The surface miner is a mobile milling machine with a mechanically driven cutting drum. On Wirtgen machinery the drum is located between two sets of individually height adjustable crawler tracks, and a two- stage conveyor system used to directly load trucks.

Wirtgen surface miners cut, crush and load the material in one single pass. This process eliminates the need for drilling, blasting, loading and primary crushing. This means that one machine completes the job of many different pieces of equipment. The mining process thus becomes straightforward and economically efficient.

The Fleet

To complement the fleet of surface miners Global has a range of ancillary equipment and resources necessary to provide a stand-alone service.
Our fleet consists of:

  • Wirtgen 2500 Surface Miners
  • Wirtgen 4200 Surface Miners
  • Fully equipped service and maintenance trucks
  • Transportable site offices and amenities
  • Transportable workshops
  • Onsite parts stores and support trailers
  • Extensive spare parts warehouse storage
  • Fleet of Light vehicles

GCM was the first company in Australia to import and operate the Wirtgen 2500 Surface Miner. The 2500SM has a cutting depth of 0-600mm and a cutting width of 2500mm.

The machine requires only one operator and can be operated in either a windrowing configuration or conveyor mode.

The surface miner uses a mechanically driven cutting drum for the selective mining of minerals with unconfined compressive strengths of up to 80MPa.


GCM’s fleet also includes Wirtgen 4200 Surface Miners, which are the largest of the Wirtgen mining machines.

It has a two-stage conveyor system with a 1800mm wide primary discharge conveyor which supports the miner’s impressive cutting performance of up to 3,000 tonnes per hour.

The drum is 4200mm wide and the maximum cutting depth is 830mm.