Caterpillar

320 Hydraulic Excavator

Name: 320 Hydraulic Excavator
Brand: Caterpillar

Net Power – ISO 9249

172 hp

128.5 kW

Operating Weight

49800 lb

22600 kg

Maximum Digging Depth

22 ft

6720 mm

Overview

The Cat® 320 raises the bar for efficiency and fuel economy in this size class. With the industry’s highest level of standard factory technology, a cab focused on operator comfort, plus low fuel and maintenance costs, the 320 will set a new pace for productivity and profit in your operation.

Media

Next Generation Excavator Cat® Connect Technology

Cat® Next Generation Excavators: Vision

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Stick Steer for Cat® Excavators

Exterior

360° Exterior view. Double click on the image to zoom in on any area of the product.

Interior

360° interior view. Double click on the image to zoom in on any area of the product.

Documents

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Features

LATEST FEATURES

PERFORMANCE WITH LESS FUEL

EFFICIENCY THROUGH TECHNOLOGY

TAKE THE GUESSWORK OUT OF MANAGING YOUR EQUIPMENT

DESIGNED FOR OPERATORS

RELIABILITY YOU CAN COUNT ON

SIMPLE TO OPERATE

SAVE ON SERVICE AND MAINTENANCE

SAFELY HOME EVERY DAY

SUSTAINABILITY

Specifications

US Metric

Engine

Spec	Value
Net Power – ISO 9249	172 hp 128.5 kW
Net Power – ISO 9249 (DIN)	175 hp (metric) 175 hp (metric)
Engine Model	Cat C4.4 Cat C4.4
Engine Power – ISO 14396:2002	174 hp 129.4 kW
Engine Power – ISO 14396 (DIN)	176 hp (metric) 176 hp (metric)
Bore	4 in 105 mm
Stroke	5 in 127 mm
Displacement	269 in³ 4.4 l
Biodiesel Capability	Up to B20¹ Up to B20¹
Emissions	Meets U.S. EPA Tier 4 Final, EU Stage V, and Japan 2014 emission standards. Meets U.S. EPA Tier 4 Final, EU Stage V, and Japan 2014 emission standards.
Note (1)	Net power advertised is the power available at the flywheel when the engine is equipped with fan, air intake system, exhaust system, and alternator with engine speed at 2,200 rpm. Advertised power is tested per the specified standard in effect at the time of manufacture. Net power advertised is the power available at the flywheel when the engine is equipped with fan, air intake system, exhaust system, and alternator with engine speed at 2,200 rpm. Advertised power is tested per the specified standard in effect at the time of manufacture.
Note (2)	¹Cat diesel engines are required to use ULSD (ultra-low sulfur diesel fuel with 15 ppm of sulfur or less) or ULSD blended with the following lower-carbon intensity fuels** up to: 20% biodiesel FAME (fatty acid methyl ester)* or 100% renewable diesel, HVO (hydrotreated vegetable oil) and GTL (gas-to-liquid) fuels. Refer to guidelines for successful application. Please consult your Cat dealer or “Caterpillar Machine Fluids Recommendations” (SEBU6250) for details. Engines with no aftertreatment devices can use higher blends, up to 100% biodiesel (for use of blends higher than 20% biodiesel, consult your Cat dealer). Tailpipe greenhouse gas emissions from lower-carbon intensity fuels are essentially the same as traditional fuels. ¹Cat diesel engines are required to use ULSD (ultra-low sulfur diesel fuel with 15 ppm of sulfur or less) or ULSD blended with the following lower-carbon intensity fuels* up to: 20% biodiesel FAME (fatty acid methyl ester)* or 100% renewable diesel, HVO (hydrotreated vegetable oil) and GTL (gas-to-liquid) fuels. Refer to guidelines for successful application. Please consult your Cat dealer or “Caterpillar Machine Fluids Recommendations” (SEBU6250) for details. Engines with no aftertreatment devices can use higher blends, up to 100% biodiesel (for use of blends higher than 20% biodiesel, consult your Cat dealer). *Tailpipe greenhouse gas emissions from lower-carbon intensity fuels are essentially the same as traditional fuels.

Hydraulic System

Spec	Value
Main System – Maximum Flow	429 l/min (113 gal/min) 429 l/min (113 gal/min)
Maximum Pressure – Equipment	5075 psi 35000 kPa
Maximum Pressure – Travel	4974 psi 34300 kPa
Maximum Pressure – Swing	3988 psi 27500 kPa

Swing Mechanism

Spec	Value
Maximum Swing Torque	60300 lbf·ft 82 kN·m

Weights

Spec	Value
Operating Weight	49800 lb 22600 kg
Note	Reach boom, R2.9 (9'6") stick, Heavy Duty (HD) 1.19 m ³ (1.56 yd³) bucket 790 mm (31") triple grouser shoes, 4200 kg (10,400 lb) counterweight. Reach boom, R2.9 (9'6") stick, Heavy Duty (HD) 1.19 m ³ (1.56 yd³) bucket 790 mm (31") triple grouser shoes, 4200 kg (10,400 lb) counterweight.

Service Refill Capacities

Spec	Value
Fuel Tank Capacity	86.6 gal (US) 345 l
Cooling System	6.6 gal (US) 25 l
Engine Oil	4 gal (US) 15 l
Swing Drive – Each	1.6 gal (US) 6 l
Final Drive – Each	1.1 gal (US) 4 l
Hydraulic System – Including Tank	61.8 gal (US) 234 l
Hydraulic Tank	30.4 gal (US) 115 l
DEF Tank	10.3 gal (US) 39 l

Dimensions

Spec	Value
Boom	Reach 5.7 m (18'8") Reach 5.7 m (18'8")
Stick	Reach 2.9 m (9'6") Reach 2.9 m (9'6")
Bucket	1.19 m ³ (1.56 yd³) 1.19 m ³ (1.56 yd³)
Shipping Height – Top of Cab	9.7 ft 2960 mm
Handrail Height	9.7 ft 2950 mm
Shipping Length	31.3 ft 9530 mm
Tail Swing Radius	9.3 ft 2830 mm
Counterweight Clearance	3.4 ft 1050 mm
Ground Clearance	1.5 ft 470 mm
Track Length	14.6 ft 4450 mm
Track Gauge	7.8 ft 2380 mm

Working Ranges and Forces

Spec	Value
Maximum Digging Depth	22 ft 6720 mm
Boom	Reach 5.7 m (18'8") Reach 5.7 m (18'8")
Stick	Reach 2.9 m (9'6") Reach 2.9 m (9'6")
Bucket	1.19 m ³ (1.56 yd³) 1.19 m ³ (1.56 yd³)
Maximum Reach at Ground Level	32.3 ft 9860 mm
Maximum Cutting Height	30.7 ft 9370 mm
Maximum Loading Height	21.3 ft 6490 mm
Minimum Loading Height	7.1 ft 2170 mm
Maximum Depth Cut for 2440 mm (8 ft) Level Bottom	21.5 ft 6550 mm
Maximum Vertical Wall Digging Depth	17 ft 5190 mm
Bucket Digging Force – ISO	38811 lbf·ft 150 kN
Stick Digging Force – ISO	23911 lbf·ft 106 kN

Air Conditioning System

Spec	Value
Air Conditioning	The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 0.85 kg (1.9 lb) of refrigerant which has a CO2 equivalent of 1.216 metric tonnes (1.340 tons). The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 0.85 kg (1.9 lb) of refrigerant which has a CO2 equivalent of 1.216 metric tonnes (1.340 tons).