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RM 120X mobile impact crusher at full pace, with the discharge conveyor in motion and 4-bar rotor driving throughput.

/ Rubble Master · crushers

RM 120X: Mobile impactor

Crush different to dominate serious projects. Efficiency and the lowest cost per tonne. A high reduction ratio with the ease of maintenance you need to hold the throughput target.

/ overview

The RM 120X is Rubble Master’s largest mobile impactor, rated to 350 tph through a 1,160 × 820 mm inlet and built for operators who must keep crushing. A 4-bar rotor is driven directly by a John Deere diesel for primary and secondary applications, while the asymmetric hopper, RM Active Grid pre-screen and load-dependent feeder hold the feed rate. A touchscreen display and RM XSMART telemetry give you the control. X-series crushers are backed by Rubble Master's 5-year / 5,000-hour limited warranty on main structural components (conditions apply).

Applications: High-volume concrete, asphalt, construction waste and rock crushing for large recycling operations and quarry duty.

Also available to hire

/ features

What sets it apart.

  1. Asymmetric hopper

    A single-piece feed hopper that aligns slabs before the inlet and reduces bridging.

  2. RM Active Grid pre-screen

    Aggressive self-cleaning pre-screen bypasses fines to the main conveyor or a side conveyor.

  3. Load-dependent feeder

    The vibro-feeder self-regulates to engine load so production peaks don't choke the crusher.

  4. High reduction ratio

    A big 4-bar rotor and baffled impact plates produce well-graded, cubical product in one pass.

  5. Touchscreen HMI

    Refined controls and clear feedback let you troubleshoot with confidence from the display.

  6. XSMART telemetry

    Document performance, track tonnages and troubleshoot remotely from anywhere.

/ closer look

Inside the machine.

The RM Active Grid pre-screen on the RM 120X, aggressively bypassing fines to the main conveyor.
RM Active Grid pre-screen
Side profile of the RM 120X, the biggest mobile impactor in the RUBBLE MASTER lineup.
Side profile · biggest in the lineup
RM XSMART remote telemetry on a phone showing operational efficiency, performance data and remote troubleshooting.
XSMART remote telemetry

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/ enquiry

Enquire about the RM 120X

We'll be in touch with you as soon as possible.

/ next step

Tell us about the job.
We’ll spec the machine.

Material, throughput, transport, site conditions. A short conversation is faster than a brochure. You’ll talk to someone who’s spent their career around crushers.