18
18 Motor Grader
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.
18
Cat® 18 motor grader powers through mining with high efficiency, advanced emissions control, and a wider moldboard. Ideal for haul road maintenance and mining operations, this heavy equipment cuts costs and ensures uptime with Cat durability.
- Specifications
- Standard / Optional Features
- Long Name -18 Motor Grader
- Name -18
- Brand -Cat
- Status -Current
- 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)
- Operating Weight - Typically Equipped - 74324 lb / 33713 kg
- 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
- 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.
- 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 gpm / 280 L/min
- Note - *Pump output measured at 2,150 rpm.
- 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.
- 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
- 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
- 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
- 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°
- 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
- 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.
- 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
- 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
- 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
- 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
- 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 - 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).
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)
