311F L RR

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The Cat® 311F RR reduced radius excavator operates where others don't fit. Offering power, excellent fuel efficiency and low owning/operating costs, the 311F RR is a great option for a wide range of excavator needs.


  • Net Power - ISO 9249 71.0 HP 52.0 kW
  • Engine Model C3.4B C3.4B
  • Engine Power - ISO 14396 74.0 HP 55.0 kW
  • Bore 3.9 in 99.0 mm
  • Stroke 4.33 in 110.0 mm
  • Displacement 207.0 in³ 3.4 l

Hydraulic System

  • Main System - Maximum Flow 125 × 2 L/min (33 × 2 gal/min) 125 × 2 L/min (33 × 2 gal/min)
  • Maximum Pressure - Equipment 4424.0 psi 30.5 MPa
  • Maximum Pressure - Swing 3336.0 psi 23.0 MPa
  • Maximum Pressure - Travel 5076.0 psi 35.0 MPa

Swing Mechanism

  • Swing Speed 10.0 r/min 10.0 r/min
  • Maximum Swing Torque 22791.0 ft·lbf 30.9 kN·m


  • Operating Weight 28660.0 lb 13000.0 kg

Service Refill Capacities

  • Fuel Tank Capacity 55.48 gal (US) 210.0 l
  • Cooling System 2.4 gal (US) 9.0 l
  • Engine Oil 2.1 gal (US) 8.0 l
  • Swing Drive 0.63 gal (US) 2.4 l
  • Final Drive - Each 0.79 gal (US) 3.0 l
  • Hydraulic System - Including Tank 42.3 gal (US) 160.0 l
  • Hydraulic Tank 25.1 gal (US) 95.0 l


  • Boom 4.3 m (14'1" ft) 4.3 m (14'1" ft)
  • Stick R2.8 m (9'2") R2.8 m (9'2")
  • Bucket GD 0.53 m3 (0.69 yd3) GD 0.53 m3 (0.69 yd3)
  • Shipping Height - Top of Cab 9.08 ft 2760.0 mm
  • Handrail Height 9.25 ft 2820.0 mm
  • Shipping Length 22.67 ft 6920.0 mm
  • Shipping Length - with Blade 24.67 ft 7540.0 mm
  • Tail Swing Radius 5.75 ft 1750.0 mm
  • Counterweight Clearance 3.0 ft 915.0 mm
  • Ground Clearance 1.42 ft 440.0 mm
  • Track Length 11.42 ft 3490.0 mm
  • Length to Center of Rollers 9.08 ft 2780.0 mm
  • Track Gauge 6.5 ft 1990.0 mm
  • Transport Width 8.75 ft 2690.0 mm

Working Ranges

  • Maximum Digging Depth 18.33 ft 5590.0 mm
  • Boom 4.3 m (14'1" ft) 4.3 m (14'1" ft)
  • Stick R2.8 m (9'2") R2.8 m (9'2")
  • Bucket GD 0.53 m3 (0.69 yd3) GD 0.53 m3 (0.69 yd3)
  • Maximum Reach at Ground Level 26.58 ft 8100.0 mm
  • Maximum Cutting Height 26.67 ft 8140.0 mm
  • Maximum Loading Height 18.92 ft 5770.0 mm
  • Minimum Loading Height 4.33 ft 1330.0 mm
  • Maximum Vertical Wall Digging Depth 16.0 ft 4880.0 mm
  • Bucket Digging Force (ISO) 20007.0 lbf 89.0 kN
  • Stick Digging Force (ISO) 11690.0 lbf 52.0 kN


  • The C3.4B U.S. EPA Tier 4 Final/EU Stage IV engine burns up to 14% less fuel than the model it replaces, the 311D.
  • The engine is equipped to run on up to B20 biodiesel fuel.
  • Two power modes, high power and eco mode, help operators manage fuel consumption.
  • Auto engine idle shutdown saves fuel, reduces emissions, and extends service intervals.


  • Reduced radius is ideal for work in space-restricted areas.
  • Site prep and finishing work are quick and easy with a wide range of Cat work tools.
  • Utility work is fast and flawless with a Cat bucket and compactor.
  • A coupler lets you swap between attachments in seconds without leaving the cab.
  • See the whole money-making attachment line for your machine at


  • The roll-over protective structure (ROPS) certified cab is quiet and comfortable.
  • Automatic climate control helps maintain consistent cab temperature.
  • Joystick consoles and armrests are adjustable.
  • Seats are adjustable and feature air suspension and heated and cooled options.
  • The LCD monitor is easy to navigate and programmable in 42 languages.


  • Booms and sticks are built with baffle plates for enhanced service life.
  • Box-section structures with multi-plate fabrications, castings, and forgings are used in high-stress areas.
  • Greased track link between pins and bushings increases undercarriage life and reduces noise.


  • Many routine service and maintenance points can be accessed from ground level reducing the time taken to check and service your machine.
  • Service doors are designed to prevent debris entry and to make access to fluid taps and filters easy.
  • The cooling package is designed to prevent plugging and has wide clearance to help make blowing off debris easy.


  • The side-view camera is offered to enhance visibility on the boom side of the machine to help make operators more effective and efficient.*

    * Regulation requirement for Europe only.


  • Cat technology improves job site efficiency.
  • Product Link™ system connects owners to their equipment, providing access to machine data such as location, hours, fuel consumption, idle time, events, and diagnostic codes.

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