The Caterpillar 120M Motor Grader is a versatile and powerful machine designed for efficiently leveling and grading construction sites, roads, and other surfaces. With a range of advanced features and capabilities, the 120M boasts a robust engine with a net power of 138 horsepower, ensuring high performance in various operating conditions. Equipped with an electro-hydraulic load sensing hydraulic system and a direct drive, power shift, countershaft transmission, this motor grader offers precise control and smooth operation. Its sturdy build and ergonomic design make it suitable for a wide range of grading applications, providing superior productivity and performance on the job site. Explore the detailed specifications of the Caterpillar 120M Motor Grader below to learn more about its capabilities and features.
| Blade Tip Range - Backward | 5 degrees
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| Blade Tip Range - Forward | 40 degrees
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| Circle Centershift - Left | 25.80 in (65.53 cm)
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| Circle Centershift - Right | 25.80 in (65.53 cm)
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| Maximum Blade Position Angle | 90 degrees
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| Maximum Depth of Cut | 28.30 in (71.88 cm)
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| Maximum Lift Above Ground | 16.80 in (42.67 cm)
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| Maximum Shoulder Reach Outside of Tires - Left | 68.60 in (174.24 cm)
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| Maximum Shoulder Reach Outside of Tires - Right | 75.00 in (190.50 cm)
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| Moldboard Sideshift - Left | 20.10 in (51.05 cm)
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| Moldboard Sideshift - Right | 26.00 in (66.04 cm)
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| Blade Base | 8.30 ft (2.53 m)
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| Front Ground Clearance | 1.90 ft (0.58 m)
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| Ground Clearance - Rear Axle | 13.60 in (34.54 cm)
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| Height - Exhaust Stack | 112.40 in (285.50 cm)
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| Height - Front Axle Center | 22.50 in (57.15 cm)
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| Height - Top of Cab | 10.80 ft (3.29 m)
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| Height - Top of Cylinders | 113.70 in (288.80 cm)
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| Height to Top of Isomount Cab | 10.80 ft (3.29 m)
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| Length - Between Tandem Axles | 59.50 in (151.13 cm)
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| Length - Counterweight to Ripper | 389.30 in (988.82 cm)
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| Length - Front Axle to Mid Tandem | 232.80 in (591.31 cm)
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| Length - Front Axle to Moldboard | 98.90 in (251.21 cm)
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| Length - Front Tire to Rear of Machine | 334.10 in (848.61 cm)
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| Overall Length | 27.90 ft (8.50 m)
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| Rear Ground Clearance | 1.20 ft (0.37 m)
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| Tandem Axle Wheelbase | 5.00 ft (1.52 m)
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| Wheelbase | 19.40 ft (5.91 m)
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| Width - Outside Front Tires | 97.70 in (248.16 cm)
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| Width - Outside Rear Tires | 97.70 in (248.16 cm)
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| Width - Tire Center Lines | 84.10 in (213.61 cm)
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| Width Over Tires | 8.20 ft (2.50 m)
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| Base Power (1st Gear) - Net | 138.00 hp (102.91 kw)
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| Base Power (1st Gear) - Net - Metric | 140.00 hp (104.40 kw)
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| Base Power (All Gears) - Net | 138.00 hp (102.91 kw)
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| Bore | 4.20 in (10.67 cm)
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| Derating Altitude | 11,500.00 ft (3,505.20 m)
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| Displacement | 403.00 cu in (6,604.00 cu cm)
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| Emissions | U.S. EPA Tier 3/EU Stage IIIA equivalent
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| Engine Model | Cat C6.6 ACERT
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| High - Ambient Capability | 122 degrees
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| High Ambient - Fan Speed - Maximum | 1650 rpm
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| High Ambient - Fan Speed - Minimum | 600 rpm
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| Max Power | 138.00 hp (102.91 kw)
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| Maximum Torque | 690.00 lbs ft (935.50 nm)
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| Net Power Gears 7-8 | 138.00 hp (102.91 kw)
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| Number of Cylinders | 6
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| Power Measured @ | 2000 rpm
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| Speed at Rated Power | 2000 rpm
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| Standard - Ambient Capability | 109 degrees
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| Standard - Fan Speed - Maximum | 1150 rpm
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| Standard - Fan Speed - Minimum | 600 rpm
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| Stroke | 5.00 in (12.70 cm)
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| Torque Rise - V Plus | 40%
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| V Plus Range - Net | 103-136 kW (138-182)
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| V Plus Range - Net - Metric | 103-136 kW (140-185)
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| V Range - Net | 103-114 kW (138-153)
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| Arc Radius | 16.30 in (41.40 cm)
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| Blade Down Pressure | 28,887.20 lbs (13,103.03 kg)
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| Blade Down Pressure - Base GVW | 16,435.00 lbs (7,454.80 kg)
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| Blade Down Pressure - Maximum GVW | 29,125.00 lbs (13,210.89 kg)
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| Blade Pull - Base GVW | 20,350.00 lbs (9,230.62 kg)
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| Blade Pull - Maximum GVW | 24,218.00 lbs (10,985.11 kg)
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| Blade Pull at Max Weight | 40,221.00 lbs (18,243.96 kg)
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| Blade Width | 12.00 ft (3.66 m)
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| Cutting Edge Thickness | 0.60 in (1.52 cm)
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| Cutting Edge Width | 6.00 in (15.24 cm)
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| End Bit - Thickness | 0.60 in (1.52 cm)
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| End Bit - Width | 6.00 in (15.24 cm)
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| Max Depth of Cut | 28.30 in (71.88 cm)
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| Moldboard - Height | 24.00 in (60.96 cm)
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| Moldboard - Thickness | 0.90 in (2.29 cm)
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| Moldboard - Width | 12.00 ft (3.66 m)
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| Moldboard Height | 24.00 in (60.96 cm)
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| Moldboard Length | 12.00 ft (3.66 m)
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| Moldboard Thickness | 0.90 in (2.29 cm)
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| Moldboard Width | 12.00 ft (3.66 m)
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| Side Shift Left | 20.10 in (51.05 cm)
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| Side Shift Right | 26.00 in (66.04 cm)
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| Throat Clearance | 5.20 in (13.21 cm)
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| Articulation Angle - Left/Right | 20 degrees
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| Circle Gearbox Fluid Capacity | 1.80 gal (6.81 l)
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| Cooling System Fluid Capacity | 10.40 gal (39.36 l)
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| Forward - 1st | 2.40 mph (3.86 kph)
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| Forward - 2nd | 3.30 mph (5.31 kph)
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| Forward - 3rd | 4.80 mph (7.72 kph)
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| Forward - 4th | 6.50 mph (10.46 kph)
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| Forward - 5th | 10.20 mph (16.42 kph)
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| Forward - 6th | 13.80 mph (22.21 kph)
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| Forward - 7th | 19.00 mph (30.58 kph)
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| Forward - 8th | 27.70 mph (44.58 kph)
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| Fuel Capacity | 90.00 gal (340.65 l)
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| Hydraulic System Fluid Capacity | 15.90 gal (60.18 l)
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| Max Operation Weight - Front Axle | 16,312.00 lbs (7,399.01 kg)
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| Max Operation Weight - Rear Axle | 28,378.00 lbs (12,872.06 kg)
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| Max Operation Weight - Total | 44,690.00 lbs (20,271.07 kg)
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| Operating Weight | 31,069.00 lbs (14,092.68 kg)
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| Rear Diff/Final Drive Fluid Capacity | 13.20 gal (49.96 l)
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| Reverse - 1st | 2
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| Reverse - 2nd | 3.80 mph (6.12 kph)
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| Reverse - 3rd | 5.60 mph (9.01 kph)
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| Reverse - 4th | 8.60 mph (13.84 kph)
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| Reverse - 5th | 16.10 mph (25.91 kph)
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| Reverse - 6th | 23.50 mph (37.82 kph)
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| Std Operation Weight - Front Axle | 8,233.00 lbs (3,734.43 kg)
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| Std Operation Weight - Rear Axle | 22,836.00 lbs (10,358.25 kg)
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| Std Operation Weight - Total | 31,069.00 lbs (14,092.68 kg)
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| Steering Range - Left/Right | 47.5 degrees
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| Tandem Case Fluid Capacity (each) | 16.90 gal (63.97 l)
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| Top Speed - Forward | 27.70 mph (44.58 kph)
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| Top Speed - Reverse | 23.50 mph (37.82 kph)
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| Turning Radius - Outside Front Tires | 24.50 ft (7.47 m)
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| Front, V-Type, 5 or 11 Tooth - Scarifier Shank Holder Spacing | 4.60 in (11.68 cm)
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| Front, V-Type, 5 or 11 Tooth - Scarifying Depth, Maximum | 18.40 in (46.74 cm)
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| Front, V-Type, 5 or 11 Tooth - Working Width | 47.40 in (120.40 cm)
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| Mid, Straight - Scarifier Shank Holder Spacing | 4.40 in (11.18 cm)
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| Mid, Straight - Scarifier Shank Holders | 17
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| Mid, Straight - Scarifying Depth, Maximum | 12.50 in (31.75 cm)
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| Mid, Straight - Working Width | 71.00 in (180.34 cm)
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| Mid, V-Type - Scarifier Shank Holder Spacing | 4.60 in (11.68 cm)
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| Mid, V-Type - Scarifier Shank Holders | 11
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| Mid, V-Type - Scarifying Depth, Maximum | 11.50 in (29.21 cm)
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| Mid, V-Type - Working Width | 46.60 in (118.36 cm)
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| Rear - Scarifier Shank Holder Spacing | 10.50 in (26.67 cm)
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| Rear - Scarifier Shank Holders | 9
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| Rear - Scarifying Depth, Maximum | 10.50 in (26.67 cm)
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| Rear - Working Width | 91.00 in (231.14 cm)
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| Gross Vehicle Weight - Base - Front Axle | 9,303.00 lbs (4,219.78 kg)
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| Gross Vehicle Weight - Base - Rear Axle | 26,479.00 lbs (12,010.69 kg)
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| Gross Vehicle Weight - Base - Total | 35,783.00 lbs (16,230.92 kg)
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| Gross Vehicle Weight - Maximum - Front Axle | 15,077.00 lbs (6,838.82 kg)
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| Gross Vehicle Weight - Maximum - Rear Axle | 33,523.00 lbs (15,205.80 kg)
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| Gross Vehicle Weight - Maximum - Total | 48,601.00 lbs (22,045.07 kg)
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| Gross Vehicle Weight - Typically Equipped - Front Axle | 11,221.00 lbs (5,089.77 kg)
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| Gross Vehicle Weight - Typically Equipped - Total | 40,565.00 lbs (18,400.00 kg)
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| Operating Weight - Typically Equipped | 40,565.00 lbs (18,400.00 kg)
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