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M 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.

120M AWD Motor Grader

The Cat® 120M AWD Motor Grader is designed to help you get more work done in less time. Unprecedented operator comfort and ease of service help to maximize your return on investment.

  • Specification Summary

  • Base Power (1st gear) – Net103 kW
  • Engine ModelCat C6.6 ACERT™
  • Bore105 mm
  • Stroke127 mm
  • Speed @ Rated Power2,000 rpm
  • Product Brochure

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Product Details

Engine

Base Power (1st gear) – Net 103 kW
Engine Model Cat C6.6 ACERT™
Bore 105 mm
Stroke 127 mm
Speed @ Rated Power 2,000 rpm
Base Power (1st gear) – Net (Metric) 103 kW
Base Power (1st gear, AWD off) – Net U.S. EPA Tier 3/EU Stage IIIA equivalent
Maximum Torque (AWD on) 963 N·m
Torque Rise (VHP Plus) 40%
VHP Plus Range – Net 103-136 kW (138-182 hp)
VHP Plus Range – Net (Metric) 103-136 kW (140-185 hp)
Displacement 6.6 L
Number of Cylinders 6
Derating Altitude 3505 m
High Ambient – Fan Speed – Maximum 1,650 rpm
High Ambient – Fan Speed – Minimum 600 rpm
High Ambient Capability 50 ° C

Weights

Operating Weight – Typically Equipped 18400 kg

Moldboard

Blade Width 3.7 m
Moldboard – Height 610 mm
Arc Radius 413 mm
Throat Clearance 134 mm
Moldboard – Width 3.7 m

Frame

Drawbar – Width 76.2 mm
Circle – Diameter 1530 mm
Drawbar – Height 152 mm
Front Frame Structure – Height 280 mm
Front Frame Structure – Width 255 mm
Front Axle – Wheel Lean, Left/Right 18°
Front Axle – Total Oscillation per Side 32°

Blade Range

Circle Centershift – Right 656 mm
Circle Centershift – Left 656 mm
Moldboard Sideshift – Right 660 mm
Moldboard Sideshift – Left 510 mm
Blade Tip Range – Forward 40°
Blade Tip Range – Backward
Maximum Shoulder Reach Outside of Tires – Right 1905 mm
Maximum Shoulder Reach Outside of Tires – Left 1742 mm
Maximum Lift above Ground 427 mm
Maximum Depth of Cut 720 mm

Weights – AWD

Gross Vehicle Weight – Base – Front Axle 16231 kg
Gross Vehicle Weight – Base – Rear Axle 4220 kg
Gross Vehicle Weight – Base – Total 12011 kg
Gross Vehicle Weight – Maximum – Front Axle 22045 kg
Gross Vehicle Weight – Maximum – Rear Axle 6839 kg
Gross Vehicle Weight – Maximum – Total 15206 kg
Gross Vehicle Weight – Typically Equipped – Front Axle 18400 kg
Gross Vehicle Weight – Typically Equipped – Rear Axle 5090 kg
Gross Vehicle Weight – Typically Equipped – Total 13310 kg

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