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Crush Different

The RM 120X is the first-of-its-kind mobile impact crusher featuring the RM NEXT philosophy. RM NEXT elevates the easiest-to-use material processing equipment to a new simplicity, safety, and performance level. RM’s refined machine controls are designed to give you the most out of your crusher. Make light work out of daily maintenance. Troubleshoot issues faster and with confidence. And put more material on the ground.


30% More Capacity

High-performance pre-screen options to increase your total production capacity.


Unmatched Usability

Improved usability and ergonomics enable even crushing novices to use a machine built for producers.

Safety First Design

Safety is the most important part of the RM 120X mobile crusher so that you can trust your guys around the machine.

Designed for Those Who Must Keep Crushing

Large feed opening. On-board 5' x 12' screen attachment. Pre-screening option to boost production up to 30%. Multiple rotor speeds. Hydraulically adjustable apron. Built with the simplicity required to produce day in and day out.

Fewer Blockages

The RM Release System allows operators to deal with blockages without leaving their cab.


Easy to Adjust

Simple and fast crushing chamber geometry adjustments.

Easy Access

Crusher box can be opened quickly and easily.



Built With Operators, For Operators

The RM 120X advanced safety and convenience features are designed to assist you with the most burdensome parts of crushing.

Radio remote control

Total Crusher Control

All functions are on your radio remote control.

Operator Assistance

Instant visual response on crushing performance, automated feed control and emergency machine shutoffs.

Easy Troubleshooting

Fault codes with easy to understand on-board resolutions.


Like every RUBBLE MASTER, the RM 120X is designed to be the safest crusher in its class. The low center of gravity, ground-based service and a full radio remote controlled operation.

Ground-Based Service

Makes light & safe work out of your dailies.

Simple Controls

Intuitive operations with no complicated settings.

Shut Down Procedures

Machine & operator damage prevention through constant machine monitoring.


Changes as fast as your job requirements.

Move Anywhere, Anytime

Experience the freedom of folding up your machine and going anywhere you want. The RM 120X, like all RUBBLE MASTER crushers, was designed with mobility in mind making it easy to move. 

Easy to Mobilize

Can be moved easily from site to site.

Single move

Crusher and screen attachment can  be moved on one trailer.

15 Minutes

from trailer to crushing.

Diesel-Electric Drive

RUBBLE MASTER has been utilizing diesel-electric drives for its mobile crushers since our beginning in 1991. This well-proven system offers many benefits over conventional diesel-hydraulic drives - most notably its significant lower fuel consumption and surprisingly low noise emissions.

Less Fuel Burn

More efficient drive than conventional diesel-hydraulic crushers.

Works Well in Extreme Temperatures.

No overheating in summer, no heating-up in winter.

Less than 30 gal

Small hydraulic system to operate auxiliary cylinders and tracks.

Video Gallery

RM 120X Crushing Concrete Producing a 1½"- spec material in a single pass
RM 120X Animation Check out how the RM 120X works on the inside.
RM 120X Crushing Mixed C&D Waste Producing a ¾- base material
RM 120X Walk-Around Video Join us on a tour around a fully-loaded RM 120X Mobile Impact Crusher. Take a close-up look at all the new features.

RM 120X Specs

Capacity 350 tph 385 TPH
Inlet opening 1,160 x 820 mm 46" x 32"
Crusher unit 4-bar rotor 4-bar rotor
Feed unit 4 m³ 5.2 yd³
Feed unit (extended) 5 m³ 6.5 yd³
Prescreen Grizzly (standard) 1,560 x 910 mm 5.3 x 3 ft
Active Prescreen (optional) 2,000 x 1,050 mm 6.5 x 3.5 ft
Screen-box 1,480 x 3,708 mm 5 x 12 ft
Engine 298 kW 400 HP
Drive diesel-electric diesel-electric
Transport dimension 16,180 x 2,990 x 3,600 mm 52‘10” x 9`11” x 10’6“
Weight 44,000 kg 95,000 lbs
Dust suppression system Dust suppression system
Engine compartment light Engine compartment light
Hammer changing device Hammer changing device
Hydraulic folding return conveyor Hydraulic folding conveyors
Magnetic separator Magnet
Radio remote control Radio remote control
RM Release System RM Release System
Continuous track & crush Continuous Track & Crush
5 Year Limited Warranty
Compare Models Mobile Impact Crushers
Inlet opening
Transport dimension
RM 120X
Impact Crusher
350 tph 385 TPH
1,160 x 820 mm 46" x 32"
16,180 x 2,990 x 3,600 mm 52‘10” x 9`11” x 10’6“
44,000 kg 95,000 lbs
learn more
RM 100GO! Compact Crusher RM 100GO!
Impact Crusher
250 tph 275 TPH
950 x 700 mm 37" x 28"
14,700 x 2,860 x 3,155 mm 48'3" x 9'5" x 10'5"
33,600 kg 74,500 lbs
learn more
RM 90GO! Compact Crusher RM 90GO!
Impact Crusher
180 tph 200 TPH
860 x 650 mm 34" x 25"
13,470 x 2,550 x 3,050 mm 44'2" x 8'5" x 10'
28,400 kg 62,500 lbs
learn more
RM 70GO! Compact Crusher RM 70GO! 2.0
Impact Crusher
150 tph 165 TPH
760 x 600 mm 30" x 23"
13,300 x 2,360 x 3,100 43'8" x 7'9" x 10'2"
24,200 kg 53,400 lbs
learn more

What our customers are saying

"Much more user friendly. The usability, the access to everything. Everything is readily available and there is no safety that you are risking with a RUBBLE MASTER. They designed this thing to be as userfriendly as it can be. My guys thanked me time and time again that we have bought this one because it is so much easier on them."

Bryce Swaim, BTS Equipment

Talk to an Expert

Since 1991, RUBBLE MASTER has brought numerous innovations to the market. We’re crushing & screening experts and work closely with contractors and aggregate producers world-wide.

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