Caterpillar 311B Hydraulic Excavator
Units
Dimensions
Boom/Stick Option (Hex) 1
I
Max Cutting Height
25.14ft in
J
Max Loading Height
17.39ft in
K
Max Reach Along Ground
23.92ft in
L
Max Vertical Wall Digging Depth
13.62ft in
M
Max Digging Depth
15.56ft in
Boom/Stick Option (Hex) 1
Boom 14\'1\" (4300mm) / Stick 1950mm
Boom/Stick Option (Hex) 2
A
Shipping Length Of Unit
23.79ft in
I
Max Cutting Height
25.58ft in
C
Shipping Height Of Unit
9.06ft in
J
Max Loading Height
17.85ft in
K
Max Reach Along Ground
24.84ft in
L
Max Vertical Wall Digging Depth
14.59ft in
M
Max Digging Depth
16.57ft in
Boom/Stick Option (Hex) 2
Boom 14\'1\" (4300mm) / Stick 7\'5\" (2250mm)
Boom/Stick Option (Hex) 3
A
Shipping Length Of Unit
23.82ft in
I
Max Cutting Height
26.65ft in
J
Max Loading Height
18.92ft in
C
Shipping Height Of Unit
9.06ft in
K
Max Reach Along Ground
26.58ft in
L
Max Vertical Wall Digging Depth
16.29ft in
M
Max Digging Depth
18.38ft in
Boom/Stick Option (Hex) 3
Boom 14\'1\" (4300mm) / Stick 9\'2\" (2800mm)
Dimensions
E
Ground Clearance
1.45ft in
G
Height To Top Of Cab
9.06ft in
B
Width To Outside Of Tracks
8.17ft in
D
Length Of Track On Ground
8.57ft in
H
Tail Swing Radius
6.99ft in
Removal Counterweight Clearance
3.02ft in
Undercarriage
F
Track Gauge
6.53ft in
N
Shoe Size
19.69in
Drawbar Pull
20720lb
Ground Pressure
5.51psi
Max Travel Speed
3.42mph
Specifications
Engine
Number Of Cylinders
4
Engine Make
2236
Engine Model
3064T
Net Power
79hp
Gross Power
85hp
Power Measured @
1800rpm
Displacement
259cu in
Aspiration
Turbocharged
Bore
4in
Stroke
5.1in
Engine Model
Cat 3064T
Flywheel Power
79hp
Eec 80/1269
79hp
Sae J1349
78hp
Iso 9249
79hp
Operational
Operating Weight
24526.5lb
Fuel Capacity
66.1gal
Cooling System Fluid Capacity
4.1gal
Hydraulic System Fluid Capacity
41.5gal
Operating Voltage
24V
Engine Oil Capacity
3.5gal
Swing Drive Fluid Capacity
0.8gal
Alternator Supplied Amperage
50amps
Hydraulic System Relief Valve Pressure
4980psi
Hydraulic Pump Flow Capacity
57.1gal/min
Swing Mechanism
Swing Speed
10.8rpm
Swing Torque
22422lb ft
Weights
Operating Weight
27680lb
Buckets
Reference Bucket Capacity
0.6yd3
Minimum Bucket Capacity
0.5yd3
Maximum Bucket Capacity
1.1yd3
Hydraulic System
Pilot System - Maximum Flow
4.5 gal/min
Pilot System - Maximum Pressure
570 psi
Maximum Pressure - Travel
4980 psi
Maximum Pressure - Swing
3340 psi
Maximum Pressure - Implements
4340 psi
Main Implement System - Maximum Flow (2x)
28 gal/min
Boom Cylinder - Bore
4in
Boom Cylinder - Stroke
40in
Stick Cylinder - Bore
4.3in
Stick Cylinder - Stroke
47in
Bucket Cylinder - Bore
4in
Bucket Cylinder - Stroke
37in
Service Refill Capacities
Cooling System
4.1gal
Fuel Tank
66gal
Final Drive - Each
0.7gal
Hydraulic Tank
25.9gal
Hydraulic System - Including Tank
41.5gal
Engine Oil
3.4gal
Swing Drive - Each
0.8gal
Drive
Maximum Drawbar Pull
20720lb
Travel Speed
3.4mph
