All three new machines use the Cat C18 ACERT meeting EPA Tier 4-Final/EU Stage IV emission standards. The high-horsepower C18, with an advanced turbo-charging and air-to-air after-cooling system, responds quickly to operating demands, keeping exhaust temperatures low and maintaining airflow for efficiency and reduced emissions.

Drive system/undercarriage
The PM820, PM822, and PM825 are hydrostatically driven by two variable-displacement propel pumps supplying oil to a variable-displacement motor at each track. piston-type drive motors automatically control displacement, providing torque for work and speed for maneuvering.
Cutting system
The rotor is equipped with three-piece, quick-release tool holders and carbide-tipped cutting bits arranged in a chevron pattern for maximum breakout force. Optional rotor systems are available. The cutting chamber design facilitates material flow, reduces wear, and provides flush-cutting capability.
Conveyor system
The conveyor belt is driven by a hydraulic motor that provides adjustable control of the loading conveyor to ensure proper discharge. A large chamber-discharge opening clears out the cutter box and effectively controls fine particles. An optional system uses a grease cylinder to adjust belt tension and tracking but a conventional adjusting-screw system also is available.
Cat Grade Control
All three can be equipped with the optional, integrated Cat Grade Control system, which is a 2D-capable/3D-ready grade-and-slope system that automatically controls a preset rotor depth and cross slope. The system can be enhanced for full 3D control with the addition of optional equipment.
Operator’s environment
The operator’s station features dual operating controls, upper-conveyor controls and rear- track steering controls. An ergonomic instrumentation layout designed for ease of use, and the touch-screen display is backlit for low-light operation, and easy-to-read gauges, function indicators, and warning indicators, as well as displaying video from optional remote cameras.
Optional equipment
Additional options for the new cold planers include a diamond-bit cutting drum, in-board averaging ski with position-sensing cylinder, high-pressure wash-down system, bucket trays for cutter bit storage, high-capacity water-tank refilling pump, and electric refueling pump.

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