18M3 Motor Grader

18M3 Motor Grader

360° Exterior View

The 18M3 builds on the success of the 16M and offers additional power, a wider moldboard and the possibility to use a more aggressive blade angle, making it ...
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Engine

Base Power (1st Gear) - Net
304HP
Engine Model
Cat® C13 ACERT™ VHP
Bore
5.1in
Stroke
6.2in
Speed at Rated Power
2,000 rpm
Base Power (1st Gear) - Net - Metric
309HP
Emissions (1)
U.S. EPA Tier 4 Final/EU Stage IV/Japan 2014 (Tier 4 Final)
Emissions (2)
Tier 3/Stage IIIA/Japan 2006 (Tier 3) Equivalent Emission Standards
Emissions (3)
Tier 2/Stage II/Japan 2001 (Tier 2) Equivalent Emission Standards
VHP Range - Net
227-266 kW (304-357 hp)
Torque Rise - Tier 4/Stage IV/Japan 2014 (Tier 4 Final)
40%
Torque Rise - Tier 3/Stage IIIA/Japan 2006 (Tier 3) Equivalent
38%
VHP Range - Net - Metric
227-266 kW (309-362 hp)
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
Maximum Torque - ISO 9249 - Tier 3/Stage IIIA/Japan 2006 (Tier 3) Equivalent
1270lb/ft
Maximum Torque - ISO 9249 - Tier 2/Stage II/Japan 2001 (Tier 2) Equivalent
1270lb/ft
Derating Altitude - Tier 4/Stage IV/Japan 2014 (Tier 4 Final)
12500ft
Derating Altitude - Tier 3/Stage IIIA/Japan 2006 (Tier 3) Equivalent
12176ft
Derating Altitude - Tier 2/Stage II/Japan 2001 (Tier 2) Equivalent
12973ft
Standard - Fan Speed - Maximum
1,450 rpm
Standard - Fan Speed - Minimum
550 rpm
Standard - Ambient Capability
122°F
Optimized VHP Range - Net
227-266 kW (304-357 hp)
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
Thickness
1in
Cutting Edge Width
10in
Cutting Edge Thickness
1.4in
End Bit - Width
6in
End Bit - Thickness
0.75in
Blade Pull* - Base GVW
47216lb
Blade Pull* - Maximum GVW
52878lb
Down Force - Base GVW
34008lb
Down Force - Maximum GVW
43861lb
Width
18ft
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 - Service
Oil-actuated, oil disc
Brakes - Dynamic Brake Torque per Wheel
27069.27lb/ft
Brakes - Parking
Spring applied, hydraulically released
Brakes - Secondary
Oil-actuated, oil-disc

Hydraulic System

Circuit Type
Electro-hydraulic load sensing, closed center
Pump Type
Variable piston
Maximum System Pressure
3590psi
Standby Pressure
856psi
Pump Output*
74gal/min
Note
*Pump output measured at 2,150 rpm.

Blade Range

Maximum Blade Position Angle
65°
Maximum Lift Above Ground
15.7in
Maximum Depth of Cut
18.5in
Circle Centershift - Right
22in
Circle Centershift - Left
27.2in
Moldboard Sideshift - Right
31.1in
Moldboard Sideshift - Left
29.1in
Blade Tip Range - Forward
40°
Blade Tip Range - Backward
Maximum Shoulder Reach Outside of Tires - Right
103in
Maximum Shoulder Reach Outside of Tires - Left
103in

Weights Tier 4 Final/Stage IV/Japan 2014 (Tier 4 Final)*

Gross Vehicle Weight - Typically Equipped - Total
74324lb
Gross Vehicle Weight - Typically Equipped - Front Axle
20494lb
Gross Vehicle Weight - Typically Equipped - Rear Axle
53830lb
Gross Vehicle Weight - Base** - Total
72298lb
Gross Vehicle Weight - Base** - Front Axle
19837lb
Gross Vehicle Weight - Base** - Rear Axle
52461lb
Gross Vehicle Weight - Maximum Tested - Total
84877lb
Gross Vehicle Weight - Maximum Tested - Front Axle
26125lb
Gross Vehicle Weight - Maximum Tested - Rear Axle
58753lb
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.
Note (2)
**Base operating weight calculated on standard machine configuration with 23.5R25 tires, full fuel tank operator and rops cab.

Dimensions (Approximate)

Height - Top of Cab
147.5in
Height - Front Axle Center
29.9in
Length - Between Tandem Axles
72.5in
Length - Front Axle to Moldboard
120.7in
Length - Front Axle to Mid Tandem
290in
Length - Front Tire to Rear of Machine - Including Tow Hitch
417in
Length - Counterweight to Ripper
474.4in
Ground Clearance - Rear Axle
16.7in
Height - Top of Cylinders
122.6in
Height - Exhaust Stack
141.1in
Width - Tire Center Lines
106.4in
Width - Outside Rear Tires
134.3in
Width - Outside Front Tires
134.3in

Operating Specifications

Top Speed - Forward
32.1mile/h
Top Speed - Reverse
25.3mile/h
Turning Radius - Outside Front Tires
30.5ft
Steering Range - Left/Right
47.5°
Articulation Angle - Left/Right
20°
Forward - 1st
2.8mile/h
Forward - 2nd
3.8mile/h
Forward - 3rd
5.5mile/h
Forward - 4th
7.6mile/h
Forward - 5th
11.8mile/h
Forward - 6th
16mile/h
Forward - 7th
22mile/h
Forward - 8th
32.1mile/h
Reverse - 1st
2.2mile/h
Reverse - 2nd
4.1mile/h
Reverse - 3rd
6mile/h
Reverse - 4th
9.3mile/h
Reverse - 5th
17.4mile/h
Reverse - 6th
25.3mile/h
Note
Calculated with no slip and 23.5R25 L-3 tires.

Frame

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

Standards

Brakes
ISO 3450: 2011
ROPS/FOPS
ISO 3471: 2008/ISO 3449: 2005
Sound
ISO 6394: 2008/ISO 6395: 2008/ISO 6396: 2008
Steering
ISO 5010: 2007

Ripper

Shank Holder Spacing - Minimum
17.5in
Ripping Depth - Maximum
17.8in
Shank Holder Spacing - Maximum
20in
Ripper Shank Holders
7
Penetration Force
30311lb
Pry-Out Force
43700lb
Machine Length Increase, Beam Raised
63.4in

Tandems

Sidewall Thickness - Inner
0.9in
Sidewall Thickness - Outer
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

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 1st
304HP
Gear - Forward 2nd
304HP
Gear - Forward 3rd
311HP
Gear - Forward 4th
321HP
Gear - Forward 5th
327HP
Gear - Forward 6th
337HP
Gear - Forward 7th
342HP
Gear - Forward 8th
357HP
Gear - Reverse 1st
304HP
Gear - Reverse 2nd
304HP
Gear - Reverse 3rd-6th
311HP

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
309HP
Gear - Forward 2nd
309HP
Gear - Forward 3rd
315HP
Gear - Forward 4th
325HP
Gear - Forward 5th
332HP
Gear - Forward 6th
341HP
Gear - Forward 7th
347HP
Gear - Forward 8th
362HP
Gear - Reverse 1st
309HP
Gear - Reverse 2nd
309HP
Gear - Reverse 3rd-6th
315HP

Optional Tire Arrangements

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 (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

ENHANCED PERFORMANCE AND OPERATOR COMFORT

You measure profitability by the ore you produce – and the more cost effectively you do that, the more successful you are. While drills, draglines, loaders and haul trucks are responsible for producing ore, motor graders have a direct impact on how productively these machines can operate – in particular in their role in haul road maintenance.

  • 18 Foot Moldboard – The 18M3 includes a standard 18 foot moldboard and straight 10 inch by 1 3/8 inch cutting edge, which allows the operator to increase coverage by 12.5% compared to a 16 foot moldboard. Also the operator can us a more aggressive blade angle and still be able to deposit the windrow away from the tires to protect tire life. The use of a more aggressive blade angle results in reduced load on the machine and the ability to better maintain ground speed for enhanced performance.
  • 18M3 Power Levels and Optimized Variable Horse Power (VHP) – Compared to the 16M3, the 18M3 has on average 5% more power. The additional power combined with the 18 foot moldboard and proper weight balance provides the best combination of performance and coverage. The Optimized Variable Horse Power (VHP) is designed to provide the ideal amount of power in all gears to efficiently perform diverse motor grader applications while protecting structure and drive train components.
  • Machine Balance – With optimized combination of weight and balance the 18M3 delivers enhanced traction and the ability to keep ground speed, especially when carrying a large load on the board.
  • Simple, Operator Friendly Emissions Technology – The 18M3 is available with three variations of the C13 engine with ACERT™ Technology. One meets U.S. EPA Tier 4 Final / EU Stage IV / Japan 2014 (Tier 4 Final) emissions standards and is required for sale in higher regulated countries. The other options will be capable of meeting Tier 2 / Stage II / Japan 2001 (Tier 2) equivalent emission standards or Tier 3 / Stage IIIA / Japan 2006 (Tier 3) equivalent emission standards, depending on the emission standards of the specific country. Emissions reduction technology on the 18M3 Motor Grader is designed to be transparent, with no action required from the operator.
  • Rear Ripper / Scarifier – Made to penetrate tough material fast and rip thoroughly for easier movement with the moldboard. The 18M3 includes a standard ripper with three shanks with the ability to add four more for additional versatility.
  • Comfort and Control – The multi-color / touch screen Information Display is the operator's gateway to monitoring machine performance, a convenient way of modifying machine parameters to tailor performance to the current task and access the service information for initial troubleshooting.
  • Monitor, Manage, and Enhance Job Site Operations – Cat Product Link™ Elite is deeply integrated into your machine, helping you 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 you effectively manage your fleet and lower operating cost.

OPERATING COST REDUCTION

High mechanical availability is one of your top concerns. The 18M3 helps reduce downtime and operating cost 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.

  • Use Less Fuel – Engine Economy (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 with respect to fuel consumption. ECO Mode could provide significant fuel consumption savings especially in operations that are typically run at light to moderate loads, high idle and gear usage between 3R to 5F.
  • Engineered for Maximum Production and Service Life – The 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.
  • Standard Front Axle Guard – A front guard helps protect the front axle from rocks or other debris that could damage the axle or its components.
  • Standard Transmission Guard – The transmission guard provides a steel protection from ground debris.
  • Ease of Maintenance – The 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. Also, extended maintenance intervals reduce the number of touches and downtime.
  • Protecting Your Asset – 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.

SAFETY

You consider the safety of your workers a top priority, and we're doing our best to help you meet your safety goals. Caterpillar considers the safety of everyone in, on or around Cat equipment when developing new products or enhancing safety features for existing products. The 18M3 has 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
  • Access Platform – optional
  • Service Access Platform – optional

DEALER SUPPORT EVERY STEP OF THE WAY

Your local Cat dealer is committed to helping you succeed, by ensuring you have the right machine for the job, making parts available, and providing you with versatile work tools.

Standard Equipment:

Optional Equipment:

    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)