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320 GC  Hydraulic Excavator

320 GC Hydraulic Excavator


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More Comfort ‚Äď More Performance ‚Äď More Versatility

  • Up To 20% Less Fuel Consumption

    A precise combination of lower engine speed and a large hydraulic pump delivers top performance while burning less fuel.

  • Improved Reliability and Efficiency

    An advanced electro-hydraulic system provides the optimum balance of power and efficiency while giving you the control you need for precise digging requirements.

  • Up To 25% Lower Maintenance Costs

    With extended and more synchronized maintenance intervals, you get more done at a lower cost compared to the previous model.

  • Up to 21% Less CO2 Emissions

    The 320 GC emits up to 21% less CO2 than the previous 320F ECO.


Biodiesel Capability Up to B20¬Ļ
Bore 4 in
Displacement 269 in³
Emissions Meets U.S. EPA Tier 4 Final, EU Stage V, and Japan 2014 emission standards
Engine Model Cat C4.4
Engine Power - ISO 14396 148 HP
Engine Power - ISO 14396 (DIN) 150 hp (metric)
Net Power - ISO 9249 146 HP
Net Power - ISO 9249 (DIN) 148 hp (metric)
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 2,000 rpm. Advertised power is tested per the specified standard in effect at the time of manufacture.
Note (2) ¬ĻCat 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 ‚ÄúCaterpillar Machine Fluids Recommendations‚ÄĚ (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.
Stroke 5 in

Hydraulic System

Main System - Maximum Flow 442 l/min (117 gal/min)
Maximum Pressure - Equipment 5075 psi
Maximum Pressure - Swing 3625 psi
Maximum Pressure - Travel 4974 psi

Swing Mechanism

Maximum Swing Torque 54900 ft·lbf
Swing Speed 11.6 r/min


Note Long undercarriage, Reach boom, R2.9 (9'6") stick, General Duty (GD) 1.0 m³ (1.31 yd³) bucket, 700 mm (28 in) triple grouser shoes and 4200 kg (9,300 lb) counterweight.
Operating Weight 48500 lb

Service Refill Capacities

Cooling System 6.6 gal (US)
DEF Tank 10.3 gal (US)
Engine Oil 4 gal (US)
Final Drive - Each 1.1 gal (US)
Fuel Tank Capacity 86.6 gal (US)
Hydraulic System - Including Tank 61.8 gal (US)
Hydraulic Tank 30.4 gal (US)
Swing Drive - Each 3.2 gal (US)


Boom Reach 5.7 m (18'8")
Bucket GD 1.0 m³ (1.31 yd³)
Counterweight Clearance 3.4 ft
Ground Clearance 1.5 ft
Handrail Height 9.8 ft
Length to Center of Rollers 11.11 ft
Shipping Height - Top of Cab 9.7 ft
Shipping Length 31.3 ft
Stick Reach 2.9 m (9'6")
Tail Swing Radius 9.3 ft
Track Gauge 7.9 ft
Track Length 14.7 ft
Transport Width 10.4 ft

Working Ranges & Forces

Boom Reach 5.7 m (18.8)
Bucket GD 1.0 m³ (1.31 yd³)
Bucket Digging Force - ISO 28935 lbf
Maximum Cutting Height 31 ft
Maximum Depth Cut for 2440 mm (8 ft) Level Bottom 21.6 ft
Maximum Digging Depth 22 ft
Maximum Loading Height 21.3 ft
Maximum Reach at Ground Level 32.3 ft
Maximum Vertical Wall Digging Depth 18.7 ft
Minimum Loading Height 7.1 ft
Stick Reach 2.9 m (9'6")
Stick Digging Force - ISO 22281 lbf

Air Conditioning System

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).


Recyclability 97%

Download resources

320 GC Excavator - Product Brochure (Europe, Chile, Colombia, N Am, Turkey)
320 GC Excavator - Technical Specifications (N Am)
320 GC Excavator - Technical Specifications (Europe)
320 GC Excavator - Technical Specifications (Chile, Colombia, Turkey)

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