Skip to main content

Caterpillar is offering new mills and a recycler/stabiliser

Caterpillar is now offering updated milling machines and a new recycler stabiliser.
April 21, 2021 Read time: 2 mins
The new RM400 recycler/stabiliser replaces the earlier RM300 model

A series of updates have been introduced for the PM620, PM622, PM820, PM822 and PM825 half-lane cold planers. The PM620 and PM622 are powered by the proven Cat C18, delivering 470kW, while the larger PM820, PM822 and PM825 are powered by a C18 engine with a twin-turbo delivering 597kW. The engines meet the Tier 4 Final/Stage V emissions requirements.

One of the key upgrades is the improved LED lighting for night working. The wide-dispersion LED work lights are fitted as standard, while LED perimeter lights can also be added.

Milling performance is said to be optimised due to the integrated Cat GRADE with Grade and Slope system. This system includes automated features such as obstacle jump and programmable cut transitions. The machines can also be fitted with full 3D milling capabilities.

The new RM400 Rotary Mixer replaces the firms RM300 Rotary Mixer. Its redesigned drive system means that the new machine is actually 440mm shorter than its predecessor and combined with its steering modes, this allows for improved manoeuvrability. The machine delivers a 2.4m cutting width, weighs in at 23.5tonnes and offers better performance both for full-depth reclamation and soil stabilisation applications.

Caterpillar has upgraded milling machines from its 600 and 800 model ranges
Caterpillar has upgraded milling machines from its 600 and 800 model ranges

The machine is powered by a Cat C9.3 engine delivering 311kW, which meets  Tier 4 Final/Stage V emissions standards. All-wheel drive is provided by the four independent drive pumps, delivering high torque, traction and speed.

The sliding cab optimises the viewing to the tyre edges and rotor cut lines for the operator. Front and rear facing cameras are fitted as standard and are viewed through a display in the cab. Optional side mounted cameras are available for better sight lines along the machine and extra safety. In addition, cameras can be mounted in front and behind the rotor chamber.

Three different rotor speeds are fitted and an electronic controller keeps the rotor at the proper depth and the machine at a consistent speed. The RM400 can be equipped with a water spray system as well as an emulsion system for when additives are needed.

Four rotor options are available for a variety of applications: a universal rotor; soil rotor; combination rotor; and spade rotor. These allow the user to operate the machine in a wider array of applications.

For more information on companies in this article

Related Content

  • Caterpillar offers high performance, compact compactors
    January 28, 2014
    Caterpillar claims its new line-up of utility compactors offer a range of key upgrades. The CB22B, CB24B, CB24B XT, CB32B, CB34B, CB34B XW, CC24B and CC34B models are versatile compactors that share technical and performance features and compete in the 1.8-5tonne size range. Efficient compaction is said to be achieved due to better visibility, increased drum diameters, multiple frequency vibratory systems and optional ballast additions on some models. The B-Series compactors are equipped with C1.5 and C2.2
  • Milling versatility from Roadtec
    April 12, 2016
    Roadtec is now developing its RX600eLR milling machine as a more versatile unit for the 2m class. The machine has been unveiled in prototype form, with full testing set to commence shortly. A key development for the RX600eLR is that the drum is driven by two hydrostatic motors, with one mounted on each side.
  • New US pavers coming to market
    July 7, 2022
    New US asphalt pavers are now coming to market
  • Versatile tools for road reclamation
    January 25, 2023
    A notable development in the off-highway equipment sector is the development of new generation road reclamation tools