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

  • Engine manufacturers meeting emissions deadlines
    February 10, 2012
    Engine manufacturers have had to jump through regulatory hoops in recent years, meeting requirements for diesels with ever cleaner exhaust emissions. When this programme was first proposed, many believed the final aims could not be achieved. However on January 1st 2011, the Tier 4 Interim/Stage IIIB emissions regulations will come into force in North America and Europe and all the major diesel manufacturers will have suitable products at the ready. The Tier 4 Interim/Stage IIIB emissions regulations require
    Read More
  • Material transfer grows in popularity
    June 18, 2012
    Material transfer vehicles (MTVs) have become more and more popular over the years, particularly for large paving projects. These machines can help reduce materials segregation issues and also allow a more even heat profile in the mat, for more homogenous compaction. Roadtec has long held a strong position in this segment, with its highly successful Shuttle Buggy machine, which continues to be improved. However Roadtec is also now facing increasing competition from rival firms offering their own machines
    Read More
  • ACEpro: Operator Friendliness Is Key to Enhanced Intelligent Compaction System
    December 18, 2024
    LANGENTHAL, Switzerland – Ammann has upgraded its advanced Intelligent Compaction system, ACEpro, to make it easier than ever for operators to access the built-in technology. The enhanced system is being integrated into Ammann ARP 75 and ARP 75 C Pivot-Steer Tandem Rollers.
    Read More
  • Advanced, low emission, fuel efficient earthmoving
    February 23, 2012
    Manufacturers are rolling out sophisticated machines for the European, North American and Japanese markets - Mike Woof reports. This year has been a pivotal period for the development of advanced, low emission earthmoving machines. During 2011 an array of manufacturers have introduced new models designed to comply with the latest Stage IIIB/Tier 4 Interim emissions regulations introduced for
    Read More

Highlighted Content