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18

Motor Graders

The 18 builds on the success of the 16 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, and enhanced safety.

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Base Power (1st Gear) - Net 227 kW
Engine Model Cat® C13
Bore 130 mm
Stroke 157 mm

Availability Contact Dealer

OVERVIEW

Keep Haul Roads Productive and Efficient

FEATURES & BENEFITS

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... Read more

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... Read more

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 18has nume... Read more

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 operat... Read more

SPECIFICATIONS FOR 18

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Engine
Base Power (1st Gear) - Net 227 kW
Engine Model Cat® C13
Bore 130 mm
Stroke 157 mm
Speed at Rated Power 2,000 rpm
Standard - Ambient Capability 50 °C
Base Power (1st Gear) - Net - Metric 227 kW
VHP Range - Net 227-266 kW (304-357 hp)
Maximum Torque - ISO 9249 - Tier 2/Stage II/Japan 2001 (Tier 2) Equivalent 1721 N·m
Derating Altitude - Tier 2/Stage II/Japan 2001 (Tier 2) Equivalent 3711 m
Derating Altitude - Tier 3/Stage IIIA/Japan 2006 (Tier 3) Equivalent 3954 m
Maximum Torque - ISO 9249 - Tier 3/Stage IIIA/Japan 2006 (Tier 3) Equivalent 1721 N·m
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) 1771 N·m
Derating Altitude - Tier 4/Stage IV/Japan 2014 (Tier 4 Final) 3810 m
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 12.5 l
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 36701 N·m
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 24750 kPa
Standby Pressure 5900 kPa
Pump Output* 280 l/min
Note *Pump output measured at 2,150 rpm.
Operating Specifications
Forward - 6th 25.8 km/h
Forward - 2nd 6.1 km/h
Forward - 8th 51.7 km/h
Forward - 5th 19 km/h
Reverse - 3rd 9.7 km/h
Turning Radius - Outside Front Tires 9.3 m
Forward - 4th 12.3 km/h
Top Speed - Reverse 40.8 km/h
Forward - 7th 35.5 km/h
Articulation Angle - Left/Right 20°
Reverse - 1st 3.6 km/h
Forward - 3rd 8.9 km/h
Reverse - 4th 15 km/h
Forward - 1st 4.5 km/h
Top Speed - Forward 51.7 km/h
Reverse - 6th 40.8 km/h
Steering Range - Left/Right 47.5°
Reverse - 2nd 6.6 km/h
Reverse - 5th 28 km/h
Note Calculated with no slip and 23.5R25 L-3 tires.
Service Refill
Fuel Capacity 496 l
Cooling System 70 l
Hydraulic System - Tank 70 l
Hydraulic System - Total 146 l
DEF Tank 16 l
Engine Oil 36 l
Transmission - Differential - Final Drives 98.5 l
Tandem Housing - Each 129 l
Front Wheel Spindle Bearing Housing 0.9 l
Circle Drive Housing 10 l
Frame
Front Frame Structure - Width 356 mm
Front Axle - Height to Center 670 mm
Circle - Diameter 1822 mm
Front Frame Structure - Thickness 14 mm
Front Frame Structure - Height 460 mm
Circle - Blade Beam Thickness 50 mm
Drawbar - Width 76 mm
Front Axle - Wheel Lean 18° Left/17° Right
Front Axle - Total Oscillation per Side 35°
Drawbar - Height 203 mm
Tandems
Sidewall Thickness - Outer 22 mm
Sidewall Thickness - Inner 22 mm
Tandem Oscillation - Front Up 15°
Tandem Oscillation - Front Down 25°
Height 648 mm
Width 236 mm
Drive Chain Pitch 63.5 mm
Wheel Axle Spacing 1841 mm
Moldboard
Blade Width 5.5 m
Arc Radius 413 mm
Throat Clearance 126 mm
Down Force - Maximum GVW 19895 kg
Blade Pull* - Base GVW 21417 kg
Blade Pull* - Maximum GVW 23985 kg
End Bit - Width 152 mm
Down Force - Base GVW 15426 kg
Cutting Edge Thickness 35 mm
Thickness 25 mm
Width 5.5 m
Cutting Edge Width 254 mm
End Bit - Thickness 19 mm
Height 787 mm
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 400 mm
Maximum Depth of Cut 470 mm
Maximum Shoulder Reach Outside of Tires - Right 2605 mm
Circle Centershift - Right 560 mm
Maximum Shoulder Reach Outside of Tires - Left 2605 mm
Moldboard Sideshift - Right 790 mm
Blade Tip Range - Backward
Moldboard Sideshift - Left 740 mm
Circle Centershift - Left 690 mm
Blade Tip Range - Forward 40°
Ripper
Shank Holder Spacing - Minimum 445 mm
Ripping Depth - Maximum 452 mm
Ripper Shank Holders 7
Penetration Force 13749 kg
Pry-Out Force 19822 kg
Machine Length Increase, Beam Raised 1610 mm
Shank Holder Spacing - Maximum 500 mm
Weights
Operating Weight - Typically Equipped 33713 kg
Weights Tier 4 Final/Stage IV/Japan 2014 (Tier 4 Final)*
Gross Vehicle Weight - Typically Equipped - Rear Axle 24417 kg
Gross Vehicle Weight - Base** - Total 32794 kg
Gross Vehicle Weight - Maximum Tested - Rear Axle 26650 kg
Gross Vehicle Weight - Maximum Tested - Front Axle 11850 kg
Gross Vehicle Weight - Typically Equipped - Front Axle 9296 kg
Gross Vehicle Weight - Base** - Front Axle 8998 kg
Gross Vehicle Weight - Maximum Tested - Total 38500 kg
Gross Vehicle Weight - Typically Equipped - Total 33713 kg
Gross Vehicle Weight - Base** - Rear Axle 23796 kg
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 3115 mm
Width - Outside Rear Tires 3411 mm
Height - Exhaust Stack 3584 mm
Length - Between Tandem Axles 1841 mm
Length - Front Axle to Mid Tandem 7365 mm
Width - Tire Center Lines 2703 mm
Length - Front Axle to Moldboard 3066 mm
Length - Counterweight to Ripper 12051 mm
Height - Front Axle Center 760 mm
Width - Outside Front Tires 3411 mm
Length - Front Tire to Rear of Machine - Including Tow Hitch 10593 mm
Height - Top of Cab 3746 mm
Ground Clearance - Rear Axle 423 mm
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 227 kW
Gear - Forward 2nd 227 kW
Gear - Reverse 2nd 227 kW
Gear - Forward 4th 239 kW
Gear - Forward 6th 251 kW
Gear - Forward 5th 244 kW
Gear - Forward 8th 266 kW
Gear - Reverse 1st 227 kW
Gear - Forward 3rd 232 kW
Gear - Forward 7th 255 kW
Gear - Reverse 3rd-6th 232 kW
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 239 kW
Gear - Reverse 2nd 227 kW
Gear - Forward 1st 227 kW
Gear - Reverse 3rd-6th 232 kW
Gear - Forward 3rd 232 kW
Gear - Forward 5th 244 kW
Gear - Forward 7th 255 kW
Gear - Forward 2nd 227 kW
Gear - Reverse 1st 227 kW
Gear - Forward 6th 251 kW
Gear - Forward 8th 266 kW

SELECT MODELS TO COMPARE

Motor Graders

12K

Base Power (1st Gear) - Net 108 kW
Engine Model Cat C7
Displacement 7.2 l
Bore 105 mm
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140

Base Power (1st Gear) - Net 136 kW
Engine Model Cat C7
Bore 110 mm
Stroke 127 mm
Motor Graders

16 GC

Engine Model Cat® C13
Emissions Equivalent to U.S. EPA Tier 3/EU Stage IIIA
Displacement 12.5 l
Bore 130 mm
Motor Graders

18

Base Power (1st Gear) - Net 227 kW
Engine Model Cat® C13
Bore 130 mm
Stroke 157 mm
Motor Graders

160 / 160 AWD

Base Power (1st Gear) - Net 159 kW
Engine Model Cat® C9
Base Power (1st Gear, AWD Off) - Net 159 kW
Base Power (1st Gear) - Net - Metric 159 kW
Motor Graders

16

Engine Model Cat® C13
Bore 130 mm
Stroke 157 mm
Speed at Rated Power 2,000 rpm
Motor Graders

160K

Base Power (1st Gear) - Net 139 kW
Engine Model Cat® C7
Displacement 7.2 l
Bore 105 mm
Motor Graders

120

Net Power Range (Tier 3) 123 kW
Engine Model Cat 7.1
Engine RPM 2,000
Emissions China Nonroad Stage III emission standards, equivalent to U.S. EPA Tier 3/EU Stage IIIA, and meets India CEV Stage V emission standards
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