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Motor Graders

18

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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Overview

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.

Engine

UNITS:

Metric

Imperial

Base Power (1st Gear) - Net	227 kW	304 hp
Engine Model	Cat® C13	Cat® C13
Bore	130 mm	5.1 in
Stroke	157 mm	6.2 in
Speed at Rated Power	2,000 rpm	2,000 rpm
Standard - Ambient Capability	50 °C	122 °F
Base Power (1st Gear) - Net - Metric	227 kW	309 hp
VHP Range - Net	227-266 kW (304-357 hp)	227-266 kW (304-357 hp)
Maximum Torque - ISO 9249 - Tier 2/Stage II/Japan 2001 (Tier 2) Equivalent	1721 N·m	1270 lb/ft
Derating Altitude - Tier 2/Stage II/Japan 2001 (Tier 2) Equivalent	3711 m	12176 ft
Derating Altitude - Tier 3/Stage IIIA/Japan 2006 (Tier 3) Equivalent	3954 m	12973 ft
Maximum Torque - ISO 9249 - Tier 3/Stage IIIA/Japan 2006 (Tier 3) Equivalent	1721 N·m	1270 lb/ft
Standard - Fan Speed - Minimum	550 rpm	550 rpm
Emissions (1)	U.S. EPA Tier 4 Final/EU Stage V/Japan 2014 (Tier 4 Final)	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%	40%
Maximum Torque - ISO 9249 - Tier 4/Stage IV/Japan 2014 (Tier 4 Final)	1771 N·m	1306 lb/ft
Derating Altitude - Tier 4/Stage IV/Japan 2014 (Tier 4 Final)	3810 m	12500 ft
Torque Rise - Tier 2/Stage II/Japan 2001 (Tier 2) Equivalent	38%	38%
Standard - Fan Speed - Maximum	1,450 rpm	1,450 rpm
Emissions (2)	Tier 3/Stage IIIA/Japan 2006 (Tier 3) Equivalent Emission Standards	Tier 3/Stage IIIA/Japan 2006 (Tier 3) Equivalent Emission Standards
Torque Rise - Tier 3/Stage IIIA/Japan 2006 (Tier 3) Equivalent	38%	38%
VHP Range - Net - Metric	227-266 kW (309-362 hp)	227-266 kW (309-362 hp)
Emissions (3)	Tier 2/Stage II/Japan 2001 (Tier 2) Equivalent Emission Standards	Tier 2/Stage II/Japan 2001 (Tier 2) Equivalent Emission Standards
Displacement	12.5 l	763 in³
Number of Cylinders	6	6
Optimized VHP Range - Net	227-266 kW (304-357 hp)	227-266 kW (304-357 hp)

Weights

Operating Weight - Typically Equipped	33713 kg	74324 lb

Power Train

Forward/Reverse Gears	8 Forward/6 Reverse	8 Forward/6 Reverse
Transmission	Direct drive, power shift, countershaft	Direct drive, power shift, countershaft
Brakes - Parking	Spring applied, hydraulically released	Spring applied, hydraulically released
Brakes - Dynamic Brake Torque per Wheel	36701 N·m	27069.27 lb/ft
Brakes - Service	Oil-actuated, oil disc	Oil-actuated, oil disc
Brakes - Secondary	Oil-actuated, oil-disc	Oil-actuated, oil-disc

Moldboard

Blade Width	5.5 m	18 ft
Arc Radius	413 mm	16.3 in
Throat Clearance	126 mm	5 in
Down Force - Maximum GVW	19895 kg	43861 lb
Blade Pull* - Base GVW	21417 kg	47216 lb
Blade Pull* - Maximum GVW	23985 kg	52878 lb
End Bit - Width	152 mm	6 in
Down Force - Base GVW	15426 kg	34008 lb
Cutting Edge Thickness	35 mm	1.4 in
Thickness	25 mm	1 in
Width	5.5 m	18 ft
Cutting Edge Width	254 mm	10 in
End Bit - Thickness	19 mm	0.75 in
Height	787 mm	31 in
Note	*Blade pull calculated at 0.9 traction coefficient, which is equal to ideal no-slip conditions, and Gross Machine Weight.	*Blade pull calculated at 0.9 traction coefficient, which is equal to ideal no-slip conditions, and Gross Machine Weight.

Hydraulic System

Circuit Type	Electro-hydraulic load sensing, closed center	Electro-hydraulic load sensing, closed center
Pump Type	Variable piston	Variable piston
Maximum System Pressure	24750 kPa	3590 psi
Standby Pressure	5900 kPa	856 psi
Pump Output*	280 l/min	74 gal/min
Note	*Pump output measured at 2,150 rpm.	*Pump output measured at 2,150 rpm.

Operating Specifications

Forward - 6th	25.8 km/h	16.0 mile/h
Forward - 2nd	6.1 km/h	3.8 mile/h
Forward - 8th	51.7 km/h	32.1 mile/h
Forward - 5th	19.0 km/h	11.8 mile/h
Reverse - 3rd	9.7 km/h	6.0 mile/h
Turning Radius - Outside Front Tires	9.3 m	30.5 ft
Forward - 4th	12.3 km/h	7.6 mile/h
Top Speed - Reverse	40.8 km/h	25.3 mile/h
Forward - 7th	35.5 km/h	22.0 mile/h
Articulation Angle - Left/Right	20°	20°
Reverse - 1st	3.6 km/h	2.2 mile/h
Forward - 3rd	8.9 km/h	5.5 mile/h
Reverse - 4th	15.0 km/h	9.3 mile/h
Forward - 1st	4.5 km/h	2.8 mile/h
Top Speed - Forward	51.7 km/h	32.1 mile/h
Reverse - 6th	40.8 km/h	25.3 mile/h
Steering Range - Left/Right	47.5°	47.5°
Reverse - 2nd	6.6 km/h	4.1 mile/h
Reverse - 5th	28.0 km/h	17.4 mile/h
Note	Calculated with no slip and 23.5R25 L-3 tires.	Calculated with no slip and 23.5R25 L-3 tires.

Service Refill

Fuel Capacity	496 l	131 gal (US)
Cooling System	70 l	18.5 gal (US)
Hydraulic System - Tank	70 l	18.5 gal (US)
Hydraulic System - Total	146 l	38.6 gal (US)
DEF Tank	16 l	4.2 gal (US)
Engine Oil	36 l	9.5 gal (US)
Transmission - Differential - Final Drives	98.5 l	26 gal (US)
Tandem Housing - Each	129 l	34 gal (US)
Front Wheel Spindle Bearing Housing	0.9 l	0.24 gal (US)
Circle Drive Housing	10 l	2.6 gal (US)

Frame

Front Frame Structure - Width	356 mm	14.0 in
Front Axle - Height to Center	670 mm	26.4 in
Circle - Diameter	1822 mm	71.7 in
Front Frame Structure - Thickness	14 mm	0.6 in
Front Frame Structure - Height	460 mm	18.1 in
Circle - Blade Beam Thickness	50 mm	2 in
Drawbar - Width	76 mm	3 in
Front Axle - Wheel Lean	18° Left/17° Right	18° Left/17° Right
Front Axle - Total Oscillation per Side	35°	35°
Drawbar - Height	203 mm	8 in

Tandems

Sidewall Thickness - Outer	22 mm	0.9 in
Sidewall Thickness - Inner	22 mm	0.9 in
Tandem Oscillation - Front Up	15°	15°
Tandem Oscillation - Front Down	25°	25°
Height	648 mm	25.5 in
Width	236 mm	9.3 in
Drive Chain Pitch	63.5 mm	2.5 in
Wheel Axle Spacing	1841 mm	72.5 in

Blade Range

Maximum Blade Position Angle	65°	65°
Maximum Lift Above Ground	400 mm	15.7 in
Maximum Depth of Cut	470 mm	18.5 in
Maximum Shoulder Reach Outside of Tires - Right	2605 mm	103 in
Circle Centershift - Right	560 mm	22 in
Maximum Shoulder Reach Outside of Tires - Left	2605 mm	103 in
Moldboard Sideshift - Right	790 mm	31.1 in
Blade Tip Range - Backward	5°	5°
Moldboard Sideshift - Left	740 mm	29.1 in
Circle Centershift - Left	690 mm	27.2 in
Blade Tip Range - Forward	40°	40°

Ripper

Shank Holder Spacing - Minimum	445 mm	17.5 in
Ripping Depth - Maximum	452 mm	17.8 in
Ripper Shank Holders	7	7
Penetration Force	13749 kg	30311 lb
Pry-Out Force	19822 kg	43700 lb
Machine Length Increase, Beam Raised	1610 mm	63.4 in
Shank Holder Spacing - Maximum	500 mm	20 in

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

Gross Vehicle Weight - Typically Equipped - Rear Axle	24417 kg	53830 lb
Gross Vehicle Weight - Base** - Total	32794 kg	72298 lb
Gross Vehicle Weight - Maximum Tested - Rear Axle	26650 kg	58753 lb
Gross Vehicle Weight - Maximum Tested - Front Axle	11850 kg	26125 lb
Gross Vehicle Weight - Typically Equipped - Front Axle	9296 kg	20494 lb
Gross Vehicle Weight - Base** - Front Axle	8998 kg	19837 lb
Gross Vehicle Weight - Maximum Tested - Total	38500 kg	84877 lb
Gross Vehicle Weight - Typically Equipped - Total	33713 kg	74324 lb
Gross Vehicle Weight - Base** - Rear Axle	23796 kg	52461 lb
Note (2)	**Base operating weight calculated on standard machine configuration with 23.5R25 tires, full fuel tank operator and rops cab.	**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.	*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	122.6 in
Width - Outside Rear Tires	3411 mm	134.3 in
Height - Exhaust Stack	3584 mm	141.1 in
Length - Between Tandem Axles	1841 mm	72.5 in
Length - Front Axle to Mid Tandem	7365 mm	290 in
Width - Tire Center Lines	2703 mm	106.4 in
Length - Front Axle to Moldboard	3066 mm	120.7 in
Length - Counterweight to Ripper	12051 mm	474.4 in
Height - Front Axle Center	760 mm	29.9 in
Width - Outside Front Tires	3411 mm	134.3 in
Length - Front Tire to Rear of Machine - Including Tow Hitch	10593 mm	417 in
Height - Top of Cab	3746 mm	147.5 in
Ground Clearance - Rear Axle	423 mm	16.7 in

Standards

Sound	ISO 6394: 2008/ISO 6395: 2008/ISO 6396: 2008	ISO 6394: 2008/ISO 6395: 2008/ISO 6396: 2008
ROPS/FOPS	ISO 3471: 2008/ISO 3449: 2005	ISO 3471: 2008/ISO 3449: 2005
Brakes	ISO 3450: 2011	ISO 3450: 2011
Steering	ISO 5010: 2007	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	309 hp
Gear - Forward 2nd	227 kW	309 hp
Gear - Reverse 2nd	227 kW	309 hp
Gear - Forward 4th	239 kW	325 hp
Gear - Forward 6th	251 kW	341 hp
Gear - Forward 5th	244 kW	332 hp
Gear - Forward 8th	266 kW	362 hp
Gear - Reverse 1st	227 kW	309 hp
Gear - Forward 3rd	232 kW	315 hp
Gear - Forward 7th	255 kW	347 hp
Gear - Reverse 3rd-6th	232 kW	315 hp

Optional Tire Arrangements

Wheel Group - 19.5×25 MP (2)	Tires: 23.5R25 Bridgestone VKT 1 Star	Tires: 23.5R25 Bridgestone VKT 1 Star
Wheel Group - 19.5×25 MP (1)	Tires: 23.5R25 Bridgestone VKT 2 Star	Tires: 23.5R25 Bridgestone VKT 2 Star
Wheel Group - 19.5×25 MP (3)	Tires: 23.5R25 Bridgestone VJT 1 Star	Tires: 23.5R25 Bridgestone VJT 1 Star
Wheel Group - 19.5×25 MP (4)	Tires: 23.5R25 Michelin XHA 2 Star	Tires: 23.5R25 Michelin XHA 2 Star
Wheel Group - 19.5×25 MP (5)	Tires: 23.5R25 Michelin XLDD 2 Star L5	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	321 hp
Gear - Reverse 2nd	227 kW	304 hp
Gear - Forward 1st	227 kW	304 hp
Gear - Reverse 3rd-6th	232 kW	311 hp
Gear - Forward 3rd	232 kW	311 hp
Gear - Forward 5th	244 kW	327 hp
Gear - Forward 7th	255 kW	342 hp
Gear - Forward 2nd	227 kW	304 hp
Gear - Reverse 1st	227 kW	304 hp
Gear - Forward 6th	251 kW	337 hp
Gear - Forward 8th	266 kW	357 hp

Air Conditioning System

Air Conditioning	The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a or R1234yf. See the label or instruction manual for identification of the gas. - If equipped with R134a (Global Warming Potential = 1430), the system contains 2 kg (4.4 lb) of refrigerant which has a CO2 equivalent of 2.860 metric tonnes (3.152 tons).	The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a or R1234yf. See the label or instruction manual for identification of the gas. - If equipped with R134a (Global Warming Potential = 1430), the system contains 2 kg (4.4 lb) of refrigerant which has a CO2 equivalent of 2.860 metric tonnes (3.152 tons).

Features

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 a more aggressive blade angle and still be able to deposit the windrow away from the tires to protect tire life. More aggressive blade angles reduce the load on the machine and maintain better ground speed for enhanced performance.
Variable Horse Power (VHP) provides the ideal amount of power in all gears to efficiently perform diverse motor grader applications while protecting structure and drive train components.
With optimized combination of weight and balance the 18delivers enhanced traction and the ability to keep ground speed, especially when carrying a large load on the board.
Emissions reduction technology is transparent and automated with no action required from the operator.
Rear Ripper / Scarifier penetrates tough material fast for easier movement with the moldboard. Standard ripper with three shanks can add four more for additional versatility.
Multi-color, touch screen Information Display is the operator's gateway to monitoring machine performance and offers a convenient way of modifying machine parameters to tailor performance to the current task. Provides access to service information for initial troubleshooting.
Cat Product Link™ Elite is deeply integrated into the machine, helping take the guesswork out of equipment management. Easy access to timely information like machine location, hours, fuel usage, idle time and event codes via the online VisionLink® user interface can help effectively manage fleets and lower operating costs.
Manage your fleet of machines while reducing fuel burn with Cat Production Measurement System option. The Efficiency Coach and Application Segmentation work together to monitor operators and machines simultaneously. Measure your jobsite’s efficiency and productivity from anywhere on the website.

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 can be removed and reinstalled without disturbing other components.
Eco Mode improves fuel economy by reducing high idle engine speed while maintaining machine power. ECO Mode controls the high engine idle speed (capped at 1,900 rpm in working gears) to ensure the engine is performing as efficiently as possible. Provides significant fuel savings especially in operations that typically run light to moderate loads.
Center shift section of the front frame is made of heavy duty steel casting which improves stress distribution to this high load area for enhanced durability.
The rear frame structure is lengthened to provide easy service access to components in the engine enclosure as well as improve machine balance.
Front axle steering cylinder has been designed to enhance durability and hydraulic hoses have been routed to improve reliability.
A front guard helps protect the front axle from rocks or other debris that could damage the axle or its components.
The transmission guard provides a steel protection from ground debris.
Modular cooling package makes for simple removal and installation of components on the cooling system which reduces service time.
Engine enclosure doors provide complete and easy access to the engine without the impediment of any enclosure post.
Extended maintenance intervals reduce the number of touches and downtime.
Ok to Start and critically low fluid monitoring systems help prevent critical components from damage when low fluid levels are present. All information is available via the Information Display within the cab, and diagnostic codes are logged.

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 numerous safety features such as but not limited to -

Access to Tandem
Light Emitting Diode (LED) Enclosure Service Lights
Seat Belt Indication
Fire Suppression Ready System
Rearview Camera
Optional Access Platform
Optional Service Access Platform

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 operator training and providing you with versatile work tools.

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.

Downloads

18 Product Brochure Download

Mining Motor Grader Rig Out Catalog Download

18 Poster Download

Overview

Engine

UNITS:

Metric

Imperial

Base Power (1st Gear) - Net	227 kW	304 hp
Engine Model	Cat® C13	Cat® C13
Bore	130 mm	5.1 in
Stroke	157 mm	6.2 in
Speed at Rated Power	2,000 rpm	2,000 rpm
Standard - Ambient Capability	50 °C	122 °F
Base Power (1st Gear) - Net - Metric	227 kW	309 hp
VHP Range - Net	227-266 kW (304-357 hp)	227-266 kW (304-357 hp)
Maximum Torque - ISO 9249 - Tier 2/Stage II/Japan 2001 (Tier 2) Equivalent	1721 N·m	1270 lb/ft
Derating Altitude - Tier 2/Stage II/Japan 2001 (Tier 2) Equivalent	3711 m	12176 ft
Derating Altitude - Tier 3/Stage IIIA/Japan 2006 (Tier 3) Equivalent	3954 m	12973 ft
Maximum Torque - ISO 9249 - Tier 3/Stage IIIA/Japan 2006 (Tier 3) Equivalent	1721 N·m	1270 lb/ft
Standard - Fan Speed - Minimum	550 rpm	550 rpm
Emissions (1)	U.S. EPA Tier 4 Final/EU Stage V/Japan 2014 (Tier 4 Final)	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%	40%
Maximum Torque - ISO 9249 - Tier 4/Stage IV/Japan 2014 (Tier 4 Final)	1771 N·m	1306 lb/ft
Derating Altitude - Tier 4/Stage IV/Japan 2014 (Tier 4 Final)	3810 m	12500 ft
Torque Rise - Tier 2/Stage II/Japan 2001 (Tier 2) Equivalent	38%	38%
Standard - Fan Speed - Maximum	1,450 rpm	1,450 rpm
Emissions (2)	Tier 3/Stage IIIA/Japan 2006 (Tier 3) Equivalent Emission Standards	Tier 3/Stage IIIA/Japan 2006 (Tier 3) Equivalent Emission Standards
Torque Rise - Tier 3/Stage IIIA/Japan 2006 (Tier 3) Equivalent	38%	38%
VHP Range - Net - Metric	227-266 kW (309-362 hp)	227-266 kW (309-362 hp)
Emissions (3)	Tier 2/Stage II/Japan 2001 (Tier 2) Equivalent Emission Standards	Tier 2/Stage II/Japan 2001 (Tier 2) Equivalent Emission Standards
Displacement	12.5 l	763 in³
Number of Cylinders	6	6
Optimized VHP Range - Net	227-266 kW (304-357 hp)	227-266 kW (304-357 hp)

Weights

Operating Weight - Typically Equipped	33713 kg	74324 lb

Power Train

Forward/Reverse Gears	8 Forward/6 Reverse	8 Forward/6 Reverse
Transmission	Direct drive, power shift, countershaft	Direct drive, power shift, countershaft
Brakes - Parking	Spring applied, hydraulically released	Spring applied, hydraulically released
Brakes - Dynamic Brake Torque per Wheel	36701 N·m	27069.27 lb/ft
Brakes - Service	Oil-actuated, oil disc	Oil-actuated, oil disc
Brakes - Secondary	Oil-actuated, oil-disc	Oil-actuated, oil-disc

Moldboard

Blade Width	5.5 m	18 ft
Arc Radius	413 mm	16.3 in
Throat Clearance	126 mm	5 in
Down Force - Maximum GVW	19895 kg	43861 lb
Blade Pull* - Base GVW	21417 kg	47216 lb
Blade Pull* - Maximum GVW	23985 kg	52878 lb
End Bit - Width	152 mm	6 in
Down Force - Base GVW	15426 kg	34008 lb
Cutting Edge Thickness	35 mm	1.4 in
Thickness	25 mm	1 in
Width	5.5 m	18 ft
Cutting Edge Width	254 mm	10 in
End Bit - Thickness	19 mm	0.75 in
Height	787 mm	31 in
Note	*Blade pull calculated at 0.9 traction coefficient, which is equal to ideal no-slip conditions, and Gross Machine Weight.	*Blade pull calculated at 0.9 traction coefficient, which is equal to ideal no-slip conditions, and Gross Machine Weight.

Hydraulic System

Circuit Type	Electro-hydraulic load sensing, closed center	Electro-hydraulic load sensing, closed center
Pump Type	Variable piston	Variable piston
Maximum System Pressure	24750 kPa	3590 psi
Standby Pressure	5900 kPa	856 psi
Pump Output*	280 l/min	74 gal/min
Note	*Pump output measured at 2,150 rpm.	*Pump output measured at 2,150 rpm.

Operating Specifications

Forward - 6th	25.8 km/h	16.0 mile/h
Forward - 2nd	6.1 km/h	3.8 mile/h
Forward - 8th	51.7 km/h	32.1 mile/h
Forward - 5th	19.0 km/h	11.8 mile/h
Reverse - 3rd	9.7 km/h	6.0 mile/h
Turning Radius - Outside Front Tires	9.3 m	30.5 ft
Forward - 4th	12.3 km/h	7.6 mile/h
Top Speed - Reverse	40.8 km/h	25.3 mile/h
Forward - 7th	35.5 km/h	22.0 mile/h
Articulation Angle - Left/Right	20°	20°
Reverse - 1st	3.6 km/h	2.2 mile/h
Forward - 3rd	8.9 km/h	5.5 mile/h
Reverse - 4th	15.0 km/h	9.3 mile/h
Forward - 1st	4.5 km/h	2.8 mile/h
Top Speed - Forward	51.7 km/h	32.1 mile/h
Reverse - 6th	40.8 km/h	25.3 mile/h
Steering Range - Left/Right	47.5°	47.5°
Reverse - 2nd	6.6 km/h	4.1 mile/h
Reverse - 5th	28.0 km/h	17.4 mile/h
Note	Calculated with no slip and 23.5R25 L-3 tires.	Calculated with no slip and 23.5R25 L-3 tires.

Service Refill

Fuel Capacity	496 l	131 gal (US)
Cooling System	70 l	18.5 gal (US)
Hydraulic System - Tank	70 l	18.5 gal (US)
Hydraulic System - Total	146 l	38.6 gal (US)
DEF Tank	16 l	4.2 gal (US)
Engine Oil	36 l	9.5 gal (US)
Transmission - Differential - Final Drives	98.5 l	26 gal (US)
Tandem Housing - Each	129 l	34 gal (US)
Front Wheel Spindle Bearing Housing	0.9 l	0.24 gal (US)
Circle Drive Housing	10 l	2.6 gal (US)

Frame

Front Frame Structure - Width	356 mm	14.0 in
Front Axle - Height to Center	670 mm	26.4 in
Circle - Diameter	1822 mm	71.7 in
Front Frame Structure - Thickness	14 mm	0.6 in
Front Frame Structure - Height	460 mm	18.1 in
Circle - Blade Beam Thickness	50 mm	2 in
Drawbar - Width	76 mm	3 in
Front Axle - Wheel Lean	18° Left/17° Right	18° Left/17° Right
Front Axle - Total Oscillation per Side	35°	35°
Drawbar - Height	203 mm	8 in

Tandems

Sidewall Thickness - Outer	22 mm	0.9 in
Sidewall Thickness - Inner	22 mm	0.9 in
Tandem Oscillation - Front Up	15°	15°
Tandem Oscillation - Front Down	25°	25°
Height	648 mm	25.5 in
Width	236 mm	9.3 in
Drive Chain Pitch	63.5 mm	2.5 in
Wheel Axle Spacing	1841 mm	72.5 in

Blade Range

Maximum Blade Position Angle	65°	65°
Maximum Lift Above Ground	400 mm	15.7 in
Maximum Depth of Cut	470 mm	18.5 in
Maximum Shoulder Reach Outside of Tires - Right	2605 mm	103 in
Circle Centershift - Right	560 mm	22 in
Maximum Shoulder Reach Outside of Tires - Left	2605 mm	103 in
Moldboard Sideshift - Right	790 mm	31.1 in
Blade Tip Range - Backward	5°	5°
Moldboard Sideshift - Left	740 mm	29.1 in
Circle Centershift - Left	690 mm	27.2 in
Blade Tip Range - Forward	40°	40°

Ripper

Shank Holder Spacing - Minimum	445 mm	17.5 in
Ripping Depth - Maximum	452 mm	17.8 in
Ripper Shank Holders	7	7
Penetration Force	13749 kg	30311 lb
Pry-Out Force	19822 kg	43700 lb
Machine Length Increase, Beam Raised	1610 mm	63.4 in
Shank Holder Spacing - Maximum	500 mm	20 in

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

Gross Vehicle Weight - Typically Equipped - Rear Axle	24417 kg	53830 lb
Gross Vehicle Weight - Base** - Total	32794 kg	72298 lb
Gross Vehicle Weight - Maximum Tested - Rear Axle	26650 kg	58753 lb
Gross Vehicle Weight - Maximum Tested - Front Axle	11850 kg	26125 lb
Gross Vehicle Weight - Typically Equipped - Front Axle	9296 kg	20494 lb
Gross Vehicle Weight - Base** - Front Axle	8998 kg	19837 lb
Gross Vehicle Weight - Maximum Tested - Total	38500 kg	84877 lb
Gross Vehicle Weight - Typically Equipped - Total	33713 kg	74324 lb
Gross Vehicle Weight - Base** - Rear Axle	23796 kg	52461 lb
Note (2)	**Base operating weight calculated on standard machine configuration with 23.5R25 tires, full fuel tank operator and rops cab.	**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.	*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	122.6 in
Width - Outside Rear Tires	3411 mm	134.3 in
Height - Exhaust Stack	3584 mm	141.1 in
Length - Between Tandem Axles	1841 mm	72.5 in
Length - Front Axle to Mid Tandem	7365 mm	290 in
Width - Tire Center Lines	2703 mm	106.4 in
Length - Front Axle to Moldboard	3066 mm	120.7 in
Length - Counterweight to Ripper	12051 mm	474.4 in
Height - Front Axle Center	760 mm	29.9 in
Width - Outside Front Tires	3411 mm	134.3 in
Length - Front Tire to Rear of Machine - Including Tow Hitch	10593 mm	417 in
Height - Top of Cab	3746 mm	147.5 in
Ground Clearance - Rear Axle	423 mm	16.7 in

Standards

Sound	ISO 6394: 2008/ISO 6395: 2008/ISO 6396: 2008	ISO 6394: 2008/ISO 6395: 2008/ISO 6396: 2008
ROPS/FOPS	ISO 3471: 2008/ISO 3449: 2005	ISO 3471: 2008/ISO 3449: 2005
Brakes	ISO 3450: 2011	ISO 3450: 2011
Steering	ISO 5010: 2007	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	309 hp
Gear - Forward 2nd	227 kW	309 hp
Gear - Reverse 2nd	227 kW	309 hp
Gear - Forward 4th	239 kW	325 hp
Gear - Forward 6th	251 kW	341 hp
Gear - Forward 5th	244 kW	332 hp
Gear - Forward 8th	266 kW	362 hp
Gear - Reverse 1st	227 kW	309 hp
Gear - Forward 3rd	232 kW	315 hp
Gear - Forward 7th	255 kW	347 hp
Gear - Reverse 3rd-6th	232 kW	315 hp

Optional Tire Arrangements

Wheel Group - 19.5×25 MP (2)	Tires: 23.5R25 Bridgestone VKT 1 Star	Tires: 23.5R25 Bridgestone VKT 1 Star
Wheel Group - 19.5×25 MP (1)	Tires: 23.5R25 Bridgestone VKT 2 Star	Tires: 23.5R25 Bridgestone VKT 2 Star
Wheel Group - 19.5×25 MP (3)	Tires: 23.5R25 Bridgestone VJT 1 Star	Tires: 23.5R25 Bridgestone VJT 1 Star
Wheel Group - 19.5×25 MP (4)	Tires: 23.5R25 Michelin XHA 2 Star	Tires: 23.5R25 Michelin XHA 2 Star
Wheel Group - 19.5×25 MP (5)	Tires: 23.5R25 Michelin XLDD 2 Star L5	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	321 hp
Gear - Reverse 2nd	227 kW	304 hp
Gear - Forward 1st	227 kW	304 hp
Gear - Reverse 3rd-6th	232 kW	311 hp
Gear - Forward 3rd	232 kW	311 hp
Gear - Forward 5th	244 kW	327 hp
Gear - Forward 7th	255 kW	342 hp
Gear - Forward 2nd	227 kW	304 hp
Gear - Reverse 1st	227 kW	304 hp
Gear - Forward 6th	251 kW	337 hp
Gear - Forward 8th	266 kW	357 hp

Air Conditioning System

Air Conditioning	The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a or R1234yf. See the label or instruction manual for identification of the gas. - If equipped with R134a (Global Warming Potential = 1430), the system contains 2 kg (4.4 lb) of refrigerant which has a CO2 equivalent of 2.860 metric tonnes (3.152 tons).	The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a or R1234yf. See the label or instruction manual for identification of the gas. - If equipped with R134a (Global Warming Potential = 1430), the system contains 2 kg (4.4 lb) of refrigerant which has a CO2 equivalent of 2.860 metric tonnes (3.152 tons).

Features

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 a more aggressive blade angle and still be able to deposit the windrow away from the tires to protect tire life. More aggressive blade angles reduce the load on the machine and maintain better ground speed for enhanced performance.
Variable Horse Power (VHP) provides the ideal amount of power in all gears to efficiently perform diverse motor grader applications while protecting structure and drive train components.
With optimized combination of weight and balance the 18delivers enhanced traction and the ability to keep ground speed, especially when carrying a large load on the board.
Emissions reduction technology is transparent and automated with no action required from the operator.
Rear Ripper / Scarifier penetrates tough material fast for easier movement with the moldboard. Standard ripper with three shanks can add four more for additional versatility.
Multi-color, touch screen Information Display is the operator's gateway to monitoring machine performance and offers a convenient way of modifying machine parameters to tailor performance to the current task. Provides access to service information for initial troubleshooting.
Cat Product Link™ Elite is deeply integrated into the machine, helping take the guesswork out of equipment management. Easy access to timely information like machine location, hours, fuel usage, idle time and event codes via the online VisionLink® user interface can help effectively manage fleets and lower operating costs.
Manage your fleet of machines while reducing fuel burn with Cat Production Measurement System option. The Efficiency Coach and Application Segmentation work together to monitor operators and machines simultaneously. Measure your jobsite’s efficiency and productivity from anywhere on the website.

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 can be removed and reinstalled without disturbing other components.
Eco Mode improves fuel economy by reducing high idle engine speed while maintaining machine power. ECO Mode controls the high engine idle speed (capped at 1,900 rpm in working gears) to ensure the engine is performing as efficiently as possible. Provides significant fuel savings especially in operations that typically run light to moderate loads.
Center shift section of the front frame is made of heavy duty steel casting which improves stress distribution to this high load area for enhanced durability.
The rear frame structure is lengthened to provide easy service access to components in the engine enclosure as well as improve machine balance.
Front axle steering cylinder has been designed to enhance durability and hydraulic hoses have been routed to improve reliability.
A front guard helps protect the front axle from rocks or other debris that could damage the axle or its components.
The transmission guard provides a steel protection from ground debris.
Modular cooling package makes for simple removal and installation of components on the cooling system which reduces service time.
Engine enclosure doors provide complete and easy access to the engine without the impediment of any enclosure post.
Extended maintenance intervals reduce the number of touches and downtime.
Ok to Start and critically low fluid monitoring systems help prevent critical components from damage when low fluid levels are present. All information is available via the Information Display within the cab, and diagnostic codes are logged.

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 numerous safety features such as but not limited to -

Access to Tandem
Light Emitting Diode (LED) Enclosure Service Lights
Seat Belt Indication
Fire Suppression Ready System
Rearview Camera
Optional Access Platform
Optional Service Access Platform

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 operator training and providing you with versatile work tools.

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