120M2 Motor Grader

120M2 Motor Grader

120M2 Motor Grader

The M Series 2 continues the legacy of quality already established by Cat Motor Graders. The extensive validation program, combined with improvements to the manufacturing process, allows Caterpillar to further enhance our quality. The end result of this development process is a motor grader line with breakthrough technologies, tested in the field and built around real applications and real customer needs. M Series 2 Motor Graders meet Tier 4 Interim/Stage IIIB equivalent emission standards.

Benefits & Features

Product Specs

Engine

Base Power (1st gear) - Net
145.0hp
Engine Model
Cat® C7.1 ACERT™
Bore
4.13in
Stroke
5.31in
Speed @ Rated Power
2,100 rpm
Base Power (1st gear) - Net (metric)
147.0hp
Base Power (all gears) - Net
145.0hp
Emissions
Tier 4 Interim/Stage IIIB equivalent
Hi Ambient - Fan Speed - Standard
1,000 rpm
Maximum Torque
693.0lbf-ft
Standard Capability
109.0° F
Torque Rise
45%
VHP Plus Range - Net
108-141 kW (145-189 hp)
VHP Plus Range - Net (metric)
108-141 kW (147-192 hp)
VHP Plus - gear 1F, Net
145.0hp
VHP Plus - gear 2F, Net
153.0hp
VHP Plus - gear 3F, Net
161.0hp
VHP Plus - gear 4F, Net
169.0hp
VHP Plus - gear 5F, Net
174.0hp
VHP Plus - gear 6F, Net
179.0hp
VHP Plus - gear 7F, Net
184.0hp
VHP Plus - gear 8F, Net
189.0hp
Displacement
428.0in3
Number of Cylinders
6
Derating Altitude
10000.0ft
High Ambient - Fan Speed - Maximum
1,350 rpm
High Ambient - Fan Speed - Minimum
500 rpm
High Ambient Capability
122.0° F

Weights

Operating Weight - Typically Equipped
39892.0lb
Gross Vehicle Weight - Maximum - Front Axle
15675.0lb
Gross Vehicle Weight - Maximum - Rear Axle
33312.0lb
Operating Weight, Typically Equipped - Front Axle
10563.0lb
Operating Weight, Typically Equipped - Rear Axle
29329.0lb
Gross Vehicle Weight - Base - Front Axle
8651.0lb
Gross Vehicle Weight - Base - Rear Axle
26374.0lb
Gross Vehicle Weight - Maximum - Total
48987.0lb
Gross Vehicle Weight - Base - Total
35025.0lb
Operating Weight, Typically Equipped - Total
39892.0lb

Moldboard

Blade Width
12.0ft
Moldboard - Height
24.0in
Moldboard - Thickness
0.87in
Arc Radius
16.3in
Throat Clearance
4.9in
Cutting Edge - Width
6.0in
Cutting Edge - Thickness
0.6in
End Bit - Width
6.0in
End Bit - Thickness
0.6in
Blade Pull - Base GVW
23737.0lb
Blade Pull - Maximum GVW
29980.0lb
Blade Down Pressure - Base GVW
15030.0lb
Blade Down Pressure - Maximum GVW
27235.0lb

Operating Specifications

Top Speed - Forward
28.4mph
Top Speed - Reverse
22.4mph
Turning Radius, Outside Front Tires
24.3ft
Steering Range - Left/Right
47.5°
Articulation Angle - Left/Right
20°
Forward - 1st
2.5mph
Forward - 2nd
3.4mph
Forward - 3rd
4.9mph
Forward - 4th
6.7mph
Forward - 5th
10.4mph
Forward - 6th
14.2mph
Forward - 7th
19.5mph
Forward - 8th
28.4mph
Reverse - 1st
1.9mph
Reverse - 2nd
3.9mph
Reverse - 3rd
5.3mph
Reverse - 4th
8.2mph
Reverse - 5th
15.4mph
Reverse - 6th
22.4mph

Service Refill

Fuel Capacity
100.0gal
Cooling System
12.9gal
Hydraulic System - Tank
16.9gal
Engine Oil
7.9gal
Transmission/Differential/Final Drives
16.5gal
Tandem Housing (each)
15.6gal
Front Wheel Spindle Bearing Housing
0.13gal
Circle Drive Housing
1.8gal

Power Train

Forward/Reverse Gears
8 Forward/6 Reverse
Transmission
Direct Drive, Powershift
Brakes - Service
Multiple Oil Disc
Brakes - Service, Surface Area
3565.0in2
Brakes - Parking
Multiple Oil Disc
Brakes - Secondary
Dual Circuit

Hydraulic System

Circuit Type
Parallel
Pump Type
Variable Piston
Pump Output
55.7gal/min
Maximum System Pressure
3500.0psi
Reservoir Tank Capacity
15.85gal
Standby Pressure
609.0psi

Frame

Drawbar - Width
3.0in
Circle - Diameter
60.2in
Circle - Blade Beam Thickness
1.4in
Drawbar - Height
6.0in
Front Frame Structure - Height
11.0in
Front Frame Structure - Width
8.0in
Drawbar - Thickness
0.4in
Front-Top/Bottom Plate - Width
10.0in
Front-Top/Bottom Plate - Thickness
0.87in
Front Axle - Height to Center
22.5in
Front Axle - Wheel Lean, Left/Right
18°
Front Axle - Total Oscillation per Side
32°

Blade Range

Circle Centershift - Right
25.8in
Circle Centershift - Left
25.8in
Moldboard Sideshift - Right
26.0in
Moldboard Sideshift - Left
20.1in
Maximum Blade Position Angle
90°
Blade Tip Range - Forward
40°
Blade Tip Range - Backward
Maximum Shoulder Reach Outside of Tires - Right
75.0in
Maximum Shoulder Reach Outside of Tires - Left
68.6in
Maximum Lift above Ground
16.8in
Maximum Depth of Cut
28.3in

Standards

Brakes
ISO 3450
ROPS/FOPS
ISO 3471/ISO 3449
Sound
ISO 6394; ISO 6395
Steering
ISO 5010

Scarifier

Front, V-Type, 5 or 11 Tooth - Scarifier Shank Holder Spacing
4.6in
Front, V-Type, 5 or 11 Tooth - Scarifier Shank Holders
5/11
Front, V-Type, 5 or 11 Tooth - Scarifying Depth, Maximum
18.4in
Front, V-Type, 5 or 11 Tooth - Working Width
40.6in
Front, V-Type: Working Width
47.4in
Mid, Straight - Ripping Depth, Maximum
12.5in
Mid, Straight - Scarifier Shank Holder Spacing
4.4in
Mid, Straight - Scarifier Shank Holders
17
Mid, Straight - Scarifying Depth, Maximum
16.8in
Mid, Straight - Working Width
71.0in
Mid, V-Type - Scarifier Shank Holder Spacing
4.6in
Mid, V-Type - Scarifier Shank Holders
11
Mid, V-Type - Scarifying Depth, Maximum
11.5in
Mid, V-Type - Working Width
46.6in

Ripper

Ripper Shank Holder Spacing
21.0in
Ripping Depth - Maximum
8.9in
Ripper Shank Holders
5
Penetration Force
17692.0lb
Pryout Force
5660.0lb
Machine Length Increase, Beam Raised
41.5in

Tandems

Height
19.8in
Width
6.8in
Sidewall Thickness - Inner
0.5in
Sidewall Thickness - Outer
0.6in
Drive Chain Pitch
1.8in
Wheel Axle Spacing
59.5in
Tandem Oscillation - Front Up
15°
Tandem Oscillation - Front Down
25°

Emissions

Note
U.S. EPA Tier 4 Interim/EU Stage IIIB equivalent

Tires

17.5 R25 Tire (14x25 Rim) Dimension Adjustments – Height to Dimensions 1, 2, 8, 9, 10
-0.8in
17.5 R25 Tire (14x25 Rim) Dimension Adjustments – Length Front Tire to Rear of Machine Dimension 6
-0.6in
17.5 R25 Tire (14x25 Rim) Dimension Adjustments – Width to Tire Centerline Dimension 11
+4.1in
17.5 R25 Tire (14x25 Rim) Dimension Adjustments – Width to Tire Front/Rear Tires Dimensions 12, 13
+7.6in
Note
Dimension changes may vary by brand/type and inflation of tires.

Air Conditioning System

Air Conditioning
The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 1.6 kg of refrigerant which has a CO2 equivalent of 2.88 metric tonnes.

Equipment

  • Power Train
    • Air cleaner, dual stage, dry type, diesel, with automatic engine derate and automatic dust ejector, service indicator through Cat Messenger
    • Air-to-air after cooler (ATAAC)
    • Belt, serpentine, automatic tensioner
    • Brakes, oil disc, four-wheel, hydraulic
    • Demand fan, hydraulic, swing-out
    • Differential lock/unlock, automatic
    • Drain, engine oil, ecology
    • Electronic over speed protection
    • Engine, C7.1 with ACERT Technology, Tier 4 Interim and Stage IIIB equivalent emission standards
    • Fuel tank, 378 L (100 gal), ground level access and sediment drain
    • Parking brake – multi-disc, sealed, oil-cooled
    • Priming pump, fuel
    • Rear axle, modular
    • Sediment drain, fuel tank
    • Tandem drive
    • Transmission, 8F/6R, power shift, direct drive
    • VHP Plus (Variable Horsepower)
  • Electrical
    • Alarm, back up
    • Alternator, 150 ampere, sealed
    • Batteries, maintenance free, heavy duty, 1,125 CCA
    • Breaker panel, ground accessible
    • Cab harness and electrical hydraulic valves
    • Electrical system, 24V
    • Grade Control Ready – Cab harness, software, electrical hydraulic valves, bosses and brackets
    • Lights, roof-mounted roading, reversing, LED stop and tail
    • Product Link Ready
    • Starter, electric
  • Operator Environment
    • Accelerator
    • Air conditioning with heater
    • Arm and wrist rest, electronically adjustable
    • Articulation, automatic Return-to-Center
    • Ashtray and lighter
    • Cat® Messenger operator information system
    • Centershift pin indicator
    • Coat hook
    • Cup holder
    • Display, digital speed and gear
    • Doors, left and right side with wiper
    • Gauge, machine level
    • Gauge cluster (analog) – fuel, articulation, engine coolant temp, engine RPM, hydraulic oil temp, regen
    • Hour meter, digital
    • Joystick hydraulic controls right/left blade lift with float position, circle drive, blade sideshift and tip, centershift, front wheel lean, articulation and power steering
    • Joystick, adjustable armrests
    • Joystick gear selection
    • Joystick hydraulic power steering
    • Ladders, cab, left and right side
    • Lights, night time cab
    • Mirror, inside rearview, wide angle
    • Power port, 12V
    • Radio Ready, Entertainment
    • ROPS cab, sound suppressed 70 dB(A)
    • Seat, cloth-covered, comfort suspension
    • Seat belt, retractable 76 mm (3 in)
    • Storage area for cooler/lunchbox
    • Throttle control, electronic
    • Windows, laminated glass: – fixed front with intermittent wiper – side and rear (3)
  • Fluids
    • Antifreeze
    • Extended Life Coolant to –35° C (–30° F)
  • Tires, Rims And Wheels
    • Partial allowance for tires on 254 × 607 mm (10 × 24 in) multi-piece rims is included in the base machine price and weight
  • Other Standard Equipment
    • Accumulators, brake, dual certified
    • Anti-glare paint
    • Bumper, rear, integrated with hitch
    • CD ROM Parts Book
    • Clutch, circle drive slip
    • Cutting edges: – 152 × 16 mm (6 × 5/8 in) – curved DH-2 steel – 19 mm (3/4 in) mounting bolts
    • Doors (3), engine compartment, locking
    • Drawbar – 6 shoes, replaceable wear strips
    • Electrical hydraulic valves, hydraulic lines for base 8 functions
    • Endbits: – 16 mm (5/8 in) DH-2 steel – 19 mm (3/4 in) mounting bolts
    • Fluid check, ground level
    • Frame, articulated, with safety lock
    • Ground level engine shutdown
    • Hammer (emergency exit)
    • Horn, electric
    • Hydraulic lines for base functions
    • Lockout, hydraulic implement (for roading and servicing)
    • Moldboard – 3658 × 610 × 22 mm (12 ft × 24 in × 7/8 in)
    • Mounting, cab roof accessories
    • Pump, hydraulic, high capacity, 98 cm³ (6 in³)
    • Radiator, cleanout access (both sides with swing doors)
    • Secondary steering
    • Serviceability, LH side
    • SOSSM ports: engine, hydraulic, transmission, coolant, fuel
    • Tandem walkway/guards
    • Tool box
    • Tow hitch

Optional Equipment

  • Electrical
    • Alternator, 280 ampere
    • Batteries: extreme duty, 1,400 CCA
    • Converter, communication (CB)
    • Lights: Headlights, high
    • Lights: Headlights, low
    • Lights: Working lights, basic
    • Lights: Working lights, plus
    • Lights: Warning: beacon or strobe
    • Lights: Mounting for warning light
  • Guards
    • Fenders, front
    • Fenders, rear
    • Sound suppression (bottom)
    • Sound suppression (enclosure)
    • Transmission
  • Operator Environment
    • Fan, defroster, rear window
    • Mirrors, outside: heated 24V
    • Mirrors, outside: mounted
    • Precleaner, HVAC
    • Radio ready, AM/FM
    • Seat, air suspension, cloth
    • Shade, sun
    • Wiper/washer, rear
  • Power Train
    • Fuel tank, fast fill
    • Oil, hydraulic, biodegradable synthetic
    • Precleaner, snow
    • Starter, heavy duty, 1,000 Amp
    • Transmission, autoshift
  • Other Attachments
    • AccuGrade ARO
    • Accumulators, blade lift
    • Camera, rearview
    • Cat Product Link 321SR
    • Drain, ecology, engine Wiggins
    • Fenders, rear
    • Heater, engine coolant: 120V
    • Heater, engine coolant: 240V
    • Hydraulic arrangements with one or more additional hydraulic valves are available for rear ripper, dozer, snow plow and snow wing.
    • Snow wing mounting, frame ready
    • Sound suppression
    • Starting aid, ether
  • Work Tools/g.e.t.
    • Blade extension, left hand, 610 mm (2 ft)
    • Cutting edges, curved
    • Endbits, overlay
    • Front lift group, mounting
    • Front lift group, mechanical
    • Grader bit, narrow and super penetration
    • Mid-Mount Scarifier, Package
    • Mid-Mount Scarifier, Mounting
    • Moldboard: 4267 mm × 610 mm × 22 mm (14 ft × 24 in × 7/8 in)
    • Moldboard: 4267 mm × 686 mm × 25 mm (14 ft × 27 in × 1 in)
    • Push plate, counterweight
    • Ripper, mounting
    • Ripper, rear
    • Ripper tooth
    • Scarifier, front
    • Snow Arrangement
    • Snow Wing Ready Package
  • Machine Arrangements
    • Canadian Arrangement
    • European Arrangement
    • European Roading Arrangement

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