Engine
| Engine Power - ISO 9249 | 71.0 HP 52.0 kW |
| Engine Model | C3.4B C3.4B |
| Engine Power - ISO 14396 | 74.0 HP 55.0 kW |
| Bore | 3.9 in 99.0 mm |
| Stroke | 4.33 in 110.0 mm |
| Displacement | 207.0 in³ 3.4 l |
Features
The Cat® 311F RR reduced radius excavator operates where others don't fit. Offering power, excellent fuel efficiency and low owning/operating costs, the 311F RR is a great option for a wide range of excavator needs.
When rotated 90 degrees and working over the side, only 505 mm (1'8") hangs over the side – ideal when you are working up against a wall, on a narrow road, or other space-restricted area.
Lower your fuel bill without impacting your productivity.
Reduce owning and operating costs with quick, easy-to-do maintenance.
| Engine Power - ISO 9249 | 71.0 HP 52.0 kW |
| Engine Model | C3.4B C3.4B |
| Engine Power - ISO 14396 | 74.0 HP 55.0 kW |
| Bore | 3.9 in 99.0 mm |
| Stroke | 4.33 in 110.0 mm |
| Displacement | 207.0 in³ 3.4 l |
| Main System - Maximum Flow | 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 |
| Swing Speed | 10.0 r/min 10.0 r/min |
| Maximum Swing Torque | 22791.0 ft·lbf 30.9 kN·m |
| Operating Weight | 28660.0 lb 13000.0 kg |
| Fuel Tank Capacity | 55.48 gal (US) 210.0 l |
| Cooling System | 2.4 gal (US) 9.0 l |
| Engine Oil | 2.1 gal (US) 8.0 l |
| Swing Drive | 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 |
| 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 2760.0 mm |
| Handrail Height | 9.25 ft 2820.0 mm |
| Shipping Length | 22.67 ft 6920.0 mm |
| Shipping Length - with Blade | 24.67 ft 7540.0 mm |
| Tail Swing Radius | 5.75 ft 1750.0 mm |
| Counterweight Clearance | 3.0 ft 915.0 mm |
| Ground Clearance | 1.42 ft 440.0 mm |
| Track Length | 11.42 ft 3490.0 mm |
| Length to Center of Rollers | 9.08 ft 2780.0 mm |
| Track Gauge | 6.5 ft 1990.0 mm |
| Transport Width | 8.75 ft 2690.0 mm |
| Maximum Digging Depth | 18.33 ft 5590.0 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 8100.0 mm |
| Maximum Cutting Height | 26.67 ft 8140.0 mm |
| Maximum Loading Height | 18.92 ft 5770.0 mm |
| Minimum Loading Height | 4.33 ft 1330.0 mm |
| Maximum Vertical Wall Digging Depth | 16.0 ft 4880.0 mm |
| Bucket Digging Force (ISO) | 20007.0 lbf 89.0 kN |
| Stick Digging Force (ISO) | 11690.0 lbf 52.0 kN |
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Leverage Caterpillar connected data and security principles to improve efficiencies, increase productivity and make your business more profitable.
Cat Grade with Depth and Slope for excavators is a 2D grade technology that helps you improve grading efficiency. Grade with Depth and Slope uses position sensing hydraulic cylinders and sensors on the front linkage pins to calculate bucket tip position relative to a benchmark.
Cat Grade with Depth and Slope for excavators is a 2D grade technology that helps you improve grading efficiency. Grade with Depth and Slope uses position sensing hydraulic cylinders and sensors on the front linkage pins to calculate bucket tip position relative to a benchmark.
Cat® Product Link™ wirelessly connects you to your equipment giving you valuable insight into how your machine or fleet is performing. Information such as location, hours, fuel usage, productivity, idle time, and diagnostic codes are made available through online web applications so that you can make timely, fact-based decisions to maximize efficiency, improve productivity, and lower the cost of owning and operating your fleet. Available with satellite or cellular connectivity.
Cat® Product Link™ wirelessly connects you to your equipment giving you valuable insight into how your machine or fleet is performing. Information such as location, hours, fuel usage, productivity, idle time, and diagnostic codes are made available through online web applications so that you can make timely, fact-based decisions to maximize efficiency, improve productivity, and lower the cost of owning and operating your fleet. Available with satellite or cellular connectivity.
