Caterpillar has introduced three new cold planer models that the company says are capable of controlled, full-depth removal of asphalt and concrete pavements in a single pass.
The new PM820, PM 822 and PM825 are each powered by a Cat C18 engine producing 755 horsepower. The turbocharged C18 features an air-to-air after-cooling system with a variable-speed fan. Cat says the engine “responds quickly to operating demands while keeping exhaust temperatures low and maintaining needed airflow.”
The half-lane milling machines weigh between 79,630 to 82,650 pounds and offer cutting widths between 79 and 98.6 inches.
Each machine features three cutting settings controlled from a keypad. Cat says these settings match rotor speed/torque to the operating conditions at hand.
The rotor meanwhile is equipped with three-piece quick-release tool holders and carbide-tipped cutting bits arranged in a chevron pattern. Other rotor systems are available options along with Cat Diamond Bits which the company says are sharper and last up to 80 times longer than conventional carbide bits.
