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311F L RR Hydraulic Excavator

311F L RR Hydraulic Excavator

At a Glance

Engine Model
Cat® C3.4B
Flywheel Power
70 HP
Operating Weight
28660 lb
Maximum Drawbar Pull
25696 lb
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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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Engine Model Cat® C3.4B
Flywheel Power 70HP
Bore 3.9in
Stroke 4.33in
Displacement 207in³
Gross Power - SAE J1995 74HP
Net Power - SAE J1349 70HP
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.


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Operating Weight 28660lb


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Maximum Drawbar Pull 25696lb
Maximum Travel Speed - Low 2.2mile/h
Maximum Travel Speed - High 3.4mile/h

Service Refill Capacities

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

Working Ranges - Reach Boom - 4.3 m (14'1

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Minimum Loading Height 4.33ft
Maximum Vertical Wall Digging Depth 16ft
Maximum Reach - Ground Level 26.58ft
Maximum Loading Height 18.92ft
Maximum Digging Depth 18.33ft
Maximum Cutting Height 26.67ft


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Maximum Depth Cut for 2440 mm (8'0") Level Bottom 16.33ft


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

Hydraulic System

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Stick Cylinder - Stroke 47in
Stick Cylinder - Bore 4in
Bucket Cylinder - Stroke 37in
Bucket Cylinder - Bore 4in
Boom Cylinder - Stroke 39in
Boom Cylinder - Bore 4in
Pilot System - Maximum Pressure 598psi
Pilot System - Maximum Flow 5.8gal/min
Maximum Pressure - Travel 5076psi
Maximum Pressure - Swing 3336psi
Maximum Pressure - Equipment 4424psi
Main System - Maximum Flow - Total 125 × 2 L/min (33 × 2 gal/min)

Dimensions - Reach Boom - 4.3 m (14'1

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Transport Width - 700 mm (28 in) Shoes 8.75ft
Track Length 11.42ft
Track Gauge 6.5ft
Tail Swing Radius 5.75ft
Shipping Length - Long Undercarriage with Blade 24.67ft
Shipping Length - Long Undercarriage 22.67ft
Shipping Height - Top of Boom 9.08ft
Shipping Height 9.25ft
Length - Center of Rollers 9.08ft
Handrail Height 9.25ft
Ground Clearance 1.42ft
Counterweight Clearance 3ft
Cab Height - With Top Guard 9.5ft
Cab Height 9.08ft


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ISO 6396 - Operator Noise (Closed) 72dB(A)
ISO 6395 - Spectator Noise 99dB(A)


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

Machine Weight

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Operating Weight* 28660lb
Note *4.3 m (14'1") reach boom, 2.8 m (9'2") stick, 700 mm (28") track shoes, without blade.