New CAT Equipment

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.

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Product Specs

Engine

Base Power (1st Gear) - Net 304 HP
Engine Model Cat® C13
Bore 5.1 in
Stroke 6.2 in
Speed at Rated Power 2,000 rpm
Standard - Ambient Capability 122 °F
Base Power (1st Gear) - Net - Metric 309 HP
VHP Range - Net 227-266 kW (304-357 hp)
Maximum Torque - ISO 9249 - Tier 2/Stage II/Japan 2001 (Tier 2) Equivalent 1270 lb/ft
Derating Altitude - Tier 2/Stage II/Japan 2001 (Tier 2) Equivalent 12973 ft
Derating Altitude - Tier 3/Stage IIIA/Japan 2006 (Tier 3) Equivalent 12176 ft
Maximum Torque - ISO 9249 - Tier 3/Stage IIIA/Japan 2006 (Tier 3) Equivalent 1270 lb/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) 1306 lb/ft
Derating Altitude - Tier 4/Stage IV/Japan 2014 (Tier 4 Final) 12500 ft
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 763 in³
Number of Cylinders 6
Optimized VHP Range - Net 227-266 kW (304-357 hp)

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 27069.27 lb/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 3590 psi
Standby Pressure 856 psi
Pump Output* 74 gal/min
Note *Pump output measured at 2,150 rpm.

Operating Specifications

Forward - 6th 16 mile/h
Forward - 2nd 3.8 mile/h
Forward - 8th 32.1 mile/h
Forward - 5th 11.8 mile/h
Reverse - 3rd 6 mile/h
Turning Radius - Outside Front Tires 30.5 ft
Forward - 4th 7.6 mile/h
Top Speed - Reverse 25.3 mile/h
Forward - 7th 22 mile/h
Articulation Angle - Left/Right 20°
Reverse - 1st 2.2 mile/h
Forward - 3rd 5.5 mile/h
Reverse - 4th 9.3 mile/h
Forward - 1st 2.8 mile/h
Top Speed - Forward 32.1 mile/h
Reverse - 6th 25.3 mile/h
Steering Range - Left/Right 47.5°
Reverse - 2nd 4.1 mile/h
Reverse - 5th 17.4 mile/h
Note Calculated with no slip and 23.5R25 L-3 tires.

Service Refill

Fuel Capacity 131 gal (US)
Cooling System 18.5 gal (US)
Hydraulic System - Tank 18.5 gal (US)
Hydraulic System - Total 38.6 gal (US)
DEF Tank 4.2 gal (US)
Engine Oil 9.5 gal (US)
Transmission - Differential - Final Drives 26 gal (US)
Tandem Housing - Each 34 gal (US)
Front Wheel Spindle Bearing Housing 0.24 gal (US)
Circle Drive Housing 2.6 gal (US)

Frame

Front Frame Structure - Width 14 in
Front Axle - Height to Center 26.4 in
Circle - Diameter 71.7 in
Front Frame Structure - Thickness 0.6 in
Front Frame Structure - Height 18.1 in
Circle - Blade Beam Thickness 2 in
Drawbar - Width 3 in
Front Axle - Wheel Lean 18° Left/17° Right
Front Axle - Total Oscillation per Side 35°
Drawbar - Height 8 in

Tandems

Sidewall Thickness - Outer 0.9 in
Sidewall Thickness - Inner 0.9 in
Tandem Oscillation - Front Up 15°
Tandem Oscillation - Front Down 25°
Height 25.5 in
Width 9.3 in
Drive Chain Pitch 2.5 in
Wheel Axle Spacing 72.5 in

Moldboard

Blade Width 18 ft
Arc Radius 16.3 in
Throat Clearance 5 in
Down Force - Maximum GVW 43861 lb
Blade Pull* - Base GVW 47216 lb
Blade Pull* - Maximum GVW 52878 lb
End Bit - Width 6 in
Down Force - Base GVW 34008 lb
Cutting Edge Thickness 1.4 in
Thickness 1 in
Width 18 ft
Cutting Edge Width 10 in
End Bit - Thickness 0.75 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.

Blade Range

Maximum Blade Position Angle 65°
Maximum Lift Above Ground 15.7 in
Maximum Depth of Cut 18.5 in
Maximum Shoulder Reach Outside of Tires - Right 103 in
Circle Centershift - Right 22 in
Maximum Shoulder Reach Outside of Tires - Left 103 in
Moldboard Sideshift - Right 31.1 in
Blade Tip Range - Backward
Moldboard Sideshift - Left 29.1 in
Circle Centershift - Left 27.2 in
Blade Tip Range - Forward 40°

Ripper

Shank Holder Spacing - Minimum 17.5 in
Ripping Depth - Maximum 17.8 in
Ripper Shank Holders 7
Penetration Force 30311 lb
Pry-Out Force 43700 lb
Machine Length Increase, Beam Raised 63.4 in
Shank Holder Spacing - Maximum 20 in

Weights

Operating Weight - Typically Equipped 74324 lb

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

Gross Vehicle Weight - Typically Equipped - Rear Axle 53830 lb
Gross Vehicle Weight - Base** - Total 72298 lb
Gross Vehicle Weight - Maximum Tested - Rear Axle 58753 lb
Gross Vehicle Weight - Maximum Tested - Front Axle 26125 lb
Gross Vehicle Weight - Typically Equipped - Front Axle 20494 lb
Gross Vehicle Weight - Base** - Front Axle 19837 lb
Gross Vehicle Weight - Maximum Tested - Total 84877 lb
Gross Vehicle Weight - Typically Equipped - Total 74324 lb
Gross Vehicle Weight - Base** - Rear Axle 52461 lb
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 Cylinders 122.6 in
Width - Outside Rear Tires 134.3 in
Height - Exhaust Stack 141.1 in
Length - Between Tandem Axles 72.5 in
Length - Front Axle to Mid Tandem 290 in
Width - Tire Center Lines 106.4 in
Length - Front Axle to Moldboard 120.7 in
Length - Counterweight to Ripper 474.4 in
Height - Front Axle Center 29.9 in
Width - Outside Front Tires 134.3 in
Length - Front Tire to Rear of Machine - Including Tow Hitch 417 in
Height - Top of Cab 147.5 in
Ground Clearance - Rear Axle 16.7 in

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

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 321 HP
Gear - Reverse 2nd 304 HP
Gear - Forward 1st 304 HP
Gear - Reverse 3rd-6th 311 HP
Gear - Forward 3rd 311 HP
Gear - Forward 5th 327 HP
Gear - Forward 7th 342 HP
Gear - Forward 2nd 304 HP
Gear - Reverse 1st 304 HP
Gear - Forward 6th 337 HP
Gear - Forward 8th 357 HP