311F RR Hydraulic Excavator | Cat

Product Specifications for 311F L RR

US
Metric

Engine

Engine Power - ISO 9249	71 HP 52 kW
Engine Model	C3.4B C3.4B
Engine Power - ISO 14396	74 HP 55 kW
Bore	3.9 in 99 mm
Stroke	4.33 in 110 mm
Displacement	207 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 psi 30.5 MPa
Maximum Pressure - Swing	3336 psi 23 MPa
Maximum Pressure - Travel	5076 psi 35 MPa

Swing Mechanism

Swing Speed	10 r/min 10 r/min
Maximum Swing Torque	22791 ft·lbf 30.9 kN·m

Weights

Operating Weight

28660 lb 13000 kg

Service Refill Capacities

Fuel Tank Capacity	55.48 gal (US) 210 l
Cooling System	2.4 gal (US) 9 l
Engine Oil	2.1 gal (US) 8 l
Swing Drive	0.63 gal (US) 2.4 l
Final Drive - Each	0.79 gal (US) 3 l
Hydraulic System - Including Tank	42.3 gal (US) 160 l
Hydraulic Tank	25.1 gal (US) 95 l

Dimensions

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 mm
Handrail Height	9.25 ft 2820 mm
Shipping Length	22.67 ft 6920 mm
Shipping Length - with Blade	24.67 ft 7540 mm
Tail Swing Radius	5.75 ft 1750 mm
Counterweight Clearance	3 ft 915 mm
Ground Clearance	1.42 ft 440 mm
Track Length	11.42 ft 3490 mm
Length to Center of Rollers	9.08 ft 2780 mm
Track Gauge	6.5 ft 1990 mm
Transport Width	8.75 ft 2690 mm

Working Ranges

Maximum Digging Depth	18.33 ft 5590 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 mm
Maximum Cutting Height	26.67 ft 8140 mm
Maximum Loading Height	18.92 ft 5770 mm
Minimum Loading Height	4.33 ft 1330 mm
Maximum Vertical Wall Digging Depth	16 ft 4880 mm
Bucket Digging Force (ISO)	20007 lbf 89 kN
Stick Digging Force (ISO)	11690 lbf 52 kN

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