Caterpillar 12M Motor Grader Specs, Weight & Dimensions at Equipment Wiki

Contents

Blades

Blade Tip Range – Backward	5 degrees
Blade Tip Range – Forward	40 degrees
Circle Centershift – Left	26 in (66 cm)
Circle Centershift – Right	26 in (66 cm)
Maximum Blade Position Angle	90 degrees
Maximum Depth of Cut	28 in (72 cm)
Maximum Lift Above Ground	17 in (43 cm)
Maximum Shoulder Reach Outside of Tires – Left	69 in (174 cm)
Maximum Shoulder Reach Outside of Tires – Right	75 in (190 cm)
Moldboard Sideshift – Left	20 in (51 cm)
Moldboard Sideshift – Right	26 in (66 cm)

Blade Tip Angle – Front	40 degrees
Blade Tip Angle – Rear	5 degrees
Diameter	60 in (153 cm)
Max Lift Above Ground	17 in (43 cm)
Max Reach Outside Tires – Left	69 in (174 cm)
Max Reach Outside Tires – Right	75 in (190 cm)
Shift Left	26 in (66 cm)
Shift Right	26 in (66 cm)

Blade Base	8 ft (3 m)
Front Ground Clearance	2 ft (1 m)
Ground Clearance – Rear Axle	14 in (35 cm)
Height – Exhaust Stack	112 in (285 cm)
Height – Front Axle Center	23 in (57 cm)
Height – Top of Cab	11 ft (3 m)
Height – Top of Cylinders	114 in (289 cm)
Height to Top of Isomount Cab	11 ft (3 m)
Length – Between Tandem Axles	60 in (151 cm)
Length – Counterweight to Ripper	389 in (989 cm)
Length – Front Axle to Mid Tandem	233 in (591 cm)
Length – Front Axle to Moldboard	99 in (251 cm)
Length – Front Tire to Rear of Machine	334 in (849 cm)
Overall Length	28 ft (9 m)
Rear Ground Clearance	1 ft (0 m)
Tandem Axle Wheelbase	5 ft (2 m)
Wheelbase	19 ft (6 m)
Width – Outside Front Tires	98 in (248 cm)
Width – Outside Rear Tires	98 in (248 cm)
Width – Tire Center Lines	84 in (214 cm)
Width Over Tires	8 ft (2 m)

Base Power (1st Gear) – Net	158 hp (118 kw)
Base Power (All Gears) – Net	158 hp (118 kw)
Bore	4 in (11 cm)
Derating Altitude	11,500 ft (3,505 m)
Displacement	403 cu in (6,604 cu cm)
Engine Model	Cat C6.6 ACERT VHP
High – Ambient Capability	122 degrees
Max Power	173 hp (129 kw)
Maximum Torque	690 lbs ft (936 nm)
Net Power Gear 1-2	163 hp (122 kw)
Net Power Gear 4-6	173 hp (129 kw)
Net Power Gear 5-6	173 hp (129 kw)
Net Power Gears 7-8	173 hp (129 kw)
Number of Cylinders	6
Power Measured @	2000 rpm
Standard – Ambient Capability	109 degrees
Stroke	5 in (13 cm)
Torque Rise – VHP Plus	40%
VHP Plus Range – Net	118-144 kW (158-193)
VHP Range – Net	118 -129 kW (158-173)

Circle – Blade Beam Thickness	1 in (4 cm)
Circle – Diameter	60 in (153 cm)
Drawbar – Height	6 in (15 cm)
Drawbar – Thickness	0 in (1 cm)
Drawbar – Width	3 in (8 cm)
Front Axle – Height to Center	23 in (57 cm)
Front Axle – Total Oscillation per Side	32 degrees
Front Axle – Wheel Lean – Left/Right	18 degrees
Front Frame Structure – Height	1 ft (0 m)
Front Frame Structure – Width	1 ft (0 m)

Circuit Type	Electro-hydraulic closed center, load sensing,
Maximum System Pressure	3500 psi
Pump Flow	51 gpm (193 lpm)
Pump Output	51 gpm (193 lpm)
Pump Type	Variable piston
Relief Valve Pressure	3500 psi
Standby Pressure	450 psi

Arc Radius	16 in (41 cm)
Blade Down Pressure	27,066 lbs (12,277 kg)
Blade Down Pressure – Base GVW	17,566 lbs (7,968 kg)
Blade Down Pressure – Maximum GVW	28,254 lbs (12,816 kg)
Blade Pull – Base GVW	20,830 lbs (9,448 kg)
Blade Pull – Maximum GVW	25,862 lbs (11,731 kg)
Blade Pull at Max Weight	26,465 lbs (12,004 kg)
Blade Width	12 ft (4 m)
Cutting Edge Thickness	1 in (2 cm)
Cutting Edge Width	6 in (15 cm)
End Bit – Thickness	1 in (2 cm)
End Bit – Width	6 in (15 cm)
Max Depth of Cut	28 in (72 cm)
Moldboard – Height	24 in (61 cm)
Moldboard – Thickness	1 in (2 cm)
Moldboard Height	24 in (61 cm)
Moldboard Length	12 ft (4 m)
Moldboard Thickness	1 in (2 cm)
Moldboard Width	12 ft (4 m)
Side Shift Left	20 in (51 cm)
Side Shift Right	26 in (66 cm)
Throat Clearance	5 in (12 cm)

Articulation Angle – Left/Right	20 degrees
Circle Gearbox Fluid Capacity	2 gal (7 l)
Cooling System Fluid Capacity	10 gal (39 l)
Forward – 1st	2 mph (4 kph)
Forward – 2nd	3 mph (5 kph)
Forward – 3rd	5 mph (8 kph)
Forward – 4th	7 mph (10 kph)
Forward – 5th	10 mph (16 kph)
Forward – 6th	14 mph (22 kph)
Forward – 7th	19 mph (31 kph)
Forward – 8th	28 mph (45 kph)
Fuel Capacity	90 gal (341 l)
Hydraulic System Fluid Capacity	16 gal (61 l)
Max Operation Weight – Front Axle	15,284 lbs (6,933 kg)
Max Operation Weight – Rear Axle	29,406 lbs (13,338 kg)
Max Operation Weight – Total	44,690 lbs (20,271 kg)
Operating Weight	32,016 lbs (14,522 kg)
Rear Diff/Final Drive Fluid Capacity	13 gal (50 l)
Reverse – 1st	2
Reverse – 2nd	4 mph (6 kph)
Reverse – 3rd	6 mph (9 kph)
Reverse – 4th	9 mph (14 kph)
Reverse – 5th	16 mph (26 kph)
Reverse – 6th	24 mph (38 kph)
Std Operation Weight – Front Axle	8,836 lbs (4,008 kg)
Std Operation Weight – Rear Axle	23,180 lbs (10,514 kg)
Std Operation Weight – Total	32,016 lbs (14,522 kg)
Steering Range – Left/Right	47.5 degrees
Tandem Case Fluid Capacity (each)	17 gal (64 l)
Top Speed – Forward	28 mph (45 kph)
Top Speed – Reverse	24 mph (38 kph)
Turning Radius – Outside Front Tires	25 ft (7 m)

Brakes – Parking	Multiple oil disc
Brakes – Secondary	Dual circuit control system
Brakes – Service	Multiple oil-disc
Brakes – Service – Surface Area	3,565 cu in (58,420 cu cm)
Forward/Reverse Gears	8 Fwd / 6 Rev
Transmission	Direct drive, power shift, countershaft

Machine Length Increase, Beam Raised	39 in (100 cm)
Penetration Force	18,911 lbs (8,578 kg)
Pry-Out Force	25,972 lbs (11,781 kg)

Front, V-Type, 5 or 11 Tooth – Scarifier Shank Holder Spacing	5 in (12 cm)
Front, V-Type, 5 or 11 Tooth – Scarifying Depth, Maximum	18 in (47 cm)
Front, V-Type, 5 or 11 Tooth – Working Width	47 in (120 cm)
Mid, Straight – Scarifier Shank Holder Spacing	4 in (11 cm)
Mid, Straight – Scarifier Shank Holders	17
Mid, Straight – Scarifying Depth, Maximum	13 in (32 cm)
Mid, Straight – Working Width	71 in (180 cm)
Mid, V-Type – Scarifier Shank Holder Spacing	5 in (12 cm)
Mid, V-Type – Scarifier Shank Holders	11
Mid, V-Type – Scarifying Depth, Maximum	12 in (29 cm)
Mid, V-Type – Working Width	47 in (118 cm)
Rear – Scarifier Shank Holder Spacing	11 in (27 cm)
Rear – Scarifier Shank Holders	9
Rear – Scarifying Depth, Maximum	11 in (27 cm)
Rear – Working Width	91 in (231 cm)

Circle Drive Housing	2 gal (7 l)
Cooling System	10 gal (39 l)
Engine Oil	4 gal (16 l)
Front Wheel Spindle Bearing Housing	0 gal (0 l)
Fuel Capacity	90 gal (341 l)
Hydraulic System – Tank	16 gal (61 l)
Tandem Housing – Each	17 gal (64 l)
Transmission – Differential – Final Drives	13 gal (50 l)

Articulation Angle	20 degrees
Turning Radius	25 ft (7 m)

Drive Chain Pitch	2 in (5 cm)
Height	20 in (50 cm)
Sidewall Thickness – Inner	1 in (1 cm)
Sidewall Thickness – Outer	1 in (2 cm)
Tandem Oscillation – Front Down	25 degrees
Tandem Oscillation – Front Up	15 degrees
Wheel Axle Spacing	60 in (151 cm)
Width	7 in (17 cm)

Max Speed – Forward	28 mph (45 kph)
Max Speed – Reverse	24 mph (38 kph)
Number of Gears – Forward	8
Number of Gears – Reverse	6
Transmission Type	direct drive, power shift, countershaft

Gross Vehicle Weight – Base – Front Axle	9,919 lbs (4,499 kg)
Gross Vehicle Weight – Base – Rear Axle	23,145 lbs (10,498 kg)
Gross Vehicle Weight – Base – Total	33,064 lbs (14,998 kg)
Gross Vehicle Weight – Maximum – Front Axle	15,954 lbs (7,237 kg)
Gross Vehicle Weight – Maximum – Rear Axle	48,736 lbs (22,106 kg)
Gross Vehicle Weight – Maximum – Total	44,690 lbs (20,271 kg)