The 12M motor grader represents a revolution in operational efficiency, visibility, service ease and overall productivity, setting the new standard and building on the legacy of high quality you can trust.
Engine
Base Power (1st gear) – Net |
118 kW |
Engine Model |
C6.6 ACERT VHP |
Bore |
105 mm |
Stroke |
125 mm |
Speed @ Rated Power |
2000 RPM |
Base Power (all gears) – Net |
118 kW |
Maximum Torque |
859 N·m |
Torque Rise (VHP Plus) |
40% |
VHP Plus Range – Net |
118-144 kW (158-193 hp) |
VHP Range – Net |
118 -129 kW (158-173 hp) |
Displacement |
6.6 L |
Number of Cylinders |
6 |
Derating Altitude |
3505 m |
Standard – Fan Speed – Maximum |
1150 RPM |
Standard – Fan Speed – Minimum |
550 RPM |
Standard – Ambient Capability |
43 ° C |
High Ambient – Fan Speed – Maximum |
1650 RPM |
High Ambient – Fan Speed – Minimum |
550 RPM |
High Ambient Capability |
50 ° C |
Weights
Gross Vehicle Weight – Maximum – Front Axle |
6933 kg |
Gross Vehicle Weight – Maximum – Rear Axle |
13338 kg |
Gross Vehicle Weight – Base – Front Axle |
4008 kg |
Gross Vehicle Weight – Base – Rear Axle |
10514 kg |
Gross Vehicle Weight – Maximum – Total |
20271 kg |
Gross Vehicle Weight – Base – Total |
14522 kg |
Moldboard
Blade Width |
3.7 m |
Moldboard – Height |
609.6 mm |
Moldboard – Thickness |
22 mm |
Arc Radius |
413 mm |
Throat Clearance |
124 mm |
Cutting Edge – Width |
152.4 mm |
Cutting Edge – Thickness |
16 mm |
End Bit – Width |
152.4 mm |
End Bit – Thickness |
16 mm |
Blade Pull – Base GVW |
9463 kg |
Blade Pull – Maximum GVW |
12004 kg |
Blade Down Pressure – Base GVW |
7098 kg |
Blade Down Pressure – Maximum GVW |
12277 kg |
Dimensions
Height – Top of Cab |
3278 mm |
Length – Counterweight to Ripper |
9889 mm |
Width – Outside Front Tires |
2481 mm |
Length – Front Axle to Mid Tandem |
5915 mm |
Length – Front Tire to Rear of Machine |
8488 mm |
Length – Front Axle to Moldboard |
2511 mm |
Length – Between Tandem Axles |
1511 mm |
Width – Outside Rear Tires |
2481 mm |
Width – Tire Center Lines |
2136 mm |
Height – Front Axle Center |
572 mm |
Height to Exhaust Stack |
2855 mm |
Height to Top of Cylinders |
2890 mm |
Ground Clearance at Rear Axle |
347 mm |
Operating Specifications
Top Speed – Forward |
44.5 km/h |
Top Speed – Reverse |
37.8 km/h |
Turning Radius, Outside Front Tires |
7.46 m |
Steering Range – Left/Right |
47.5° |
Articulation Angle – Left/Right |
20° |
Forward – 1st |
3.9 km/h |
Forward – 2nd |
5.3 km/h |
Forward – 3rd |
7.6 km/h |
Forward – 4th |
10.5 km/h |
Forward – 5th |
16.4 km/h |
Forward – 6th |
22.2 km/h |
Forward – 7th |
30.6 km/h |
Forward – 8th |
44.5 km/h |
Reverse – 1st |
3.3 km/h |
Reverse – 2nd |
6.2 km/h |
Reverse – 3rd |
8.9 km/h |
Reverse – 4th |
13.9 km/h |
Reverse – 5th |
26 km/h |
Reverse – 6th |
37.8 km/h |
Service Refill
Fuel Capacity |
340 L |
Cooling System |
40 L |
Hydraulic System – Tank |
60 L |
Engine Oil |
15.5 L |
Transmission/Differential/Final Drives |
50 L |
Tandem Housing (each) |
61 L |
Front Wheel Spindle Bearing Housing |
0.5 L |
Circle Drive Housing |
7 L |
Power Train
Forward/Reverse Gears |
8 Fwd / 6 Rev |
Transmission |
Direct drive, power shift, countershaft |
Brakes – Service |
Multiple oil-disc |
Brakes – Service, Surface Area |
23000 cm2 |
Brakes – Parking |
Multiple oil disc |
Brakes – Secondary |
Dual circuit control system |
Hydraulic System
Circuit Type |
Electro-hydraulic closed center, load sensing, |
Pump Type |
Variable piston |
Pump Output |
193 L/min |
Maximum System Pressure |
24100 kPa |
Standby Pressure |
3100 kPa |
Frame
Drawbar – Width |
76.2 mm |
Circle – Diameter |
1530 mm |
Circle – Blade Beam Thickness |
35 mm |
Drawbar – Height |
152 mm |
Front Frame Structure – Height |
254 mm |
Front Frame Structure – Thickness |
16 mm |
Front Frame Structure – Width |
254 mm |
Drawbar – Thickness |
9.5 mm |
Drawbar - yoke bar thickness |
19.1 mm |
Front Axle – Height to Center |
572 mm |
Front Axle – Wheel Lean, Left/Right |
18° |
Front Axle – Total Oscillation per Side |
32° |
Blade Range
Circle Centershift – Right |
656 mm |
Circle Centershift – Left |
656 mm |
Moldboard Sideshift – Right |
660 mm |
Moldboard Sideshift – Left |
510 mm |
Maximum Blade Position Angle |
90° |
Blade Tip Range – Forward |
40° |
Blade Tip Range – Backward |
5° |
Maximum Shoulder Reach Outside of Tires – Right |
1905 mm |
Maximum Shoulder Reach Outside of Tires – Left |
1742 mm |
Maximum Lift above Ground |
427 mm |
Maximum Depth of Cut |
720 mm |
Standards
Brakes |
ISO 3450:1996 |
ROPS/FOPS |
ISO 3471:1992 / ISO 3449:1992 |
Sound |
ISO 6394:1998 / ISO 6395:1988 |
Steering |
ISO 5010:1992 |
Scarifier
Front, V-Type, 5 or 11 Tooth – Scarifier Shank Holder Spacing |
116 mm |
Front, V-Type, 5 or 11 Tooth – Scarifier Shank Holders |
5 / 11 |
Front, V-Type, 5 or 11 Tooth – Scarifying Depth, Maximum |
467 mm |
Front, V-Type, 5 or 11 Tooth – Working Width |
1205 mm |
Mid, Straight – Scarifier Shank Holder Spacing |
111 mm |
Mid, Straight – Scarifier Shank Holders |
17 |
Mid, Straight – Scarifying Depth, Maximum |
317 mm |
Mid, Straight – Working Width |
1800 mm |
Mid, V-Type – Scarifier Shank Holder Spacing |
116 mm |
Mid, V-Type – Scarifier Shank Holders |
11 |
Mid, V-Type – Scarifying Depth, Maximum |
292 mm |
Mid, V-Type – Working Width |
1184 mm |
Rear – Scarifying Depth, Maximum |
266 mm |
Rear – Working Width |
2300 mm |
Rear – Scarifier Shank Holders |
9 |
Rear – Scarifier Shank Holder Spacing |
267 mm |
Tandems
Height |
502 mm |
Width |
172 mm |
Sidewall Thickness – Inner |
14 mm |
Sidewall Thickness – Outer |
16 mm |
Drive Chain Pitch |
44.5 mm |
Wheel Axle Spacing |
1510 mm |
Tandem Oscillation – Front Up |
15° |
Tandem Oscillation – Front Down |
25° |
Operator Station
A technologically advanced cab, featuring joystick controls, provides unmatched comfort and visibility.Integrated Electronic Solutions
Full systems integration with advanced electronics including Cat® Messenger, AccuGrade™ blade control system and Cat ET, create a “Smart Machine” that optimizes performance and availability.Steering and Implement Controls
Two joysticks offer precise control and unparalleled ease of operation. This advanced technology makes the 12M the most operator-friendly motor grader in the world.Work Tools and Attachments
The Work Tools and optional attachments for the 12M expand machine versatility, utilization and performance.Structures, Drawbar, Circle
The 12M frame provides a solid working platform, and the DCM delivers service ease and precise blade control for maximum productivity.Power Train
An electronically controlled power shift transmission assures smooth shifting and maximum power to the ground. A modular rear axle and hydraulic brakes simplify serviceability and reduce operating costs.Engine
The Cat® C6.6 engine combines power management with ACERT™ Technology to deliver maximum power and efficiency in every gear while reducing the environmental impact.Safety
Caterpillar® has been and continues to be proactive in developing machines that meet or exceed safety standards.Hydraulics
The electro-hydraulic load-sensing system provides the foundation for advanced machine controls, enabling superior controllability and precise and predictable hydraulic movements, with the reliability you expect from Caterpillar.Serviceability and Customer Support
Fast component replacement and minimum downtime are possible with Caterpillar’s exceptional parts availability and dealers’ advanced rebuild and repair capabilities.