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The PM622 is a high-production, half-lane milling machine with a cutting width of 2235 mm (88 in) that performs controlled full-depth removal of asphalt and concrete pavements in a single pass.

Cat Specs


Operating Weight
74737 lb
Transport Weight
66139 lb

Cutting System

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

Power Train

Rated Power
636 HP
Cat C18
Maximum Travel Speed
3.7 mile/h
Maximum Milling Speed
328 ft/min

Service Refill Capacities

Hydraulic Tank
29.9 gal (US)
Diesel Exhaust Fluid (DEF) Tank
12.4 gal (US)
Engine Oil
17.2 gal (US)
Cooling System
22.5 gal (US)
Water Spray System Tank
898.2 gal (US)
Fuel Tank
292.7 gal (US)


Operating Length - Conveyor Up
47.64 ft
Height - Canopy
13.29 ft
Maximum Truck Clearance
15.94 ft
Minimum Right Cutting Radius
5.91 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
8.89 in
Operating Width
10.2 ft