Caterpillar 320B Specs

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Overview

The Caterpillar 320B 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 128 hp, operating weight of 42769.7 lb, working depth of 24.87 ft, reach of 34.88 ft, capacity of 1.2 yd³ and travel speed of 3.4 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 320B against similar hydraulic excavator models by power, weight, capacity, dimensions, speed, and other technical values.

Key Specifications

Operating Weight
42,769.70
lb

Net Power
128
hp

Gross Power
134
hp

Max Digging Depth
24.87
ft

Full Specifications

74 specs

Dimensions

Boom/Stick Option (Hex) 1 Boom 18\'7\" (5680mm) / Stick 12\'8\" (3900mm)

Ground Clearance 1.56 ft / 0.48 m

Height to Top of Cab 9.65 ft / 2.94 m

Length of Track on Ground 10.72 ft / 3.27 m

Max Cutting Height 31.99 ft / 9.75 m

Max Digging Depth 24.87 ft / 7.58 m

Max Loading Height 22.74 ft / 6.93 m

Max Reach Along Ground 34.88 ft / 10.63 m

Max Vertical Wall Dig Depth 15.36 ft / 4.68 m

Max Vertical Wall Digging Depth 22.35 ft / 6.81 m

Removal Counterweight Clearance 3 lb / 2 kg

Shipping Height Of Unit 11.26 ft / 3.43 m

Shipping Length Of Unit 30.91 ft / 9.42 m

Tail Swing Radius 9.03 ft / 2.75 m

Width To Outside Of Tracks 9.19 ft / 2.80 m

Engine

Alternator Supplied Amperage 50 A

Bore 4.10 in / 104 mm

Cat 3066 T Diesel Engine Net Power - Eec 80/1269

Cooling System Fluid Capacity 6.70 gal / 25.4 L

Displacement 389 cu in / 6.4 L

Engine Make 2236

Engine Model 3066T

Engine Oil Capacity 5.50 gal / 20.8 L

Fuel Capacity 89.90 gal / 340.3 L

Fuel Tank Capacity 90 gal / 340.7 L

Gross Power 134 hp / 99.9 kW

Hydraulic Pump Flow Capacity 97.80 gal/min / 370.2 L/min

Hydraulic System Fluid Capacity 58.20 gal / 220.3 L

Hydraulic System Relief Valve Pressure 4,980 psi / 343.4 bar

Maximum Bucket Capacity 2 yd³ / 1.53 m³

Minimum Bucket Capacity 0.50 yd³ / 0.38 m³

Net Flywheel Power 128 hp / 95.4 kW

Net Power 128 hp / 95.4 kW

Net Power - Eec 80/1269 128 hp / 95.4 kW

Net Power - Iso 9249 128 hp / 95.4 kW

Net Power - Sae J1349 128 hp / 95.4 kW

Number of Cylinders 6

Operating Voltage 24 V

Operating Weight 42,770 lb / 19,400 kg

Operating Weight - Standard Undercarriage 42,770 lb / 19,400 kg

Power Measured @ 1,800 rpm

Reference Bucket Capacity 1.20 yd³ / 0.92 m³

Stroke 5.20 in / 132 mm

Swing Drive 1.60 deg

Swing Drive Fluid Capacity 1.60 gal / 6.1 L

Swing Torque 42,050 deg

Hydraulics

B1 Family Bucket Cylinder - Bore 5 in / 127 mm

B1 Family Bucket Cylinder - Stroke 41 in / 1,041 mm

Boom Cylinder - Bore 5 in / 127 mm

Boom Cylinder - Stroke 50 in / 1,270 mm

C Family Bucket Cylinder - Bore 5 in / 127 mm

C Family Bucket Cylinder - Stroke 46 in / 1,168 mm

Engine Oil 5.10 gal / 19.3 L

Main Implement System - Maximum Flow (2x) 48.90 gal/min / 185.1 L/min

Maximum Pressure - Equipment 4,980 psi / 343.4 bar

Maximum Pressure - Swing 3,340 psi / 230.3 bar

Maximum Pressure - Travel 4,980 psi / 343.4 bar

Pilot System - Maximum Flow 10.80 gal/min / 40.9 L/min

Pilot System - Maximum Pressure 600 psi / 41.4 bar

Other

Cooling System 6.60 gal / 25.0 L

Final Drive - Each 2.6

Hydraulic System - Including Tank 58 gal / 219.6 L

Maximum Drawbar Pull 39,800 lb / 18,053 kg

Maximum Travel Speed 3.40 mph / 5.5 km/h

Net Power 128 hp / 95.4 kW

Optional (1) 24

Optional (2) 28

Optional (3) 32

Standard With Long Undercarriage - Triple Grouser 32

Standard With Standard Undercarriage 24

Undercarriage

Drawbar Pull 39,800 lb / 18,053 kg

Max Travel Speed 3.42 mph / 5.5 km/h

Shoe Size 23.63 in / 600 mm

Track Gauge 7.22 ft / 2.20 m

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Frequently Asked Questions

What is the operating weight of the Caterpillar 320B? +

The Caterpillar 320B has an operating weight of 42,770 lb (19,400 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 320B engine? +

The Caterpillar 320B produces 134 hp (99.9 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 320B? +

The Caterpillar 320B has a maximum digging depth of 24.87 ft (7.58 m). This makes it suitable for trenching, foundation work, and other excavation tasks requiring vertical reach.

What is the maximum reach of the Caterpillar 320B? +

The Caterpillar 320B has a maximum reach along the ground of 34.88 ft (10.63 m), allowing it to work effectively across wide areas without repositioning.

What is the travel speed of the Caterpillar 320B? +

The Caterpillar 320B has a maximum travel speed of 3.4 mph (5.5 km/h), enabling efficient movement between work areas on the job site.

How does the Caterpillar 320B compare to similar Hydraulic Excavator models? +

You can compare the Caterpillar 320B 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.