18

18 Motor Grader

Cat® 18 motor grader powers through mining with high efficiency, advanced emissions control, and a wider moldboard. Ideal for haul road maintenance and mining operations, this heavy equipment cuts costs and ensures uptime with Cat durability.

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Specifications

NameTypeValueUnit Value (Imperial)Unit NameUnit Value (Metric)Unit Name (Metric)
Base Power (1st Gear) - Netmeasurement304hp227kW
Engine ModeltextCat® C13
Boremeasurement5.1in130mm

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Documents & Spec Sheets

18 Product Brochure

18 Motor Grader Specalog

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Mining Motor Grader Rig Out Catalog

Mining Motor Grader Rig Out Catalog

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18 Poster

18 Poster

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Features & Benefits

BETTER COMFORT AND CONTROL
Cat 18 Motor Grader - BETTER COMFORT AND CONTROL
  • 18 foot moldboard and straight 10 inch by 1-3/8 inch cutting edge, allowing operators to increase coverage by 12.5% compared to a 16 foot moldboard. The operator can use a more aggressive blade angle and still be able to deposit the windrow away from the tires to protect tire life. More aggressive blade angles reduce the load on the machine and maintain better ground speed for enhanced performance.
  • Variable Horse Power (VHP) provides the ideal amount of power in all gears to efficiently perform diverse motor grader applications while protecting structure and drive train components.
  • With optimized combination of weight and balance the 18delivers enhanced traction and the ability to keep ground speed, especially when carrying a large load on the board.
  • Emissions reduction technology is transparent and automated with no action required from the operator.
  • Rear Ripper / Scarifier penetrates tough material fast for easier movement with the moldboard. Standard ripper with three shanks can add four more for additional versatility.
  • Multi-color, touch screen Information Display is the operator's gateway to monitoring machine performance and offers a convenient way of modifying machine parameters to tailor performance to the current task. Provides access to service information for initial troubleshooting.
  • Cat VisionLink is deeply integrated into the machine, helping 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 user interface can help effectively manage fleets and lower operating costs.
  • Manage your fleet of machines while reducing fuel burn with Cat Production Measurement System option. The Efficiency Coach and Application Segmentation work together to monitor operators and machines simultaneously. Measure your jobsite’s efficiency and productivity from anywhere on the website.
ACHIEVE GREATER PRODUCTIVITY
Cat 18 Motor Grader - ACHIEVE GREATER PRODUCTIVITY
  • The 18 helps to reduce downtime and operating costs 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.
  • 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. Provides significant fuel savings especially in operations that typically run light to moderate loads.
  • 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.
  • A front guard helps protect the front axle from rocks or other debris that could damage the axle or its components.
  • The transmission guard provides a steel protection from ground debris.
  • 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.
  • Extended maintenance intervals reduce the number of touches and downtime.
  • 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.
BUILT-IN SAFETY FEATURES
Cat 18 Motor Grader - BUILT-IN SAFETY FEATURES
  • Caterpillar considers the safety of everyone in, on, or around Cat equipment when developing new products or enhancing safety features for existing products.
  • The 18 has numerous safety features such as but not limited to
  1. Access to Tandem
  2. Light Emitting Diode (LED) Enclosure Service Lights
  3. Seat Belt Indication
  4. Fire Suppression Ready System
  5. Rearview Camera
  6. Optional Access Platform
  7. Optional Service Access Platform
TOP-TIER SERVICE AND SUPPORT
Cat 18 Motor Grader - TOP-TIER SERVICE AND SUPPORT
  • Your local Cat dealer is committed to helping you succeed, by ensuring you have the right machine for the job, making parts and service readily available, offering operator training and providing you with versatile work tools.

Complete Specifications

Engine

NameTypeValueUnit Value (Imperial)Unit NameUnit Value (Metric)Unit Name (Metric)
Base Power (1st Gear) - Netmeasurement304hp227kW
Engine ModeltextCat® C13
Boremeasurement5.1in130mm
Strokemeasurement6.2in157mm
Speed at Rated Powertext2,000 rpm
Standard - Ambient Capabilitymeasurement122°F50°C
Base Power (1st Gear) - Net - Metricmeasurement309hp227kW
VHP Range - Nettext227-266 kW (304-357 hp)
Maximum Torque - ISO 9249 - Tier 2/Stage II/Japan 2001 (Tier 2) Equivalentmeasurement1270lb/ft1721N·m
Derating Altitude - Tier 2/Stage II/Japan 2001 (Tier 2) Equivalentmeasurement12176ft3711m
Derating Altitude - Tier 3/Stage IIIA/Japan 2006 (Tier 3) Equivalentmeasurement12973ft3954m
Maximum Torque - ISO 9249 - Tier 3/Stage IIIA/Japan 2006 (Tier 3) Equivalentmeasurement1270lb/ft1721N·m
Standard - Fan Speed - Minimumtext550 rpm
Emissions (1)textU.S. EPA Tier 4 Final/EU Stage V/Japan 2014 (Tier 4 Final)
Torque Rise - Tier 4/Stage IV/Japan 2014 (Tier 4 Final)text40%
Maximum Torque - ISO 9249 - Tier 4/Stage IV/Japan 2014 (Tier 4 Final)measurement1306lb/ft1771N·m
Derating Altitude - Tier 4/Stage IV/Japan 2014 (Tier 4 Final)measurement12500ft3810m
Torque Rise - Tier 2/Stage II/Japan 2001 (Tier 2) Equivalenttext38%
Standard - Fan Speed - Maximumtext1,450 rpm
Emissions (2)textTier 3/Stage IIIA/Japan 2006 (Tier 3) Equivalent Emission Standards
Torque Rise - Tier 3/Stage IIIA/Japan 2006 (Tier 3) Equivalenttext38%
VHP Range - Net - Metrictext227-266 kW (309-362 hp)
Emissions (3)textTier 2/Stage II/Japan 2001 (Tier 2) Equivalent Emission Standards
Displacementmeasurement763in³12.5l
Number of Cylinderstext6
Operating Weight - Typically Equippedmeasurement74324lb33713kg
Forward/Reverse Gearstext8 Forward/6 Reverse
TransmissiontextDirect drive, power shift, countershaft
Brakes - ParkingtextSpring applied, hydraulically released
Brakes - Dynamic Brake Torque per Wheelmeasurement27069.27lb/ft36701N·m
Brakes - ServicetextOil-actuated, oil disc
Brakes - SecondarytextOil-actuated, oil-disc
Blade Widthmeasurement18ft5.5m
Circuit TypetextElectro-hydraulic load sensing, closed center
Pump TypetextVariable piston
Maximum System Pressuremeasurement3590psi24750kPa
Standby Pressuremeasurement856psi5900kPa
Pump Output*measurement74gpm280L/min
Notetext*Pump output measured at 2,150 rpm.
Forward - 6thmeasurement16.0mile/h25.8km/h
Forward - 2ndmeasurement3.8mile/h6.1km/h
Forward - 8thmeasurement32.1mile/h51.7km/h
Forward - 5thmeasurement11.8mile/h19.0km/h
Reverse - 3rdmeasurement6.0mile/h9.7km/h
Turning Radius - Outside Front Tiresmeasurement30.5ft9.3m
Forward - 4thmeasurement7.6mile/h12.3km/h
Top Speed - Reversemeasurement25.3mile/h40.8km/h
Forward - 7thmeasurement22.0mile/h35.5km/h
Articulation Angle - Left/Righttext20°
Reverse - 1stmeasurement2.2mile/h3.6km/h
Forward - 3rdmeasurement5.5mile/h8.9km/h
Reverse - 4thmeasurement9.3mile/h15.0km/h
Forward - 1stmeasurement2.8mile/h4.5km/h
Top Speed - Forwardmeasurement32.1mile/h51.7km/h
Reverse - 6thmeasurement25.3mile/h40.8km/h
Steering Range - Left/Righttext47.5°
Reverse - 2ndmeasurement4.1mile/h6.6km/h
Reverse - 5thmeasurement17.4mile/h28.0km/h
Fuel Capacitymeasurement131gal (US)496l
Cooling Systemmeasurement18.5gal (US)70l
Hydraulic System - Tankmeasurement18.5gal (US)70l
Hydraulic System - Totalmeasurement38.6gal (US)146l
DEF Tankmeasurement4.2gal (US)16l
Engine Oilmeasurement9.5gal (US)36l
Transmission - Differential - Final Drivesmeasurement26gal (US)98.5l
Tandem Housing - Eachmeasurement34gal (US)129l
Front Wheel Spindle Bearing Housingmeasurement0.24gal (US)0.9l
Circle Drive Housingmeasurement2.6gal (US)10l
Front Frame Structure - Widthmeasurement14.0in356mm
Front Axle - Height to Centermeasurement26.4in670mm
Circle - Diametermeasurement71.7in1822mm
Front Frame Structure - Thicknessmeasurement0.6in14mm
Front Frame Structure - Heightmeasurement18.1in460mm
Circle - Blade Beam Thicknessmeasurement2in50mm
Drawbar - Widthmeasurement3in76mm
Front Axle - Wheel Leantext18° Left/17° Right
Front Axle - Total Oscillation per Sidetext35°
Drawbar - Heightmeasurement8in203mm
Sidewall Thickness - Outermeasurement0.9in22mm
Sidewall Thickness - Innermeasurement0.9in22mm
Tandem Oscillation - Front Uptext15°
Tandem Oscillation - Front Downtext25°
Heightmeasurement25.5in648mm
Widthmeasurement9.3in236mm
Drive Chain Pitchmeasurement2.5in63.5mm
Wheel Axle Spacingmeasurement72.5in1841mm
Arc Radiusmeasurement16.3in413mm
Throat Clearancemeasurement5in126mm
Down Force - Maximum GVWmeasurement43861lb19895kg
Blade Pull* - Base GVWmeasurement47216lb21417kg
Blade Pull* - Maximum GVWmeasurement52878lb23985kg
End Bit - Widthmeasurement6in152mm
Down Force - Base GVWmeasurement34008lb15426kg
Cutting Edge Thicknessmeasurement1.4in35mm
Thicknessmeasurement1in25mm
Widthmeasurement18ft5.5m
Cutting Edge Widthmeasurement10in254mm
End Bit - Thicknessmeasurement0.75in19mm
Heightmeasurement31in787mm
Maximum Blade Position Angletext65°
Maximum Lift Above Groundmeasurement15.7in400mm
Maximum Depth of Cutmeasurement18.5in470mm
Maximum Shoulder Reach Outside of Tires - Rightmeasurement103in2605mm
Circle Centershift - Rightmeasurement22in560mm
Maximum Shoulder Reach Outside of Tires - Leftmeasurement103in2605mm
Moldboard Sideshift - Rightmeasurement31.1in790mm
Blade Tip Range - Backwardtext
Moldboard Sideshift - Leftmeasurement29.1in740mm
Circle Centershift - Leftmeasurement27.2in690mm
Blade Tip Range - Forwardtext40°
Shank Holder Spacing - Minimummeasurement17.5in445mm
Ripping Depth - Maximummeasurement17.8in452mm
Ripper Shank Holderstext7
Penetration Forcemeasurement30311lb13749kg
Pry-Out Forcemeasurement43700lb19822kg
Machine Length Increase, Beam Raisedmeasurement63.4in1610mm
Gross Vehicle Weight - Typically Equipped - Rear Axlemeasurement53830lb24417kg
Gross Vehicle Weight - Base** - Totalmeasurement72298lb32794kg
Gross Vehicle Weight - Maximum Tested - Rear Axlemeasurement58753lb26650kg
Gross Vehicle Weight - Maximum Tested - Front Axlemeasurement26125lb11850kg
Gross Vehicle Weight - Typically Equipped - Front Axlemeasurement20494lb9296kg
Gross Vehicle Weight - Base** - Front Axlemeasurement19837lb8998kg
Gross Vehicle Weight - Maximum Tested - Totalmeasurement84877lb38500kg
Gross Vehicle Weight - Typically Equipped - Totalmeasurement74324lb33713kg
Gross Vehicle Weight - Base** - Rear Axlemeasurement52461lb23796kg
Height - Top of Cylindersmeasurement122.6in3115mm
Width - Outside Rear Tiresmeasurement134.3in3411mm
Height - Exhaust Stackmeasurement141.1in3584mm
Length - Between Tandem Axlesmeasurement72.5in1841mm
Length - Front Axle to Mid Tandemmeasurement290in7365mm
Width - Tire Center Linesmeasurement106.4in2703mm
Length - Front Axle to Moldboardmeasurement120.7in3066mm
Length - Counterweight to Rippermeasurement474.4in12051mm
Height - Front Axle Centermeasurement29.9in760mm
Width - Outside Front Tiresmeasurement134.3in3411mm
Length - Front Tire to Rear of Machine - Including Tow Hitchmeasurement417in10593mm
Height - Top of Cabmeasurement147.5in3746mm
Ground Clearance - Rear Axlemeasurement16.7in423mm
SoundtextISO 6394: 2008/ISO 6395: 2008/ISO 6396: 2008
ROPS/FOPStextISO 3471: 2008/ISO 3449: 2005
BrakestextISO 3450: 2011
SteeringtextISO 5010: 2007
Gear - Forward 1stmeasurement309hp227kW
Wheel Group - 19.5×25 MP (2)textTires: 23.5R25 Bridgestone VKT 1 Star
Optimized VHP Range - Nettext227-266 kW (304-357 hp)
Gear - Forward 4thmeasurement321hp239kW
Gear - Reverse 2ndmeasurement304hp227kW
Gear - Forward 2ndmeasurement309hp227kW
Gear - Reverse 2ndmeasurement309hp227kW
Gear - Forward 4thmeasurement325hp239kW
Gear - Forward 6thmeasurement341hp251kW
Wheel Group - 19.5×25 MP (1)textTires: 23.5R25 Bridgestone VKT 2 Star
Gear - Forward 1stmeasurement304hp227kW
Gear - Reverse 3rd-6thmeasurement311hp232kW
Gear - Forward 3rdmeasurement311hp232kW
Gear - Forward 5thmeasurement332hp244kW
Gear - Forward 5thmeasurement327hp244kW
Gear - Forward 7thmeasurement342hp255kW
Wheel Group - 19.5×25 MP (3)textTires: 23.5R25 Bridgestone VJT 1 Star
Shank Holder Spacing - Maximummeasurement20in500mm
Note (2)text**Base operating weight calculated on standard machine configuration with 23.5R25 tires, full fuel tank operator and rops cab.
Gear - Forward 2ndmeasurement304hp227kW
Gear - Forward 8thmeasurement362hp266kW
Gear - Reverse 1stmeasurement309hp227kW
Gear - Forward 3rdmeasurement315hp232kW
Gear - Forward 7thmeasurement347hp255kW
Air ConditioningtextThe air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a or R1234yf. See the label or instruction manual for identification of the gas. - If equipped with R134a (Global Warming Potential = 1430), the system contains 2 kg (4.4 lb) of refrigerant which has a CO2 equivalent of 2.860 metric tonnes (3.152 tons).
Wheel Group - 19.5×25 MP (4)textTires: 23.5R25 Michelin XHA 2 Star
Gear - Reverse 1stmeasurement304hp227kW
Note (1)text*No Tier 4 Final/Stage IV/Japan 2014 (Tier 4 Final) emission engine: subtract 150 kg (331 lb) from rear axle wt. & total wt.
Gear - Forward 6thmeasurement337hp251kW
Gear - Forward 8thmeasurement357hp266kW
Gear - Reverse 3rd-6thmeasurement315hp232kW
Wheel Group - 19.5×25 MP (5)textTires: 23.5R25 Michelin XLDD 2 Star L5
NotetextCalculated with no slip and 23.5R25 L-3 tires.
Notetext*Blade pull calculated at 0.9 traction coefficient, which is equal to ideal no-slip conditions, and Gross Machine Weight.

Standard Equipment

NOTE

  • Standard and optional equipment may vary. Consult your Cat dealer for details.

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 V/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. 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

NOTE

  • Standard and optional equipment may vary. Consult your Cat dealer for details.

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)

Attachments