- Category: Excavators ➔
- Manufacturer: Caterpillar ➔
- Model: 311B ➔
The Caterpillar 311B Excavator boasts impressive performance and capabilities ideal for various excavation tasks. With options for different boom/stick configurations, this machine offers exceptional cutting height, digging depth, loading height, reach along the ground, and vertical wall digging depth. Equipped with a powerful engine, efficient hydraulic system, and a spacious cab for operator comfort, the 311B ensures productivity and reliability on job sites. Whether tackling construction projects or industrial jobs, this excavator delivers the power and precision required to get the job done efficiently.
General Specifications
Boom/Stick Excavator Option 1
Max Cutting Height | 25 ft (8 m)
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Max Digging Depth | 16 ft (5 m)
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Max Loading Height | 17 ft (5 m)
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Max Reach Along Ground | 24 ft (7 m)
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Max Vertical Wall Digging Depth | 14 ft (4 m)
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Boom/Stick Excavator Option 2
Max Cutting Height | 26 ft (8 m)
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Max Digging Depth | 17 ft (5 m)
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Max Loading Height | 18 ft (5 m)
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Max Reach Along Ground | 25 ft (8 m)
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Max Vertical Wall Digging Depth | 15 ft (4 m)
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Shipping Height of Unit | 9 ft (3 m)
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Shipping Length of Unit | 24 ft (7 m)
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Boom/Stick Excavator Option 3
Max Cutting Height | 27 ft (8 m)
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Max Digging Depth | 18 ft (6 m)
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Max Loading Height | 19 ft (6 m)
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Max Reach Along Ground | 27 ft (8 m)
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Max Vertical Wall Digging Depth | 16 ft (5 m)
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Shipping Height of Unit | 9 ft (3 m)
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Shipping Length of Unit | 24 ft (7 m)
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Bucket
Maximum Bucket Capacity | 1 cu yd (1 cu m)
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Minimum Bucket Capacity | 1 cu yd (0 cu m)
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Reference Bucket Capacity | 1 cu yd (0 cu m)
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Dimensions
Ground Clearance | 2 ft (0 m)
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Height - Top of Cab | 9 ft (3 m)
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Length of Track on Ground | 9 ft (3 m)
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Removal Counterweight Clearance | 3 ft (1 m)
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Tail Swing Radius | 7 ft (2 m)
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Width to Outside of Tracks | 8 ft (2 m)
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DRIVE SYSTEM
Maximum Drawbar Pull | 20,720 lbs (9,398 kg)
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Travel Speed | 3 mph (5 kph)
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Engine
Aspiration | Turbocharged
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Bore | 4 in (10 cm)
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Displacement | 259 cu in (4,244 cu cm)
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Engine Model | Cat 3064T
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Flywheel Power | 79 hp (59 kw)
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Gross Power | 85 hp (63 kw)
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ISO 9249 | 79 hp (59 kw)
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Net Power | 79 hp (59 kw)
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Power Measured @ | 1800 rpm
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SAE J1349 | 78 hp (58 kw)
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Stroke | 5 in (13 cm)
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Hydraulic System
Boom Cylinder - Bore | 4 in (10 cm)
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Boom Cylinder - Stroke | 40 in (102 cm)
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Bucket Cylinder - Bore | 4 in (10 cm)
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Bucket Cylinder - Stroke | 37 in (94 cm)
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Main Implement System - Maximum Flow (2x) | 28 gpm (106 lpm)
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Maximum Pressure - Implements | 4340 psi
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Maximum Pressure - Swing | 3340 psi
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Maximum Pressure - Travel | 4980 psi
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Stick Cylinder - Bore | 4 in (11 cm)
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Stick Cylinder - Stroke | 47 in (119 cm)
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Operating Specifications
Alternator Supplied Amperage | 50 amps
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Cooling System Fluid Capacity | 4 gal (16 l)
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Engine Oil Capacity | 4 gal (13 l)
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Fuel Capacity | 66 gal (250 l)
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Hydraulic Pump Flow Capacity | 57 gpm (216 lpm)
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Hydraulic System Fluid Capacity | 42 gal (157 l)
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Hydraulic System Relief Valve Pressure | 4980 psi
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Operating Voltage | 24 volts
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Operating Weight | 24,527 lbs (11,125 kg)
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Swing Drive Fluid Capacity | 1 gal (3 l)
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Service Refill Capacities
Cooling System | 4 gal (16 l)
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Engine Oil | 3 gal (13 l)
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Final Drive - Each | 1 gal (3 l)
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Fuel Tank | 66 gal (250 l)
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Hydraulic System - Including Tank | 42 gal (157 l)
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Hydraulic Tank | 26 gal (98 l)
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Swing Drive - Each | 1 gal (3 l)
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Swing Mechanism
Undercarriage
Drawbar Pull | 20,720 lbs (9,398 kg)
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Ground Pressure | 5.6 psi
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Max Travel Speed | 4 mph (6 kph)
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Shoe Size | 20 in (50 cm)
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Track Gauge | 7 ft (2 m)
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Weights
Operating Weight | 27,680 lbs (12,555 kg)
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