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Caterpillar 120K2 K Series 2 Motor Graders

Caterpillar-120K2
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Cat K Series™ 2 Motor Graders are the machines 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 engine, direct-drive power shift transmission and load sensing hydraulics work together to ensure the power and precision you need to work in demanding conditions. And Cat motor graders are backed by the world-class Cat dealer network to keep you up and running.

Specifications of Caterpillar 120K2 K Series 2 Motor Graders

Caterpillar 120K2 K Series 2 Motor Graders Specifications

Engine

  • Base Power (1st gear) – Net 108.0 kW
  • Derating Altitude 2286.0 m
  • Displacement 7.2 L
  • Engine Model Cat® C7 ACERT™
  • Fan Speed Maximum 1,575 rpm
  • Gross Power – ISO 14396 116.0 kW
  • High Ambient Capability 50.0 ° C
  • Maximum Torque Net 774.0 N·m
  • Number of Cylinders 6
  • Power – All Gears: 1-8 Gross 118.0 kW
  • Power – All Gears: 1-8 Gross (metric) 118.0 kW
  • Power – All Gears: 1-8 Net 108.0 kW
  • Power – All Gears: 1-8 Net (metric) 108.0 kW
  • Speed @ rated power 2,000 rpm
  • Stroke 127.0 mm
  • Torque Rise 50%

Weights

  • Gross Vehicle Weight – Maximum 17000.0 kg
  • Gross Vehicle Weight – Typically Equipped 13843.0 kg
  • Gross Vehicle Weight, Base – front axle 3120.0 kg
  • Gross Vehicle Weight, Base – rear axle 9013.0 kg
  • Gross Vehicle Weight, Base – total 12133.0 kg
  • Gross Vehicle Weight, Maximum – front axle 5197.0 kg
  • Gross Vehicle Weight, Maximum – rear axle 11803.0 kg
  • Gross Vehicle Weight, Maximum – total 17000.0 kg
  • Gross Vehicle Weight, Typically Equipped – front axle 3970.0 kg
  • Gross Vehicle Weight, Typically Equipped – rear axle 9873.0 kg
  • Gross Vehicle Weight, Typically Equipped – total 13843.0 kg

Transmission

  • Articulation Angle – left/right 20 Degrees
  • Forward 1 4.1 km/h
  • Forward 2 5.5 km/h
  • Forward 3 8.0 km/h
  • Forward 4 11.1 km/ h
  • Forward 5 17.5 km/h
  • Forward 6 23.7 km/h
  • Forward 7 32.7 km/h
  • Forward 8 47.5 km/h
  • Reverse 1 3.2 km/h
  • Reverse 2 6.0 km/h
  • Reverse 3 8.7 km/h
  • Reverse 4 13.8 km/h
  • Reverse 5 25.8 km/h
  • Reverse 6 37.5 km/h
  • Steering Range – left/right 47.5 Degrees
  • Top Speed – forward 47.5 km/h
  • Top Speed – reverse 37.5 km/h
  • Turning Radius, outside front tires 7.3 m

Service Refill Capacities

  • Circle drive housing 7.0 L
  • Cooling System 40.0 L
  • Engine Oil 18.0 L
  • Front wheel spindle bearing housing 0.5 L
  • Fuel Capacity 305.0 L
  • Tandem housing (each) 49.0 L
  • Transmission/Differential/Final Drives 48.0 L

Standards

  • Brakes ISO 3450:1996
  • ROPS/FOPS ISO 3471:1994/ISO 3449: 2005
  • Sound ISO 6394:2008, ISO 6396:2008
  • Steering ISO 5010:2007

Operating Specifications

  • Articulation Angle – left/right 20 Degrees

Hydraulic System

  • Circuit Type Load Sensing, Closed Center, PPPC
  • Maximum System Pressure 25500.0 kPa
  • Optional High Output Pump 210.5 L/min
  • Pump Output Standard Pump 159.1 L/min
  • Pump Type Variable Piston
  • Reservoir Tank Capacity 24.5 L
  • Standby Pressure 3600.0 kPa

Dimensions (Approximate)

  • Ground Clearance – Center Front Axle 602.0 mm
  • Ground Clearance, Trans. Case 341.0 mm
  • Height – Non-ROPS Cab 3321.0 mm
  • Height – ROPS Cab 3326.0 mm
  • Height – ROPS Canopy 3326.0 mm
  • Height – Top of Cylinders 2885.0 mm
  • Height to Exhaust Stack 2865.0 mm
  • Length – Between Tandem Axles 1510.0 mm
  • Length – Counterweight to Ripper 9769.0 mm
  • Length – Front Axle to Mid Tandem 5870.0 mm
  • Length – Front Axle to Moldboard 2598.0 mm
  • Length – Front Tire to Rear of Machine 8265.0 mm
  • Width – Outside Front Tires 2449.0 mm
  • Width – Outside Rear Tires 2439.0 mm
  • Width – Tire Center Lines 2056.0 mm

Power Train

  • Brakes – Parking Air actuated, multiple oil-disc
  • Brakes – Secondary Dual Circuit
  • Brakes – Servic Air actuated, multiple oil-disc
  • Brakes – Service, surface area 18606.0 cm2
  • Forward/Reverse Gears 8 forward/6 reverse
  • Transmission Direct drive, Powershift

Ripper

  • Machine length increase, beam raised 1058.0 mm
  • Penetration force 4083.0 kg
  • Pryout Force 2108.0 kg
  • Ripper shank holder spacing 533.0 mm
  • Ripper shank holders, quantity 5
  • Ripping depth – maximum 262.0 mm

FRAME

  • Circle – blade beam thickness 30.0 mm
  • Circle – diameter 1530.0 mm
  • Drawbar – height 127.0 mm
  • Drawbar – width 76.2 mm
  • Front axle – height to center 615.0 mm
  • Front axle – total oscillation per side 32 Degrees
  • Front axle – wheel lean, left/right 18 Degrees
  • Front-linear weights – maximum 172.0 kg/m
  • Front-section modulus – maximum 3681.0 cm3
  • Front-section modulus – minimum 1619.0 cm3
  • Front-side plates – thickness 10.0 mm
  • Front-side plates – width 236.0 mm
  • Front-top/bottom plate – thickness 22.0 mm
  • Front-top/bottom plate – width 280.0 mm

MOLDBOARD

  • Arc Radius 413.0 mm
  • Blade Pull – base GVW 8112.0 kg
  • Blade Pull – maximum GVW 10623.0 kg
  • Blade Width 3.7 m
  • Cutting Edge – thickness 16.0 mm
  • Cutting Edge – width 152.0 mm
  • Down Pressure – base GVW 5594.0 kg
  • Down Pressure – maximum GVW 9317.0 kg
  • End Bit – thickness 16.0 mm
  • End Bit – width 152.0 mm
  • Moldboard – height 610.0 mm
  • Moldboard – thickness 22.0 mm
  • Throat Clearance 58.0 mm

BLADE RANGE

  • Blade Tip Range – backward 5 Degrees
  • Blade Tip Range – forward 40 Degrees
  • Circle Centershift – left 658.0 mm
  • Circle Centershift – right 656.0 mm
  • Maximum Blade Position Angle 90 Degrees
  • Maximum depth of cut 775.0 mm
  • Maximum lift above ground 410.0 mm
  • Maximum shoulder reach outside of tires – left 1764.0 mm
  • Maximum shoulder reach outside of tires – right 1928.0 mm
  • Moldboard Sideshift – left 512.0 mm
  • Moldboard Sideshift – right 663.0 mm

SCARIFIER

  • Mid, V-Type – Scarifier shank holder spacing 116.0 mm
  • Mid, V-Type – Scarifier shank holders quantity 11
  • Mid, V-Type – Scarifying depth, maximum 229.0 mm
  • Mid, V-Type – Working width 1184.0 mm

TANDEMS

  • Drive chain pitch 44.5 mm
  • Height 438.0 mm
  • Sidewall thickness – inner 1.0 mm
  • Sidewall thickness – outer 16.0 mm
  • Tandem oscillation – front down 25 Degrees
  • Tandem oscillation – front up 15 Degrees
  • Wheel axle spacing 1510.0 mm
  • Width 172.0 mm

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