At a glance data:
Base Power (1st Gear) - Net:
304hp
Engine Model:
Cat® C13
Bore:
5.1in
Stroke:
6.2in
Overview
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.
Category:
Motor Graders
Category:
Motor Graders
Brand:
Cat
Brand:
Cat
Engine
Base Power (1st Gear) - Net:
304hp
Engine Model:
Cat® C13
Bore:
5.1in
Stroke:
6.2in
Speed at Rated Power:
2,000 rpm
Standard - Ambient Capability:
122°F
VHP Range - Net:
227-266 kW (304-357 hp)
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%
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:
763in³
Number of Cylinders:
6
Weights
Operating Weight - Typically Equipped:
74324lb
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:
27069.27ft·lbf
Brakes - Service:
Oil-actuated, oil disc
Brakes - Secondary:
Oil-actuated, oil-disc
Moldboard
Blade Width:
18ft
Hydraulic System
Circuit Type:
Electro-hydraulic load sensing, closed center
Pump Type:
Variable piston
Maximum System Pressure:
3590psi
Standby Pressure:
856psi
Pump Output*:
74gpm
Note:
*Pump output measured at 2,150 rpm.
Operating Specifications
Forward - 6th:
16.0mile/h
Forward - 2nd:
3.8mile/h
Forward - 8th:
32.1mile/h
Forward - 5th:
11.8mile/h
Reverse - 3rd:
6.0mile/h
Turning Radius - Outside Front Tires:
30.5ft
Forward - 4th:
7.6mile/h
Top Speed - Reverse:
25.3mile/h
Forward - 7th:
22.0mile/h
Articulation Angle - Left/Right:
20°
Reverse - 1st:
2.2mile/h
Forward - 3rd:
5.5mile/h
Reverse - 4th:
9.3mile/h
Forward - 1st:
2.8mile/h
Top Speed - Forward:
32.1mile/h
Reverse - 6th:
25.3mile/h
Steering Range - Left/Right:
47.5°
Reverse - 2nd:
4.1mile/h
Reverse - 5th:
17.4mile/h
Service Refill
Fuel Capacity:
131gal (US)
Cooling System:
18.5gal (US)
Hydraulic System - Tank:
18.5gal (US)
Hydraulic System - Total:
38.6gal (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)
Frame
Front Frame Structure - Width:
14.0in
Front Axle - Height to Center:
26.4in
Circle - Diameter:
71.7in
Front Frame Structure - Thickness:
0.6in
Front Frame Structure - Height:
18.1in
Circle - Blade Beam Thickness:
2in
Drawbar - Width:
3in
Front Axle - Wheel Lean:
18° Left/17° Right
Front Axle - Total Oscillation per Side:
35°
Drawbar - Height:
8in
Tandems
Sidewall Thickness - Outer:
0.9in
Sidewall Thickness - Inner:
0.9in
Tandem Oscillation - Front Up:
15°
Tandem Oscillation - Front Down:
25°
Height:
25.5in
Width:
9.3in
Drive Chain Pitch:
2.5in
Wheel Axle Spacing:
72.5in
Moldboard
Arc Radius:
16.3in
Throat Clearance:
5in
Down Force - Maximum GVW:
43861lb
Blade Pull* - Base GVW:
47216lb
Blade Pull* - Maximum GVW:
52878lb
End Bit - Width:
6in
Down Force - Base GVW:
34008lb
Cutting Edge Thickness:
1.4in
Thickness:
1in
Width:
18ft
Cutting Edge Width:
10in
End Bit - Thickness:
0.75in
Height:
31in
Blade Range
Maximum Blade Position Angle:
65°
Maximum Lift Above Ground:
15.7in
Maximum Depth of Cut:
18.5in
Maximum Shoulder Reach Outside of Tires - Right:
103in
Circle Centershift - Right:
22in
Maximum Shoulder Reach Outside of Tires - Left:
103in
Moldboard Sideshift - Right:
31.1in
Blade Tip Range - Backward:
5°
Moldboard Sideshift - Left:
29.1in
Circle Centershift - Left:
27.2in
Blade Tip Range - Forward:
40°
Ripper
Shank Holder Spacing - Minimum:
17.5in
Ripping Depth - Maximum:
17.8in
Ripper Shank Holders:
7
Penetration Force:
30311lb
Pry-Out Force:
43700lb
Machine Length Increase, Beam Raised:
63.4in
Weights Tier 4 Final/Stage IV/Japan 2014 (Tier 4 Final)*
Gross Vehicle Weight - Maximum Tested - Front Axle:
26125lb
Dimensions (Approximate)
Height - Top of Cylinders:
122.6in
Width - Outside Rear Tires:
134.3in
Height - Exhaust Stack:
141.1in
Length - Between Tandem Axles:
72.5in
Length - Front Axle to Mid Tandem:
290in
Width - Tire Center Lines:
106.4in
Length - Front Axle to Moldboard:
120.7in
Length - Counterweight to Ripper:
474.4in
Height - Front Axle Center:
29.9in
Width - Outside Front Tires:
134.3in
Length - Front Tire to Rear of Machine - Including Tow Hitch:
417in
Height - Top of Cab:
147.5in
Ground Clearance - Rear Axle:
16.7in
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
Optional Tire Arrangements
Wheel Group - 19.5×25 MP (2):
Tires: 23.5R25 Bridgestone VKT 1 Star
Engine
Optimized VHP Range - Net:
227-266 kW (304-357 hp)
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 2nd:
309hp
Gear - Forward 4th:
325hp
Optional Tire Arrangements
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
Ripper
Shank Holder Spacing - Maximum:
20in
Weights Tier 4 Final/Stage IV/Japan 2014 (Tier 4 Final)*
Note (2):
**Base operating weight calculated on standard machine configuration with 23.5R25 tires, full fuel tank operator and rops cab.
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).
Optional Tire Arrangements
Wheel Group - 19.5×25 MP (4):
Tires: 23.5R25 Michelin XHA 2 Star
Weights Tier 4 Final/Stage IV/Japan 2014 (Tier 4 Final)*
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.
Optional Tire Arrangements
Wheel Group - 19.5×25 MP (5):
Tires: 23.5R25 Michelin XLDD 2 Star L5
Operating Specifications
Note:
Calculated with no slip and 23.5R25 L-3 tires.
Moldboard
Note:
*Blade pull calculated at 0.9 traction coefficient, which is equal to ideal no-slip conditions, and Gross Machine Weight.
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)
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