Underground Grader

The market leading roadway maintenance machine

M4L Underground Grader

All of the latest Cougar grader technology packed into a low seam model with a total height of 1800mm.

M4H Underground Grader

Same technology as our M4L Grader, but taller for mid-to-high seam applications.

Drag to change angle

ENGINE EXPERTISE

Every MWM engine is assembled in-house by our expert engine builders, featuring genuine OEM components.

ENGINEERING

Our team has been designing and refining underground graders for decades.

INNOVATION

Already handling the next phase of mining challenges with proximity detection readiness.

COMMONALITY

Cougar Graders and Personnel Carriers utilise the same engine system to reduce customer component inventory.

Better roadways equal better operations 


Constant roadway maintenance with the assistance of a grader reduces wear & tear on mine assets, assists with roadway water management & reduces the risk of operator & passenger injuries.

Operational features

Constant roadway maintenance with the assistance of a grader reduces wear & tear on mine assets, assists with roadway water management & reduces the risk of operator & passenger injuries.

  • Surface off-highway proven components
  • Ample space for maintenance tasks
  • Bent beam for visibility
  • Proximity detection-ready

A grade above


The grader combines the lineage of surface grader hardware with cougar’s intellectual property to provide a compact underground high performing machine with a range of options.

  • 83 kw mwm 4.10 diesel engine system
  • 7.2 tonnes of blade downforce
  • Overall length of 10 metres
  • 12 foot moldboard

Learn More Headline

Download our grader specifications brochure to explore detailed technical data, key features, and performance insights designed for underground mining operations.