18

18 Motor Grader

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Virtual product tour thumbnail
18 Motor Grader with ripper and push block
18 Motor Grader
18 Motor Grader
18 Motor Grader
18 Motor Grader
18 Motor Grader
18 Motor Grader
18 Motor Grader
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Base Power (1st Gear) - Net
304 hp
Engine Model
Cat® C13
Bore
5.1 in
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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THE RUNDOWN

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.
Engine
Base Power (1st Gear) - Net304hp
Engine ModelCat® C13
Bore5.1in
Stroke6.2in
Speed at Rated Power2,000 rpm
Standard - Ambient Capability122°F
Base Power (1st Gear) - Net - Metric309hp
VHP Range - Net227-266 kW (304-357 hp)
Maximum Torque - ISO 9249 - Tier 2/Stage II/Japan 2001 (Tier 2) Equivalent1270lb/ft
Derating Altitude - Tier 2/Stage II/Japan 2001 (Tier 2) Equivalent12176ft
Derating Altitude - Tier 3/Stage IIIA/Japan 2006 (Tier 3) Equivalent12973ft
Maximum Torque - ISO 9249 - Tier 3/Stage IIIA/Japan 2006 (Tier 3) Equivalent1270lb/ft
Standard - Fan Speed - Minimum550 rpm
Emissions (1)U.S. EPA Tier 4 Final/EU Stage V/Japan 2014 (Tier 4 Final)
Torque Rise - Tier 4/Stage IV/Japan 2014 (Tier 4 Final)40%
Maximum Torque - ISO 9249 - Tier 4/Stage IV/Japan 2014 (Tier 4 Final)1306lb/ft
Derating Altitude - Tier 4/Stage IV/Japan 2014 (Tier 4 Final)12500ft
Torque Rise - Tier 2/Stage II/Japan 2001 (Tier 2) Equivalent38%
Standard - Fan Speed - Maximum1,450 rpm
Emissions (2)Tier 3/Stage IIIA/Japan 2006 (Tier 3) Equivalent Emission Standards
Torque Rise - Tier 3/Stage IIIA/Japan 2006 (Tier 3) Equivalent38%
VHP Range - Net - Metric227-266 kW (309-362 hp)
Emissions (3)Tier 2/Stage II/Japan 2001 (Tier 2) Equivalent Emission Standards
Displacement763in³
Number of Cylinders6
Optimized VHP Range - Net227-266 kW (304-357 hp)
Weights
Operating Weight - Typically Equipped74324lb
Power Train
Forward/Reverse Gears8 Forward/6 Reverse
TransmissionDirect drive, power shift, countershaft
Brakes - ParkingSpring applied, hydraulically released
Brakes - Dynamic Brake Torque per Wheel27069.27lb/ft
Brakes - ServiceOil-actuated, oil disc
Brakes - SecondaryOil-actuated, oil-disc
Moldboard
Blade Width18ft
Arc Radius16.3in
Throat Clearance5in
Down Force - Maximum GVW43861lb
Blade Pull* - Base GVW47216lb
Blade Pull* - Maximum GVW52878lb
End Bit - Width6in
Down Force - Base GVW34008lb
Cutting Edge Thickness1.4in
Thickness1in
Width18ft
Cutting Edge Width10in
End Bit - Thickness0.75in
Height31in
Note*Blade pull calculated at 0.9 traction coefficient, which is equal to ideal no-slip conditions, and Gross Machine Weight.
Hydraulic System
Circuit TypeElectro-hydraulic load sensing, closed center
Pump TypeVariable piston
Maximum System Pressure3590psi
Standby Pressure856psi
Pump Output*74gpm
Note*Pump output measured at 2,150 rpm.
Operating Specifications
Steering Range - Left/Right47.5°
Reverse - 2nd4.1mile/h
Reverse - 5th17.4mile/h
Forward - 6th16.0mile/h
Forward - 2nd3.8mile/h
Forward - 8th32.1mile/h
Forward - 5th11.8mile/h
Reverse - 3rd6.0mile/h
Turning Radius - Outside Front Tires30.5ft
Forward - 4th7.6mile/h
Top Speed - Reverse25.3mile/h
Forward - 7th22.0mile/h
Articulation Angle - Left/Right20°
Reverse - 1st2.2mile/h
Forward - 3rd5.5mile/h
Reverse - 4th9.3mile/h
Forward - 1st2.8mile/h
Top Speed - Forward32.1mile/h
Reverse - 6th25.3mile/h
NoteCalculated with no slip and 23.5R25 L-3 tires.
Service Refill
Fuel Capacity131gal (US)
Cooling System18.5gal (US)
Hydraulic System - Tank18.5gal (US)
Hydraulic System - Total38.6gal (US)
DEF Tank4.2gal (US)
Engine Oil9.5gal (US)
Transmission - Differential - Final Drives26gal (US)
Tandem Housing - Each34gal (US)
Front Wheel Spindle Bearing Housing0.24gal (US)
Circle Drive Housing2.6gal (US)
Frame
Front Frame Structure - Width14.0in
Front Axle - Height to Center26.4in
Circle - Diameter71.7in
Front Frame Structure - Thickness0.6in
Front Frame Structure - Height18.1in
Circle - Blade Beam Thickness2in
Drawbar - Width3in
Front Axle - Wheel Lean18° Left/17° Right
Front Axle - Total Oscillation per Side35°
Drawbar - Height8in
Tandems
Sidewall Thickness - Outer0.9in
Sidewall Thickness - Inner0.9in
Tandem Oscillation - Front Up15°
Tandem Oscillation - Front Down25°
Height25.5in
Width9.3in
Drive Chain Pitch2.5in
Wheel Axle Spacing72.5in
Blade Range
Maximum Blade Position Angle65°
Maximum Lift Above Ground15.7in
Maximum Depth of Cut18.5in
Maximum Shoulder Reach Outside of Tires - Right103in
Circle Centershift - Right22in
Maximum Shoulder Reach Outside of Tires - Left103in
Moldboard Sideshift - Right31.1in
Blade Tip Range - Backward5°
Moldboard Sideshift - Left29.1in
Circle Centershift - Left27.2in
Blade Tip Range - Forward40°
Ripper
Shank Holder Spacing - Minimum17.5in
Ripping Depth - Maximum17.8in
Ripper Shank Holders7
Penetration Force30311lb
Pry-Out Force43700lb
Machine Length Increase, Beam Raised63.4in
Shank Holder Spacing - Maximum20in
Weights Tier 4 Final/Stage IV/Japan 2014 (Tier 4 Final)*
Gross Vehicle Weight - Typically Equipped - Rear Axle53830lb
Gross Vehicle Weight - Base** - Total72298lb
Gross Vehicle Weight - Maximum Tested - Rear Axle58753lb
Gross Vehicle Weight - Maximum Tested - Front Axle26125lb
Gross Vehicle Weight - Typically Equipped - Front Axle20494lb
Gross Vehicle Weight - Base** - Front Axle19837lb
Gross Vehicle Weight - Maximum Tested - Total84877lb
Gross Vehicle Weight - Typically Equipped - Total74324lb
Gross Vehicle Weight - Base** - Rear Axle52461lb
Note (2)**Base operating weight calculated on standard machine configuration with 23.5R25 tires, full fuel tank operator and rops cab.
Note (1)*No Tier 4 Final/Stage IV/Japan 2014 (Tier 4 Final) emission engine: subtract 150 kg (331 lb) from rear axle wt. & total wt.
Dimensions (Approximate)
Height - Top of Cylinders122.6in
Width - Outside Rear Tires134.3in
Height - Exhaust Stack141.1in
Length - Between Tandem Axles72.5in
Length - Front Axle to Mid Tandem290in
Width - Tire Center Lines106.4in
Length - Front Axle to Moldboard120.7in
Length - Counterweight to Ripper474.4in
Height - Front Axle Center29.9in
Width - Outside Front Tires134.3in
Length - Front Tire to Rear of Machine - Including Tow Hitch417in
Height - Top of Cab147.5in
Ground Clearance - Rear Axle16.7in
Standards
SoundISO 6394: 2008/ISO 6395: 2008/ISO 6396: 2008
ROPS/FOPSISO 3471: 2008/ISO 3449: 2005
BrakesISO 3450: 2011
SteeringISO 5010: 2007
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 1st309hp
Gear - Forward 2nd309hp
Gear - Reverse 2nd309hp
Gear - Forward 4th325hp
Gear - Forward 6th341hp
Gear - Forward 5th332hp
Gear - Forward 8th362hp
Gear - Reverse 1st309hp
Gear - Forward 3rd315hp
Gear - Forward 7th347hp
Gear - Reverse 3rd-6th315hp
Optional Tire Arrangements
Wheel Group - 19.5×25 MP (2)Tires: 23.5R25 Bridgestone VKT 1 Star
Wheel Group - 19.5×25 MP (1)Tires: 23.5R25 Bridgestone VKT 2 Star
Wheel Group - 19.5×25 MP (3)Tires: 23.5R25 Bridgestone VJT 1 Star
Wheel Group - 19.5×25 MP (4)Tires: 23.5R25 Michelin XHA 2 Star
Wheel Group - 19.5×25 MP (5)Tires: 23.5R25 Michelin XLDD 2 Star L5
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 4th321hp
Gear - Reverse 2nd304hp
Gear - Forward 1st304hp
Gear - Reverse 3rd-6th311hp
Gear - Forward 3rd311hp
Gear - Forward 5th327hp
Gear - Forward 7th342hp
Gear - Forward 2nd304hp
Gear - Reverse 1st304hp
Gear - Forward 6th337hp
Gear - Forward 8th357hp
Air Conditioning System
Air ConditioningThe 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).
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)