The Cat® 320 raises the bar with fuel-saving hydraulics, advanced technology, and an operator-focused cab, delivering lower fuel and maintenance costs and higher productivity for site prep, truck loading, trenching, and utility work.
| Net Power - ISO 9249 | 172hp |
| Net Power - ISO 9249 (DIN) | 175hp (metric) |
| Engine Model | Cat® C4.4 |
| Engine Power - ISO 14396 | 174hp |
| Engine Power - ISO 14396 (DIN) | 176hp (metric) |
| Bore | 4in |
| Stroke | 5in |
| Displacement | 269in³ |
| Biodiesel Capability | Up to B20¹ |
| Emissions | 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 |
| Note (2) | ¹Cat diesel engines are required to use ULSD (ultra-low sulfur diesel fuel with 15 ppm of sulfur or less) and are compatible* with ULSD blended with the following lower-carbon intensity fuels** up to: 20% biodiesel FAME (fatty acid methyl ester)*** or 100 |
| Operating Weight | 49800lb |
| Note | Reach boom, R2.9 (9'6") stick, Heavy Duty (HD) 1.19 m³ (1.56 yd³) bucket 790 mm (31") triple grouser shoes, 4200 kg (10,400 lb) counterweight. |
| Maximum Digging Depth | 22ft |
| Boom | Reach 5.7 m (18'8") |
| Stick | Reach 2.9 m (9'6") |
| Bucket | 1.19 m ³ (1.56 yd³) |
| Maximum Reach at Ground Level | 32.3ft |
| Maximum Cutting Height | 30.7ft |
| Maximum Loading Height | 21.3ft |
| Minimum Loading Height | 7.1ft |
| Maximum Depth Cut for 2440 mm (8 ft) Level Bottom | 21.5ft |
| Maximum Vertical Wall Digging Depth | 17ft |
| Bucket Digging Force - ISO | 31586lbf |
| Stick Digging Force - ISO | 23987lbf |
| Main System - Maximum Flow | 429 l/min (113 gal/min) |
| Maximum Pressure - Equipment | 5075psi |
| Maximum Pressure - Equipment - Lift Mode | 5510psi |
| Maximum Pressure - Travel | 4974psi |
| Maximum Pressure - Swing | 3988psi |
| Swing Speed* | 11.25r/min |
| Maximum Swing Torque | 60300lbf·ft |
| Note (1) | *For CE-marked machine default value may be set lower. |
| Fuel Tank Capacity | 91.1gal (US) |
| Cooling System | 6.6gal (US) |
| Engine Oil | 4gal (US) |
| Swing Drive | 1.6gal (US) |
| Final Drive - Each | 1.1gal (US) |
| Hydraulic System - Including Tank | 61.8gal (US) |
| Hydraulic Tank | 30.4gal (US) |
| DEF Tank | 10.3gal (US) |
| Boom | Reach 5.7 m (18'8") |
| Stick | Reach 2.9 m (9'6") |
| Bucket | 1.19 m ³ (1.56 yd³) |
| Shipping Height - Top of Cab | 9.7ft |
| Handrail Height | 9.7ft |
| Shipping Length | 31.3ft |
| Tail Swing Radius | 9.3ft |
| Counterweight Clearance | 3.4ft |
| Ground Clearance | 1.5ft |
| Track Length | 14.6ft |
| Length to Center of Rollers | 11.7ft |
| Track Gauge | 7.8ft |
| Transport Width | 9.8ft |
| Air Conditioning | The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a or R1234yf. See the label or instruction manual for identification of the gas. If equipped with R134a (Global Warming Potential = 1430), the system conta |
| Recyclability | 97% |
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| Engine |
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| Hydraulic System |
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| Undercarriage And Structures |
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| Booms And Sticks |
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| Cat Technology |
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| Hydraulic System |
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