A heavy, crawler-tracked, 200-hp (149-kW) cutter loader designed for longwall faces in seams over 4-1/2 ft (1.37 m) thick, and takes a buttock 5 ft (1.52 m) wide. The maximum cutting height is 7-1/2 ft (2.29 m). Dimensions: length 17-3/4 ft (5.41 m), width 4-1/2 ft (1.37 m), and height 3-3/4 ft (1.14 m). The cutterhead consists of seven cutter chains mounted side by side and can be moved up and down radially to cut the coal from roof to floor. It delivers the coal onto the face conveyor by a short cross conveyor. Capacity is 961 more than 400 st (363 t) per machine and more than 4 st (3.63 t) output per worker per shift.