Caterpillar 12G Motor Grader

Circle

Blade Tip Angle – Front 90 degrees
Blade Tip Angle – Rear 90 degrees
Diameter 60 in (153 cm)
Max Lift Above Ground 17 in (44 cm)
Max Reach Outside Tires – Left 72 in (183 cm)
Max Reach Outside Tires – Right 74 in (187 cm)
Rotation 360 degrees

Dimensions

Blade Base 9 ft (3 m)
Height to Top of Isomount Cab 11 ft (3 m)
Overall Length 27 ft (8 m)
Tandem Axle Wheelbase 5 ft (2 m)
Wheelbase 20 ft (6 m)
Width Over Tires 8 ft (2 m)

Engine

Displacement 641 cu in (10,501 cu cm)
Max Power 135 hp (101 kw)
Net Power Gear 5-6 135 hp (101 kw)
Number of Cylinders 6
Power Measured @ 2200 rpm

Front Axle

Ground Clearance 2 ft (1 m)
Oscillation – Total 32 degrees
Wheel Lean 18 degrees

Hydraulic System

Pump Flow 51 gpm (193 lpm)
Pump Type closed-center, constant-pressure system w/ variable displacement piston
Relief Valve Pressure 2150 psi

Moldboard

Max Depth of Cut 18 in (45 cm)
Moldboard Height 24 in (61 cm)
Moldboard Thickness 1 in (2 cm)
Moldboard Width 12 ft (4 m)
Side Shift Left 26 in (67 cm)
Side Shift Right 21 in (52 cm)

Operating Specifications

Alternator Supplied Amperage 19 amps
Cooling System Fluid Capacity 13 gal (47 l)
Fuel Capacity 75 gal (283 l)
Hydraulic System Fluid Capacity 20 gal (76 l)
Max Operation Weight – Front Axle 9,987 lbs (4,530 kg)
Max Operation Weight – Rear Axle 21,605 lbs (9,800 kg)
Max Operation Weight – Total 31,592 lbs (14,330 kg)
Oil System Fluid Capacity 8 gal (29 l)
Operating Voltage 24 volts
Std Operation Weight – Front Axle 7,871 lbs (3,570 kg)
Std Operation Weight – Rear Axle 20,128 lbs (9,130 kg)
Std Operation Weight – Total 27,999 lbs (12,700 kg)
Tandem Case Fluid Capacity (each) 17 gal (64 l)
Transmission Fluid Capacity 23 gal (87 l)

Steering System

Articulation Angle 50 degrees
Turning Radius 24 ft (7 m)

Transmission

Max Speed – Forward 26 mph (41 kph)
Max Speed – Reverse 26 mph (41 kph)
Number of Gears – Forward 6
Number of Gears – Reverse 6
Transmission Type Cat-built direct drive power shift
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