AFC); using a chain-less haulage system, which resembles a ruggedised rack and pinion system specially developed for mining.

As had been described in the "Method of Working" section at page 966, the Anderson-Strathclyde "AM 500 Derd" shearer cut the coal from the face to drop into the pan trays of the Armoured Face Conveyor.

Because Ellalong Colliery has now duplicated quite an amount of its longwall mining equipment, such as the pans of the Armoured Face Conveyor, a good start is gained by the Colliery in the preparation of the new longwall face.

Powered roof supports - to provide an open work space shielded against mine roof collapse, roof supports use powerful hydraulic cylinders to elevate and hold strong, thick steel plates in a horizontal position to protect the longwall shearer and armored face conveyor.