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.
Boom/Stick Excavator Option 1
Caterpillar 311B Excavator Boom/Stick Excavator Option 1 specifications
Max Cutting Height
25.20 ft (7.68 m)
Max Digging Depth
15.60 ft (4.75 m)
Max Loading Height
17.40 ft (5.30 m)
Max Reach Along Ground
24.00 ft (7.32 m)
Max Vertical Wall Digging Depth
13.70 ft (4.18 m)
Boom/Stick Excavator Option 2
Caterpillar 311B Excavator Boom/Stick Excavator Option 2 specifications
Max Cutting Height
25.60 ft (7.80 m)
Max Digging Depth
16.60 ft (5.06 m)
Max Loading Height
17.90 ft (5.46 m)
Max Reach Along Ground
24.90 ft (7.59 m)
Max Vertical Wall Digging Depth
14.60 ft (4.45 m)
Shipping Height of Unit
9.10 ft (2.77 m)
Shipping Length of Unit
23.80 ft (7.25 m)
Boom/Stick Excavator Option 3
Caterpillar 311B Excavator Boom/Stick Excavator Option 3 specifications
Max Cutting Height
26.70 ft (8.14 m)
Max Digging Depth
18.40 ft (5.61 m)
Max Loading Height
19.00 ft (5.79 m)
Max Reach Along Ground
26.60 ft (8.11 m)
Max Vertical Wall Digging Depth
16.30 ft (4.97 m)
Shipping Height of Unit
9.10 ft (2.77 m)
Shipping Length of Unit
23.90 ft (7.28 m)
Bucket
Caterpillar 311B Excavator Bucket specifications
Maximum Bucket Capacity
1.10 cu yd (0.84 cu m)
Minimum Bucket Capacity
0.50 cu yd (0.38 cu m)
Reference Bucket Capacity
0.60 cu yd (0.46 cu m)
Dimensions
Caterpillar 311B Excavator Dimensions specifications
Ground Clearance
1.50 ft (0.46 m)
Height - Top of Cab
9.10 ft (2.77 m)
Length of Track on Ground
8.60 ft (2.62 m)
Removal Counterweight Clearance
3.10 ft (0.94 m)
Tail Swing Radius
7.00 ft (2.13 m)
Width to Outside of Tracks
8.20 ft (2.50 m)
DRIVE SYSTEM
Caterpillar 311B Excavator DRIVE SYSTEM specifications
Maximum Drawbar Pull
20,720.00 lbs (9,398.45 kg)
Travel Speed
3.40 mph (5.47 kph)
Engine
Caterpillar 311B Excavator Engine specifications
Aspiration
Turbocharged
Bore
4.00 in (10.16 cm)
Displacement
259.00 cu in (4,244.26 cu cm)
Engine Model
Cat 3064T
Flywheel Power
79.00 hp (58.91 kw)
Gross Power
85.00 hp (63.39 kw)
ISO 9249
79.00 hp (58.91 kw)
Net Power
79.00 hp (58.91 kw)
Power Measured @
1800 rpm
SAE J1349
78.00 hp (58.17 kw)
Stroke
5.10 in (12.95 cm)
Hydraulic System
Caterpillar 311B Excavator Hydraulic System specifications
Boom Cylinder - Bore
4.00 in (10.16 cm)
Boom Cylinder - Stroke
40.00 in (101.60 cm)
Bucket Cylinder - Bore
4.00 in (10.16 cm)
Bucket Cylinder - Stroke
37.00 in (93.98 cm)
Main Implement System - Maximum Flow (2x)
28.00 gpm (105.98 lpm)
Maximum Pressure - Implements
4340 psi
Maximum Pressure - Swing
3340 psi
Maximum Pressure - Travel
4980 psi
Stick Cylinder - Bore
4.30 in (10.92 cm)
Stick Cylinder - Stroke
47.00 in (119.38 cm)
Operating Specifications
Caterpillar 311B Excavator Operating Specifications specifications
Alternator Supplied Amperage
50 amps
Cooling System Fluid Capacity
4.10 gal (15.52 l)
Engine Oil Capacity
3.50 gal (13.25 l)
Fuel Capacity
66.10 gal (250.19 l)
Hydraulic Pump Flow Capacity
57.10 gpm (216.12 lpm)
Hydraulic System Fluid Capacity
41.50 gal (157.08 l)
Hydraulic System Relief Valve Pressure
4980 psi
Operating Voltage
24 volts
Operating Weight
24,526.50 lbs (11,125.05 kg)
Swing Drive Fluid Capacity
0.80 gal (3.03 l)
Service Refill Capacities
Caterpillar 311B Excavator Service Refill Capacities specifications
Cooling System
4.10 gal (15.52 l)
Engine Oil
3.40 gal (12.87 l)
Final Drive - Each
0.70 gal (2.65 l)
Fuel Tank
66.00 gal (249.81 l)
Hydraulic System - Including Tank
41.50 gal (157.08 l)
Hydraulic Tank
25.90 gal (98.03 l)
Swing Drive - Each
0.80 gal (3.03 l)
Swing Mechanism
Caterpillar 311B Excavator Swing Mechanism specifications
Swing Speed
10.8 rpm
Undercarriage
Caterpillar 311B Excavator Undercarriage specifications
Drawbar Pull
20,720.00 lbs (9,398.45 kg)
Ground Pressure
5.6 psi
Max Travel Speed
3.50 mph (5.63 kph)
Shoe Size
19.70 in (50.04 cm)
Track Gauge
6.60 ft (2.01 m)
Weights
Caterpillar 311B Excavator Weights specifications
Operating Weight
27,680.00 lbs (12,555.45 kg)
