311F RR Hydraulic Excavator
311F LRR
311F LRR
311F LRR
Cat® 311F L RR Small Excavator Delivers in Tight SpacesSPECS SUMMARY
| Net Power - ISO 9249 | 71 HP (52 kW) |
| Operating Weight | 28660 lb (13000 kg) |
| Maximum Digging Depth | 18.33 ft (5590 mm) |
| Engine Model | C3.4B |
Specifications
| Net Power - ISO 9249 | 71 HP (52 kW) |
| Operating Weight | 28660 lb (13000 kg) |
| Maximum Digging Depth | 18.33 ft (5590 mm) |
| Engine Model | 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) |
| Main System - Maximum Flow | 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 Speed | 10 r/min (10 r/min) |
| Maximum Swing Torque | 22791 ft·lbf (30.9 kN·m) |
| 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) |
| 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 (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) |
| 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 (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) |
Benefits and Features
- The C3.4B U.S. EPA Tier 4 Final/EU Stage IV engine burns up to 14% less fuel than the model it replaces, the 311D.
- The engine is equipped to run on up to B20 biodiesel fuel.
- Two power modes, high power and eco mode, help operators manage fuel consumption.
- Auto engine idle shutdown saves fuel, reduces emissions, and extends service intervals.
- Reduced radius is ideal for work in space-restricted areas.
- Site prep and finishing work are quick and easy with a wide range of Cat work tools.
- Utility work is fast and flawless with a Cat bucket and compactor.
- A coupler lets you swap between attachments in seconds without leaving the cab.
- See the whole money-making attachment line for your machine at www.cat.com/attachments.
- The roll-over protective structure (ROPS) certified cab is quiet and comfortable.
- Automatic climate control helps maintain consistent cab temperature.
- Joystick consoles and armrests are adjustable.
- Seats are adjustable and feature air suspension and heated and cooled options.
- The LCD monitor is easy to navigate and programmable in 42 languages.
- Booms and sticks are built with baffle plates for enhanced service life.
- Box-section structures with multi-plate fabrications, castings, and forgings are used in high-stress areas.
- Greased track link between pins and bushings increases undercarriage life and reduces noise.
- Many routine service and maintenance points can be accessed from ground level reducing the time taken to check and service your machine.
- Service doors are designed to prevent debris entry and to make access to fluid taps and filters easy.
- The cooling package is designed to prevent plugging and has wide clearance to help make blowing off debris easy.
- The side-view camera is offered to enhance visibility on the boom side of the machine to help make operators more effective and efficient.*
* Regulation requirement for Europe only.
- Cat technology improves job site efficiency.
- Product Link™ system connects owners to their equipment, providing access to machine data such as location, hours, fuel consumption, idle time, events, and diagnostic codes.