Caterpillar RM600, RM800 reclaimers

May 5, 2023
New units complement the RM400 and RM500B

Caterpillar has expanded its line of reclaimer/stabilizers with models RM600 and RM800. The 636-horsepower RM600 and 762-horsepower RM800 complement the 421-horsepower RM400 and 546-horsepower RM500B.

The System K rotor system adapts key components from the company’s cold planers. The system uses the same cold planer fastener-free, dual-taper toolholder and base block components. Exit and return-to-cut features simplify operation, save time, and ensure the machine maintains a consistent depth of cut, according to the company.

Two high-tensile, six-rib belts with automatic tensioning prevent slippage, while the rotor drive features a hydraulically actuated, heavy-duty clutch that does not require adjustment. Abrasion-resistant, high-strength alloys of the System K rotor can withstand tough, high-power applications, and the cutting tools are strategically placed to deliver ideal material sizing and homogeneous mixing results. The versatile rotor can be configured with bolt-on paddle toolholder protection for full-depth reclamation applications or wedge protection to reduce drag for soil stabilization.

The units can cut 96 inches wide at up to 20 inches deep. Advanced electronic controls plus automatic load control maintain rotor mixing depth and optimum machine speed. Adjusting the front and rear mixing chamber doors enables instant modification of material gradation, and an easy-to-read indicator on the touchscreen display informs the operator of door positions. A rear rotor chamber door float feature simplifies operation by allowing the operator to select the desired down pressure. RM600 and RM800 also offer bi-directional cutting capability.

Wheel positioning at the corners allows the units to navigate a 10.1-foot inside turning radius. Four steering modes—front only, rear only, crab, and coordinated—further enhance maneuverability. The Cat reclaimer/stabilizers have a four-post adjustable-height design capable of cross-slope cutting, offering up to + or - 12.5 percent (8 degrees) of slope on either side when working on uneven terrain or to maintain traction in challenging soil stabilization applications.

RM600, RM800 cab features

Controls are grouped by function, and a small handwheel provides precise steering. The operator can match machine speed and functions to gradation specification via the 10-inch color touchscreen displays and pushbutton controls.

The cab hydraulically slides side-to-side so the operator can see the front and sides of the machine. Floor-to-ceiling glass and an angle pane on the right-hand side provide a clear view to the work ahead and the leading edge of the cutting chamber.

Standard front- and rear-mounted cameras provide configurable guidelines on the touchscreen display. Two standard cameras mounted above the front and rear mixing chamber doors give operators visibility to obstructions and material gradation. Optional side-mount cameras provide views to each side of the machine.

Cat RM600 Specifications

  • Operating weight: 73,811 lb.
  • Power: 636 hp
  • Cutting width: 96 in.
  • Max cutting depth: 20 in.

Cat RM800 Specifications

  • Operating weight: 71,000 lb.
  • Power: 762 hp
  • Cutting width: 96 in.
  • Max cutting depth: 20 in.