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311F L RR (2017)

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Overview

If you want a machine with the power to match your jobs but owning and operating costs to fit your business, then the Cat® 311F L RR excavator is your answer. Its reduced radius will get you into some pretty tight spots, and its reasonable price and miserly fuel burn will help you operate on a tight budget.

Engine

  • Engine Model Cat® C3.4B Cat® C3.4B
  • Flywheel Power 70.0 HP 52.0 kW
  • Bore 3.9 in 99.0 mm
  • Stroke 4.33 in 110.0 mm
  • Displacement 207.0 in³ 3.4 l
  • Gross Power - SAE J1995 74.0 HP 55.0 kW
  • Net Power - SAE J1349 70.0 HP 52.0 kW
  • Note The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 0.9 kg of refrigerant which has a CO2 equivalent of 1.287 metric tonnes. The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 0.9 kg of refrigerant which has a CO2 equivalent of 1.287 metric tonnes.

Weights

  • Operating Weight 28660.0 lb 13000.0 kg

Machine Weight

  • Note *4.3 m (14'1") reach boom, 2.8 m (9'2") stick, 700 mm (28") track shoes, without blade. *4.3 m (14'1") reach boom, 2.8 m (9'2") stick, 700 mm (28") track shoes, without blade.
  • Operating Weight* 28660.0 lb 13000.0 kg

Swing

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

Drive

  • Maximum Drawbar Pull 25696.0 lb 114.3 kN
  • Maximum Travel Speed - High 3.4 mile/h 5.4 km/h
  • Maximum Travel Speed - Low 2.2 mile/h 3.6 km/h

Hydraulic System

  • Main System - Maximum Flow - Total 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
  • Pilot System - Maximum Flow 5.8 gal/min 21.9 l/min
  • Pilot System - Maximum Pressure 598.0 psi 4120.0 kPa
  • Boom Cylinder - Bore 4.0 in 100.0 mm
  • Boom Cylinder - Stroke 39.0 in 1002.0 mm
  • Bucket Cylinder - Bore 4.0 in 100.0 mm
  • Bucket Cylinder - Stroke 37.0 in 939.0 mm
  • Stick Cylinder - Bore 4.0 in 110.0 mm
  • Stick Cylinder - Stroke 47.0 in 1194.0 mm

Service Refill Capacities

  • Cooling System 2.4 gal (US) 9.0 l
  • Swing Drive - Each 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
  • Engine Oil - With Filter 2.1 gal (US) 8.0 l
  • Fuel Tank Capacity 55.48 gal (US) 210.0 l

Sound

  • ISO 6395 - Spectator Noise 99.0 dB(A) 99.0 dB(A)
  • ISO 6396 - Operator Noise (Closed) 72.0 dB(A) 72.0 dB(A)

Dimensions - Reach Boom - 4.3 m (14'1"); R2.8 m (9'2") Stick

  • Cab Height 9.08 ft 2760.0 mm
  • Cab Height - With Top Guard 9.5 ft 2920.0 mm
  • Counterweight Clearance 3.0 ft 915.0 mm
  • Ground Clearance 1.42 ft 440.0 mm
  • Handrail Height 9.25 ft 2820.0 mm
  • Length - Center of Rollers 9.08 ft 2780.0 mm
  • Shipping Height 9.25 ft 2820.0 mm
  • Shipping Height - Top of Boom 9.08 ft 2760.0 mm
  • Shipping Length - Long Undercarriage 22.67 ft 6920.0 mm
  • Shipping Length - Long Undercarriage with Blade 24.67 ft 7540.0 mm
  • Tail Swing Radius 5.75 ft 1750.0 mm
  • Track Gauge 6.5 ft 1990.0 mm
  • Track Length 11.42 ft 3490.0 mm
  • Transport Width - 700 mm (28 in) Shoes 8.75 ft 2690.0 mm

Track

  • Number of Carrier Rollers - Each Side 1 piece 1 piece
  • Number of Shoes - Each Side 43 pieces 43 pieces
  • Number of Track Rollers - Each Side 6 pieces 6 pieces

Working Ranges - Reach Boom - 4.3 m (14'1"); R2.8 m (9'2") Stick

  • Maximum Cutting Height 26.67 ft 8140.0 mm
  • Maximum Depth Cut for 2440 mm (8'0") Level Bottom 16.33 ft 4990.0 mm
  • Maximum Digging Depth 18.33 ft 5590.0 mm
  • Maximum Loading Height 18.92 ft 5770.0 mm
  • Maximum Reach - Ground Level 26.58 ft 8100.0 mm
  • Maximum Vertical Wall Digging Depth 16.0 ft 4880.0 mm
  • Minimum Loading Height 4.33 ft 1330.0 mm

Fuel Efficiency

  • 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.

Versatility

  • 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 www.cat.com/attachments.

Comfort

  • 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.

Durability

  • 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.

Maintenance

  • 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.

Safety

  • 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.

Technology

  • Cat Connect 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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