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Caterpillar 12M Motor Grader

Blades

Blade Tip Range - Backward5 °
Blade Tip Range - Forward40 °
Circle Centershift - Left25.8 in (64 cm)
Circle Centershift - Right25.8 in (64 cm)
Maximum Blade Position Angle90 °
Maximum Depth of Cut28.3 in (71 cm)
Maximum Lift Above Ground16.8 in (41 cm)
Maximum Shoulder Reach Outside of Tires - Left68.6 in (173 cm)
Maximum Shoulder Reach Outside of Tires - Right75 in (191 cm)
Moldboard Sideshift - Left20.1 in (51 cm)
Moldboard Sideshift - Right26 in (66 cm)

Circle

Blade Tip Angle - Front40 °
Blade Tip Angle - Rear5 °
Diameter60.2 in (152 cm)
Max Lift Above Ground16.8 in (41 cm)
Max Reach Outside Tires - Left68.6 in (173 cm)
Max Reach Outside Tires - Right75 in (191 cm)
Shift Left25.8 in (64 cm)
Shift Right25.8 in (64 cm)

Dimensions

Blade Base8.3 ft (2 m)
Front Ground Clearance1.9 ft (0 m)
Ground Clearance - Rear Axle13.6 in (33 cm)
Height - Exhaust Stack112.4 in (284 cm)
Height - Front Axle Center22.5 in (56 cm)
Height - Top of Cab10.8 ft (3 m)
Height - Top of Cylinders113.7 in (287 cm)
Height to Top of Isomount Cab10.8 ft (3 m)
Length - Between Tandem Axles59.5 in (150 cm)
Length - Counterweight to Ripper389.3 in (988 cm)
Length - Front Axle to Mid Tandem232.8 in (589 cm)
Length - Front Axle to Moldboard98.9 in (249 cm)
Length - Front Tire to Rear of Machine334.1 in (848 cm)
Overall Length27.9 ft (8 m)
Rear Ground Clearance1.2 ft (0 m)
Tandem Axle Wheelbase5 ft (2 m)
Wheelbase19.4 ft (6 m)
Width - Outside Front Tires97.7 in (246 cm)
Width - Outside Rear Tires97.7 in (246 cm)
Width - Tire Center Lines84.1 in (213 cm)
Width Over Tires8.2 ft (2 m)

Engine

Base Power (1st Gear) - Net158 hp (118 kw)
Base Power (All Gears) - Net158 hp (118 kw)
Bore4.2 in (10 cm)
Derating Altitude11500 ft (3,505 m)
Displacement403 cu in (0 m)
Engine ModelCat C6.6 ACERT VHP
High - Ambient Capability122 °
Max Power173 hp (129 kw)
Maximum Torque690 lbs/ft
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 °
Stroke5 in (13 cm)
Torque Rise - VHP Plus40%
VHP Plus Range - Net118-144 kW (158-193)
VHP Range - Net118 -129 kW (158-173)

Frame

Circle - Blade Beam Thickness1.4 in (3 cm)
Circle - Diameter60.2 in (152 cm)
Drawbar - Height6 in (15 cm)
Drawbar - Thickness0.4 in (0 cm)
Drawbar - Width3 in (8 cm)
Front Axle - Height to Center22.5 in (56 cm)
Front Axle - Total Oscillation per Side32 °
Front Axle - Wheel Lean - Left/Right18 °
Front Frame Structure - Height0.9 ft (0 m)
Front Frame Structure - Width0.9 ft (0 m)

Front Axle

Ground Clearance1.9 ft (0 m)
Oscillation - Total32 °
Wheel Lean18 °

Hydraulic System

Circuit TypeElectro-hydraulic closed center, load sensing,
Maximum System Pressure3500 psi
Pump Flow51 gal/min (193 l/min)
Pump Output51 gal/min (193 l/min)
Pump TypeVariable piston
Relief Valve Pressure3500 psi
Standby Pressure450 psi

Moldboard

Arc Radius16.3 in (41 cm)
Blade Down Pressure27066.2 lbs (12,277 kg)
Blade Down Pressure - Base GVW17566 lbs (7,968 kg)
Blade Down Pressure - Maximum GVW28254 lbs (12,816 kg)
Blade Pull - Base GVW20830 lbs (9,448 kg)
Blade Pull - Maximum GVW25862 lbs (11,731 kg)
Blade Pull at Max Weight26465 lbs (12,004 kg)
Blade Width12 ft (4 m)
Cutting Edge Thickness0.6 in (0 cm)
Cutting Edge Width6 in (15 cm)
End Bit - Thickness0.6 in (0 cm)
End Bit - Width6 in (15 cm)
Max Depth of Cut28.3 in (71 cm)
Moldboard - Height24 in (61 cm)
Moldboard - Thickness0.9 in (0 cm)
Moldboard Height24 in (61 cm)
Moldboard Length12 ft (4 m)
Moldboard Thickness0.9 in (0 cm)
Moldboard Width12 ft (4 m)
Side Shift Left20.1 in (51 cm)
Side Shift Right26 in (66 cm)
Throat Clearance4.9 in (10 cm)

Operating Specifications

Articulation Angle - Left/Right20 °
Circle Gearbox Fluid Capacity1.8 gal (4 l)
Cooling System Fluid Capacity10.4 gal (38 l)
Forward - 1st2.4 mph (3 kph)
Forward - 2nd3.3 mph (5 kph)
Forward - 3rd4.8 mph (6 kph)
Forward - 4th6.5 mph (10 kph)
Forward - 5th10.2 mph (16 kph)
Forward - 6th13.8 mph (21 kph)
Forward - 7th19 mph (31 kph)
Forward - 8th27.7 mph (43 kph)
Fuel Capacity90 gal (341 l)
Hydraulic System Fluid Capacity16 gal (61 l)
Max Operation Weight - Front Axle15284 lbs (6,933 kg)
Max Operation Weight - Rear Axle29406 lbs (13,339 kg)
Max Operation Weight - Total44690 lbs (20,271 kg)
Operating Weight 32016 lbs (14,522 kg)
Rear Diff/Final Drive Fluid Capacity13.2 gal (49 l)
Reverse - 1st2 mph
Reverse - 2nd3.8 mph (5 kph)
Reverse - 3rd5.6 mph (8 kph)
Reverse - 4th8.6 mph (13 kph)
Reverse - 5th16.1 mph (26 kph)
Reverse - 6th23.5 mph (37 kph)
Std Operation Weight - Front Axle8836 lbs (4,008 kg)
Std Operation Weight - Rear Axle23180 lbs (10,514 kg)
Std Operation Weight - Total32016 lbs (14,522 kg)
Steering Range - Left/Right47.5 °
Tandem Case Fluid Capacity (each)16.9 gal (61 l)
Top Speed - Forward27.7 mph (43 kph)
Top Speed - Reverse23.5 mph (37 kph)
Turning Radius - Outside Front Tires24.5 ft (7 m)

Power Train

Brakes - ParkingMultiple oil disc
Brakes - SecondaryDual circuit control system
Brakes - ServiceMultiple oil-disc
Brakes - Service - Surface Area3565 cu in (0 m)
Forward/Reverse Gears8 Fwd / 6 Rev
TransmissionDirect drive, power shift, countershaft

Ripper

Machine Length Increase, Beam Raised39.2 in (99 cm)
Penetration Force18911 lbs (8,578 kg)
Pry-Out Force25972 lbs (11,781 kg)

Scarifier

Front, V-Type, 5 or 11 Tooth - Scarifier Shank Holder Spacing4.6 in (10 cm)
Front, V-Type, 5 or 11 Tooth - Scarifying Depth, Maximum18.4 in (46 cm)
Front, V-Type, 5 or 11 Tooth - Working Width47.4 in (119 cm)
Mid, Straight - Scarifier Shank Holder Spacing4.4 in (10 cm)
Mid, Straight - Scarifier Shank Holders17
Mid, Straight - Scarifying Depth, Maximum12.5 in (30 cm)
Mid, Straight - Working Width71 in (180 cm)
Mid, V-Type - Scarifier Shank Holder Spacing4.6 in (10 cm)
Mid, V-Type - Scarifier Shank Holders11
Mid, V-Type - Scarifying Depth, Maximum11.5 in (28 cm)
Mid, V-Type - Working Width46.6 in (117 cm)
Rear - Scarifier Shank Holder Spacing10.5 in (25 cm)
Rear - Scarifier Shank Holders9
Rear - Scarifying Depth, Maximum10.5 in (25 cm)
Rear - Working Width91 in (231 cm)

Service Refill

Circle Drive Housing1.8 gal (4 l)
Cooling System10.4 gal (38 l)
Engine Oil4.1 gal (15 l)
Front Wheel Spindle Bearing Housing0.1 gal (0 l)
Fuel Capacity90 gal (341 l)
Hydraulic System - Tank16 gal (61 l)
Tandem Housing - Each16.9 gal (61 l)
Transmission - Differential - Final Drives13.2 gal (49 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 °
Turning Radius24.5 ft (7 m)

Tandems

Drive Chain Pitch1.8 in (3 cm)
Height19.8 in (48 cm)
Sidewall Thickness - Inner0.5 in (0 cm)
Sidewall Thickness - Outer0.6 in (0 cm)
Tandem Oscillation - Front Down25 °
Tandem Oscillation - Front Up15 °
Wheel Axle Spacing59.5 in (150 cm)
Width6.8 in (15 cm)

Transmission

Max Speed - Forward27.7 mph (43 kph)
Max Speed - Reverse23.5 mph (37 kph)
Number of Gears - Forward8
Number of Gears - Reverse6
Transmission Typedirect drive, power shift, countershaft

Weights

Gross Vehicle Weight - Base - Front Axle9919 lbs (4,499 kg)
Gross Vehicle Weight - Base - Rear Axle23145 lbs (10,499 kg)
Gross Vehicle Weight - Base - Total33064 lbs (14,998 kg)
Gross Vehicle Weight - Maximum - Front Axle15954 lbs (7,237 kg)
Gross Vehicle Weight - Maximum - Rear Axle48736 lbs (22,107 kg)
Gross Vehicle Weight - Maximum - Total44690 lbs (20,271 kg)

See all of the Caterpillar 12Ms we have listed for sale.
  • A Caterpillar 12M From Cleveland Brothers for $299,000.00 USD


  • A Caterpillar 12M From Blanchard CAT for $138,850.00 USD


  • A 2008 Caterpillar 12M From 4M Iron LLC for $97,500.00 USD






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    39.04690 \\ -77.49030 \\ Ashburn \\ VA