Caterpillar Performance Handbook, January 2017, SEBD0351-47

Introduction Roof Supports ● Features

Longwall

INTRODUCTION Caterpillar is the global market leader and supplier of complete longwall systems. All over the world, our equipment and systems are meeting the demands of underground mining under the most stringent condi- tions. Adapted to the mining challenges faced by our customers today, Cat customized systems range from hydraulic roof supports, automated plow systems, shear- ers, face conveyors and drive systems to automation and roof support carriers. Caterpillar delivers your system of choice, from low to high seam heights, for the longest longwalls and highest production demands.

ROOF SUPPORTS Features

Equipment You Can Rely On ● Availability typically 98% on average. ● Extensive tests on all structural, hydraulic and control components. ● Sophisticated PMC-R electro-hydraulic controls for full face automation. ● Down to 4-second advance cycles thanks to powerful hydraulics. ● Shield design in 3D, FEM integrated.

Customized Design ● Seamless range for mining heights from 0.55 to 7.5 m (1.8 to 24.6 ft) with support capacities of up to 1750met- ric tonnes (1929 tons). ● Advanced design of critical parts prevents major fail- ures, costly underground repairs and unscheduled downtime. ● Easy maintenance, long intervals between overhaul and very long service life.

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