Caterpillar 18M3 Motor Grader
Specifications
Ripper
Pry-Out Force
43700lb
Ripping Depth - Maximum
17.8in
Ripper Shank Holders
7
Penetration Force
30311lb
Machine Length Increase, Beam Raised
63.4in
Shank Holder Spacing - Minimum
17.5in
Shank Holder Spacing - Maximum
20in
Engine
Number Of Cylinders
6
Frame
Front Frame Structure - Height
1.6ft in
Front Frame Structure - Width
1.2ft in
Front Frame Structure - Thickness
0.1ft in
Engine
Displacement
763cu in
Bore
5.1in
Stroke
6.2in
Engine Model
Cat C13 ACERT VHP
Base Power (1st Gear) - Net
304hp
Speed At Rated Power
2,000 rpm
Base Power (1st Gear) - Net - Metric
309hp
Frame
Circle - Diameter
71.7in
Drawbar - Height
8in
Front Axle - Height To Center
26.4in
Circle - Blade Beam Thickness
2in
Front Axle - Total Oscillation Per Side
35 degrees
Drawbar - Width
3in
Engine
Standard - Fan Speed - Maximum
1,450 rpm
Standard - Fan Speed - Minimum
550 rpm
Standard - Ambient Capability
122degrees
Vhp Range - Net - Metric
227-266 kW (309-362 hp)
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%
Emissions (1)
U.S. EPA Tier 4 Final/EU Stage IV/Japan 2014 (Tier 4 Final)
Emissions (3)
Tier 2/Stage II/Japan 2001 (Tier 2) Equivalent Emission Standards
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
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 in
Derating Altitude - Tier 3/Stage Iiia/Japan 2006 (Tier 3) Equivalent
12176ft in
Derating Altitude - Tier 2/Stage Ii/Japan 2001 (Tier 2) Equivalent
12973ft in
Optimized Vhp Range - Net
227-266 kW (304-357 hp)
Frame
Front Axle - Wheel Lean
18 degrees Left/17 degrees Right
Power Train
Brakes - Parking
Spring applied, hydraulically released
Brakes - Service
Oil-actuated, oil disc
Transmission
Direct drive, power shift, countershaft
Forward/Reverse Gears
8 Forward/6 Reverse
Brakes - Secondary
Oil-actuated, oil-disc
Brakes - Dynamic Brake Torque Per Wheel
27069.3lb ft
Weights
Operating Weight - Typically Equipped
74324lb
Hydraulic System
Standby Pressure
856 psi
Maximum System Pressure
3590 psi
Pump Type
Variable piston
Circuit Type
Electro-hydraulic load sensing, closed center
Note
*Pump output measured at 2,150 rpm.
Moldboard
Blade Width
18ft in
Arc Radius
16.3in
Throat Clearance
5in
Thickness
1in
Cutting Edge Width
10in
Cutting Edge Thickness
1.4in
End Bit - Width
6in
End Bit - Thickness
0.8in
Note
*Blade pull calculated at 0.9 traction coefficient, which is equal to ideal no-slip conditions, and Gross Machine Weight.
Width
18ft in
Height
31in
Hydraulic System
Pump Output*
74 gal/min
Moldboard
Blade Pull* - Maximum Gvw
52878lb
Down Force - Maximum Gvw
43861lb
Blade Pull* - Base Gvw
47216lb
Down Force - Base Gvw
34008lb
Operating Specifications
Note
Calculated with no slip and 23.5R25 L-3 tires.
Top Speed - Forward
32.1mph
Top Speed - Reverse
25.3mph
Turning Radius - Outside Front Tires
30.5ft in
Steering Range - Left/Right
47.5 degrees
Articulation Angle - Left/Right
20 degrees
Forward - 8th
32.1mph
Forward - 7th
22mph
Forward - 6th
16mph
Forward - 5th
11.8mph
Forward - 4th
7.6mph
Forward - 3rd
5.5mph
Forward - 2nd
3.8mph
Forward - 1st
2.8mph
Reverse - 6th
25.3mph
Reverse - 5th
17.4mph
Reverse - 4th
9.3mph
Reverse - 3rd
6mph
Reverse - 2nd
4.1mph
Reverse - 1st
2.2mph
Dimensions (Approximate)
Height - Top Of Cab
12.3ft in
Length - Front Axle To Mid Tandem
290in
Length - Between Tandem Axles
72.5in
Height - Front Axle Center
29.9in
Length - Front Axle To Moldboard
120.7in
Length - Counterweight To Ripper
474.4in
Length - Front Tire To Rear Of Machine - Including Tow Hitch
417in
Height - Exhaust Stack
141.1in
Width - Tire Center Lines
106.4in
Width - Outside Rear Tires
134.3in
Width - Outside Front Tires
134.3in
Height - Top Of Cylinders
122.6in
Ground Clearance - Rear Axle
16.7in
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
Service Refill
Cooling System
18.5gal
Hydraulic System - Total
38.6gal
Engine Oil
9.5gal
Hydraulic System - Tank
18.5gal
Def Tank
4.2gal
Tandem Housing - Each
34gal
Circle Drive Housing
2.6gal
Front Wheel Spindle Bearing Housing
0.3gal
Fuel Capacity
131gal
Transmission - Differential - Final Drives
26gal
Blade Range
Circle Centershift - Right
22in
Circle Centershift - Left
27.2in
Moldboard Sideshift - Right
31.1in
Moldboard Sideshift - Left
29.1in
Blade Tip Range - Forward
40 degrees
Blade Tip Range - Backward
5 degrees
Maximum Shoulder Reach Outside Of Tires - Right
103in
Maximum Shoulder Reach Outside Of Tires - Left
103in
Maximum Lift Above Ground
15.7in
Maximum Depth Of Cut
18.5in
Maximum Blade Position Angle
65 degrees
Tandems
Height
25.5in
Width
9.3in
Sidewall Thickness - Inner
0.9in
Sidewall Thickness - Outer
0.9in
Drive Chain Pitch
2.5in
Wheel Axle Spacing
72.5in
Tandem Oscillation - Front Up
15 degrees
Tandem Oscillation - Front Down
25 degrees
Optional Tire Arrangements
Wheel Group - 19.525 Mp (1)
Tires: 23.5R25 Bridgestone VKT 2 Star
Wheel Group - 19.525 Mp (2)
Tires: 23.5R25 Bridgestone VKT 1 Star
Wheel Group - 19.525 Mp (3)
Tires: 23.5R25 Bridgestone VJT 1 Star
Wheel Group - 19.525 Mp (4)
Tires: 23.5R25 Michelin XHA 2 Star
Wheel Group - 19.525 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 - 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
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
Weights Tier 4 Final/Stage Iv/Japan 2014 (Tier 4 Final)*
Gross Vehicle Weight - Maximum Tested - Total
84877lb
Gross Vehicle Weight - Typically Equipped - Front Axle
20494lb
Gross Vehicle Weight - Maximum Tested - Front Axle
26125lb
Gross Vehicle Weight - Base** - Rear Axle
52461lb
Gross Vehicle Weight - Typically Equipped - Total
74324lb
Gross Vehicle Weight - Base** - Front Axle
19837lb
Gross Vehicle Weight - Maximum Tested - Rear Axle
58753lb
Gross Vehicle Weight - Typically Equipped - Rear Axle
53830lb
Gross Vehicle Weight - Base** - Total
72298lb
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.
