New CAT Equipment

311F L RR Hydraulic Excavator

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.

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Learn more about the 311F L RR Hydraulic Excavator


Product Specs


Net Power - ISO 9249 71 HP
Engine Model C3.4B
Engine Power - ISO 14396 74 HP
Bore 3.9 in
Stroke 4.33 in
Displacement 207 in³

Hydraulic System

Main System - Maximum Flow 125 × 2 L/min (33 × 2 gal/min)
Maximum Pressure - Equipment 4424 psi
Maximum Pressure - Swing 3336 psi
Maximum Pressure - Travel 5076 psi

Swing Mechanism

Swing Speed 10 r/min
Maximum Swing Torque 22791 ft·lbf


Operating Weight 28660 lb

Service Refill Capacities

Fuel Tank Capacity 55.48 gal (US)
Cooling System 2.4 gal (US)
Engine Oil 2.1 gal (US)
Swing Drive 0.63 gal (US)
Final Drive - Each 0.79 gal (US)
Hydraulic System - Including Tank 42.3 gal (US)
Hydraulic Tank 25.1 gal (US)


Boom 4.3 m (14'1" ft)
Stick R2.8 m (9'2")
Bucket GD 0.53 m3 (0.69 yd3)
Shipping Height - Top of Cab 9.08 ft
Handrail Height 9.25 ft
Shipping Length 22.67 ft
Shipping Length - with Blade 24.67 ft
Tail Swing Radius 5.75 ft
Counterweight Clearance 3 ft
Ground Clearance 1.42 ft
Track Length 11.42 ft
Length to Center of Rollers 9.08 ft
Track Gauge 6.5 ft
Transport Width 8.75 ft

Working Ranges

Maximum Digging Depth 18.33 ft
Boom 4.3 m (14'1" ft)
Stick R2.8 m (9'2")
Bucket GD 0.53 m3 (0.69 yd3)
Maximum Reach at Ground Level 26.58 ft
Maximum Cutting Height 26.67 ft
Maximum Loading Height 18.92 ft
Minimum Loading Height 4.33 ft
Maximum Vertical Wall Digging Depth 16 ft
Bucket Digging Force (ISO) 20007 lbf
Stick Digging Force (ISO) 11690 lbf