Caterpillar 321D LCR

Boom/Stick Excavator Option 1

Max Cutting Height36.10 ft (11 m)
Max Digging Depth22 ft (7 m)
Max Loading Height26 ft (8 m)
Max Reach Along Ground32.10 ft (10 m)
Max Vertical Wall Digging Depth19.40 ft (6 m)
Shipping Height of Unit10 ft (3 m)
Shipping Length of Unit29.20 ft (9 m)

Boom/Stick Excavator Option 2

Max Cutting Height35.20 ft (11 m)
Max Digging Depth20.70 ft (6 m)
Max Loading Height25 ft (8 m)
Max Reach Along Ground30.90 ft (9 m)
Max Vertical Wall Digging Depth18 ft (5 m)
Shipping Height of Unit10 ft (3 m)
Shipping Length of Unit29.20 ft (9 m)


Maximum Bucket Capacity2.10 cu yds (2 m)
Reference Bucket Capacity1.40 cu yds (1 m)


Ground Clearance1.50 ft (0 m)
Height - Top of Cab9.80 ft (3 m)
Length of Track on Ground12 ft (4 m)
Removal Counterweight Clearance1.50 ft (0 m)
Shipping Height9.90 ft (3 m)
Tail Swing Radius5.50 ft (2 m)
Transport Width10.50 ft (3 m)
Width to Outside of Tracks9.80 ft (3 m)


Maximum Drawbar Pull46,311 lbs (21,007 kg)


Bore4.10 in (10 cm)
Displacement389 cu in (0 m)
Engine ModelCat C6.4 ACERT
Net Power148 hp (110 kw)
Net Power - EEC 80/1269148 hp (110 kw)
Net Power - ISO 9249148 hp (110 kw)
Net Power - SAE J1349148 hp (110 kw)
Stroke5.20 in (13 cm)

Hydraulic System

566566 psi
99 gal/min (34 l/min)
Boom Cylinder - Bore4.70 in (12 cm)
Boom Cylinder - Stroke49.60 in (126 cm)
Main Implement System - Maximum Flow (2x)54
Maximum Pressure - Equipment5,076 psi
Maximum Pressure - Swing3,626 psi
Maximum Pressure - Travel5,076 psi

Operating Specifications

Alternator Supplied Amperage50 A
Cooling System Fluid Capacity6.60 gal (25 l)
Engine Oil Capacity8 gal (30 l)
Fuel Capacity87 gal (329 l)
Hydraulic Pump Flow Capacity54 gal/min (204 l/min)
Hydraulic System Fluid Capacity55 gal (208 l)
Hydraulic System Relief Valve Pressure5,076 psi
Operating Voltage24 V
Operating Weight51,875 lbs (23,530 kg)
Swing Drive Fluid Capacity2.10 gal (8 l)

Service Refill Capacities

Cooling System6.60 gal (25 l)
Engine Oil8 gal (30 l)
Final Drive - Each2.10 gal (8 l)
Fuel Tank Capacity87 gal (329 l)
Hydraulic System - Including Tank55 gal (208 l)
Hydraulic Tank32 gal (121 l)
Swing Drive2.10 gal (8 l)


BrakesSAE J1026 APR90

Swing Mechanism

Swing Speed11.50 rpm


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


Drawbar Pull46,311 lbs (21,007 kg)
Max Travel Speed3.50 mph (6 kph)
Number of Carrier Rollers per Side2
Number of Shoes per Side49
Number of Track Rollers per Side8
Shoe Size24 in (61 cm)


Operating Weight51,875 lbs (23,530 kg)
Operating Weight - Long Undercarriage51,875 lbs (23,530 kg)
Operating Weight - Standard Undercarriage51,875 lbs (23,530 kg)

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