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Caterpillar RM-300 Rotary Mixer

The RM-300 combines superior performance and reliability to achieve the most demanding job specifications while maximizing machine uptime. With many enhanced features and options, the RM-300 is designed to work well in both full depth reclamation and soil stabilization applications.

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Overview &
Specifications

Features
& Benefits

Standard
Equipment

Optional
Equipment

Work Tools &
Attachments

C11 Engine with ACERT® Technology ACERT® Technology works at the point of combustion to optimize engine performance and provide low exhaust emissions. The C11 engine with ACERT® Technology provides clean burning power. Electronically controlled on-demand variable speed cooling fan provides the lowest overall noise levels and high ambient operation capability.

Cat® C11 Engine with ACERT® Technology The C11 engine provides a full-rated gross power (SAE J1995) of 261 kW (350 hp) at 1800 rpm with a torque of 1384 Nm (1024 lb/ft). The combination of large displacement and high torque allow the RM-300 to propel through the toughest materials

Mechanically-Actuated Electronically Controlled Unit Injection (MEUI) Controlled Unit Injection (MEUI) The MEUI fuel system is a unique system that combines the technical advancement of an electronic control system with the simplicity of direct mechanically controlled unit fuel injection. The MEUI system excels in its ability to control injection pressure over the entire engine operating speed range. These features allow the C11 to have complete control over injection timing, duration and pressure.

Multiple Injection Fuel Delivery Multiple injection fuel delivery involves a high degree of precision. Precisely shaping the combustion cycle lowers combustion chamber temperatures, which generates fewer emissions, optimizes fuel combustion; translating into more work output for your fuel cost.

C11 Cylinder Block The cylinder block is a one-piece, grey iron block that features generous ribbing for stiffness and heavy bearing bulkheads for rigidity and strength as the crankshaft turns. This new design supports the engine’s higher compression ratios and increases its power density. The incorporation of straight-thread, o-ring connection points reduces the loss of engine oil and fluids.

High Cylinder Pressures High cylinder pressures combined with tightly controlled tolerances promote extremely efficient fuel burn, less blow by and lower emissions.

Single Overhead Cam One single overhead cam is driven by a gear on the flywheel end of the engine. Placing the cam gear at the flywheel end significantly reduces noise and vibration. To reduce wear, a pendulum absorber is mounted at the front of the camshaft. Together these two features contribute to the long-life and durability of this engine.

Service, Maintenance and Repair Easier service, maintenance and repair is accomplished by monitoring key functions and logging critical indicators. Advanced electronic diagnostic capabilities are possible using Cat Electronic Technician.

Turbocharged and Air-to-Air Aftercooling (ATAAC) The turbocharged air-to-air aftercooling system provides high horsepower with increased response time while keeping exhaust temperatures low for long hours of continuous operation.

Air-to-Air Aftercooling Air-to-air aftercooling keeps air intake temperatures down and in concert with the tight tolerance combustion chamber components, maximizes fuel efficiency and minimizes emissions. New turbocharger, unique cross-flow head, single, rear driven, overhead cam and a more efficient intake manifold generate significant improvements in air flow. This generates significant improvements in efficiency and reduced emissions.

ADEM™ A4 Electronic Control Module The ADEM A4 electronic control module manages fuel delivery, valve timing and airflow to get the most performance per gallon (liter) of fuel used. The control module provides flexible fuel mapping, allowing the engine to respond quickly to varying application needs. It keeps track of engine and machine conditions while keeping the engine operating at peak efficiency.

Operator’s Station Ergonomic design emphasizes comfort, visibility and easy operation. Isolated operator’s station with heavy-duty rubber mounts reduce machine vibration transmitted to the operator. The optional hydraulically-assisted platform slides side-to-side to an infinite number of positions. A switch on the side console allows the operator to select any desired position for good visibility and comfort leading to increased productivity. The fully adjustable steering column and rotating seat are positioned to provide an optimal operating position. Machine controls are grouped and conveniently located to enhance operator productivity and reduce fatigue.

Hydraulically-Assisted Sliding Platform The hydraulically-assisted sliding platform allows the operator to position the platform to any desired position to provide good visibility to both sides of the machine. Platform can be accessed from either side of the machine.

Operator's Seat Comfortable and durable operator's seat has adjustable fore/aft position, bottom cushion height, suspension stiffness and flip-up arm rests. Seat and side control console rotates to seven positions to enhance operator comfort.

Operating Controls Controls are conveniently located for easy one-handed control while seated. Propel lever with center detent allows forward/reverse operation and variable machine speed.

Adjustable Steering Column Adjustable steering column offers telescoping and tilt features to provide a comfortable operating position for the operator.

Operational Controls All machine controls, switches and gauges are positioned to minimize operator fatigue and maximize productivity.

Instrumentation Clear instrumentation includes gauges for engine oil pressure, engine coolant temperature, hydraulic oil temperature, charging system voltage and fuel level.

Analog Gauges Large analog gauges display propel ground speed, engine rpm, engine hour meter and fault codes.

Electronic Monitoring System Electronic Monitoring System constantly monitors input signals from sensors and switches in various machine systems and alerts the operator if a problem does occur.

Load Control Selection Switch A load control selection switch controls propel speed manually or automatically by the ECM.

Rear Wheel Steering Control Standard rear wheel steering control allows operator to position rear wheels for maneuvering in tight quarters. Automatic four mode steering including a crab and coordinated position is optional.

Sliding Cab (Optional) The optional cab increases machine utilization, provides greater year-round comfort and offers reduced interior sound levels. The pressurized cab slides side-to-side and includes a rotating cloth seat, left and right side doors, tinted windows, front and rear windshield wipers, heater/defroster and air conditioning. Sound absorbing floor mat reduces sound and machine vibration transmitted to the operator.

Pressurized Iso-Mounted Cab Iso-mounted cab is pressurized to keep noise, dust and the elements out and comfort in.

Items Included with Cab Items included with cab are: rotating cloth seat, left and right side lockable doors, tinted glass, air conditioning, heater/defroster, dual front and rear windshield wipers and sound absorbing floor mat.

Additional Operator Comforts Additional operator comforts include two cup holders and a 12-volt power receptacle. The cab is also radio-ready and includes a power converter, antenna with cable, two speakers and a headliner location for mounting radio.

Exceptional Viewing Area The cab offers an exceptional viewing area to the front tire edge, mixing chamber and to the rear wheels.

Electronic Control Modules Reliable field-proven technology makes machine operation simple and self-diagnostics simplifies troubleshooting.

Field-Proven Technology Reliable field-proven technology provides maximum productivity and simplifies troubleshooting.

Electronic Control Modules (ECM) Electronic Control Modules (ECM) receives input signals from sensors in the engine, propel, steering and rotor drive systems which monitor current operating conditions.

Self-Diagnostics Self-diagnostics provides information for troubleshooting and alerts the operator of potential system problems.

Automatic Load Control Automatic load control adjusts propel speed so that engine speed does not drop below 1800 rpm. Machine always works at peak efficiency for maximum output.

Automatic Rotor Depth Control (Optional) Optional automatic rotor depth control provides consistent quality and performance.

Propel System Hydrostatic drive provides balanced tractive effort to each drive motor.

Propel Pump Propel pump provides balanced flow to the dual displacement front drive motors. Provides superior tractive effort in soft underfoot conditions.

Load Sensing System Load sensing system controlled by the ECM, matches propel speed to the load on rotor.

Two Speed Ranges Two speed ranges allow the machine to operate at either maximum torque to propel the machine through the toughest conditions or a faster speed for moving around the job site.

Variable Machine Speeds Infinitely variable machine speeds determined by the propel lever and speed control dial.

Flow Divider Control Valve Flow divider control valve provides equal hydraulic oil flow to each drive motor to increase tractive effort in slippery conditions.

Rear Wheel Drive (Optional) The optional rear wheel drive propel system features a dedicated propel pump to provide separate balanced hydraulic flow to both the rear drive motors. This system enables the operator to achieve superior tractive effort for soil stabilization applications that require maximum cutting depth and that are also high in moisture content.

Two Propel Pump system Two propel pump system: one pump is dedicated to drive the front wheels, while the second propel pump is dedicated to drive the rear wheels.

Tractive Effort Increased tractive effort for those tough soil or reclamation jobs.

Flow Divider Control Valve Flow divider control valve directs equal hydraulic flow to each rear wheel to provide all-wheel drive.

Four Wheel Drive Machine High torque large displacement motors on rear wheels makes this a true fourwheel drive machine.

Rear Tires Large rear tires with an aggressive tread and large footprint propels the machine easily in the most severe applications.

Rear Wheel Drive Rear wheel drive feature can be turned on by a switch on the operator’s console when maximum tractive effort is required.

Rotor Drive A direct-drive mechanical transmission drives the rotor and provides three rotor speeds for maximum performance in a variety of materials and cutting depths. Heavy-duty shear disc or optional torque limiter protects rotor drive components from torsional stress and shock loads.

Hydraulically Engaged Clutch, High Torque Mechanical Transmission and Drive Axle Hydraulically engaged clutch, high torque mechanical transmission and drive axle allows efficient and reliable transfer of engine power to rotor and is sized to handle tough cutting and deep mixing.

Rugged Drive Chains Rugged drive chains provide efficient, continuous power to the rotor. Single strand heavy-duty chain resists breakage.

Three Rotor Speeds Three rotor speeds for maximum performance in a variety of materials and cutting depths. First speed is used primarily for pulverizing the material. Second and third rotor speeds can be used as blending or mixing passes.

High capacity rotor driveshafts and maintenance-free universal joints.

Heavy-Duty Shear Disc Or Optional Torque Limiter Heavy-duty shear disc or optional torque limiter protects rotor drive components from torsional stress and shock loads.

Mixing Chamber Mixing chamber allows the rotor to move independently so that the capacity of the chamber actually increases in deeper cuts to allow better material mixing and excellent gradation. Machine weight is well distributed to provide stability in the cut for uniform depth control.

Mixing Chamber Mixing chamber allows the rotor to move independently so that the capacity of the chamber actually increases in deeper cuts to allow better material mixing.

Mid-Machine Rotor Mid-machine rotor uses total machine weight to help keep rotor steady in the cut for uniform depth control.

Bi-Directional Mixing Bi-directional mixing capability increases machine efficiency.

Breaker Bars Large heavy-duty breaker bars help achieve uniform sizing.

Hydraulically Adjustable Rear Door Hydraulically adjustable rear door for optimum control of gradation and material uniformity.

Hydraulically Adjustable Front Door (Optional) Optional hydraulically adjustable front door allows more precise sizing control when operating in the reverse direction.

Side Access Doors Side access doors enable quick and simple replacement of cutting tools on rotor ends.

Hydraulic Front Door (Optional) Optional front door is ideal for peak efficiency on soil stabilization, bio-remediation or mixing passes on asphalt reclamation.

Hydraulically Operated Front Door Hydraulically operated front door allows the operator to control the opening of the front door from the operator’s station.

Dual Hydraulic Cylinders Dual hydraulic cylinders offer increased lifting force and precise control of the front door.

Front Door Raises Parallel To Cutting Surface The front door raises parallel to the cutting surface to prevent the door from plowing material in harsh soil stabilization conditions.

Forward Or Reverse Operation Forward or reverse operation increases machine versatility in soil stabilization.

Visual Site Gauge Visual site gauge on rotor hood displays door position and allows the operator to precisely control the opening of the front door.

Rotor Options With a choice of two rotor options, the RM-300 can be configured for different applications and depth specifications. The universal rotor is intended primarily to pulverize asphalt layers. The soil rotor is intended primarily for soil stabilization.

Universal Rotor Designed primarily for use in asphalt reclamation, the universal rotor has 200 point-attack carbide-tipped tools and a triple-tree tool placement on the rotor ends.

200 Point-Attack Carbide-Tipped Tools 200 point-attack carbide-tipped tools are mounted in drive-in, knock-out bolt-on tool holders and arranged in a chevron pattern for maximum breakout force.

Breakaway Design Tool Holders Breakaway design tool holders allow for fast replacement without welding.

Kicker Paddles Kicker paddles placed on every stand-off improves mixing in soil stabilization and provides more efficient material movement in full depth reclamation.

Triple-Tree Tool Triple-tree tool placement on rotor ends cleans up loose material and reduces wear on drum when maneuvering in the cut.

Maximum Depth The universal rotors maximum depth is 457 mm (18").

Soil Rotor Designed primarily for use in soil stabilization, the soil rotor has 238 point-attack carbide-tipped tools.

238 Point-Attack Carbide-Tipped Tools 238 point-attack carbide-tipped tools are mounted in drive-in, knock-out weld-on tool holders and arranged in a chevron pattern for maximum breakout force.

Versatile Applications The versatile applications blends additives with cohesive, semi-cohesive or granular materials.

End Rings Replaceable end rings protect rotor mandrel from wear and are also hard-faced for extended service.

Maximum Depth The soil rotors maximum depth is 508 mm (20").

Serviceability The rotor hood tilts forward to allow access to the rotor and cutting tools. Ground level side access doors on the rotor hood provide convenient access for easy cutting tool removal and replacement. Hinged side access doors open wide for exceptional access to the engine and cooling system. Daily service points are accessible from ground level and are grouped on one side of the engine. Hinged service doors open wide for access to power train and rotor drive components.

Cooling Package Cooling package is a multi-row modular design, stacked in series for easy access for cleaning and service. A modular stacked cooling system provides more efficient cooling of individual systems and makes replacement and routine cleaning easier. Electronically controlled on-demand variable speed cooling fan provides the lowest overall noise levels and high ambient operation capability.

Hydraulic Rotor Hood Hydraulic rotor hood tilt rotates hood forward for convenient access to rotor for inspection and tool maintenance.

Service Doors Hinged service doors open wide on sides of engine, rotor hood and on top deck for access to power train and rotor drive components.

Rotor Drive Chains Self-lubricating rotor drive chains in sealed chain cases partially filled with oil.

Electronic Control Module (ECM) Electronic Control Module (ECM) monitors machine systems and provides self-diagnostics for operator or service personnel. Three warning levels alert operator to conditions on the machine that require attention. Encourages repair before major failure. Level One – a flashing gauge indicator and a flashing alert indicator light. Level Two – level one warning plus the warning action lamp flashing. Level Three – level two warning plus the warning action horn sounds.

Visual Indicators Visual indicators allow easy check of engine coolant, rotor axle and hydraulic oil level and air restriction indicator.

Hydraulic Test Ports Quick-connect hydraulic test ports simplify system diagnostics.

Ecology Drains Ecology drains provide an environmental method to drain fluids. They are included on the radiator, engine oil pan, hydraulic and fuel tank.

S•O•S Ports S•O•S ports allow for simple fluid collection of engine oil, engine coolant and hydraulic oil.

Hose Routing Secure hose routing with polyethylene routing blocks to reduce rubbing and increase service life.

Electrical System Nylon braided wrap and all-weather connectors ensure electrical system integrity. Electrical wiring is colorcoded, numbered and labeled with component identifiers to simplify troubleshooting.

Caterpillar Batteries Maintenance-free Caterpillar batteries are mounted on the side of the machine and are accessible from ground level. Cat batteries are specifically designed for maximum cranking power and protection against vibration.

Caterpillar Product Link System (CPLS) Machine is Product Link wire-ready. The Caterpillar Product Link System (CPLS) ensures maximum uptime and minimum repair costs by simplifying tracking of equipment fleets. Provides automatic machine location and hour updates. Can be obtained through your local Caterpillar dealer.