18 Motor Grader
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 ...
Engine
- Base Power (1st Gear) - Net
- 304hp
- Engine Model
- Cat® C13
- Bore
- 5.1in
- Stroke
- 6.2in
- Speed at Rated Power
- 2,000 rpm
- Optimized VHP Range - Net
- 227-266 kW (304-357 hp)
- Emissions (3)
- Tier 2/Stage II/Japan 2001 (Tier 2) 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)
- Standard - Fan Speed - Maximum
- 1,450 rpm
- Emissions (2)
- Tier 3/Stage IIIA/Japan 2006 (Tier 3) Equivalent Emission Standards
- Torque Rise - Tier 2/Stage II/Japan 2001 (Tier 2) Equivalent
- 38%
- Maximum Torque - ISO 9249 - Tier 4/Stage IV/Japan 2014 (Tier 4 Final)
- 1306lb/ft
- Derating Altitude - Tier 4/Stage IV/Japan 2014 (Tier 4 Final)
- 12500ft
- Torque Rise - Tier 4/Stage IV/Japan 2014 (Tier 4 Final)
- 40%
- Standard - Fan Speed - Minimum
- 550 rpm
- Emissions (1)
- U.S. EPA Tier 4 Final/EU Stage V/Japan 2014 (Tier 4 Final)
- Maximum Torque - ISO 9249 - Tier 3/Stage IIIA/Japan 2006 (Tier 3) Equivalent
- 1270lb/ft
- Derating Altitude - Tier 3/Stage IIIA/Japan 2006 (Tier 3) Equivalent
- 12973ft
- Maximum Torque - ISO 9249 - Tier 2/Stage II/Japan 2001 (Tier 2) Equivalent
- 1270lb/ft
- Derating Altitude - Tier 2/Stage II/Japan 2001 (Tier 2) Equivalent
- 12176ft
- Base Power (1st Gear) - Net - Metric
- 309hp
- VHP Range - Net
- 227-266 kW (304-357 hp)
- Standard - Ambient Capability
- 122°F
- Displacement
- 763in³
- Number of Cylinders
- 6
Weights
- Operating Weight - Typically Equipped
- 74324lb
Moldboard
- Blade Width
- 18ft
- Arc Radius
- 16.3in
- Throat Clearance
- 5in
- Height
- 31in
- End Bit - Thickness
- 0.75in
- Cutting Edge Width
- 10in
- Width
- 18ft
- Thickness
- 1in
- Cutting Edge Thickness
- 1.4in
- Down Force - Base GVW
- 34008lb
- End Bit - Width
- 6in
- Blade Pull* - Maximum GVW
- 52878lb
- Blade Pull* - Base GVW
- 47216lb
- Down Force - Maximum GVW
- 43861lb
- Note
- *Blade pull calculated at 0.9 traction coefficient, which is equal to ideal no-slip conditions, and Gross Machine Weight.
Service Refill
- Fuel Capacity
- 131gal (US)
- Cooling System
- 18.5gal (US)
- Hydraulic System - Total
- 38.6gal (US)
- Hydraulic System - Tank
- 18.5gal (US)
- DEF Tank
- 4.2gal (US)
- Engine Oil
- 9.5gal (US)
- Transmission - Differential - Final Drives
- 26gal (US)
- Tandem Housing - Each
- 34gal (US)
- Front Wheel Spindle Bearing Housing
- 0.24gal (US)
- Circle Drive Housing
- 2.6gal (US)
Power Train
- Forward/Reverse Gears
- 8 Forward/6 Reverse
- Transmission
- Direct drive, power shift, countershaft
- Brakes - Secondary
- Oil-actuated, oil-disc
- Brakes - Service
- Oil-actuated, oil disc
- Brakes - Parking
- Spring applied, hydraulically released
- Brakes - Dynamic Brake Torque per Wheel
- 27069.27lb/ft
Hydraulic System
- Circuit Type
- Electro-hydraulic load sensing, closed center
- Pump Type
- Variable piston
- Maximum System Pressure
- 3590psi
- Standby Pressure
- 856psi
- Note
- *Pump output measured at 2,150 rpm.
- Pump Output*
- 74gal/min
Blade Range
- Maximum Blade Position Angle
- 65°
- Maximum Lift Above Ground
- 15.7in
- Maximum Depth of Cut
- 18.5in
- Blade Tip Range - Forward
- 40°
- Circle Centershift - Left
- 27.2in
- Moldboard Sideshift - Left
- 29.1in
- Blade Tip Range - Backward
- 5°
- Moldboard Sideshift - Right
- 31.1in
- Maximum Shoulder Reach Outside of Tires - Left
- 103in
- Circle Centershift - Right
- 22in
- Maximum Shoulder Reach Outside of Tires - Right
- 103in
Optional Tire Arrangements
- Wheel Group - 19.5×25 MP (3)
- Tires: 23.5R25 Bridgestone VJT 1 Star
- Wheel Group - 19.5×25 MP (1)
- Tires: 23.5R25 Bridgestone VKT 2 Star
- Wheel Group - 19.5×25 MP (2)
- Tires: 23.5R25 Bridgestone VKT 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 7th
- 342hp
- Gear - Forward 5th
- 327hp
- Gear - Forward 3rd
- 311hp
- Gear - Reverse 3rd-6th
- 311hp
- Gear - Forward 1st
- 304hp
- Gear - Reverse 2nd
- 304hp
- Gear - Forward 4th
- 321hp
- Gear - Forward 2nd
- 304hp
- Gear - Reverse 1st
- 304hp
- Gear - Forward 6th
- 337hp
- Gear - Forward 8th
- 357hp
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 5th
- 332hp
- Gear - Forward 6th
- 341hp
- Gear - Forward 4th
- 325hp
- Gear - Reverse 2nd
- 309hp
- Gear - Forward 2nd
- 309hp
- Gear - Forward 1st
- 309hp
- Gear - Forward 8th
- 362hp
- Gear - Reverse 1st
- 309hp
- Gear - Forward 3rd
- 315hp
- Gear - Forward 7th
- 347hp
- Gear - Reverse 3rd-6th
- 315hp
Standards
- Brakes
- ISO 3450: 2011
- Steering
- ISO 5010: 2007
- ROPS/FOPS
- ISO 3471: 2008/ISO 3449: 2005
- Sound
- ISO 6394: 2008/ISO 6395: 2008/ISO 6396: 2008
Dimensions (Approximate)
- Ground Clearance - Rear Axle
- 16.7in
- Height - Top of Cab
- 147.5in
- Length - Front Tire to Rear of Machine - Including Tow Hitch
- 417in
- Width - Outside Front Tires
- 134.3in
- Height - Front Axle Center
- 29.9in
- Length - Counterweight to Ripper
- 474.4in
- Length - Front Axle to Moldboard
- 120.7in
- Width - Tire Center Lines
- 106.4in
- Length - Front Axle to Mid Tandem
- 290in
- Length - Between Tandem Axles
- 72.5in
- Height - Exhaust Stack
- 141.1in
- Width - Outside Rear Tires
- 134.3in
- Height - Top of Cylinders
- 122.6in
Weights Tier 4 Final/Stage IV/Japan 2014 (Tier 4 Final)*
- Gross Vehicle Weight - Base** - Rear Axle
- 52461lb
- Gross Vehicle Weight - Typically Equipped - Total
- 74324lb
- Gross Vehicle Weight - Maximum Tested - Total
- 84877lb
- Gross Vehicle Weight - Base** - Front Axle
- 19837lb
- Gross Vehicle Weight - Typically Equipped - Front Axle
- 20494lb
- Gross Vehicle Weight - Maximum Tested - Front Axle
- 26125lb
- Gross Vehicle Weight - Maximum Tested - Rear Axle
- 58753lb
- Gross Vehicle Weight - Base** - Total
- 72298lb
- Gross Vehicle Weight - Typically Equipped - Rear Axle
- 53830lb
- 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.
Ripper
- Ripping Depth - Maximum
- 17.8in
- Shank Holder Spacing - Minimum
- 17.5in
- Shank Holder Spacing - Maximum
- 20in
- Ripper Shank Holders
- 7
- Penetration Force
- 30311lb
- Pry-Out Force
- 43700lb
- Machine Length Increase, Beam Raised
- 63.4in
Tandems
- Tandem Oscillation - Front Down
- 25°
- Tandem Oscillation - Front Up
- 15°
- Sidewall Thickness - Inner
- 0.9in
- Sidewall Thickness - Outer
- 0.9in
- Height
- 25.5in
- Width
- 9.3in
- Drive Chain Pitch
- 2.5in
- Wheel Axle Spacing
- 72.5in
Frame
- Drawbar - Height
- 8in
- Front Axle - Total Oscillation per Side
- 35°
- Front Axle - Wheel Lean
- 18° Left/17° Right
- Drawbar - Width
- 3in
- Circle - Blade Beam Thickness
- 2in
- Front Frame Structure - Height
- 18.1in
- Front Frame Structure - Thickness
- 0.6in
- Circle - Diameter
- 71.7in
- Front Axle - Height to Center
- 26.4in
- Front Frame Structure - Width
- 14in
Operating Specifications
- Reverse - 5th
- 17.4mile/h
- Reverse - 2nd
- 4.1mile/h
- Steering Range - Left/Right
- 47.5°
- Reverse - 6th
- 25.3mile/h
- Top Speed - Forward
- 32.1mile/h
- Forward - 1st
- 2.8mile/h
- Reverse - 4th
- 9.3mile/h
- Forward - 3rd
- 5.5mile/h
- Reverse - 1st
- 2.2mile/h
- Articulation Angle - Left/Right
- 20°
- Forward - 7th
- 22mile/h
- Top Speed - Reverse
- 25.3mile/h
- Forward - 4th
- 7.6mile/h
- Turning Radius - Outside Front Tires
- 30.5ft
- Forward - 5th
- 11.8mile/h
- Reverse - 3rd
- 6mile/h
- Forward - 6th
- 16mile/h
- Forward - 2nd
- 3.8mile/h
- Forward - 8th
- 32.1mile/h
- Note
- Calculated with no slip and 23.5R25 L-3 tires.
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.
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.
