PM820 Caterpillar PM820 Specifications & Technical Data (2017—2026)

Easy Service

Outstanding access to critical components and systems makes service and maintenance easier and faster. That keeps your machine where you need it: on the job.

Large Access Doors and Panels

Designed to facilitate efficient service, reducing labor costs and service time.Quick and easy maintenanceAccessible pumps and componentsPower hood opens to allow walk-in accessVisual indicators simplify routine service checks

C18 acert engine

Meets regional emission standards as required: U.S. EPA Tier 4 Final / EU Stage IV. Provides a gross power of 563 kW (755 hp). Automatic idle control function and multiple rotor speeds optimizes output to the demand on the engine, keeping operation smooth and efficient. High capacity cooling system keeps engine at ideal temperature for optimal fuel efficiency and lower emissions. Proven core engine design ensures reliability and quiet operation. Engine is iso-mounted to reduce noise and vibration.

Robust Rotor Chamber

Chamber optimizes material flow to promote thorough clean-out. Thicker steel in areas exposed to high abrasion enhances durability. Side plates are hydraulically adjustable with position-sensing cylinders, can be used as an averaging ski. Hydraulically adjustable moldboard applies optimal down-pressure to keep material contained for clean out and minimize required sweeping.

The Versatility You Need

Two available cutting widths. Cutting depth to 330 mm (13 in). Enhanced clearance for flush cutting. Three rotor speeds, electronically selectable during operation. High production and fine milling drums available. Optional Cat Grade Control keeps machine on target.

High Production Rotors

2.0 m (79 in), 2.2 m (88 in) or 2.5 (98.6 in) cutting widths. Cutting bits held in exclusive conical quick-release tool holders and arranged in a triple-wrap flight pattern. Large, replaceable carbide-faced loading paddles effectively move milled material onto collecting conveyor. Standard 15 mm (5/8 in) tool tip spacing is optimal for high production and reduced wear. Triple tree tool arrangement on rotor ends reduces wear on rotor when maneuvering in the cut. Premium carbide bits available. Optional Cat Diamond Bits provide cutting life up to 80 times longer than conventional carbide bits, decreasing overall fuel consumption and reducing machine wear.

Sensor Readings

Each sensor has five transducers; the high and low readings are discarded and the remaining three are averaged for a true average reading.

The high-capacity conveyors provide efficient removal of milled material and dust with outstanding discharge control.

A wide opening and seamless 850 mm (33.5 in) wide belt efficiently clears rotor chamberReversible for easy clean outOptional grease tensioner provides easy adjustment of belt alignment and tensionWater spray system provides lubrication and cools bits while helping to control dustSpray system fed by 3400 L (898 gal) onboard tank; tank can be filled from top deck ports, rear fill valve, side fill valve or optional refill pumpOptional additional water spray system provides maximum lubrication, cooling and dust suppressionOnboard winterization system utilizes compressed air to purge water lines

Vacuum System

Vacuum system ports to collecting conveyor housing and transition between collecting and loading conveyor to remove airborne particles. Augments dust suppression provided by water spray system. Discharges collected dust into the loading conveyor to facilitate removal from working area around machine. Maximizes dust removal capability when used with water spray system and optional additional water spray system.

Aluminum Covers and Vinyl Side Panels

Aluminum covers and vinyl side panels reduce spillage and help control dust. Seamless 850 mm (33.5 in) wide belt provides heavy duty, high speed discharge. Variable belt speed optimizes speed to material type and production rate. Reversible for easy clean out. The “Boost” feature provides a temporary surge in belt speed to help precisely place material. Additionally, the loading conveyor folds to reduce length for transport and swings 60 degrees from center position to the left or right.

Propel system

Robust propel system features two propel pumps and two propel circuits, diagonally opposed; each circuit drives the propel motors for two crawler tracks. Cross-flow traction control supplies dedicated hydraulic flow diagonally across machine to the tracks that grip. Automatic Load Control senses load changes on the rotor system load and adjusts propel speed to prevent stalls and optimize production.

Advanced Automated Features

Automatic Load Control senses load changes on the rotor and adjusts propel speed to prevent stalls and optimize production. Automatic plunge-cut feature ensures precise, repeatable starting cuts and reduces wear on machine (requires Cat Grade Control option). Ramp-in, Ramp-out cutting capability (requires Cat Grade Control option). Jump hold feature assists to clear obstacles.

Comfort and Control

Height-adjustable dual operating console is intuitive and comfortable. Optional power canopy can deploy or stow during machine operation; optional windscreen panels available. Touchscreen LCD display provides gauge cluster, operating information, remote camera feed, machine control and diagnostics; optional second and third display available to provide additional gauge or machine operation/control information. Optional suspension seats reposition for optimal visibility and comfort. Lockable storage provides secure area to stow personal items. 12-volt power receptacle.

Controls

Controls comfortably positioned for easy use. Large, backlit keypads are visible in all light conditions. Durable design tested to 1 million cycles. Lockable covers provide protection from vandalism.

Control Boxes

LCD color touchscreen display with soft keys is durable and visible in all light conditions. Intuitive interface is easy to understand and use. Supports multiple languages. Control boxes and sensors can be repositioned without reconfiguring settings. Full control over grade and slope can be attained from any control box.