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The PM820 is a high-production, half-lane milling machine with a cutting width of 2010 mm (79.1 in) that performs controlled full-depth removal of asphalt and concrete pavements in a single pass.

Cat Specs

Cutting System

Milling Width
79.1 in
Maximum Milling Depth
13 in
Rotor Speeds
100 / 109 / 118 rpm
Number of Bits


Operating Weight
79653 lb
Transport Weight
71055 lb

Power Train

Rated Power
806 HP
Cat C18 twin-turbo
Maximum Travel Speed
3.7 mile/h
Maximum Milling Speed
328 ft/min

Service Refill Capacities

Hydraulic Tank
29.9 gal (US)
Engine Oil
17.2 gal (US)
Water Spray System Tank
898.2 gal (US)
Fuel Tank
292.7 gal (US)
Cooling System
27.5 gal (US)


Operating Length - Conveyor Up
47.64 ft
Height - Canopy
13.29 ft
Maximum Truck Clearance
15.94 ft
Minimum Right Cutting Radius
6.56 ft
Minimum Left Cutting Radius
6.56 ft
Conveyor Swing
60 degrees from center
Transport Length
40.78 ft
Transport Height
9.84 ft
Transport Width
8.27 in
Operating Width
10.2 ft