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Caterpillar

321D LCR

Excavator

Operating Weight
51,875 lb
Max Digging Depth
264 in
Max Digging Depth
248 in
Net Power
148.0 hp
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Caterpillar 321D LCR Excavator
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Specifications

71 data points

Operating Specifications

Operating Specifications specifications
Operating Weight51,875 lb
Fuel Capacity87.0 gal
Hydraulic Pump Flow Capacity54.0 gal/min
Hydraulic System Fluid Capacity55.0 gal
Hydraulic System Relief Valve Pressure5,076 psi
Engine Oil Capacity8.0 gal
Cooling System Fluid Capacity6.6 gal
Operating Voltage24 V
Swing Drive Fluid Capacity2.1 gal
Alternator Supplied Amperage50 A

Engine

Engine specifications
Engine ModelCat C6.4 ACERT
Displacement389 in³
Net Power148.0 hp
Stroke5 in
Bore4 in
Net Power - ISO 9249148.0 hp
Net Power - SAE J1349148.0 hp
Net Power - EEC 80/1269148.0 hp

Weights

Weights specifications
Operating Weight51,875 lb
Operating Weight - Standard Undercarriage51,875 lb
Operating Weight - Long Undercarriage51,875 lb

Hydraulic System

Hydraulic System specifications
Maximum Pressure - Swing3,626 psi
Maximum Pressure - Travel5,076 psi
Boom Cylinder - Bore5 in
Boom Cylinder - Stroke50 in
Main Implement System - Maximum Flow (2x)54.0 gal/min
Maximum Pressure - Equipment5,076 psi

Dimensions

Dimensions specifications
Ground Clearance18 in
Height - Top of Cab118 in
Length of Track on Ground144 in
Tail Swing Radius66 in
Width to Outside of Tracks118 in
Removal Counterweight Clearance18 in
Transport Width126 in
Shipping Height119 in

Undercarriage

Undercarriage specifications
Number of Track Rollers per Side8
Max Travel Speed3.5 mph
Shoe Size24 in
Number of Shoes per Side49
Number of Carrier Rollers per Side2
Drawbar Pull46,311 lb

Boom/Stick Excavator Option 1

Boom/Stick Excavator Option 1 specifications
Max Digging Depth264 in
Max Reach Along Ground385 in
Max Loading Height312 in
Max Vertical Wall Digging Depth233 in
Max Cutting Height433 in
Shipping Length of Unit350 in
Shipping Height of Unit120 in

Bucket

Bucket specifications
Reference Bucket Capacity1.40 yd³
Maximum Bucket Capacity2.11 yd³

Drive System

Drive System specifications
Maximum Drawbar Pull46,311 lb

Service Refill Capacities

Service Refill Capacities specifications
Cooling System6.6 gal
Hydraulic System - Including Tank55.0 gal
Final Drive - Each2.1 gal
Engine Oil8.0 gal
Hydraulic Tank32.0 gal
Fuel Tank Capacity87.0 gal
Swing Drive2.1 gal

Swing Mechanism

Swing Mechanism specifications
Swing Speed12 rpm

Boom/Stick Excavator Option 2

Boom/Stick Excavator Option 2 specifications
Max Digging Depth248 in
Max Vertical Wall Digging Depth216 in
Max Cutting Height422 in
Max Loading Height300 in
Max Reach Along Ground371 in
Shipping Length of Unit350 in
Shipping Height of Unit120 in

Standards

Standards specifications
BrakesSAE J1026 APR90
Cab/FOGSSAE J1356 FEB88

Track

Track specifications
Number of Shoes - Each Side - Long Undercarriage49
Number of Track Rollers - Each Side - Long Undercarriage8
Number of Carrier Rollers - Each Side - Long Undercarriage2

Comparable machines

Other excavators in a similar weight class.