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320 GC Hydraulic Excavator

320 GC Hydraulic Excavator

The Cat® 320 GC excavator balances productivity with easy-to-use technology features, a comfortable cab, reduced fuel consumption by up to 20%, and longer maintenance intervals reducing maintenance costs by up to 25% to bring you a durable, low-cost-per-hour excavator for light- to medium-duty applications.

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Net Power - ISO 9249146HP

Net Power - ISO 9249 (DIN)148hp (metric)

Engine ModelCat C4.4

Engine Power - ISO 14396148HP

Engine Power - ISO 14396 (DIN)150hp (metric)




Biodiesel CapabilityUp to B20¹

EmissionsMeets 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 2,000 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) or ULSD blended with the following lower-carbon intensity fuels** up to: 20% biodiesel FAME (fatty acid methyl ester)* or 100% renewable diesel, HVO

Operating Weight48500lb

NoteLong 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.

Maximum Digging Depth22ft

BoomReach 5.7 m (18.8)

StickReach 2.9 m (9'6")

BucketGD 1.0 m³ (1.31 yd³)

Maximum Reach at Ground Level32.3ft

Maximum Cutting Height31ft

Maximum Loading Height21.3ft

Minimum Loading Height7.1ft

Maximum Depth Cut for 2440 mm (8 ft) Level Bottom21.6ft

Maximum Vertical Wall Digging Depth18.7ft

Bucket Digging Force - ISO28935lbf

Stick Digging Force - ISO22281lbf

Main System - Maximum Flow442 l/min (117 gal/min)

Maximum Pressure - Equipment5075psi

Maximum Pressure - Travel4974psi

Maximum Pressure - Swing3625psi

Swing Speed11.6r/min

Maximum Swing Torque54900ft·lbf

Fuel Tank Capacity86.6gal (US)

Cooling System6.6gal (US)

Engine Oil4gal (US)

Swing Drive - Each3.2gal (US)

Final Drive - Each1.1gal (US)

Hydraulic System - Including Tank61.8gal (US)

Hydraulic Tank30.4gal (US)

DEF Tank10.3gal (US)

BoomReach 5.7 m (18'8")

StickReach 2.9 m (9'6")

BucketGD 1.0 m³ (1.31 yd³)

Shipping Height - Top of Cab9.7ft

Handrail Height9.8ft

Shipping Length31.3ft

Tail Swing Radius9.3ft

Counterweight Clearance3.4ft

Ground Clearance1.5ft

Track Length14.7ft

Length to Center of Rollers11.11ft

Track Gauge7.9ft

Transport Width10.4ft

Air ConditioningThe 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).



Standard and optional equipment may vary. Consult your Cat dealer for details.


Standard and optional equipment may vary. Consult your Cat dealer for details.


5.7 m (18'8") Reach boom


2.9 m (9'6") Reach stick

2.5 m (8'2") Reach stick

2.9 m (9'6") Reach Bare stick


Rollover protective structure (ROPS)

Mechanical-suspension seat

High-resolution 203 mm (8 inch) LCD touchscreen monitor



Remote Flash


VisionLink Productivity


Two 1,000 CCA maintenance-free batteries

Centralized electrical disconnect switch

Programmable time-delay LED working lights

LED chassis light, boom lights, cab lights


Cat C4.4 single turbo engine

Two selectable power modes

Auto engine speed control

Auto engine idle shutdown

52° C (125° F) high-ambient cooling capacity

-32° C (-25° F) cold start capability

Double element air filter with integrated pre-cleaner

Reversible electric cooling fans


Boom and stick regeneration circuits

Boom and stick lowering check valves

Auto warm up

Auto two-speed travel

Boom and stick drift reduction valve

Slider joysticks

Tool control (two pumps, one/two way high-pressure flow)


SmartBoom (Europe only)


Auto hammer stop

Rearview and right-hand-sideview cameras

Ground-level engine shutoff switch

Lockable disconnect switch

Right-hand handrail and hand hold

Signaling/warning horn


Swing alarm

Inspection lighting


Scheduled Oil Sampling (S·O·S℠) ports

Ground-level and platform-level engine oil dipsticks

Integrated vehicle health management system


Long undercarriage (N Am, Europe, Turkey standard; Chile optional; Columbia not available)

Medium undercarriage (Colombia standard; Chile optional, N Am, Europe, Turkey not available)

Tie-down points on base frame

3700 kg (8,160 lb) counterweight (Chile, Colombia, Turkey only)

4200 kg (9,300 lb) counterweight (Europe, N Am only)


600 mm (24") triple grouser shoes

700 mm (28") triple grouser shoes

790 mm (31") triple grouser shoes

900 mm (35") triple grouser shoes


Narrow (Europe only)

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