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Caterpillar

311B

Excavator

Operating Weight
24,527 lb
Max Digging Depth
187 in
Max Digging Depth
199 in
Net Power
79.0 hp
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Caterpillar 311B Excavator
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Specifications

75 data points

Operating Specifications

Operating Specifications specifications
Operating Weight24,527 lb
Fuel Capacity66.1 gal
Hydraulic Pump Flow Capacity57.1 gal/min
Hydraulic System Fluid Capacity41.5 gal
Hydraulic System Relief Valve Pressure4,980 psi
Engine Oil Capacity3.5 gal
Cooling System Fluid Capacity4.1 gal
Operating Voltage24 V
Swing Drive Fluid Capacity0.8 gal
Alternator Supplied Amperage50 A

Engine

Engine specifications
Engine ModelCat 3064T
Displacement259 in³
Power Measured @1,800 rpm
Gross Power85.0 hp
Net Power79.0 hp
AspirationTurbocharged
Bore4 in
Stroke5 in
Flywheel Power79.0 hp
ISO 924979.0 hp
SAE J134978.0 hp

Weights

Weights specifications
Operating Weight27,680 lb

Hydraulic System

Hydraulic System specifications
Maximum Pressure - Swing3,340 psi
Maximum Pressure - Travel4,980 psi
Boom Cylinder - Bore4 in
Boom Cylinder - Stroke40 in
Main Implement System - Maximum Flow (2x)28.0 gal/min
Stick Cylinder - Bore4 in
Stick Cylinder - Stroke47 in
Maximum Pressure - Implements4,340 psi
Bucket Cylinder - Bore4 in
Bucket Cylinder - Stroke37 in

Dimensions

Dimensions specifications
Ground Clearance18 in
Height - Top of Cab109 in
Length of Track on Ground103 in
Tail Swing Radius84 in
Width to Outside of Tracks98 in
Removal Counterweight Clearance37 in

Undercarriage

Undercarriage specifications
Ground Pressure6 psi
Track Gauge79 in
Max Travel Speed3.5 mph
Shoe Size20 in
Drawbar Pull20,720 lb

Boom/Stick Excavator Option 1

Boom/Stick Excavator Option 1 specifications
Max Digging Depth187 in
Max Reach Along Ground288 in
Max Loading Height209 in
Max Vertical Wall Digging Depth165 in
Max Cutting Height302 in

Bucket

Bucket specifications
Reference Bucket Capacity0.60 yd³
Maximum Bucket Capacity1.10 yd³
Minimum Bucket Capacity0.50 yd³

Drive System

Drive System specifications
Maximum Drawbar Pull20,720 lb
Travel Speed3.4 mph

Service Refill Capacities

Service Refill Capacities specifications
Cooling System4.1 gal
Hydraulic System - Including Tank41.5 gal
Final Drive - Each0.7 gal
Engine Oil3.4 gal
Hydraulic Tank25.9 gal
Swing Drive - Each0.8 gal
Fuel Tank66.0 gal

Swing Mechanism

Swing Mechanism specifications
Swing Speed11 rpm

Boom/Stick Excavator Option 2

Boom/Stick Excavator Option 2 specifications
Max Digging Depth199 in
Max Vertical Wall Digging Depth175 in
Max Cutting Height307 in
Max Loading Height215 in
Max Reach Along Ground299 in
Shipping Length of Unit285 in
Shipping Height of Unit109 in

Boom/Stick Excavator Option 3

Boom/Stick Excavator Option 3 specifications
Max Digging Depth221 in
Max Cutting Height320 in
Max Loading Height228 in
Max Vertical Wall Digging Depth196 in
Max Reach Along Ground319 in
Shipping Length of Unit287 in
Shipping Height of Unit109 in

Comparable machines

Other excavators in a similar weight class.