New CAT Equipment

18 Motor Grader

Keep Haul Roads Productive and Efficient

More power, more efficiency, improved emissions control and a wider moldboard help the Cat® 18 rise up to the challenge of mining operations. Technologies assist the operator and work to minimize operating costs. And, Cat durability helps ensure peak availability.

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    Benefits

    Move more with less fuel

    Eco Mode saves fuel while maintaining productivity.

    Maintain cross slope

    Cat Grade Control helps operator maintain desired cross slope.

    Manage your fleet

    Cat MineStar helps manage your fleet to optimize quality and operating costs.

    Learn more about the 18 Motor Grader

    Watch

    • Blade Range
      Blade Tip Range - Backward
      5°
      Blade Tip Range - Forward
      40°
      Circle Centershift - Left
      27.2 in
      Circle Centershift - Right
      22 in
      Maximum Blade Position Angle
      65°
      Maximum Depth of Cut
      18.5 in
      Maximum Lift Above Ground
      15.7 in
      Maximum Shoulder Reach Outside of Tires - Left
      103 in
      Maximum Shoulder Reach Outside of Tires - Right
      103 in
      Moldboard Sideshift - Left
      29.1 in
      Moldboard Sideshift - Right
      31.1 in
    • Dimensions (Approximate)
      Ground Clearance - Rear Axle
      16.7 in
      Height - Exhaust Stack
      141.1 in
      Height - Front Axle Center
      29.9 in
      Height - Top of Cab
      147.5 in
      Height - Top of Cylinders
      122.6 in
      Length - Between Tandem Axles
      72.5 in
      Length - Counterweight to Ripper
      474.4 in
      Length - Front Axle to Mid Tandem
      290 in
      Length - Front Axle to Moldboard
      120.7 in
      Length - Front Tire to Rear of Machine - Including Tow Hitch
      417 in
      Width - Outside Front Tires
      134.3 in
      Width - Outside Rear Tires
      134.3 in
      Width - Tire Center Lines
      106.4 in
    • Engine
      Base Power (1st Gear) - Net
      304 HP
      Base Power (1st Gear) - Net - Metric
      309 HP
      Bore
      5.1 in
      Derating Altitude - Tier 2/Stage II/Japan 2001 (Tier 2) Equivalent
      12176 ft
      Derating Altitude - Tier 3/Stage IIIA/Japan 2006 (Tier 3) Equivalent
      12973 ft
      Derating Altitude - Tier 4/Stage IV/Japan 2014 (Tier 4 Final)
      12500 ft
      Displacement
      763 in³
      Emissions (1)
      U.S. EPA Tier 4 Final/EU Stage V/Japan 2014 (Tier 4 Final)
      Emissions (2)
      Tier 3/Stage IIIA/Japan 2006 (Tier 3) Equivalent Emission Standards
      Emissions (3)
      Tier 2/Stage II/Japan 2001 (Tier 2) Equivalent Emission Standards
      Engine Model
      Cat® C13
      Maximum Torque - ISO 9249 - Tier 2/Stage II/Japan 2001 (Tier 2) Equivalent
      1270 lb/ft
      Maximum Torque - ISO 9249 - Tier 3/Stage IIIA/Japan 2006 (Tier 3) Equivalent
      1270 lb/ft
      Maximum Torque - ISO 9249 - Tier 4/Stage IV/Japan 2014 (Tier 4 Final)
      1306 lb/ft
      Number of Cylinders
      6
      Optimized VHP Range - Net
      227-266 kW (304-357 hp)
      Speed at Rated Power
      2,000 rpm
      Standard - Ambient Capability
      122 °F
      Standard - Fan Speed - Maximum
      1,450 rpm
      Standard - Fan Speed - Minimum
      550 rpm
      Stroke
      6.2 in
      Torque Rise - Tier 2/Stage II/Japan 2001 (Tier 2) Equivalent
      38%
      Torque Rise - Tier 3/Stage IIIA/Japan 2006 (Tier 3) Equivalent
      38%
      Torque Rise - Tier 4/Stage IV/Japan 2014 (Tier 4 Final)
      40%
      VHP Range - Net
      227-266 kW (304-357 hp)
      VHP Range - Net - Metric
      227-266 kW (309-362 hp)
    • Frame
      Circle - Blade Beam Thickness
      2 in
      Circle - Diameter
      71.7 in
      Drawbar - Height
      8 in
      Drawbar - Width
      3 in
      Front Axle - Height to Center
      26.4 in
      Front Axle - Total Oscillation per Side
      35°
      Front Axle - Wheel Lean
      18° Left/17° Right
      Front Frame Structure - Height
      18.1 in
      Front Frame Structure - Thickness
      0.6 in
      Front Frame Structure - Width
      14 in
    • Hydraulic System
      Circuit Type
      Electro-hydraulic load sensing, closed center
      Maximum System Pressure
      3590 psi
      Note
      *Pump output measured at 2,150 rpm.
      Pump Output*
      74 gal/min
      Pump Type
      Variable piston
      Standby Pressure
      856 psi
    • Moldboard
      Arc Radius
      16.3 in
      Blade Pull* - Base GVW
      47216 lb
      Blade Pull* - Maximum GVW
      52878 lb
      Blade Width
      18 ft
      Cutting Edge Thickness
      1.4 in
      Cutting Edge Width
      10 in
      Down Force - Base GVW
      34008 lb
      Down Force - Maximum GVW
      43861 lb
      End Bit - Thickness
      0.75 in
      End Bit - Width
      6 in
      Height
      31 in
      Note
      *Blade pull calculated at 0.9 traction coefficient, which is equal to ideal no-slip conditions, and Gross Machine Weight.
      Thickness
      1 in
      Throat Clearance
      5 in
      Width
      18 ft
    • Operating Specifications
      Articulation Angle - Left/Right
      20°
      Forward - 1st
      2.8 mile/h
      Forward - 2nd
      3.8 mile/h
      Forward - 3rd
      5.5 mile/h
      Forward - 4th
      7.6 mile/h
      Forward - 5th
      11.8 mile/h
      Forward - 6th
      16 mile/h
      Forward - 7th
      22 mile/h
      Forward - 8th
      32.1 mile/h
      Note
      Calculated with no slip and 23.5R25 L-3 tires.
      Reverse - 1st
      2.2 mile/h
      Reverse - 2nd
      4.1 mile/h
      Reverse - 3rd
      6 mile/h
      Reverse - 4th
      9.3 mile/h
      Reverse - 5th
      17.4 mile/h
      Reverse - 6th
      25.3 mile/h
      Steering Range - Left/Right
      47.5°
      Top Speed - Forward
      32.1 mile/h
      Top Speed - Reverse
      25.3 mile/h
      Turning Radius - Outside Front Tires
      30.5 ft
    • Optional Tire Arrangements
      Wheel Group - 19.5×25 MP (1)
      Tires: 23.5R25 Bridgestone VKT 2 Star
      Wheel Group - 19.5×25 MP (2)
      Tires: 23.5R25 Bridgestone VKT 1 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
    • Power Train
      Brakes - Dynamic Brake Torque per Wheel
      27069.27 lb/ft
      Brakes - Parking
      Spring applied, hydraulically released
      Brakes - Secondary
      Oil-actuated, oil-disc
      Brakes - Service
      Oil-actuated, oil disc
      Forward/Reverse Gears
      8 Forward/6 Reverse
      Transmission
      Direct drive, power shift, countershaft
    • Ripper
      Machine Length Increase, Beam Raised
      63.4 in
      Penetration Force
      30311 lb
      Pry-Out Force
      43700 lb
      Ripper Shank Holders
      7
      Ripping Depth - Maximum
      17.8 in
      Shank Holder Spacing - Maximum
      20 in
      Shank Holder Spacing - Minimum
      17.5 in
    • Service Refill
      Circle Drive Housing
      2.6 gal (US)
      Cooling System
      18.5 gal (US)
      DEF Tank
      4.2 gal (US)
      Engine Oil
      9.5 gal (US)
      Front Wheel Spindle Bearing Housing
      0.24 gal (US)
      Fuel Capacity
      131 gal (US)
      Hydraulic System - Tank
      18.5 gal (US)
      Hydraulic System - Total
      38.6 gal (US)
      Tandem Housing - Each
      34 gal (US)
      Transmission - Differential - Final Drives
      26 gal (US)
    • Standards
      Brakes
      ISO 3450: 2011
      ROPS/FOPS
      ISO 3471: 2008/ISO 3449: 2005
      Sound
      ISO 6394: 2008/ISO 6395: 2008/ISO 6396: 2008
      Steering
      ISO 5010: 2007
    • Tandems
      Drive Chain Pitch
      2.5 in
      Height
      25.5 in
      Sidewall Thickness - Inner
      0.9 in
      Sidewall Thickness - Outer
      0.9 in
      Tandem Oscillation - Front Down
      25°
      Tandem Oscillation - Front Up
      15°
      Wheel Axle Spacing
      72.5 in
      Width
      9.3 in
    • 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
      309 HP
      Gear - Forward 2nd
      309 HP
      Gear - Forward 3rd
      315 HP
      Gear - Forward 4th
      325 HP
      Gear - Forward 5th
      332 HP
      Gear - Forward 6th
      341 HP
      Gear - Forward 7th
      347 HP
      Gear - Forward 8th
      362 HP
      Gear - Reverse 1st
      309 HP
      Gear - Reverse 2nd
      309 HP
      Gear - Reverse 3rd-6th
      315 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 - Net
      Gear - Forward 1st
      304 HP
      Gear - Forward 2nd
      304 HP
      Gear - Forward 3rd
      311 HP
      Gear - Forward 4th
      321 HP
      Gear - Forward 5th
      327 HP
      Gear - Forward 6th
      337 HP
      Gear - Forward 7th
      342 HP
      Gear - Forward 8th
      357 HP
      Gear - Reverse 1st
      304 HP
      Gear - Reverse 2nd
      304 HP
      Gear - Reverse 3rd-6th
      311 HP
    • Weights
      Operating Weight - Typically Equipped
      74324 lb
    • Weights Tier 4 Final/Stage IV/Japan 2014 (Tier 4 Final)*
      Gross Vehicle Weight - Base** - Front Axle
      19837 lb
      Gross Vehicle Weight - Base** - Rear Axle
      52461 lb
      Gross Vehicle Weight - Base** - Total
      72298 lb
      Gross Vehicle Weight - Maximum Tested - Front Axle
      26125 lb
      Gross Vehicle Weight - Maximum Tested - Rear Axle
      58753 lb
      Gross Vehicle Weight - Maximum Tested - Total
      84877 lb
      Gross Vehicle Weight - Typically Equipped - Front Axle
      20494 lb
      Gross Vehicle Weight - Typically Equipped - Rear Axle
      53830 lb
      Gross Vehicle Weight - Typically Equipped - Total
      74324 lb
      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.
      Note (2)
      **Base operating weight calculated on standard machine configuration with 23.5R25 tires, full fuel tank operator and rops cab.
    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)
    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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