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18 Motor Grader

The 18 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 18 enhances operational efficiencies by increasing coverage and reducing the number of passes required to complete the width of the road in certain applications. The 18 includes features that provide large benefits on operating cost reduction, uptime & performance improvements as well as enhanced safety.

Engine

Base Power (1st Gear) - Net

304HP

Engine Model

Cat® C13

Bore

5.1in

Stroke

6.2in

Speed at Rated Power

2,000 rpm

Optimized VHP Range - Net

227-266 kW (304-357 hp)

Standard - Ambient Capability

122°F

Base Power (1st Gear) - Net - Metric

309HP

VHP Range - Net

227-266 kW (304-357 hp)

Maximum Torque - ISO 9249 - Tier 2/Stage II/Japan 2001 (Tier 2) Equivalent

1270lb/ft

Derating Altitude - Tier 2/Stage II/Japan 2001 (Tier 2) Equivalent

12973ft

Derating Altitude - Tier 3/Stage IIIA/Japan 2006 (Tier 3) Equivalent

12176ft

Maximum Torque - ISO 9249 - Tier 3/Stage IIIA/Japan 2006 (Tier 3) Equivalent

1270lb/ft

Standard - Fan Speed - Minimum

550 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) Equivalent

38%

Standard - Fan Speed - Maximum

1,450 rpm

Emissions (2)

Tier 3/Stage IIIA/Japan 2006 (Tier 3) Equivalent Emission Standards

Torque Rise - Tier 3/Stage IIIA/Japan 2006 (Tier 3) Equivalent

38%

VHP Range - Net - Metric

227-266 kW (309-362 hp)

Emissions (3)

Tier 2/Stage II/Japan 2001 (Tier 2) Equivalent Emission Standards

Displacement

763in³

Number of Cylinders

6

Weights

Operating Weight - Typically Equipped

74324lb

Moldboard

Blade Width

18ft

Arc Radius

16.3in

Throat Clearance

5in

Note

*Blade pull calculated at 0.9 traction coefficient, which is equal to ideal no-slip conditions, and Gross Machine Weight.

Down Force - Maximum GVW

43861lb

Blade Pull* - Base GVW

47216lb

Blade Pull* - Maximum GVW

52878lb

End Bit - Width

6in

Down Force - Base GVW

34008lb

Cutting Edge Thickness

1.4in

Thickness

1in

Width

18ft

Cutting Edge Width

10in

End Bit - Thickness

0.75in

Height

31in

Service Refill

Fuel Capacity

131gal (US)

Cooling System

18.5gal (US)

Hydraulic System - Tank

18.5gal (US)

Hydraulic System - Total

38.6gal (US)

DEF Tank

4.2gal (US)

Engine Oil

9.5gal (US)

Transmission - Differential - Final Drives

26gal (US)

Tandem Housing - Each

34gal (US)

Front Wheel Spindle Bearing Housing

0.24gal (US)

Circle Drive Housing

2.6gal (US)

Power Train

Forward/Reverse Gears

8 Forward/6 Reverse

Transmission

Direct drive, power shift, countershaft

Brakes - Parking

Spring applied, hydraulically released

Brakes - Dynamic Brake Torque per Wheel

27069.27lb/ft

Brakes - Service

Oil-actuated, oil disc

Brakes - Secondary

Oil-actuated, oil-disc

Hydraulic System

Circuit Type

Electro-hydraulic load sensing, closed center

Pump Type

Variable piston

Maximum System Pressure

3590psi

Standby Pressure

856psi

Pump Output*

74gal/min

Note

*Pump output measured at 2,150 rpm.

Blade Range

Maximum Blade Position Angle

65°

Maximum Lift Above Ground

15.7in

Maximum Depth of Cut

18.5in

Maximum Shoulder Reach Outside of Tires - Right

103in

Circle Centershift - Right

22in

Maximum Shoulder Reach Outside of Tires - Left

103in

Moldboard Sideshift - Right

31.1in

Blade Tip Range - Backward

Moldboard Sideshift - Left

29.1in

Circle Centershift - Left

27.2in

Blade Tip Range - Forward

40°

Dimensions (Approximate)

Height - Exhaust Stack

141.1in

Length - Between Tandem Axles

72.5in

Length - Front Axle to Mid Tandem

290in

Width - Tire Center Lines

106.4in

Length - Front Axle to Moldboard

120.7in

Length - Counterweight to Ripper

474.4in

Height - Front Axle Center

29.9in

Width - Outside Front Tires

134.3in

Length - Front Tire to Rear of Machine - Including Tow Hitch

417in

Height - Top of Cab

147.5in

Ground Clearance - Rear Axle

16.7in

Height - Top of Cylinders

122.6in

Width - Outside Rear Tires

134.3in

Standards

Sound

ISO 6394: 2008/ISO 6395: 2008/ISO 6396: 2008

ROPS/FOPS

ISO 3471: 2008/ISO 3449: 2005

Brakes

ISO 3450: 2011

Steering

ISO 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 1st

309HP

Gear - Forward 2nd

309HP

Gear - Reverse 2nd

309HP

Gear - Forward 4th

325HP

Gear - Forward 6th

341HP

Gear - Forward 5th

332HP

Gear - Forward 8th

362HP

Gear - Reverse 1st

309HP

Gear - Forward 3rd

315HP

Gear - Forward 7th

347HP

Gear - Reverse 3rd-6th

315HP

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 4th

321HP

Gear - Reverse 2nd

304HP

Gear - Forward 1st

304HP

Gear - Reverse 3rd-6th

311HP

Gear - Forward 3rd

311HP

Gear - Forward 5th

327HP

Gear - Forward 7th

342HP

Gear - Forward 2nd

304HP

Gear - Reverse 1st

304HP

Gear - Forward 6th

337HP

Gear - Forward 8th

357HP

Ripper

Shank Holder Spacing - Maximum

20in

Shank Holder Spacing - Minimum

17.5in

Ripping Depth - Maximum

17.8in

Ripper Shank Holders

7

Penetration Force

30311lb

Pry-Out Force

43700lb

Machine Length Increase, Beam Raised

63.4in

Weights Tier 4 Final/Stage IV/Japan 2014 (Tier 4 Final)*

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.

Gross Vehicle Weight - Typically Equipped - Rear Axle

53830lb

Gross Vehicle Weight - Base** - Total

72298lb

Gross Vehicle Weight - Maximum Tested - Rear Axle

58753lb

Gross Vehicle Weight - Maximum Tested - Front Axle

26125lb

Gross Vehicle Weight - Typically Equipped - Front Axle

20494lb

Gross Vehicle Weight - Base** - Front Axle

19837lb

Gross Vehicle Weight - Maximum Tested - Total

84877lb

Gross Vehicle Weight - Typically Equipped - Total

74324lb

Gross Vehicle Weight - Base** - Rear Axle

52461lb

Operating Specifications

Note

Calculated with no slip and 23.5R25 L-3 tires.

Forward - 6th

16mile/h

Forward - 2nd

3.8mile/h

Forward - 8th

32.1mile/h

Forward - 5th

11.8mile/h

Reverse - 3rd

6mile/h

Turning Radius - Outside Front Tires

30.5ft

Forward - 4th

7.6mile/h

Top Speed - Reverse

25.3mile/h

Forward - 7th

22mile/h

Articulation Angle - Left/Right

20°

Reverse - 1st

2.2mile/h

Forward - 3rd

5.5mile/h

Reverse - 4th

9.3mile/h

Forward - 1st

2.8mile/h

Top Speed - Forward

32.1mile/h

Reverse - 6th

25.3mile/h

Steering Range - Left/Right

47.5°

Reverse - 2nd

4.1mile/h

Reverse - 5th

17.4mile/h

Frame

Front Frame Structure - Width

14in

Front Axle - Height to Center

26.4in

Circle - Diameter

71.7in

Front Frame Structure - Thickness

0.6in

Front Frame Structure - Height

18.1in

Circle - Blade Beam Thickness

2in

Drawbar - Width

3in

Front Axle - Wheel Lean

18° Left/17° Right

Front Axle - Total Oscillation per Side

35°

Drawbar - Height

8in

Tandems

Sidewall Thickness - Outer

0.9in

Sidewall Thickness - Inner

0.9in

Tandem Oscillation - Front Up

15°

Tandem Oscillation - Front Down

25°

Height

25.5in

Width

9.3in

Drive Chain Pitch

2.5in

Wheel Axle Spacing

72.5in

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)

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