311F L RR Hydraulic Excavator

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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.


Net Power - ISO 9249
71 HP
Engine Model
Engine Power - ISO 14396
74 HP
3.9 in
4.33 in
207 in³


Operating Weight
28660 lb

Working Ranges

Maximum Digging Depth
18.33 ft
4.3 m (14'1" ft)
R2.8 m (9'2")
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

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

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)


4.3 m (14'1" ft)
R2.8 m (9'2")
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