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M Series Motor Graders(Non Current)

Cat motor graders continue their reputation for offering world-class cab and controls, advanced electronics and hydraulics, and optimum productivity... to match your needs in any application.

12M Motor Grader

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.

Product Details

Engine

Base Power (1st Gear) - Net 118 kW
Engine Model C6.6 ACERT VHP
Bore 105 mm²
Stroke 125 mm²
Speed at 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

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

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

Frame

Drawbar - Width 76.2 mm²
Circle - Diameter 1530 mm²
Circle - Blade Beam Thickness 35 mm²
Drawbar - Height 152 mm²
Front Frame Structure - Height 254 mm²
Front Frame Structure - Thickness 16 mm²
Front Frame Structure - Width 254 mm²
Drawbar - Thickness 9.5 mm²
Drawbar - Yoke Bar Thickness 19.1 mm²
Front Axle - Height to Center 572 mm²
Front Axle - Wheel Lean - Left/Right 18°
Front Axle - Total Oscillation per Side 32°

Tandems

Height 502 mm²
Width 172 mm²
Sidewall Thickness - Inner 14 mm²
Sidewall Thickness - Outer 16 mm²
Drive Chain Pitch 44.5 mm²
Wheel Axle Spacing 1510 mm²
Tandem Oscillation - Front Up 15°
Tandem Oscillation - Front Down 25°

Moldboard

Blade Width 3.7 m
Moldboard - Height 609.6 mm²
Moldboard - Thickness 22 mm²
Arc Radius 413 mm²
Throat Clearance 124 mm²
Cutting Edge Width 152.4 mm²
Cutting Edge Thickness 16 mm²
End Bit - Width 152.4 mm²
End Bit - Thickness 16 mm²
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

Blade Range

Circle Centershift - Right 656 mm²
Circle Centershift - Left 656 mm²
Moldboard Sideshift - Right 660 mm²
Moldboard Sideshift - Left 510 mm²
Maximum Blade Position Angle 90°
Blade Tip Range - Forward 40°
Blade Tip Range - Backward
Maximum Shoulder Reach Outside of Tires - Right 1905 mm²
Maximum Shoulder Reach Outside of Tires - Left 1742 mm²
Maximum Lift Above Ground 427 mm²
Maximum Depth of Cut 720 mm²

Scarifier

Front, V-Type, 5 or 11 Tooth - Scarifier Shank Holder Spacing 116 mm²
Front, V-Type, 5 or 11 Tooth - Scarifier Shank Holders 5 / 11
Front, V-Type, 5 or 11 Tooth - Scarifying Depth, Maximum 467 mm²
Front, V-Type, 5 or 11 Tooth - Working Width 1205 mm²
Mid, Straight - Scarifier Shank Holder Spacing 111 mm²
Mid, Straight - Scarifier Shank Holders 17
Mid, Straight - Scarifying Depth, Maximum 317 mm²
Mid, Straight - Working Width 1800 mm²
Mid, V-Type - Scarifier Shank Holder Spacing 116 mm²
Mid, V-Type - Scarifier Shank Holders 11
Mid, V-Type - Scarifying Depth, Maximum 292 mm²
Mid, V-Type - Working Width 1184 mm²
Rear - Scarifying Depth, Maximum 266 mm²
Rear - Working Width 2300 mm²
Rear - Scarifier Shank Holders 9
Rear - Scarifier Shank Holder Spacing 267 mm²

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

Dimensions

Height - Top of Cab 3278 mm²
Length - Counterweight to Ripper 9889 mm²
Width - Outside Front Tires 2481 mm²
Length - Front Axle to Mid Tandem 5915 mm²
Length - Front Tire to Rear of Machine 8488 mm²
Length - Front Axle to Moldboard 2511 mm²
Length - Between Tandem Axles 1511 mm²
Width - Outside Rear Tires 2481 mm²
Width - Tire Center Lines 2136 mm²
Height - Front Axle Center 572 mm²
Height - Exhaust Stack 2855 mm²
Height - Top of Cylinders 2890 mm²
Ground Clearance - Rear Axle 347 mm²

Standards

Brakes ISO 3450:1996
ROPS/FOPS ISO 3471:1992 / ISO 3449:1992
Sound ISO 6394:1998 / ISO 6395:1988
Steering ISO 5010:1992

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.
Catepillar Equipments

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