The Wirtgen 4200 SM is a high-performance surface mining machine for operators and customers in large-scale surface mines, whose goal is an annual mining capacity in coal or soft rock of up to 12 million tons with a single machine.

The 4200 SM is a 200-plus-ton surface miner that stands nearly 22 ft. (6.7 m) tall excluding conveyor and cuts more than 13.5 ft. (4 m) wide.

Wirtgen’s mobile surface miners cutting, sizing and loading material in one pass achieve great savings in machinery and personnel costs, while allowing continuous refinement of pit drainage and haul patterns at the same time, according to the manufacturer.

The 4200 SM is available to customers in two different designs: one for use in various types of soft rock including, for example, coal, lignite, gypsum or limestone; and the other, as a powerful miner for hard rock, such as iron ore or bauxite.

Specifically, the 4200 SM has a cutting width of 13.78 ft. (4.20 m) and is capable of working at a maximum cutting depth of 32.7 in. (83 cm) in soft rock.

The heavy-duty machine is equipped with a 16-cylinder diesel engine from Cummins, making it the ideal candidate for a wide range of applications as its rated horsepower of 1,624 (1,210 kW) offers tremendous reserve capacity.

A two-stage conveyor system with 5.9-ft. (1.8 m) wide primary and discharge conveyors, and optional discharge conveyor lengths of 39 to 53.5 ft. (11.8 to 16.3 m), support the surface miner’s cutting performance of up to 4,000 tons (3,628 t) per hour. The conveyor’s large slewing angle of 180 deg, flexible height adjustment and variable conveyor belt speed ensure smooth loading of large haul trucks even in restricted space conditions.

For more information, visit www.wirtgenamercia.com.

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