12M3/12M3 AWD Motor Grader

12M3/12M3 AWD Motor Grader

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Reduce your carbon footprint with the latest in emissions reduction technology with the durable M Series 3 motor grader. The 12M3 motor grader unites comfortability and productivity to ...
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Engine

Base Power (1st Gear) - Net
179HP
Engine Model
Cat® C9.3 ACERT™
Bore
4.5in
Stroke
5.9in
Speed at Rated Power
2,000 rpm
VHP Plus Range - Net - Metric
133-172 kW (181-234 hp)
VHP Plus Range - Net
133-172 kW (179-231 hp)
VHP Plus - Gear - Net Power - Forward 7th
225HP
VHP Plus - Gear - Net Power - Forward 6th
220HP
VHP Plus - Gear - Net Power - Forward 5th
215HP
VHP Plus - Gear - Net Power - Forward 4th
210HP
VHP Plus - Gear - Net Power - Forward 3rd
200HP
VHP Plus - Gear - Net Power - Forward 2nd
189HP
Torque Rise
38%
VHP Plus - Gear - Net Power - Forward 1st
179HP
Standard Capability
109°F
Maximum Torque - VHP Plus
840lb/ft
High Ambient - Fan Speed - Standard
1,400 rpm
Emissions
U.S. EPA Tier 4 Final/EU Stage V
Base Power (1st Gear) - Net - Metric
181HP
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
Displacement
567.5in³
Number of Cylinders
6
Derating Altitude
10000ft
High Ambient - Fan Speed - Maximum
1,550 rpm
High Ambient - Fan Speed - Minimum
500 rpm
High - Ambient Capability
122°F

Weights

Operating Weight - Typically Equipped
42647lb
Gross Vehicle Weight - Maximum - Front Axle
17075lb
Gross Vehicle Weight - Maximum - Rear Axle
38069lb
Operating Weight - Typically Equipped - Front Axle
12055lb
Operating Weight - Typically Equipped - Rear Axle
30592lb
Gross Vehicle Weight - Base - Front Axle
9343lb
Gross Vehicle Weight - Base - Rear Axle
28077lb
Gross Vehicle Weight - Maximum - Total
55144lb
Gross Vehicle Weight - Base - Total
37420lb
Operating Weight - Typically Equipped - Total
42647lb

Moldboard

Blade Width
12ft
Moldboard - Height
24in
Moldboard - Thickness
0.87in
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
Blade Pull - Base GVW
25269lb
Blade Pull - Maximum GVW
34262lb
Blade Down Pressure - Base GVW
16038lb
Blade Down Pressure - Maximum GVW
29309lb
Moldboard - Blade Width
12ft

Operating Specifications

Top Speed - Forward
29mile/h
Top Speed - Reverse
23mile/h
Turning Radius - Outside Front Tires
25.59ft
Steering Range - Left/Right
50°
Articulation Angle - Left/Right
20°
Forward - 1st
2.5mile/h
Forward - 2nd
3.4mile/h
Forward - 3rd
5mile/h
Forward - 4th
6.9mile/h
Forward - 5th
10.6mile/h
Forward - 6th
14.5mile/h
Forward - 7th
19.9mile/h
Forward - 8th
29mile/h
Reverse - 1st
2mile/h
Reverse - 2nd
3.7mile/h
Reverse - 3rd
5.4mile/h
Reverse - 4th
8.4mile/h
Reverse - 5th
15.7mile/h
Reverse - 6th
23mile/h

Service Refill

Fuel Capacity
104gal (US)
Cooling System
15gal (US)
Hydraulic System - Total
26.4gal (US)
Hydraulic System - Tank
16.9gal (US)
Diesel Exhaust Fluid
5.8gal (US)
Transmission - Differential - Final Drives
18.5gal (US)
Engine Oil
7.9gal (US)
Tandem Housing - Each
20gal (US)
Front Wheel Spindle Bearing Housing
0.13gal (US)
Circle Drive Housing
1.8gal (US)

Power Train

Forward/Reverse Gears
8 Forward/6 Reverse
Transmission
APECS, Direct Drive, Powershift
Brakes - Service
Multiple Oil Disc
Brakes - Service - Surface Area
3565in²
Brakes - Parking
Multiple Oil Disc
Brakes - Secondary
Dual Circuit

Hydraulic System

Circuit Type
Parallel
Pump Type
Variable Piston
Pump Output
55.7gal/min
Maximum System Pressure
3500psi
Reservoir Tank Capacity
16.9gal (US)
Standby Pressure
885psi

Frame

Drawbar - Width
3in
Circle - Diameter
60.2in
Circle - Blade Beam Thickness
1.6in
Drawbar - Height
6in
Circle - Height
5.4in
Front Frame Structure - Height
12.6in
Front Frame Structure - Width
12in
Drawbar - Thickness
0.5in
Front-Top/Bottom Plate - Width
12in
Front-Top/Bottom Plate - Thickness
0.87in
Front Axle - Height to Center
23.5in
Front Axle - Wheel Lean - Left/Right
18°
Front Axle - Total Oscillation per Side
32°

Blade Range

Circle Centershift - Right
28.7in
Circle Centershift - Left
27.4in
Moldboard Sideshift - Right
26in
Moldboard Sideshift - Left
20.1in
Maximum Blade Position Angle
90°
Blade Tip Range - Forward
40°
Blade Tip Range - Backward
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

Standards

Brakes
ISO 3450
ROPS/FOPS
ISO 3471/ISO 3499
Sound
ISO 6394; ISO 6395
Steering
ISO 5010

Scarifier

Front, V-Type, 5 or 11 Tooth - Scarifier Shank Holder Spacing
4.6in
Front, V-Type, 5 or 11 Tooth - Scarifier Shank Holders
5/11
Front, V-Type, 5 or 11 Tooth - Scarifying Depth, Maximum
18.4in
Front, V-Type, 5 or 11 Tooth - Working Width
40.6in
Front, V-Type - Working Width
47.4in
Mid, V-Type - Scarifier Shank Holders
11
Mid, V-Type - Scarifier Shank Holder Spacing
4.6in
Mid, V-Type - Scarifying Depth, Maximum
11.5in
Mid, V-Type - Working Width
46.6in
Rear - Scarifying Depth, Maximum
16.8in
Rear - Working Width
84in
Rear - Scarifier Shank Holders
9
Rear - Scarifier Shank Holder Spacing
10.5in

Ripper

Ripping Depth - Maximum
16.8in
Ripper Shank Holder Spacing
21in
Ripper Shank Holders
5
Penetration Force
20812lb
Pry-Out Force
27794lb
Machine Length Increase, Beam Raised
40.6in

Tandems

Height
19.9in
Width
7.9in
Sidewall Thickness - Inner
0.63in
Sidewall Thickness - Outer
0.71in
Drive Chain Pitch
2in
Wheel Axle Spacing
60in
Tandem Oscillation - Front Up
15°
Tandem Oscillation - Front Down
25°

Dimensions

Height - Top of Cab
130in
Length - Counterweight to Ripper
399in
Width - Outside Front Tires
98.9in
Length - Front Axle to Mid Tandem
241in
Length - Front Tire to Rear of Machine
351in
Length - Front Axle to Moldboard
100in
Length - Between Tandem Axles
60in
Width - Outside Rear Tires
98.9in
Width - Tire Center Lines
84.3in
Height - Front Axle Center
23.5in
Height - Exhaust Stack
128in
Height - Top of Cylinders
120in
Ground Clearance - Rear Axle
13.3in

BETTER COMFORT AND CONTROL

  • Visibility is key to your safety, efficiency and quality of work. The 12M3 delivers with angled cab doors, tapered engine enclosure and a sloped rear window make it easy to see the moldboard and tires, as well as behind the machine. Optional rear camera further enhances lines of sight.
  • The most comfortable cab in the industry.
  • Joystick controls reduce hand and arm movement by 78%, which helps to lower operator fatigue.
  • Easy-reach rocker and control switches
  • Standard Cat Comfort Series suspension seat.
  • Control pods adjust electronically - easy to set ideal operating position.
  • Isolation mounts reduce sound and vibration for more relaxed environment.
  • High capacity Heating, Ventilation and Air Conditioning (HVAC) system dehumidifies and pressurizes the cab, circulates fresh air, seals out dust and keeps windows clear.
  • Optional deluxe radio with CD features MP3 and Bluetooth technology.
  • In-dash instrument cluster houses easily read, high-visibility gauges and warning lamps keep you aware of critical system information.
  • Two electro-hydraulic joysticks make operation easy and comfortable. Adjustable control pods ensure they are positioned for optimal comfort, visibility and operation.
  • Joystick Functions -
  1. Left joystick controls steering, articulation, return-to-center, wheel lean, gear selection, left moldboard lift cylinder and float.
  2. Right joystick controls drawbar, circle and moldboard functions as well as electronic throttle control and manual differential lock/unlock. Joystick lean angle mirrors the steer tires' turning angle.
  • Brake tensioning system holds the joystick in position until the operator moves it.
  • Steering control automatically reduces steering sensitivity at higher ground speeds for predictable control.
  • Infinitely variable roller switches control the rear ripper and/or front lift group (when equipped).
  • Proven load-sensing and advanced electro-hydraulics give you superior implement control and responsive hydraulic performance that makes operators' jobs easier.
  • Continuously matching hydraulic flow/pressure to power demands reduces heat and optimizes power.
  • Proportional Priority Pressure-Compensating (PPP-C) valves have different flow rates for the head and rod ends of the cylinder, so you can count on consistent, predictable implement response.
  • Hydraulic flow is proportioned to give you confidence that all implements operate simultaneously without slowing engine or implement speed.
  • Blade Float allows the blade to move freely under its own weight.
  • Float both cylinders, to allow blade can follow the contours of the ground.
  • Float one cylinder to permit the toe of the blade to follow a hard surface while the operator controls slope with the other cylinder.
  • Large, independent hydraulic oil supplies prevent cross-contamination and provide proper cooling, reducing heat build-up and extending component life.
  • Cat XT™ hose allows high pressures for maximum power and reduced downtime.
  • Articulation Return-to-Center automatically returns the machine to a straight frame position from any angle with the touch of a button.
  • Choose the blade lift modulation mode that best fits your application or operating style: fine, normal, or coarse.

PERFORMANCE AND PRODUCTIVITY

  • Cat C9.3 engine delivers the performance you need to maintain consistent grading speeds for maximum productivity.
  • Engine technology reduces emissions, lowers combustion chamber temperatures and optimizes combustion to generate more work output from every unit of fuel.
  • Hydraulic demand fan automatically adjusts according to engine cooling requirements. When cooling demand is reduced, you benefit from more power to the ground and improved fuel efficiency.
  • Electronic Throttle Control improves productivity providing the best match of power and torque for the demands of each application.* Engine Idle Shutdown feature can be software-enabled by your Cat dealer to shut down the engine after a set period of time to save you fuel and help reduce emissions.
  • Optional Reversing Fan helps clear debris from cooling system without need to stop the machine from work.
  • Standard Automatic Differential Lock/Unlock unlocks the differential during a turn and re-locks when straight for easier operation and to help protect the power train.
  • Full Electronic Clutch Pressure Control system optimizes inching modulation for smooth shifts and directional changes, reducing stress on gears.
  • Programmable AutoShift option simplifies operation by allowing the operator to program the transmission to shift at optimal points to match each application.
  • New standard Eco Mode can saves fuel by reducing engine speed so the machine works in a more efficient range. Fuel savings is up to 10 percent, depending on the application.
  • Power Shift Countershaft Transmission is matched to the Cat engine to maximize power to the ground.
  • Engine Over-Speed Protection prevents downshifting until an acceptable safe travel speed has been established.
  • All Wheel Drive (AWD) transfers power to the ground as needed, allowing you to work more efficiently with mud, gravel, sand and snow. Increased traction reduces slippage across the cross slope.
  • Sealed spindle keeps front axle bearings lubricated and protected from contaminants. Cat “Live Spindle” design places the larger tapered roller bearing on the outside, where the load is greater, extending life.
  • Bolt-on modular rear axle improves serviceability and contamination control with easy access to differential components.
  • Oil-bath, multi-disc service brakes are hydraulically actuated for smooth, predictable braking and lower operating costs. Brakes are located at each tandem wheel and have a large total brake surface area to provide dependable stopping power and longer life.

HEAVY DUTY CONSTRUCTION

  • One-piece forged steel circle stands up to high stress loads, and a sacrificial wear system helps keep your service time and costs down.
  • Articulation hitch features a large tapered roller bearing to carry loads evenly. The bearing is sealed preventing contamination and a locking pin prevents articulation during service or transport.
  • Drawbar, circle and moldboard are designed to make it easy for you to keep the components tight.
  • Shims and patented top-adjust wear strips are easy to add or replace, dramatically reducing downtime.
  • Nylon composite wear inserts maximize circle torque and component life.
  • Sacrificial brass wear strips between the blade mounting group and moldboard can be easily adjusted and replaced.
  • Shim less Moldboard Retention System uses vertical and horizontal adjusting screws to keep moldboard wear strips aligned for reduced blade chatter and precise control.
  • With an aggressive blade angle, optimized moldboard curvature and large throat clearance, you work more efficiently by allowing material to roll more freely along the blade.
  • Heat-treated rails, hardened cutting edges and end bits, and heavy duty bolts provide greater moldboard reliability and long service life.
  • Link bar allows extreme moldboard positioning for easier bank sloping and ditch cutting/cleaning.

TECHNOLOGY THAT GETS WORK DONE

  • Grade technologies combine digital design data, in-cab guidance, and automatic blade controls to enhance grading accuracy, reduce rework, and lower costs related to production earthmoving and rough, fine and finish grade applications.
  • Cat GRADE with Cross Slope is an optional, fully integrated, factory installed system that helps operators maintain desired cross slope by automatically controlling one side of the blade. System is job-ready from day one, and scalable for the future with AccuGrade™ upgrade kits that provide additional 2D and/or 3D control.
  • AccuGrade Attachment Ready Option can be ordered as a factory- or dealer-installed option. Includes built-in mounting points and internal wiring, to facilitate installation of AccuGrade grade control system.
  • AccuGrade uses positioning and guidance technologies, machine sensors, and automatic blade control to help operators get to grade faster, easier and more efficiently.
  • In-cab guidance gives operators detailed information to work confidently and achieve greater accuracy, in fewer passes, using less material.
  • Operators can stay on grade and improve productivity and accuracy by nearly 50 percent over conventional methods.
  • Grade stakes and checkers are minimized, helping to make the work site safer and more cost effective.
  • AccuGrade technologies include Cross Slope, Sonic, Laser, GPS, and/or Universal Total Station (UTS).
  • Cat Product Link™ takes guesswork out of equipment management with remote monitoring capabilities for one machine or an entire fleet.
  • Tracks asset location, hours, fuel usage, diagnostic codes, idle time and more through the secure VisionLink™ user interface.
  • Smart Machine Systems enhance productivity -
  1. Cat Messenger, combined with full systems integration, enhances diagnostic capability for quick analysis of critical data.
  2. Electronic Technician (Cat ET) lets service technicians access stored diagnostic data and configure machine parameters through the Cat Data Link.
  3. Low Battery Elevated Idle raises idle speed when low system voltage is detected, ensuring adequate system voltage and improving battery reliability.
  4. Automatic Engine Deration protects the engine by automatically lowering engine torque output and alerting the operator if critical conditions are detected.

BUILT-IN SAFETY FEATURES

  • Operator Presence Monitoring System keeps the parking brake engaged and hydraulic implements disabled until the operator is seated and the machine is ready for operation.
  • Speed Sensitive Steering makes steering less sensitive as ground speed increases for enhanced control.
  • Secondary electric hydraulic steering pump automatically engages in case of a drop in steering pressure allowing operator to steer the machine to a stop.
  • Hydraulic lockout disables all implement functions while still providing machine steering control. This is especially useful while roading.
  • Brakes are located at each tandem wheel to eliminate braking loads on the power train. Redundant brake systems utilize accumulators to enable stopping in case of machine failure.
  • Perforated steel tandem walkways and convenient grab rails provide a sturdy platform when moving on, off and around the machine.
  • Circle Drive Slip Clutch protects the drawbar, circle and moldboard from shock loads if the blade encounters an immovable object and reduces the possibility of abrupt directional changes in poor traction conditions.
  • Blade Lift Accumulators absorb impact loads by allowing vertical blade travel. This optional feature reduces wear and impact loading for enhanced operator safety.
  • Safety Features -
  1. Optional rearview camera with in-cab monitor
  2. Grouped, ground level service points
  3. Laminated front window glass
  4. Optional LED Lighting
  5. Ground-level electrical disconnect switch
  6. Ground-level engine shutoff switch
  7. Anti-glare paint eases night operation
  8. Front and rear fenders

TOP-TIER SERVICE AND SUPPORT

  • Cat motor graders are designed to help you increase uptime and reduce costs:
  • Grouped service points and extended service intervals save maintenance time.
  • New optional LED lights in the left hand compartment facilitates machine servicing in low light.
  • Your Cat dealer provides support that is second to none. From machine selection and purchase to training, maintenance support and rebuilds, Cat dealers have the experience and capabilities to help keep you up and running.

Standard Equipment:

Optional Equipment:

    Electrical
    • Alternator, 280 ampere
    • Batteries: extreme duty, 1,400 CCA
    • Lights: Headlights, high
    • Lights: Headlights, low
    • Lights: Working lights, basic
    • Lights: Working lights, plus, LED
    • Lights: Warning: beacon or strobe
    • Lights: Mounting for warning light
    Guards
    • Articulation guard
    • Fenders, front
    • Fenders, rear
    • Front axle guard
    • Sound suppression (bottom)
    • Sound suppression (enclosure)
    • Transmission
    Operator Environment
    • Mirrors, outside: heated 24V
    • Mirrors, outside: mounted
    • Comfort Plus Arrangement
    • Comfort Premium Arrangement
    Power Train
    • All Wheel Drive
    • Precleaner, snow
    • Starter, extreme duty, 1,000 Amps
    • Transmission, autoshift
    Other Attachments
    • AccuGrade ARO
    • Integrated cross slope
    • Accumulators, blade lift
    • Camera, rearview
    • Cat Product Link 321SR
    • Cat Product Link 522
    • Drain, ecology, engine Wiggins
    • Heater, engine coolant: 120V
    • Heater, engine coolant: 240V
    • Hydraulic arrangements with one or more additional hydraulic valves are available for rear ripper, dozer, snow plow and snow wing.
    • Snow wing mounting, frame ready
    • Starting aid, ether
    • Reversing fan, automatic or manual
    Work Tools/g.e.t.
    • Blade extension, left hand, 610 mm (2 ft)
    • Blade extension, right hand, 610 mm (2 ft)
    • Counterweight
    • Cutting edges, curved
    • Endbits, overlay
    • Front lift group, mounting
    • Front lift group, mechanical
    • Grader bit, narrow and super penetration
    • Mid-Mount Scarifier, Package
    • Moldboard: 4267 mm × 610 mm × 22 mm (14 ft × 24 in × 7/8 in)
    • Moldboard: 4267 mm × 686 mm × 25 mm (14 ft × 27 in × 1 in)
    • Push plate
    • Ripper, rear
    • Ripper tooth
    • Scarifier, front
    • Snow Arrangement
    • Snow Wing Ready Package
    • Tow hitch
    Machine Arrangements
    • Canadian Arrangement
    • European Arrangement
    • TUV Roading Arrangement
    Optional Tire Arrangements
    • Rim Size - 9 × 24; Wheel Group - Single-Piece; Tires - 14.0R24
    • Rim Size - 13 × 25; Wheel Group - Single-Piece; Tires - 17.5R25
    • Rim Size - 10 × 24; Wheel Group - Multi-Piece; Tires - 14.0R24
    • Rim Size - 10 × 24; Wheel Group - Multi-Piece; Tires - 14.0-24
    • Rim Size - 14 × 25; Wheel Group - Multi-Piece; Tires - 17.5R25
    • Rim Size - 14 × 25; Wheel Group - Multi-Piece; Tires - 17.5-25
    • Note: Consult your dealer for individual tire width, size and brand.