+

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
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
Optimized VHP Range - Net 227-266 kW (304-357 hp)
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°

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

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 2nd 304HP
Gear - Reverse 1st 304HP
Gear - Forward 6th 337HP
Gear - Forward 8th 357HP
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

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 8th 362HP
Gear - Reverse 1st 309HP
Gear - Forward 3rd 315HP
Gear - Forward 7th 347HP
Gear - Reverse 3rd-6th 315HP
Gear - Forward 1st 309HP
Gear - Forward 2nd 309HP
Gear - Reverse 2nd 309HP
Gear - Forward 4th 325HP
Gear - Forward 6th 341HP
Gear - Forward 5th 332HP

Optional Tire Arrangements

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
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

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

Dimensions (Approximate)

Height - Top of Cylinders 122.6in
Width - Outside Rear Tires 134.3in
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

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

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)