Cat Motor Graders 18 | Mining

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Specifications

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.

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°

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

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
Optimized VHP Range - Net

227-266 kW (304-357 hp)
Displacement

763 in³ 12.5 l
Number of Cylinders

6

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

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.

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.

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.

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

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

Ripper

Shank Holder Spacing - Minimum

17.5 in 445 mm
Ripping Depth - Maximum

17.8 in 452 mm
Shank Holder Spacing - Maximum

20 in 500 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

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

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

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

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

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

Weights

Operating Weight - Typically Equipped

74324 lb 33713 kg

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.

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 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.

Equipment Info