320 GC Hydraulic Excavator

Overview

The Cat^® 320 GC provides reliable digging power with fewer fuel stops and longer service intervals. Designed for general duty applications, it reduces ownership costs with its simple operation and durable structure.

Key Features

More Comfort. More Performance. More Versatility.

Low Fuel Consumption

A precise combination of low engine speed and a large hydraulic pump deliver top performance, helping to burn 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.

Lower Maintenance Costs

Extended and synchronized maintenance intervals help you get more done at a lower cost compared to the previous model.

Low CO2 Emissions

The 320 GC emits lower CO2 emissions compared to the previous 320F ECO.

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Specifications

Net Power - ISO 9249	146 hp
Net Power - ISO 9249 (DIN)	148 hp (metric)
Engine Model	Cat® C4.4
Engine Power - ISO 14396	148 hp
Engine Power - ISO 14396 (DIN)	150 hp (metric)
Bore	4 in
Stroke	5 in
Displacement	269 in³
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 of manufacture.
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% 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. While Caterpillar engines are compatible with these alternative fuels, some regions may not allow their use. Tailpipe greenhouse gas emissions from lower-carbon intensity fuels are essentially the same as traditional fuels. **Engines with no aftertreatment devices are compatible with higher blends, up to 100% biodiesel (for use of blends higher than 20% biodiesel, consult your Cat dealer).

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

Swing Speed*	11.6 r/min
Maximum Swing Torque	54900 lbf·ft
Note (1)	*For CE-marked machine default value may be set lower.

Operating Weight	48500 lb
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.

Fuel Tank Capacity	91.1 gal (US)
Cooling System	6.6 gal (US)
Engine Oil	4 gal (US)
Swing Drive	3.2 gal (US)
Final Drive - Each	1.1 gal (US)
Hydraulic System - Including Tank	61.8 gal (US)
Hydraulic Tank	30.4 gal (US)
DEF Tank	10.3 gal (US)

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

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

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 contains 0.85 kg (1.9 lb) of refrigerant which has a CO2 equivalent of 1.216 metric tonnes (1.340 tons). If equipped with R1234yf (Global Warming Potential = 0.5), the system contains 0.75 kg (1.7 lb) of refrigerant which has a CO2 equivalent of 0.001 metric tonnes (0.001 tons).

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 contains 0.85 kg (1.9 lb) of refrigerant which has a CO2 equivalent of 1.216 metric tonnes (1.340 tons). If equipped with R1234yf (Global Warming Potential = 0.5), the system contains 0.75 kg (1.7 lb) of refrigerant which has a CO2 equivalent of 0.001 metric tonnes (0.001 tons).