Caterpillar 12M3 Motor Grader
Dimensions
Dimensions
Ground Clearance - Rear Axle
13.3in
Height - Exhaust Stack
128in
Height - Front Axle Center
23.5in
Height - Top Of Cab
130ft in
Height - Top Of Cylinders
120in
Length - Between Tandem Axles
60in
Length - Counterweight To Ripper
399in
Length - Front Axle To Mid Tandem
241in
Length - Front Axle To Moldboard
100in
Length - Front Tire To Rear Of Machine
351in
Width - Outside Front Tires
98.9in
Width - Outside Rear Tires
98.9in
Width - Tire Center Lines
84.3in
Specifications
Ripper
Pry-Out Force
27794lb
Ripping Depth - Maximum
16.8in
Ripper Shank Holders
5
Penetration Force
20812lb
Machine Length Increase, Beam Raised
40.6in
Ripper Shank Holder Spacing
21in
Engine
Number Of Cylinders
6
Frame
Front Frame Structure - Height
12.6ft in
Front Frame Structure - Width
12ft in
Engine
Torque Rise
38%
Displacement
567.5cu in
Bore
4.5in
Stroke
5.9in
Emissions
U.S. EPA Tier 4 Final/EU Stage IV
Engine Model
Cat C9.3 ACERT
Derating Altitude
10000ft in
Base Power (1st Gear) - Net
179hp
Standard Capability
109degrees
Speed At Rated Power
2,000 rpm
High - Ambient Capability
122degrees
Base Power (1st Gear) - Net - Metric
181hp
High Ambient - Fan Speed - Maximum
1,550 rpm
Vhp Plus - Gear - Net Power - Forward 8th
231hp
Vhp Plus - Gear - Net Power - Reverse 1st
179hp
Vhp Plus - Gear - Net Power - Reverse 2nd
189hp
Vhp Plus - Gear - Net Power - Reverse 3rd-6th
200hp
High Ambient - Fan Speed - Standard
1,400 rpm
Maximum Torque - Vhp Plus
840lb ft
High Ambient - Fan Speed - Minimum
500 rpm
Vhp Plus Range - Net
133-172 kW (179-231 hp)
Vhp Plus Range - Net - Metric
133-172 kW (181-234 hp)
Vhp Plus - Gear - Net Power - Forward 1st
179hp
Vhp Plus - Gear - Net Power - Forward 2nd
189hp
Vhp Plus - Gear - Net Power - Forward 3rd
200hp
Vhp Plus - Gear - Net Power - Forward 4th
210hp
Vhp Plus - Gear - Net Power - Forward 5th
215hp
Vhp Plus - Gear - Net Power - Forward 6th
220hp
Vhp Plus - Gear - Net Power - Forward 7th
225hp
Frame
Circle - Diameter
60.2in
Drawbar - Height
6in
Front Axle - Height To Center
23.5in
Circle - Blade Beam Thickness
1.6in
Front Axle - Total Oscillation Per Side
32 degrees
Drawbar - Thickness
0.5in
Drawbar - Width
3in
Front-Top/Bottom Plate - Width
12in
Front-Top/Bottom Plate - Thickness
0.9in
Front Axle - Wheel Lean - Left/Right
18 degrees
Circle - Height
5.4in
Power Train
Brakes - Parking
Multiple Oil Disc
Brakes - Service
Multiple Oil Disc
Transmission
APECS, Direct Drive, Powershift
Forward/Reverse Gears
8 Forward/6 Reverse
Brakes - Secondary
Dual Circuit
Brakes - Service - Surface Area
3565in2
Weights
Operating Weight - Typically Equipped
42647lb
Gross Vehicle Weight - Base - Total
37420lb
Gross Vehicle Weight - Maximum - Total
55144lb
Operating Weight - Typically Equipped - Total
42647lb
Gross Vehicle Weight - Base - Rear Axle
28077lb
Operating Weight - Typically Equipped - Front Axle
12055lb
Operating Weight - Typically Equipped - Rear Axle
30592lb
Gross Vehicle Weight - Base - Front Axle
9343lb
Gross Vehicle Weight - Maximum - Front Axle
17075lb
Gross Vehicle Weight - Maximum - Rear Axle
38069lb
Hydraulic System
Standby Pressure
885 psi
Maximum System Pressure
3500 psi
Pump Type
Variable Piston
Circuit Type
Parallel
Pump Output
55.7 gal/min
Reservoir Tank Capacity
16.9gal
Moldboard
Blade Width
12ft in
Arc Radius
16.3in
Throat Clearance
6.5in
Cutting Edge Width
6in
Cutting Edge Thickness
0.6in
End Bit - Width
6in
End Bit - Thickness
0.6in
Moldboard - Height
24in
Moldboard - Thickness
0.9in
Moldboard - Blade Width
12ft in
Blade Pull - Maximum Gvw
34262lb
Blade Pull - Base Gvw
25269lb
Blade Down Pressure - Base Gvw
16038lb
Blade Down Pressure - Maximum Gvw
29309lb
Operating Specifications
Top Speed - Forward
29mph
Top Speed - Reverse
23mph
Turning Radius - Outside Front Tires
25.6ft in
Steering Range - Left/Right
50 degrees
Articulation Angle - Left/Right
20 degrees
Forward - 8th
29mph
Forward - 7th
19.9mph
Forward - 6th
14.5mph
Forward - 5th
10.6mph
Forward - 4th
6.9mph
Forward - 3rd
5mph
Forward - 2nd
3.4mph
Forward - 1st
2.5mph
Reverse - 6th
23mph
Reverse - 5th
15.7mph
Reverse - 4th
8.4mph
Reverse - 3rd
5.4mph
Reverse - 2nd
3.7mph
Reverse - 1st
2mph
Standards
Brakes
ISO 3450
Rops/Fops
ISO 3471/ISO 3499
Sound
ISO 6394; ISO 6395
Steering
ISO 5010
Service Refill
Cooling System
15gal
Hydraulic System - Total
26.4gal
Engine Oil
7.9gal
Hydraulic System - Tank
16.9gal
Tandem Housing - Each
20gal
Circle Drive Housing
1.8gal
Front Wheel Spindle Bearing Housing
0.2gal
Fuel Capacity
104gal
Transmission - Differential - Final Drives
18.5gal
Diesel Exhaust Fluid
5.8gal
Blade Range
Circle Centershift - Right
28.7in
Circle Centershift - Left
27.4in
Moldboard Sideshift - Right
26in
Moldboard Sideshift - Left
20.1in
Blade Tip Range - Forward
40 degrees
Blade Tip Range - Backward
5 degrees
Maximum Shoulder Reach Outside Of Tires - Right
77.9in
Maximum Shoulder Reach Outside Of Tires - Left
70.5in
Maximum Lift Above Ground
18.9in
Maximum Depth Of Cut
28.1in
Maximum Blade Position Angle
90 degrees
Scarifier
Front, V-Type - Working Width
47.4in
Rear - Scarifier Shank Holders
9
Mid, V-Type - Scarifier Shank Holders
11
Front, V-Type, 5 Or 11 Tooth - Working Width
40.6in
Front, V-Type, 5 Or 11 Tooth - Scarifying Depth, Maximum
18.4in
Front, V-Type, 5 Or 11 Tooth - Scarifier Shank Holders
5/11
Front, V-Type, 5 Or 11 Tooth - Scarifier Shank Holder Spacing
4.6in
Mid, V-Type - Working Width
46.6in
Mid, V-Type - Scarifying Depth, Maximum
11.5in
Mid, V-Type - Scarifier Shank Holder Spacing
4.6in
Rear - Working Width
84in
Rear - Scarifying Depth, Maximum
16.8in
Rear - Scarifier Shank Holder Spacing
10.5in
Tandems
Height
19.9in
Width
7.9in
Sidewall Thickness - Inner
0.7in
Sidewall Thickness - Outer
0.8in
Drive Chain Pitch
2in
Wheel Axle Spacing
60in
Tandem Oscillation - Front Up
15 degrees
Tandem Oscillation - Front Down
25 degrees
