Caterpillar 12H Motor Grader

Circle

Blade Tip Angle – Front 40 degrees
Blade Tip Angle – Rear 5 degrees
Diameter 60 in (153 cm)
Max Lift Above Ground 19 in (48 cm)
Max Reach Outside Tires – Left 74 in (187 cm)
Max Reach Outside Tires – Right 71 in (181 cm)
Rotation 360 degrees
Shift Left 27 in (70 cm)
Shift Right 29 in (73 cm)

Dimensions

Blade Base 9 ft (3 m)
Front Ground Clearance 2 ft (1 m)
Height to Top of Isomount Cab 10 ft (3 m)
Overall Length 28 ft (9 m)
Rear Ground Clearance 1 ft (0 m)
Tandem Axle Wheelbase 5 ft (2 m)
Wheelbase 20 ft (6 m)
Width Over Tires 8 ft (2 m)

Engine

Displacement 638 cu in (10,450 cu cm)
Net Power Gear 1-2 145 hp (108 kw)
Net Power Gear 4-6 165 hp (123 kw)
Net Power Gear 5-6 165 hp (123 kw)
Number of Cylinders 6
Power Measured @ 2000 rpm

Front Axle

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

Hydraulic System

Relief Valve Pressure 3500 psi

Moldboard

Blade Down Pressure 23,808 lbs (10,799 kg)
Blade Pull at Max Weight 28,867 lbs (13,094 kg)
Max Depth of Cut 29 in (73 cm)
Moldboard Height 24 in (61 cm)
Moldboard Thickness 1 in (2 cm)
Moldboard Width 12 ft (4 m)
Side Shift Left 21 in (52 cm)
Side Shift Right 26 in (66 cm)

Operating Specifications

Circle Gearbox Fluid Capacity 2 gal (7 l)
Cooling System Fluid Capacity 12 gal (44 l)
Max Operation Weight – Front Axle 13,744 lbs (6,234 kg)
Max Operation Weight – Rear Axle 32,074 lbs (14,549 kg)
Max Operation Weight – Total 45,818 lbs (20,783 kg)
Oil System Fluid Capacity 7 gal (27 l)
Operating Voltage 24 volts
Rear Diff/Final Drive Fluid Capacity 12 gal (46 l)
Std Operation Weight – Front Axle 8,346 lbs (3,786 kg)
Std Operation Weight – Rear Axle 22,974 lbs (10,421 kg)
Tandem Case Fluid Capacity (each) 17 gal (64 l)

Steering System

Turning Radius 24 ft (7 m)

Transmission

Number of Gears – Forward 8
Number of Gears – Reverse 6
Transmission Type direct drive power shift
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