Caterpillar 312B Hydraulic Excavator
Units
Dimensions
Boom/Stick Option (Hex) 1
I
Max Cutting Height
27.01ft in
J
Max Loading Height
19.23ft in
K
Max Reach Along Ground
25.56ft in
L
Max Vertical Wall Digging Depth
14.54ft in
M
Max Digging Depth
16.84ft in
Boom/Stick Option (Hex) 1
boom w/ stick 2100mm
Boom/Stick Option (Hex) 2
A
Shipping Length Of Unit
24.92ft in
I
Max Cutting Height
27.81ft in
C
Shipping Height Of Unit
9.06ft in
J
Max Loading Height
20ft in
K
Max Reach Along Ground
26.83ft in
L
Max Vertical Wall Digging Depth
16.31ft in
M
Max Digging Depth
18.21ft in
Boom/Stick Option (Hex) 2
Boom 14\'1\" (4300mm) / Stick 8\'2\" (2500mm)
Boom/Stick Option (Hex) 3
A
Shipping Length Of Unit
24.97ft in
I
Max Cutting Height
28.53ft in
J
Max Loading Height
20.77ft in
C
Shipping Height Of Unit
9.06ft in
K
Max Reach Along Ground
28.3ft in
L
Max Vertical Wall Digging Depth
17.54ft in
M
Max Digging Depth
19.85ft in
Boom/Stick Option (Hex) 3
Boom 14\'1\" (4300mm) / Stick 9\'10\" (3000mm)
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
9.13ft 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
22930lb
Ground Pressure
5.66psi
Max Travel Speed
3.42mph
Specifications
Engine
Number Of Cylinders
4
Engine Make
2236
Engine Model
3064T
Net Power
84hp
Gross Power
91hp
Power Measured @
1900rpm
Displacement
259cu in
Aspiration
Turbocharged
Bore
4.1in
Stroke
5.2in
Engine Model
Cat 3064T Diesel Engine
Flywheel Power
84hp
Eec 80/1269
84hp
Sae J1349
84hp
Iso 9249
84hp
Operational
Operating Weight
27410lb
Fuel Capacity
66.1gal
Cooling System Fluid Capacity
4.1gal
Hydraulic System Fluid Capacity
42.8gal
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
63.5gal/min
Swing Mechanism
Swing Speed
12.3rpm
Swing Torque
22422lb ft
Weights
Operating Weight
28680lb
Buckets
Reference Bucket Capacity
0.6yd3
Minimum Bucket Capacity
0.5yd3
Maximum Bucket Capacity
1.1yd3
Hydraulic System
Pilot System - Maximum Flow
4.8 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)
32 gal/min
Boom Cylinder - Bore
4.3in
Boom Cylinder - Stroke
40in
Stick Cylinder - Bore
4.8in
Stick Cylinder - Stroke
47in
Bucket Cylinder - Bore
4in
Bucket Cylinder - Stroke
37.5in
Service Refill Capacities
Cooling System
4.1gal
Fuel Tank
66gal
Final Drive - Each
0.7gal
Hydraulic Tank
25.9gal
Hydraulic System - Including Tank
42.8gal
Engine Oil
3.4gal
Swing Drive - Each
0.8gal
Drive
Maximum Drawbar Pull
22930lb
Travel Speed
3.4mph
