18

Base Power (1st Gear) - Net: 304 hp / 227 kW
Operating Weight - Typically Equipped: 74324 lb / 33713 kg
Blade Width: 18 ft / 5.5 m

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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18 Product Brochure Motor Grader Rig Out Catalog 18 Poster

Specifications
Equipment
Related Products

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

Weights
Operating Weight - Typically Equipped	74324 lb / 33713 kg

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 / 36701 N·m
Brakes - Service	Oil-actuated, oil disc
Brakes - Secondary	Oil-actuated, oil-disc

Moldboard
Blade Width	18 ft / 5.5 m
Arc Radius	16.3 in / 413 mm
Throat Clearance	5 in / 126 mm
Down Force - Maximum GVW	43861 lb / 19895 kg
Blade Pull* - Base GVW	47216 lb / 21417 kg
Blade Pull* - Maximum GVW	52878 lb / 23985 kg
End Bit - Width	6 in / 152 mm
Down Force - Base GVW	34008 lb / 15426 kg
Cutting Edge Thickness	1.4 in / 35 mm
Thickness	1 in / 25 mm
Width	18 ft / 5.5 m
Cutting Edge Width	10 in / 254 mm
End Bit - Thickness	0.75 in / 19 mm
Height	31 in / 787 mm
Note	*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
Pump Type	Variable piston
Maximum System Pressure	3590 psi / 24750 kPa
Standby Pressure	856 psi / 5900 kPa
Pump Output*	74 gal/min / 280 l/min
Note	*Pump output measured at 2,150 rpm.

Operating Specifications
Forward - 6th	16 mile/h / 25.8 km/h
Forward - 2nd	3.8 mile/h / 6.1 km/h
Forward - 8th	32.1 mile/h / 51.7 km/h
Forward - 5th	11.8 mile/h / 19 km/h
Reverse - 3rd	6 mile/h / 9.7 km/h
Turning Radius - Outside Front Tires	30.5 ft / 9.3 m
Forward - 4th	7.6 mile/h / 12.3 km/h
Top Speed - Reverse	25.3 mile/h / 40.8 km/h
Forward - 7th	22 mile/h / 35.5 km/h
Articulation Angle - Left/Right	20°
Reverse - 1st	2.2 mile/h / 3.6 km/h
Forward - 3rd	5.5 mile/h / 8.9 km/h
Reverse - 4th	9.3 mile/h / 15 km/h
Forward - 1st	2.8 mile/h / 4.5 km/h
Top Speed - Forward	32.1 mile/h / 51.7 km/h
Reverse - 6th	25.3 mile/h / 40.8 km/h
Steering Range - Left/Right	47.5°
Reverse - 2nd	4.1 mile/h / 6.6 km/h
Reverse - 5th	17.4 mile/h / 28 km/h
Note	Calculated with no slip and 23.5R25 L-3 tires.

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

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

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

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

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

Weights Tier 4 Final/Stage IV/Japan 2014 (Tier 4 Final)*
Gross Vehicle Weight - Typically Equipped - Rear Axle	53830 lb / 24417 kg
Gross Vehicle Weight - Base** - Total	72298 lb / 32794 kg
Gross Vehicle Weight - Maximum Tested - Rear Axle	58753 lb / 26650 kg
Gross Vehicle Weight - Maximum Tested - Front Axle	26125 lb / 11850 kg
Gross Vehicle Weight - Typically Equipped - Front Axle	20494 lb / 9296 kg
Gross Vehicle Weight - Base** - Front Axle	19837 lb / 8998 kg
Gross Vehicle Weight - Maximum Tested - Total	84877 lb / 38500 kg
Gross Vehicle Weight - Typically Equipped - Total	74324 lb / 33713 kg
Gross Vehicle Weight - Base** - Rear Axle	52461 lb / 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	122.6 in / 3115 mm
Width - Outside Rear Tires	134.3 in / 3411 mm
Height - Exhaust Stack	141.1 in / 3584 mm
Length - Between Tandem Axles	72.5 in / 1841 mm
Length - Front Axle to Mid Tandem	290 in / 7365 mm
Width - Tire Center Lines	106.4 in / 2703 mm
Length - Front Axle to Moldboard	120.7 in / 3066 mm
Length - Counterweight to Ripper	474.4 in / 12051 mm
Height - Front Axle Center	29.9 in / 760 mm
Width - Outside Front Tires	134.3 in / 3411 mm
Length - Front Tire to Rear of Machine - Including Tow Hitch	417 in / 10593 mm
Height - Top of Cab	147.5 in / 3746 mm
Ground Clearance - Rear Axle	16.7 in / 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	309 hp / 227 kW
Gear - Forward 2nd	309 hp / 227 kW
Gear - Reverse 2nd	309 hp / 227 kW
Gear - Forward 4th	325 hp / 239 kW
Gear - Forward 6th	341 hp / 251 kW
Gear - Forward 5th	332 hp / 244 kW
Gear - Forward 8th	362 hp / 266 kW
Gear - Reverse 1st	309 hp / 227 kW
Gear - Forward 3rd	315 hp / 232 kW
Gear - Forward 7th	347 hp / 255 kW
Gear - Reverse 3rd-6th	315 hp / 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	321 hp / 239 kW
Gear - Reverse 2nd	304 hp / 227 kW
Gear - Forward 1st	304 hp / 227 kW
Gear - Reverse 3rd-6th	311 hp / 232 kW
Gear - Forward 3rd	311 hp / 232 kW
Gear - Forward 5th	327 hp / 244 kW
Gear - Forward 7th	342 hp / 255 kW
Gear - Forward 2nd	304 hp / 227 kW
Gear - Reverse 1st	304 hp / 227 kW
Gear - Forward 6th	337 hp / 251 kW
Gear - Forward 8th	357 hp / 266 kW

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.

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)

Grade

<p>Cat® Grade technologies combine digital design data, in-cab guidance, and automatic controls to enhance grading accuracy, reduce rework, and lower costs related to production earthmoving and rough, fine and finish grade applications.</p><p>Whether you're working on simple planes and slopes or complex contour designs, Grade technologies enable you to boost grading efficiency by as much as 50%, helping you get more work done – in less time and at a lower cost – than ever before.</p>

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Health

Health records information on critical machine parameters fleet-wide. Data is available in real-time or historical database. Linked with on-board monitoring systems, Health provides wireless or wired transfer of this critical data to the service center for processing and review. Health may also be integrated into a production database for expanded analysis.

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Fleet

Fleet is a fully integrated mine monitoring and management system that uses technology to improve productivity and maximize commodity value. Real-time interaction with mobile field equipment allows mine management to improve machine utilization, track material movement and monitor daily production against plan. Fleet is fully scalable to accommodate a growing fleet of machines or the need for additional capability and functionality.

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Technology Kits

Caterpillar provides solutions to help customers in any industry improve efficiency and enhance safety.

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