Caterpillar introduces new rotary mixer

RM400 offers 19% more power, improved operator efficiency and increased production

Caterpillar has launched its new RM400 Rotary Mixer, which replaces the RM300 and offers many new features and enhancements including 19% more power, an enhanced operating environment, and better manoeuvreability.

The manufacturer said in a statement that these features help contractors achieve demanding job specifications in both full-depth reclamation and soil stabilisation applications. The machine delivers a 2.4m cutting width and weighs in at 23.5t.

Power comes from a Cat C9.3 engine, making 417hp, while standard all-wheel drive utilises four independent drive pumps for maximum torque while providing high traction and greater speed for moving around job-sites. The operating length of 9.56m is 44cm shorter than its predecessor, the RM300. The shorter length improves manoeuvrability in commercial zones, parking lots, and residential areas, while also enhancing visibility, said Cat.

A full left to right sliding cab enhances side-to-side viewing to the tyre edges and rotor cut lines for improved operator efficiency and increased production. Standard front and rear facing cameras viewed through a display in the cab provide good visibility, while optional side mounted cameras provide good sight lines along the machine for enhanced safety.

Additionally, optional cameras can be mounted in front and behind the rotor chamber. The front camera assists the operator when cutting close to obstacles such as manholes and curbs, while the rear camera provides a good view of the discharge material. Viewing these cameras from the operator’s station requires an additional touch screen display.

Hand-wheel steering offers simple control and good forward viewing, while a joystick controls the rear wheels when utilizing select modes for more precise control. A tablet sized LCD display keeps the operator informed of machine functions, including the front and rear door opening of the rotor chamber.

Three different rotor speeds help deliver the desired material gradation. An electronic controller keeps the rotor at the proper depth and the machine at a consistent speed to ensure optimal blending performance. The RM400 can be equipped with a water spray system in conjunction with an emulsion system to provide excellent versatility and time savings when additives are needed.

Four rotor options are available for a variety of applications. A universal rotor can be used for either full depth reclamation or soil stabiliaation and is equipped with 200 point-attack carbide-tipped tools. A soil rotor is used for a variety of mixing and stabilization applications and blends additives with semi-cohesive or granular materials and is equipped with 238 point-attack, carbide-tipped tools. The combination rotor is designed primarily for use in soil stabilisation applications in cohesive materials, but also works well for light asphalt reclamation. The combination rotor is equipped with 114 point-attack, carbide-tipped tools. A spade rotor is also available.


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