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    Caterpillar RM800 soil stabiliser: implications for Australian pavement engineers

    December 1, 2025|

    Reviewed by Joe Ashwell

    Caterpillar RM800 soil stabiliser: implications for Australian pavement engineers

    First reported on Roads & Infrastructure (AU)

    30 Second Briefing

    Caterpillar has launched the RM800, its largest soil stabiliser to date, targeting major infrastructure works where contractors are shifting away from Australia’s traditionally second-hand stabiliser fleet. The RM800 is designed for high-output road base recycling and in situ stabilisation, pairing large cutting width and depth with integrated power and control systems to manage variable subgrade conditions. For geotechnical and pavement engineers, the move signals greater availability of high-capacity, factory-supported plant for large corridor upgrades and heavy-duty pavement reconstructions.

    Technical Brief

    • RM800 is configured as Caterpillar’s largest soil stabiliser platform, sized for multi-lane corridor works.
    • Machine is targeted at major infrastructure programmes where long, continuous stabilisation passes are required.
    • Caterpillar is pivoting from smaller stabilisers to higher-output units specifically for tier-one road projects.
    • Launch responds to Australian contractors’ historic reliance on imported second-hand stabilisers for heavy pavements.
    • Factory-backed supply aims to reduce downtime and parts risk versus ageing, mixed-fleet second-hand machines.
    • OEM support is positioned to align with long-term framework contracts and multi-year road upgrade pipelines.
    • For geotechnical and pavement design teams, larger stabilisers enable thicker in situ treatment in fewer passes.
    • Similar high-capacity plant is likely to be specified on future PPP motorway and freight corridor reconstructions.

    Our Take

    Caterpillar features only sporadically in our 97 Infrastructure stories, so a dedicated Product/Projects piece suggests the company is pushing more actively into Australian civil and road-building fleets rather than just mining fleets.

    Within the 231 tag-matched Product/Projects items, most OEM coverage in Australia has focused on mid-sized contractors and council fleets, which likely makes this Caterpillar piece relevant for local government procurement as much as for major contractors.

    For Australia, OEMs that emphasise integrated machine and powertrain control in our recent Infrastructure coverage tend to be targeting Tier 4/Stage V-ready or telematics-heavy equipment, signalling that Caterpillar is positioning its offerings for stricter emissions and productivity monitoring on public works projects.

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    Prepared by collating external sources, AI-assisted tools, and Geomechanics.io’s proprietary mining database, then reviewed for technical accuracy & edited by our geotechnical team.

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