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Caterpillar 12M Motor Grader

The Caterpillar 12M Motor Grader is a robust and versatile machine designed for efficient road maintenance and construction work. With a powerful Cat C6.6 ACERT VHP engine producing up to 173 horsepower, this grader offers exceptional performance in a variety of applications. Equipped with a range of blade and circle adjustments, the 12M allows for precise grading and shaping of roads, shoulders, and ditches. Its advanced hydraulic system provides excellent control and maneuverability, while the sturdy frame and construction ensure durability and reliability in challenging work environments. Explore the detailed specifications of the Caterpillar 12M Motor Grader to see how it can enhance your next project.


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General Specifications

Blades

Blade Tip Range - Backward5 degrees
Blade Tip Range - Forward40 degrees
Circle Centershift - Left26 in (66 cm)
Circle Centershift - Right26 in (66 cm)
Maximum Blade Position Angle90 degrees
Maximum Depth of Cut28 in (72 cm)
Maximum Lift Above Ground17 in (43 cm)
Maximum Shoulder Reach Outside of Tires - Left69 in (174 cm)
Maximum Shoulder Reach Outside of Tires - Right75 in (190 cm)
Moldboard Sideshift - Left20 in (51 cm)
Moldboard Sideshift - Right26 in (66 cm)

Circle

Blade Tip Angle - Front40 degrees
Blade Tip Angle - Rear5 degrees
Diameter60 in (153 cm)
Max Lift Above Ground17 in (43 cm)
Max Reach Outside Tires - Left69 in (174 cm)
Max Reach Outside Tires - Right75 in (190 cm)
Shift Left26 in (66 cm)
Shift Right26 in (66 cm)

Dimensions

Blade Base8 ft (3 m)
Front Ground Clearance2 ft (1 m)
Ground Clearance - Rear Axle14 in (35 cm)
Height - Exhaust Stack112 in (285 cm)
Height - Front Axle Center23 in (57 cm)
Height - Top of Cab11 ft (3 m)
Height - Top of Cylinders114 in (289 cm)
Height to Top of Isomount Cab11 ft (3 m)
Length - Between Tandem Axles60 in (151 cm)
Length - Counterweight to Ripper389 in (989 cm)
Length - Front Axle to Mid Tandem233 in (591 cm)
Length - Front Axle to Moldboard99 in (251 cm)
Length - Front Tire to Rear of Machine334 in (849 cm)
Overall Length28 ft (9 m)
Rear Ground Clearance1 ft (0 m)
Tandem Axle Wheelbase5 ft (2 m)
Wheelbase19 ft (6 m)
Width - Outside Front Tires98 in (248 cm)
Width - Outside Rear Tires98 in (248 cm)
Width - Tire Center Lines84 in (214 cm)
Width Over Tires8 ft (2 m)

Engine

Base Power (1st Gear) - Net158 hp (118 kw)
Base Power (All Gears) - Net158 hp (118 kw)
Bore4 in (11 cm)
Derating Altitude11,500 ft (3,505 m)
Displacement403 cu in (6,604 cu cm)
Engine ModelCat C6.6 ACERT VHP
High - Ambient Capability122 degrees
Max Power173 hp (129 kw)
Maximum Torque690 lbs ft (936 nm)
Net Power Gear 1-2163 hp (122 kw)
Net Power Gear 4-6173 hp (129 kw)
Net Power Gear 5-6173 hp (129 kw)
Net Power Gears 7-8173 hp (129 kw)
Number of Cylinders6
Power Measured @2000 rpm
Standard - Ambient Capability109 degrees
Stroke5 in (13 cm)
Torque Rise - V Plus40%
V Plus Range - Net118-144 kW (158-193)
V Range - Net118 -129 kW (158-173)

Frame

Circle - Blade Beam Thickness1 in (4 cm)
Circle - Diameter60 in (153 cm)
Drawbar - Height6 in (15 cm)
Drawbar - Thickness0 in (1 cm)
Drawbar - Width3 in (8 cm)
Front Axle - Height to Center23 in (57 cm)
Front Axle - Total Oscillation per Side32 degrees
Front Axle - Wheel Lean - Left/Right18 degrees
Front Frame Structure - Height1 ft (0 m)
Front Frame Structure - Width1 ft (0 m)

Front Axle

Ground Clearance2 ft (1 m)
Oscillation - Total32 degrees
Wheel Lean18 degrees

Hydraulic System

Circuit TypeElectro-hydraulic closed center load sensing
Maximum System Pressure3500 psi
Pump Flow51 gpm (193 lpm)
Pump Output51 gpm (193 lpm)
Pump TypeVariable piston
Relief Valve Pressure3500 psi
Standby Pressure450 psi

Moldboard

Arc Radius16 in (41 cm)
Blade Down Pressure27,066 lbs (12,277 kg)
Blade Down Pressure - Base GVW17,566 lbs (7,968 kg)
Blade Down Pressure - Maximum GVW28,254 lbs (12,816 kg)
Blade Pull - Base GVW20,830 lbs (9,448 kg)
Blade Pull - Maximum GVW25,862 lbs (11,731 kg)
Blade Pull at Max Weight26,465 lbs (12,004 kg)
Blade Width12 ft (4 m)
Cutting Edge Thickness1 in (2 cm)
Cutting Edge Width6 in (15 cm)
End Bit - Thickness1 in (2 cm)
End Bit - Width6 in (15 cm)
Max Depth of Cut28 in (72 cm)
Moldboard - Height24 in (61 cm)
Moldboard - Thickness1 in (2 cm)
Moldboard Height24 in (61 cm)
Moldboard Length12 ft (4 m)
Moldboard Thickness1 in (2 cm)
Moldboard Width12 ft (4 m)
Side Shift Left20 in (51 cm)
Side Shift Right26 in (66 cm)
Throat Clearance5 in (12 cm)

Operating Specifications

Articulation Angle - Left/Right20 degrees
Circle Gearbox Fluid Capacity2 gal (7 l)
Cooling System Fluid Capacity10 gal (39 l)
Forward - 1st2 mph (4 kph)
Forward - 2nd3 mph (5 kph)
Forward - 3rd5 mph (8 kph)
Forward - 4th7 mph (10 kph)
Forward - 5th10 mph (16 kph)
Forward - 6th14 mph (22 kph)
Forward - 7th19 mph (31 kph)
Forward - 8th28 mph (45 kph)
Fuel Capacity90 gal (341 l)
Hydraulic System Fluid Capacity16 gal (61 l)
Max Operation Weight - Front Axle15,284 lbs (6,933 kg)
Max Operation Weight - Rear Axle29,406 lbs (13,338 kg)
Max Operation Weight - Total44,690 lbs (20,271 kg)
Operating Weight 32,016 lbs (14,522 kg)
Rear Diff/Final Drive Fluid Capacity13 gal (50 l)
Reverse - 1st2
Reverse - 2nd4 mph (6 kph)
Reverse - 3rd6 mph (9 kph)
Reverse - 4th9 mph (14 kph)
Reverse - 5th16 mph (26 kph)
Reverse - 6th24 mph (38 kph)
Std Operation Weight - Front Axle8,836 lbs (4,008 kg)
Std Operation Weight - Rear Axle23,180 lbs (10,514 kg)
Std Operation Weight - Total32,016 lbs (14,522 kg)
Steering Range - Left/Right47.5 degrees
Tandem Case Fluid Capacity (each)17 gal (64 l)
Top Speed - Forward28 mph (45 kph)
Top Speed - Reverse24 mph (38 kph)
Turning Radius - Outside Front Tires25 ft (7 m)

Power Train

Brakes - ParkingMultiple oil disc
Brakes - SecondaryDual circuit control system
Brakes - ServiceMultiple oil-disc
Brakes - Service - Surface Area3,565 cu in (58,420 cu cm)
Forward/Reverse Gears8 Fwd / 6 Rev
TransmissionDirect drive power shift countershaft

Ripper

Machine Length Increase, Beam Raised39 in (100 cm)
Penetration Force18,911 lbs (8,578 kg)
Pry-Out Force25,972 lbs (11,781 kg)

Scarifier

Front, V-Type, 5 or 11 Tooth - Scarifier Shank Holder Spacing5 in (12 cm)
Front, V-Type, 5 or 11 Tooth - Scarifying Depth, Maximum18 in (47 cm)
Front, V-Type, 5 or 11 Tooth - Working Width47 in (120 cm)
Mid, Straight - Scarifier Shank Holder Spacing4 in (11 cm)
Mid, Straight - Scarifier Shank Holders17
Mid, Straight - Scarifying Depth, Maximum13 in (32 cm)
Mid, Straight - Working Width71 in (180 cm)
Mid, V-Type - Scarifier Shank Holder Spacing5 in (12 cm)
Mid, V-Type - Scarifier Shank Holders11
Mid, V-Type - Scarifying Depth, Maximum12 in (29 cm)
Mid, V-Type - Working Width47 in (118 cm)
Rear - Scarifier Shank Holder Spacing11 in (27 cm)
Rear - Scarifier Shank Holders9
Rear - Scarifying Depth, Maximum11 in (27 cm)
Rear - Working Width91 in (231 cm)

Service Refill

Circle Drive Housing2 gal (7 l)
Cooling System10 gal (39 l)
Engine Oil4 gal (16 l)
Front Wheel Spindle Bearing Housing0 gal (0 l)
Fuel Capacity90 gal (341 l)
Hydraulic System - Tank16 gal (61 l)
Tandem Housing - Each17 gal (64 l)
Transmission - Differential - Final Drives13 gal (50 l)

Standards

BrakesISO 3450:1996
ROPS/FOPSISO 3471:1992 / ISO 3449:1992
SoundISO 6394:1998 / ISO 6395:1988
SteeringISO 5010:1992

Steering System

Articulation Angle20 degrees
Turning Radius25 ft (7 m)

Tandems

Drive Chain Pitch2 in (5 cm)
Height20 in (50 cm)
Sidewall Thickness - Inner1 in (1 cm)
Sidewall Thickness - Outer1 in (2 cm)
Tandem Oscillation - Front Down25 degrees
Tandem Oscillation - Front Up15 degrees
Wheel Axle Spacing60 in (151 cm)
Width7 in (17 cm)

Transmission

Max Speed - Forward28 mph (45 kph)
Max Speed - Reverse24 mph (38 kph)
Number of Gears - Forward8
Number of Gears - Reverse6
Transmission Typedirect drive power shift countershaft

Weights

Gross Vehicle Weight - Base - Front Axle9,919 lbs (4,499 kg)
Gross Vehicle Weight - Base - Rear Axle23,145 lbs (10,498 kg)
Gross Vehicle Weight - Base - Total33,064 lbs (14,998 kg)
Gross Vehicle Weight - Maximum - Front Axle15,954 lbs (7,237 kg)
Gross Vehicle Weight - Maximum - Rear Axle48,736 lbs (22,106 kg)
Gross Vehicle Weight - Maximum - Total44,690 lbs (20,271 kg)

  • Caterpillar 12Ms currently for sale
  • A Caterpillar 12M From Cleveland Brothers for $210,526.00 USD
  • A Caterpillar 12M From Ziegler CAT for $144,900.00 USD





  • 39.95234 \\ -75.16379 \\ Fort Washington \\ PA