Heavy Lift Fleet Build: Underground Giants Headed to Queensland

Three of the largest underground coal mobile machines head to work after being manufactured by Cougar Group in Tomago.

Two Longwall Chock Carriers (LWC) and one Dozer were recently manufactured by Cougar Group and shipped to an Australian customer.  All three machines have a payload capacity of 70 tonnes, making the machines some of the largest payload capacity mobile plant in underground coal mines.

The machines were purchased by a valued customer to conduct installation of their Longwall system from the surface to underground and will be subsequently used for future Longwall moves underground forming a vital part of their equipment fleet.

The 2x LWC and 1x Dozer builds demonstrate Cougar Group’s skill at manufacturing some of the largest, heavy-duty gear in underground coal."

Cougar’s IP Depth: The Critical Link to Productivity

Manufacturing the largest payload capacity machines in their class demonstrates Cougar’s ingenuity with key features that include:

  • Hydrostatic Drive – for optimal power efficiency and tractive effort.
  • Track-Type Dozer – low ground pressure.
  • Heavy Payload Capacity – IP designed structures and hydraulics.

Rounding Out the Fleet

The LWCs and Dozer were the final machines shipped in a large purchase that also included:

  • 10x MK8 Minecruiser Troops
  • 2x MK8 Minecruiser Utes
  • 1x M4H Grader


Cougar Group also supplies mine services FRAS pipe and multiple underground in-seam (UIS) gas drainage drill rigs to the same mine site. 

The large purchase of equipment and services on-site demonstrate Cougar Group’s ability to provide complete lifecycle solutions for mining customers. 

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