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.
- Technical Specs
- Standard Equipment
- Optional Equipment
- Base Power (1st gear) - Net
- 145.0 hp
- Engine Model
- Cat® C7.1 ACERT™
- Bore
- 4.13 in
- Stroke
- 5.31 in
- Speed @ Rated Power
- 2,100 rpm
- Base Power (1st gear) - Net (metric)
- 147.0 hp
- Base Power (all gears) - Net
- 145.0 hp
- Emissions
- Tier 4 Interim/Stage IIIB equivalent
- Hi Ambient - Fan Speed - Standard
- 1,000 rpm
- Maximum Torque
- 693.0 lbf-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
- 145.0 hp
- VHP Plus - gear 2F, Net
- 153.0 hp
- VHP Plus - gear 3F, Net
- 161.0 hp
- VHP Plus - gear 4F, Net
- 169.0 hp
- VHP Plus - gear 5F, Net
- 174.0 hp
- VHP Plus - gear 6F, Net
- 179.0 hp
- VHP Plus - gear 7F, Net
- 184.0 hp
- VHP Plus - gear 8F, Net
- 189.0 hp
- Displacement
- 428.0 in3
- Number of Cylinders
- 6
- Derating Altitude
- 10000.0 ft
- High Ambient - Fan Speed - Maximum
- 1,350 rpm
- High Ambient - Fan Speed - Minimum
- 500 rpm
- High Ambient Capability
- 122.0 ° F
- Forward/Reverse Gears
- 8 Forward/6 Reverse
- Transmission
- Direct Drive, Powershift
- Brakes - Service
- Multiple Oil Disc
- Brakes - Service, Surface Area
- 3565.0 in2
- Brakes - Parking
- Multiple Oil Disc
- Brakes - Secondary
- Dual Circuit
- Circuit Type
- Parallel
- Pump Type
- Variable Piston
- Pump Output
- 55.7 gal/min
- Maximum System Pressure
- 3500.0 psi
- Reservoir Tank Capacity
- 15.85 gal
- Standby Pressure
- 609.0 psi
- Top Speed - Forward
- 28.4 mph
- Top Speed - Reverse
- 22.4 mph
- Turning Radius, Outside Front Tires
- 24.3 ft
- Steering Range - Left/Right
- 47.5°
- Articulation Angle - Left/Right
- 20°
- Forward - 1st
- 2.5 mph
- Forward - 2nd
- 3.4 mph
- Forward - 3rd
- 4.9 mph
- Forward - 4th
- 6.7 mph
- Forward - 5th
- 10.4 mph
- Forward - 6th
- 14.2 mph
- Forward - 7th
- 19.5 mph
- Forward - 8th
- 28.4 mph
- Reverse - 1st
- 1.9 mph
- Reverse - 2nd
- 3.9 mph
- Reverse - 3rd
- 5.3 mph
- Reverse - 4th
- 8.2 mph
- Reverse - 5th
- 15.4 mph
- Reverse - 6th
- 22.4 mph
- Fuel Capacity
- 100.0 gal
- Cooling System
- 12.9 gal
- Hydraulic System - Tank
- 16.9 gal
- Engine Oil
- 7.9 gal
- Transmission/Differential/Final Drives
- 16.5 gal
- Tandem Housing (each)
- 15.6 gal
- Front Wheel Spindle Bearing Housing
- 0.13 gal
- Circle Drive Housing
- 1.8 gal
- Drawbar - Width
- 3.0 in
- Circle - Diameter
- 60.2 in
- Circle - Blade Beam Thickness
- 1.4 in
- Drawbar - Height
- 6.0 in
- Front Frame Structure - Height
- 11.0 in
- Front Frame Structure - Width
- 8.0 in
- Drawbar - Thickness
- 0.4 in
- Front-Top/Bottom Plate - Width
- 10.0 in
- Front-Top/Bottom Plate - Thickness
- 0.87 in
- Front Axle - Height to Center
- 22.5 in
- Front Axle - Wheel Lean, Left/Right
- 18°
- Front Axle - Total Oscillation per Side
- 32°
- Height
- 19.8 in
- Width
- 6.8 in
- Sidewall Thickness - Inner
- 0.5 in
- Sidewall Thickness - Outer
- 0.6 in
- Drive Chain Pitch
- 1.8 in
- Wheel Axle Spacing
- 59.5 in
- Tandem Oscillation - Front Up
- 15°
- Tandem Oscillation - Front Down
- 25°
- Blade Width
- 12.0 ft
- Moldboard - Height
- 24.0 in
- Moldboard - Thickness
- 0.87 in
- Arc Radius
- 16.3 in
- Throat Clearance
- 4.9 in
- Cutting Edge - Width
- 6.0 in
- Cutting Edge - Thickness
- 0.6 in
- End Bit - Width
- 6.0 in
- End Bit - Thickness
- 0.6 in
- Blade Pull - Base GVW
- 23737.0 lb
- Blade Pull - Maximum GVW
- 29980.0 lb
- Blade Down Pressure - Base GVW
- 15030.0 lb
- Blade Down Pressure - Maximum GVW
- 27235.0 lb
- Circle Centershift - Right
- 25.8 in
- Circle Centershift - Left
- 25.8 in
- Moldboard Sideshift - Right
- 26.0 in
- Moldboard Sideshift - Left
- 20.1 in
- Maximum Blade Position Angle
- 90°
- Blade Tip Range - Forward
- 40°
- Blade Tip Range - Backward
- 5°
- Maximum Lift above Ground
- 16.8 in
- Maximum Depth of Cut
- 28.3 in
- Maximum Shoulder Reach Outside of Tires - Right
- 75.0 in
- Maximum Shoulder Reach Outside of Tires - Left
- 68.6 in
- Ripper Shank Holder Spacing
- 21.0 in
- Ripping Depth - Maximum
- 8.9 in
- Ripper Shank Holders
- 5
- Penetration Force
- 17692.0 lb
- Pryout Force
- 5660.0 lb
- Machine Length Increase, Beam Raised
- 41.5 in
- Front, V-Type, 5 or 11 Tooth - Scarifier Shank Holder Spacing
- 4.6 in
- Front, V-Type, 5 or 11 Tooth - Scarifier Shank Holders
- 5/11
- Front, V-Type, 5 or 11 Tooth - Scarifying Depth, Maximum
- 18.4 in
- Front, V-Type, 5 or 11 Tooth - Working Width
- 40.6 in
- Front, V-Type: Working Width
- 47.4 in
- Mid, Straight - Ripping Depth, Maximum
- 12.5 in
- Mid, Straight - Scarifier Shank Holder Spacing
- 4.4 in
- Mid, Straight - Scarifier Shank Holders
- 17
- Mid, Straight - Scarifying Depth, Maximum
- 16.8 in
- Mid, Straight - Working Width
- 71.0 in
- Mid, V-Type - Scarifier Shank Holder Spacing
- 4.6 in
- Mid, V-Type - Scarifier Shank Holders
- 11
- Mid, V-Type - Scarifying Depth, Maximum
- 11.5 in
- Mid, V-Type - Working Width
- 46.6 in
- Operating Weight - Typically Equipped
- 39892.0 lb
- Gross Vehicle Weight - Maximum - Rear Axle
- 33312.0 lb
- Gross Vehicle Weight - Base - Front Axle
- 8651.0 lb
- Gross Vehicle Weight - Base - Rear Axle
- 26374.0 lb
- Gross Vehicle Weight - Maximum - Total
- 48987.0 lb
- Gross Vehicle Weight - Maximum - Front Axle
- 15675.0 lb
- Operating Weight, Typically Equipped - Front Axle
- 10563.0 lb
- Operating Weight, Typically Equipped - Rear Axle
- 29329.0 lb
- Gross Vehicle Weight - Base - Total
- 35025.0 lb
- Operating Weight, Typically Equipped - Total
- 39892.0 lb
- Brakes
- ISO 3450
- ROPS/FOPS
- ISO 3471/ISO 3449
- Sound
- ISO 6394; ISO 6395
- Steering
- ISO 5010
- Note
- U.S. EPA Tier 4 Interim/EU Stage IIIB equivalent
- 17.5 R25 Tire (14x25 Rim) Dimension Adjustments – Height to Dimensions 1, 2, 8, 9, 10
- -0.8 in
- 17.5 R25 Tire (14x25 Rim) Dimension Adjustments – Length Front Tire to Rear of Machine Dimension 6
- -0.6 in
- 17.5 R25 Tire (14x25 Rim) Dimension Adjustments – Width to Tire Centerline Dimension 11
- +4.1 in
- 17.5 R25 Tire (14x25 Rim) Dimension Adjustments – Width to Tire Front/Rear Tires Dimensions 12, 13
- +7.6 in
- Note
- Dimension changes may vary by brand/type and inflation of tires.
- 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.
-
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
-
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