Caterpillar 321D LCR Specs

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Overview

The Caterpillar 321D LCR is a hydraulic excavator listed in the Heavy Equipment Hub equipment database with structured specifications for comparison, research, and machine selection. Key specification points include engine power of 148 hp, operating weight of 54740.8 lb, working depth of 22.00 ft, reach of 32.08 ft, capacity of 1.4 yd³ and travel speed of 3.5 mph. This model can be reviewed for excavation, trenching, loading, site preparation, and fleet comparison workflows. Use the full specifications table to compare the Caterpillar 321D LCR against similar hydraulic excavator models by power, weight, capacity, dimensions, speed, and other technical values.

Key Specifications

Operating Weight
51,875
lb

Net Power
148
hp

Max Digging Depth
22
ft

Reference Bucket Capacity
1.40
yd3

Full Specifications

79 specs

Dimensions

Boom/Stick Option (Hex) 1 Boom 18\'7\" (5680mm) / Stick 9\'7\" (2900mm) -Reach

Ground Clearance 1.50 ft / 0.46 m

Height to Top of Cab 9.75 ft / 2.97 m

Length of Track on Ground 11.98 ft / 3.65 m

Max Cutting Height 36.08 ft / 11.00 m

Max Digging Depth 22 ft / 6.71 m

Max Loading Height 25.92 ft / 7.90 m

Max Reach Along Ground 32.08 ft / 9.78 m

Max Vertical Wall Digging Depth 19.33 ft / 5.89 m

Removal Counterweight Clearance 1 lb / 1 kg

Shipping Height 9.90 ft / 3.02 m

Shipping Height Of Unit 9.92 ft / 3.02 m

Shipping Length Of Unit 29.17 ft / 8.89 m

Tail Swing Radius 5.50 ft / 1.68 m

Transport Width 10.44 ft / 3.18 m

Width To Outside Of Tracks 9.75 ft / 2.97 m

Engine

Alternator Supplied Amperage 50 A

Bore 4.10 in / 104 mm

Cooling System Fluid Capacity 6.60 gal / 25.0 L

Displacement 389 cu in / 6.4 L

Engine Make 2236

Engine Model C6.4 ACERT

Engine Oil Capacity 8 gal / 30.3 L

Fuel Capacity 87 gal / 329.3 L

Fuel Tank Capacity 87 gal / 329.3 L

Hydraulic Pump Flow Capacity 54 gal/min / 204.4 L/min

Hydraulic System Fluid Capacity 55 gal / 208.2 L

Hydraulic System Relief Valve Pressure 5,076 psi / 350.0 bar

Hydraulic Tank 32 gal / 121.1 L

Maximum Bucket Capacity 2.10 yd³ / 1.61 m³

Net Flywheel Power 148 hp / 110.4 kW

Net Power 148 hp / 110.4 kW

Net Power - Eec 80/1269 148 hp / 110.4 kW

Net Power - Iso 9249 148 hp / 110.4 kW

Net Power - Sae J1349 148 hp / 110.4 kW

Operating Voltage 24 V

Operating Weight 51,875 lb / 23,530 kg

Operating Weight - Long Undercarriage 51,875 lb / 23,530 kg

Operating Weight - Long Undercarriage 2 53,308 lb / 24,180 kg

Operating Weight - Standard Undercarriage 51,875 lb / 23,530 kg

Reference Bucket Capacity 1.40 yd³ / 1.07 m³

Stroke 5.20 in / 132 mm

Swing Drive 2.10 deg

Swing Drive Fluid Capacity 2.10 gal / 7.9 L

Swing Speed 11.50 deg

Swing Torque 45,612 deg

Hydraulics

B1 Family Bucket Cylinder - Bore 4.70 in / 119 mm

B1 Family Bucket Cylinder - Stroke 43.50 in / 1,105 mm

Boom Cylinder - Bore 4.70 in / 119 mm

Boom Cylinder - Stroke 49.60 in / 1,260 mm

Engine Oil 8 gal / 30.3 L

Main Implement System - Maximum Flow (2x) 54 gal/min / 204.4 L/min

Maximum Pressure - Equipment 5,076 psi / 350.0 bar

Maximum Pressure - Heavy Lift 5,221 psi / 360.0 bar

Maximum Pressure - Swing 3,626 psi / 250.0 bar

Maximum Pressure - Travel 5,076 psi / 350.0 bar

Performance ANSI/SAE J1166 APR 90

Pilot System - Maximum Flow 9 gal/min / 34.1 L/min

Pilot System - Maximum Pressure 566 psi / 39.0 bar

Reach Stick Cylinder - Bore 5.50 ft / 1.68 m

Reach Stick Cylinder - Stroke 59.80 ft / 18.23 m

Other

Brakes SAE J1026 APR90

Cab/Fogs 1,356

Cooling System 6.60 gal / 25.0 L

Final Drive - Each 2.1

Hydraulic System - Including Tank 55 gal / 208.2 L

Hydraulic Tank - Including Suction Pipe 35 gal / 132.5 L

Maximum Drawbar Pull 46,311 lb / 21,006 kg

Maximum Travel Speed 3.50 mph / 5.6 km/h

Net Power 148 hp / 110.4 kW

Number Of Carrier Rollers - Each Side - Long Undercarriage 2

Number Of Shoes - Each Side - Long Undercarriage 49

Number Of Track Rollers - Each Side - Long Undercarriage 8

Undercarriage

Drawbar Pull 46,311 lb / 21,006 kg

Max Travel Speed 3.50 mph / 5.6 km/h

Number Of Carrier Rollers Per Side 2

Number Of Shoes Per Side 49

Number of Track Rollers per Side 8

Shoe Size 24 in / 610 mm

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Frequently Asked Questions

What is the operating weight of the Caterpillar 321D LCR? +

The Caterpillar 321D LCR has an operating weight of 51,875 lb (23,530 kg). This places it in a class suited for hydraulic excavator applications where ground pressure and transport weight are key considerations.

How powerful is the Caterpillar 321D LCR engine? +

The Caterpillar 321D LCR produces 148 hp (110.4 kW) of engine power. This output is typical for its weight class and designed to handle demanding Hydraulic Excavator work cycles efficiently.

What is the maximum digging depth of the Caterpillar 321D LCR? +

The Caterpillar 321D LCR has a maximum digging depth of 22.00 ft (6.71 m). This makes it suitable for trenching, foundation work, and other excavation tasks requiring vertical reach.

What is the maximum reach of the Caterpillar 321D LCR? +

The Caterpillar 321D LCR has a maximum reach along the ground of 32.08 ft (9.78 m), allowing it to work effectively across wide areas without repositioning.

What is the travel speed of the Caterpillar 321D LCR? +

The Caterpillar 321D LCR has a maximum travel speed of 3.5 mph (5.6 km/h), enabling efficient movement between work areas on the job site.

How does the Caterpillar 321D LCR compare to similar Hydraulic Excavator models? +

You can compare the Caterpillar 321D LCR side by side with any other model using the Heavy Equipment Hub compare tool. Key comparison points include engine power, operating weight, digging depth, hydraulic flow, and overall dimensions.