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K Series Motor Graders

Cat motor graders continue their reputation for offering world-class cab and controls, advanced electronics and hydraulics, and optimum productivity... to match your needs in any application.

12K Motor Grader

The Cat® 12K Motor Grader is the machine you can count on when you need to get work done. Cat motor graders help you make the most of your investment by delivering maximum productivity and durability. The Cat C7 ACERT™ engine, direct-drive power shift transmission and load sensing hydraulics work together ensuring you have the power and precision you need when you need it.

  • Specification Summary

  • Base Power (1st Gear) - Net 108 kW
  • Engine Model Cat C7
  • Displacement 7.2 l
  • Bore 105 mm
  • Product Brochure

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Product Details

Engine

Base Power (1st Gear) - Net 108 kW
Engine Model Cat C7
Displacement 7.2 l
Bore 105 mm
Stroke 127 mm
High - Ambient Capability 50 °C
Torque Rise 50%
Base Power - Net 108 kW
Maximum Torque 881 N·m
Speed at Rated Power 2000 r/min
Derating Altitude 3048 m
Number of Cylinders 6
Note (2) Net power advertised is the power available at rated speed of 2,000 rpm, measured at the flywheel when engine is equipped with fan, air cleaner, muffler and alternator.
High Ambient - Fan Speed - Maximum 1575 r/min
Note (1) Net power is tested per ISO 9249, SAE J1349, and EEC 80/1269 standards in effect at the time of manufacture.
Note (3) Maximum torque measured at 1,000 rpm in gears 4-8.
VHP Range - Net 108-123 kW (145-165 hp)

Moldboard

Blade Width 3.7 m
Arc Radius 413 mm
Throat Clearance 120 mm
Moldboard - Thickness 22 mm
Cutting Edge Width 152 mm
End Bit - Thickness 16 mm
Cutting Edge Thickness 16 mm
Moldboard - Height 610 mm
End Bit - Width 152 mm

Blade Range

Moldboard Sideshift - Left 512 mm
Circle Centershift - Right 728 mm
Moldboard Sideshift - Right 663 mm
Maximum Shoulder Reach Outside of Tires - Left 1859 mm
Maximum Lift Above Ground 480 mm
Circle Centershift - Left 752 mm
Maximum Shoulder Reach Outside of Tires - Right 1809 mm
Maximum Depth of Cut 735 mm
Blade Tip Range - Backward
Blade Tip Range - Forward 40°

Frame

Circle - Outer Diameter 1530 mm
Front Axle - Wheel Lean - Left/Right 18°
Front Axle - Total Oscillation per Side 32°

Weights

Gross Vehicle Weight - Typically Equipped 16791 kg
Gross Vehicle Weight - Base - Front Axle 3820 kg
Gross Vehicle Weight - Typically Equipped - Front Axle 4497 kg
Operating Weight - Maximum - Front Axle 8005 kg
Operating Weight - Maximum - Rear Axle 14865 kg
Gross Vehicle Weight - Base - Rear Axle 10450 kg
Operating Weight - Maximum - Total 22870 kg
Gross Vehicle Weight - Typically Equipped - Total 16791 kg
Gross Vehicle Weight - Base - Total 14270 kg
Gross Vehicle Weight - Typically Equipped - Rear Axle 12294 kg
Note (1) Base weight calculated on standard machine configuration with 14.00-24 12PR (G-2) tires, SP Rims, full fuel tank, coolant, lubricants and 90 kg (198 lb) operator.
Note (2) Typical operating weight calculated on standard machine configuration with HVAC ROPS Cab, 14.00-24 12PR (G-2) tires, MP rims, ripper, push plate, transmission guard, full fuel tank, coolant, lubricants and 90 kg (198 lb) operator.

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