New | 18M3 Motor Grader

The 18M3 builds on the success of the 16M and offers additional power, a wider moldboard and the possibility to use a more aggressive blade angle, making it an ideal fit for mining operations that run 172-tonne (190-ton) or smaller trucks. The 18M3 enhances operational efficiencies by increasing coverage and reducing the number of passes required to complete the width of the road in certain applications. The 18M3 includes features that provide large benefits on operating cost reduction, uptime & performance improvements as well as enhanced safety.

Engine
Base Power (1st gear) - Net304 hp
Engine ModelCat® C13 ACERT™ VHP
Bore5.1 in
Stroke6.2 in
Speed @ Rated Power2,000 rpm
Base Power (1st gear) – Net (metric)309 hp
EmissionsTier 2/Stage II/Japan 2001 (Tier 2) Equivalent Emission Standards
VHP Range – Net227-266 kW (304-357 hp)
Torque Rise: Tier 4/Stage IV/Japan 2014 (Tier 4 Final)40%
Torque Rise: Tier 3/Stage IIIA/Japan 2006 (Tier 3) Equivalent38%
VHP Range – Net (metric)227-266 kW (309-362 hp)
Torque Rise: Tier 2/Stage II/Japan 2001 (Tier 2) Equivalent38%
Maximum Torque ISO 9249: Tier 4/Stage IV/Japan 2014 (Tier 4 Final)1306 lbf-ft
Maximum Torque ISO 9249: Tier 3/Stage IIIA/Japan 2006 (Tier 3) Equivalent1270 lbf-ft
Maximum Torque ISO 9249: Tier 2/Stage II/Japan 2001 (Tier 2) Equivalent1270 lbf-ft
Derating Altitude: Tier 4/Stage IV/Japan 2014 (Tier 4 Final)12500 ft
Derating Altitude: Tier 3/Stage IIIA/Japan 2006 (Tier 3) Equivalent12176 ft
Derating Altitude: Tier 2/Stage II/Japan 2001 (Tier 2) Equivalent12973 ft
Displacement763 in3
Number of Cylinders6
Standard – Fan Speed: Maximum1,450 rpm
Standard – Fan Speed: Minimum550 rpm
Standard – Ambient Capability122 ° F
Optimized VHP Range – Net227-266 kW (304-357 hp)
Weights
Operating Weight - Typically Equipped74324 lb
Weights Tier 4 Final/Stage IV/Japan 2014 (Tier 4 Final)*
Gross Vehicle Weight – Typically Equipped: Total74324 lb
Gross Vehicle Weight – Typically Equipped: Front Axle20494 lb
Gross Vehicle Weight – Typically Equipped: Rear Axle53830 lb
Gross Vehicle Weight – Base**: Total72298 lb
Gross Vehicle Weight – Base**: Front Axle19837 lb
Gross Vehicle Weight – Base**: Rear Axle52461 lb
Gross Vehicle Weight – Maximum Tested: Total84877 lb
Gross Vehicle Weight – Maximum Tested: Front Axle26125 lb
Gross Vehicle Weight – Maximum Tested: Rear Axle58753 lb
Note**Base operating weight calculated on standard machine configuration with 23.5R25 tires, full fuel tank operator and rops cab.
Moldboard
Blade Width18.0 ft
Height31 in
Thickness1 in
Arc Radius16.3 in
Throat Clearance5 in
Cutting Edge – Width10 in
Cutting Edge – Thickness1.4 in
End Bit – Width6 in
End Bit – Thickness0.75 in
Blade Pull* – Base GVW47216 lb
Blade Pull* – Maximum GVW52878 lb
Down Force – Base GVW34008 lb
Down Force – Maximum GVW43861 lb
Width18 ft
Note*Blade pull calculated at 0.9 traction coefficient, which is equal to ideal no-slip conditions, and Gross Machine Weight.
Dimensions (Approximate)
Height – Top of Cab147.5 in
Height – Front Axle Center29.9 in
Length – Between Tandem Axles72.5 in
Length – Front Axle to Moldboard120.7 in
Length – Front Axle to Mid Tandem290 in
Length – Front Tire to Rear of Machine (includes tow hitch)417 in
Length – Counterweight to Ripper474.4 in
Ground Clearance at Rear Axle16.7 in
Height to Top of Cylinders122.6 in
Height to Exhaust Stack141.1 in
Width – Tire Center Lines106.4 in
Width – Outside Rear Tires134.3 in
Width – Outside Front Tires134.3 in
Operating Specifications
Top Speed – Forward32.1 mph
Top Speed – Reverse25.3 mph
Turning Radius (outside front tires)30.5 ft
Steering Range – Left/Right47.5°
Articulation Angle – Left /Right20°
Forward – 1st2.8 mph
Forward – 2nd3.8 mph
Forward – 3rd5.5 mph
Forward – 4th7.6 mph
Forward – 5th11.8 mph
Forward – 6th16.0 mph
Forward – 7th22.0 mph
Forward – 8th32.1 mph
Reverse – 1st2.2 mph
Reverse – 2nd4.1 mph
Reverse – 3rd6.0 mph
Reverse – 4th9.3 mph
Reverse – 5th17.4 mph
Reverse – 6th25.3 mph
NoteCalculated with no slip and 23.5R25 L-3 tires.
Service Refill
Fuel Capacity131 gal
Cooling System18.5 gal
Hydraulic System – Total38.6 gal
Hydraulic System – Tank18.5 gal
DEF Tank4.2 gal
Transmission/Differential/Final Drives26 gal
Engine Oil9.5 gal
Tandem Housing (each)34 gal
Front Wheel Spindle Bearing Housing0.24 gal
Circle Drive Housing2.6 gal
Power Train
Forward/Reverse Gears8 Forward/6 Reverse
TransmissionDirect drive, power shift, countershaft
Brakes – ServiceOil-actuated, oil disc
Brakes – Dynamic Brake Torque per Wheel27069.27 lbf-ft
Brakes – ParkingSpring applied, hydraulically released
Brakes – SecondaryOil-actuated, oil-disc
Hydraulic System
Circuit TypeElectro-hydraulic load sensing, closed center
Pump TypeVariable piston
Pump Output*74 gal/min
Maximum System Pressure3590 psi
Standby Pressure856 psi
Note*Pump output measured at 2,150 rpm.
Frame
Drawbar – Width3 in
Circle – Diameter71.7 in
Circle – Blade Beam Thickness2 in
Drawbar – Height8 in
Front Frame Structure – Thickness0.6 in
Front Frame Structure – Height18.1 in
Front Frame Structure – Width14.0 in
Front Axle – Height to Center26.4 in
Front Axle – Wheel Lean18° Left/17° Right
Front Axle – Total Oscillation per Side35°
Blade Range
Circle Centershift – Right22 in
Circle Centershift – Left27.2 in
Moldboard Sideshift – Right31.1 in
Moldboard Sideshift – Left29.1 in
Maximum Blade Position Angle65°
Blade Tip Range – Forward40°
Blade Tip Range – Backward
Maximum Shoulder Reach Outside of Tires – Right103 in
Maximum Shoulder Reach Outside of Tires – Left103 in
Maximum Lift above Ground15.7 in
Maximum Depth of Cut18.5 in
Standards
BrakesISO 3450: 2011
ROPS/FOPSISO 3471: 2008/ISO 3449: 2005
SoundISO 6394: 2008/ISO 6395: 2008/ISO 6396: 2008
SteeringISO 5010: 2007
Ripper
Shank Holder Spacing – Minimum17.5 in
Ripping Depth – Maximum17.8 in
Ripper Shank Holders7
Penetration Force30311 lb
Pryout Force43700 lb
Machine Length Increase, Beam Raised63.4 in
Shank Holder Spacing – Maximum20 in
Tandems
Height25.5 in
Width9.3 in
Sidewall Thickness – Inner0.9 in
Sidewall Thickness – Outer0.9 in
Drive Chain Pitch2.5 in
Wheel Axle Spacing72.5 in
Tandem Oscillation – Front Up15°
Tandem Oscillation – Front Down25°
Variable Power Tier 4 Final/Stage IV/Japan 2014 (Tier 4 Final), Tier 3/Stage IIIA/Japan 2006 (Tier 3) Equivalent or Tier 2/Stage II/Japan 2001 (Tier 2) Equivalent Emission Standards – Net
Gear: Forward – 1st304 hp
Gear: Forward – 2nd304 hp
Gear: Forward – 3rd311 hp
Gear: Forward – 4th321 hp
Gear: Forward – 5th327 hp
Gear: Forward – 6th337 hp
Gear: Forward – 7th342 hp
Gear: Forward – 8th357 hp
Gear: Reverse – 1st304 hp
Gear: Reverse – 2nd304 hp
Gear: Reverse – 3rd-6th311 hp
Variable Power Tier 4 Final/Stage IV/Japan 2014 (Tier 4 Final), Tier 3/Stage IIIA/Japan 2006 (Tier 3) Equivalent or Tier 2/Stage II/Japan 2001 (Tier 2) Equivalent Emission Standards – Metric
Gear: Forward – 1st309 hp
Gear: Forward – 2nd309 hp
Gear: Forward – 3rd315 hp
Gear: Forward – 4th325 hp
Gear: Forward – 5th332 hp
Gear: Forward – 6th341 hp
Gear: Forward – 7th347 hp
Gear: Forward – 8th362 hp
Gear: Reverse – 1st309 hp
Gear: Reverse – 2nd309 hp
Gear: Reverse – 3rd-6th315 hp
Optional Tire Arrangements
Wheel Group: 19.5×25 MPTires: 23.5R25 Michelin XLDD 2 Star L5

You measure profitability by the ore you produce – and the more cost effectively you do that, the more successful you are. While drills, draglines, loaders and haul trucks are responsible for producing ore, motor graders have a direct impact on how productively these machines can operate – in particular in their role in haul road maintenance.

  • 18 Foot Moldboard – The 18M3 includes a standard 18 foot moldboard and straight 10 inch by 1 3/8 inch cutting edge, which allows the operator to increase coverage by 12.5% compared to a 16 foot moldboard. Also the operator can us a more aggressive blade angle and still be able to deposit the windrow away from the tires to protect tire life. The use of a more aggressive blade angle results in reduced load on the machine and the ability to better maintain ground speed for enhanced performance.
  • 18M3 Power Levels and Optimized Variable Horse Power (VHP) – Compared to the 16M3, the 18M3 has on average 5% more power. The additional power combined with the 18 foot moldboard and proper weight balance provides the best combination of performance and coverage. The Optimized Variable Horse Power (VHP) is designed to provide the ideal amount of power in all gears to efficiently perform diverse motor grader applications while protecting structure and drive train components.
  • Machine Balance – With optimized combination of weight and balance the 18M3 delivers enhanced traction and the ability to keep ground speed, especially when carrying a large load on the board.
  • Simple, Operator Friendly Emissions Technology – The 18M3 is available with three variations of the C13 engine with ACERT™ Technology. One meets U.S. EPA Tier 4 Final / EU Stage IV / Japan 2014 (Tier 4 Final) emissions standards and is required for sale in higher regulated countries. The other options will be capable of meeting Tier 2 / Stage II / Japan 2001 (Tier 2) equivalent emission standards or Tier 3 / Stage IIIA / Japan 2006 (Tier 3) equivalent emission standards, depending on the emission standards of the specific country. Emissions reduction technology on the 18M3 Motor Grader is designed to be transparent, with no action required from the operator.
  • Rear Ripper / Scarifier – Made to penetrate tough material fast and rip thoroughly for easier movement with the moldboard. The 18M3 includes a standard ripper with three shanks with the ability to add four more for additional versatility.
  • Comfort and Control – The multi-color / touch screen Information Display is the operator’s gateway to monitoring machine performance, a convenient way of modifying machine parameters to tailor performance to the current task and access the service information for initial troubleshooting.
  • Monitor, Manage, and Enhance Job Site Operations – Cat Product Link™ Elite is deeply integrated into your machine, helping you take the guesswork out of equipment management. Easy access to timely information like machine location, hours, fuel usage, idle time and event codes via the online VisionLink® user interface can help you effectively manage your fleet and lower operating cost.

High mechanical availability is one of your top concerns. The 18M3 helps reduce downtime and operating cost through improved serviceability, fuel economy and reduced maintenance. Major components are modular in design, so most can be removed and reinstalled without disturbing other components.

  • Use Less Fuel – Engine Economy (ECO) Mode improves fuel economy by reducing high idle engine speed while maintaining machine power. ECO Mode controls the high engine idle speed (capped at 1,900 rpm in working gears) to ensure the engine is performing as efficiently as possible with respect to fuel consumption. ECO Mode could provide significant fuel consumption savings especially in operations that are typically run at light to moderate loads, high idle and gear usage between 3R to 5F.
  • Engineered for Maximum Production and Service Life – The center shift section of the front frame is made of heavy duty steel casting which improves stress distribution to this high load area for enhanced durability. The rear frame structure is lengthened to provide easy service access to components in the engine enclosure as well as improve machine balance. Front axle steering cylinder has been designed to enhance durability and hydraulic hoses have been routed to improve reliability.
  • Standard Front Axle Guard – A front guard helps protect the front axle from rocks or other debris that could damage the axle or its components.
  • Standard Transmission Guard – The transmission guard provides a steel protection from ground debris.
  • Ease of Maintenance – The modular cooling package makes for simple removal and installation of components on the cooling system which reduces service time. Engine enclosure doors provide complete and easy access to the engine without the impediment of any enclosure post. Also, extended maintenance intervals reduce the number of touches and downtime.
  • Protecting Your Asset – Ok to Start and critically low fluid monitoring systems help prevent critical components from damage when low fluid levels are present. All information is available via the Information Display within the cab, and diagnostic codes are logged.

You consider the safety of your workers a top priority, and we’re doing our best to help you meet your safety goals. Caterpillar considers the safety of everyone in, on or around Cat equipment when developing new products or enhancing safety features for existing products. The 18M3 has numerous safety features such as but not limited to:

  • Access to Tandem
  • Light Emitting Diode (LED) Enclosure Service Lights
  • Seat Belt Indication
  • Fire Suppression Ready System
  • Rearview Camera
  • Access Platform – optional
  • Service Access Platform – optional

Your local Cat dealer is committed to helping you succeed, by ensuring you have the right machine for the job, making parts available, and providing you with versatile work tools.

Standard Equipment

OPERATOR ENVIRONMENT
  • Adjustable electric arm rest
  • Adjustable wrist rest
  • Air conditioner with heater
  • Air horn
  • Articulation, automatic Return-to-Center
  • Centershift pin indicator
  • Coat hook
  • Cup holder
  • Display, digital speed and gear
  • Doors, left and right side with wiper
  • Gauges (analog) inside the cab (includes fuel, articulation, engine coolant temp, engine RPM, and hydraulic oil temp)
  • Gauges, machine level
  • Information display touch screen
  • Joystick gear selection
  • Joystick hydraulic controls for implements, steering, transmission
  • Ladders, cab, left and right side
  • Lights, left and right side lights
  • Lights, night time cab
  • Meter, hour, digital
  • Mirror, inside rearview, wide angle
  • Power port, 12V
  • Radio ready, entertainment
  • ROPS cab, sound suppressed, less than 73 dB(A) ISO 6394 (70% fan speed)
  • Seat, cloth-covered, comfort air suspension
  • Storage compartments
  • Throttle control, electronic
POWER TRAIN
  • Air cleaner, dual stage dry type radial seal with service indicator through messenger and automatic dust ejector
  • Air-to-air after cooler (ATAAC)
  • Auto Diff Lock
  • Belt, serpentine, automatic tensioner
  • Brake wear indication
  • Brakes, oil disc, four-wheel, hydraulic
  • Consistent power to ground
  • Critically Low Fluid Level Monitoring System
  • Differential, lock/unlock
  • Drain, engine oil, high speed
  • Electronic over speed protection
  • Engine ECO Mode: Tier 4 Final/Stage IV/Japan 2014 (Tier 4 Final) and Tier 2/Stage II/Japan 2001 (Tier 2) equivalent emission standards
  • Engine, compression brake
  • Ether starting aid
  • Fuel tank, fast fill, ground level
  • Fuel-water separator
  • Hydraulic Demand Fan
  • Muffler, under hood (Tier 2/Stage II/Japan 2001 (Tier 2) equivalent and Tier 3/Stage IIIA/Japan 2006 (Tier 3) equivalent emission standards
  • OK-to-Start
  • Optimized VHP
  • Parking brake – multi disc, sealed, oil-cooled
  • Priming pump, fuel
  • Rear axle, modular
  • Sediment drain, fuel tank
  • Three variations of the C13 engine with ACERT Technology. One meets U.S. EPA Tier 4 Final/EU Stage IV/Japan 2014 (Tier 4 Final) emission standards and is required for sale in higher regulated countries. The other options are capable of meeting Tier 2/Stage II/Japan 2001 (Tier 2) equivalent or Tier 3/Stage IIIA/Japan 2006 (Tier 3) equivalent emission standards.
  • Transmission, 8F/6R, power shift
  • VIMS no telematics
GUARDS
  • Front axle cylinder guard
  • Transmission guard
ELECTRICAL
  • Alternator, 150 ampere, sealed
  • Batteries, maintenance free, heavy duty, 1,400 CCA
  • Breaker panel
  • Electrical system, 24V
  • Lights: brake, reversing, roof-mounted roading, stop and tail (LED), work front
  • Product Link
  • Starter, electric, heavy duty
SAFETY
  • Alarm, back up
  • Ground level engine shutdown
  • Hammer (emergency exit)
  • Horn, electric
  • Lockout, hydraulic implement for roading
  • Operator not present monitoring system
  • Paint, glare reducing – top of front frame, rear enclosure and ripper cylinders
  • Rearview camera
  • Seat belt indicator
  • Seat belt, retractable 76 mm (3 in)
  • Secondary steering
  • Windows, laminated glass: – Fixed front with intermittent wiper – Door with intermittent wipers (two)
  • Windows, tempered: – Left and right side wipers – Rear with intermittent wiper
  • Light, LED, warning strobe
  • Lights front LED
  • Lights, front headlights high
  • Lights, front headlights low
  • Mounting, for warning light
  • Service lights
  • Working lights Halogen
  • Working lights LED
OTHER STANDARD EQUIPMENT
  • 3-bolt blade bracket
  • AccuGrade ARO
  • Accumulators, blade lift
  • Brake accumulators, dual certified
  • Cat Grade Control Cross Slope
  • CD ROM Parts Book
  • Clutch, circle drive slip
  • Cutting edges, flat DH-2 steel: – 254 mm × 35 mm (10 in × 1.4 in) – 19 mm (3⁄4 in) mounting bolts
  • Doors (four), engine compartment, (two left, two right hand) locking
  • Doors, two service, left and right side
  • Drawbar – six shoe with replaceable wear strips
  • End bits, 16 mm (5⁄8 in) DH-2 steel, 19 mm (3⁄4 in) mounting bolts
  • Fast fill fuel 567.8 L/min (150 gpm)
  • Fluid check
  • Frame, articulated, with safety lock
  • Hydraulics, load-sensing
  • Metallic fuel tank, 496 L (131 gal)
  • Metallic DCM wear strips
  • Modular cooling package
  • Moldboard: – 5.5 m × 787 mm × 25 mm (18 ft × 31 in × 1 in) – Hydraulic side shift and tip
  • Radiator, two cleanout access doors
  • Rear bumper
  • Rear tandem access steps and hand bars
  • S·O·S ports: engine, hydraulic, transmission, coolant
  • Tandem walkway
  • Top adjust circle wear strips
  • Fire suppression ready
  • Ripper, rear
  • Push block, counterweight
WORK TOOLS/G.E.T.
  • 5.5 m (18 ft) blade with flat cutting edge 254 mm × 35 mm (10 in × 13⁄8 in)
TIRES, RIMS, AND WHEELS
  • A partial allowance for tires on 597 mm × 609.6 mm (23.5 in × 24 in) multi-piece rims is included in the base machine price and weight
FLUIDS
  • Extended Life Coolant to –35° C (–31° F)

Optional Equipment

OPERATOR ENVIRONMENT
  • Comfort package
  • Heated door
  • Mirrors high visibility
  • Mirrors, outside heated 24V
  • Mirrors, outside mounted
  • Seat heated
  • Seat heated/ventilated
  • Windows cleaning platform and ladders left-right hand side
POWER TRAIN
  • Transmission, autoshift
GUARDS
  • Debris guard
  • Rear fenders
  • Sound suppression, engine enclosure and transmission
SAFETY
  • Additional monitor for rearview camera
  • Enhanced access platform
  • Machine Security System Key
  • Service access platform
OTHER ATTACHMENTS
  • Auto-lube, Centro-matic
  • Auto-lube, ripper enhancement
  • Control, blade, variable float
  • Heater, engine coolant, 120V
  • Heater, engine coolant, 240V
  • Hydraulic arrangements with additional hydraulic valves Base+1
  • Hydraulic arrangements with additional hydraulic valves Base+5
  • Product Link Elite dual
  • Rim, 495.3 mm × 635 mm (19.5 in × 25 in) MP (spare)
  • Weather, Cold Plus package
WORK TOOLS/G.E.T.
  • 5.5 m (18 ft) blade with curved cutting edge 203 mm × 25 mm (8 in × 1 in)
  • Tooth, ripper
FLUIDS
  • Coolant, –51° C (–60° F)

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