320 GC Hydraulic Excavator

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.

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Engine

Net Power - ISO 9249

146hp

Net Power - ISO 9249 (DIN)

148hp (metric)

Engine Model

Cat® C4.4

Engine Power - ISO 14396

148hp

Engine Power - ISO 14396 (DIN)

150hp (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

Weights

Operating Weight

48500lb

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.

Working Ranges and Forces

Maximum Digging Depth

22ft

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

32.3ft

Maximum Cutting Height

31ft

Maximum Loading Height

21.3ft

Minimum Loading Height

7.1ft

Maximum Depth Cut for 2440 mm (8 ft) Level Bottom

21.6ft

Maximum Vertical Wall Digging Depth

18.7ft

Bucket Digging Force - ISO

28935lbf

Stick Digging Force - ISO

22281lbf

Hydraulic System

Main System - Maximum Flow

442 l/min (117 gal/min)

Maximum Pressure - Equipment

5075psi

Maximum Pressure - Travel

4974psi

Maximum Pressure - Swing

3625psi

Swing Mechanism

Swing Speed*

11.6r/min

Maximum Swing Torque

54900lbf·ft

Note (1)

*For CE-marked machine default value may be set lower.

Service Refill Capacities

Fuel Tank Capacity

91.1gal (US)

Cooling System

6.6gal (US)

Engine Oil

4gal (US)

Swing Drive

3.2gal (US)

Final Drive - Each

1.1gal (US)

Hydraulic System - Including Tank

61.8gal (US)

Hydraulic Tank

30.4gal (US)

DEF Tank

10.3gal (US)

Dimensions

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

9.7ft

Handrail Height

9.8ft

Shipping Length

31.3ft

Tail Swing Radius

9.3ft

Counterweight Clearance

3.4ft

Ground Clearance

1.5ft

Track Length

14.7ft

Length to Center of Rollers

11.11ft

Track Gauge

7.9ft

Transport Width

10.4ft

Air Conditioning System

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

Sustainability

Recyclability

97%

Standard Equipment:

Note
- Standard and optional equipment may vary. Consult your Cat^® dealer for details.
Boom And Sticks
- 5.7 m (18'8") Reach boom
Cab
- Air-suspension seat (Europe, North America only)
- Mechanical-suspension seat (Chile, Colombia, Türkiye only)
- Rollover Protective Structure (ROPS)
- High-resolution 203 mm (8 inch) LCD touchscreen monitor
Cat Technology
- VisionLink^™
- Remote Flash
Electrical
- Two 1,000 CCA maintenance-free batteries
- Centralized electrical disconnect switch
- Programmable time-delay LED working lights
- LED chassis light, boom lights, cab lights
Engine
- 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
Hydraulic System
- 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)
Safety And Security
- Rearview and right-hand-sideview cameras
- Ground-level engine shutoff switch
- Lockable disconnect switch
- Right-hand handrail and hand hold
- Signaling/warning horn
Service And Maintenance
- Scheduled Oil Sampling (S·O·S℠) ports
- Ground-level and platform-level engine oil dipsticks
- Integrated vehicle health management system
Undercarriage And Structures
- Long undercarriage (Europe, North America, Türkiye standard; Chile optional; Columbia not available)
- Medium undercarriage (Colombia standard; Chile optional; Europe, North America, Türkiye not available)
- Tie-down points on base frame
- 3700 kg (8,160 lb) counterweight (Chile, Colombia, Türkiye only)
- 4200 kg (9,300 lb) counterweight (Europe, North America only)

Optional Equipment:

Note
- Standard and optional equipment may vary. Consult your Cat^® dealer for details.
Boom And Sticks
- 2.9 m (9'6") Reach stick
- 2.5 m (8'2") Reach stick
- 2.9 m (9'6") Reach Bare stick
Cab
- Operator Protective Guards (OPG)
Hydraulic System
- SmartBoom^™ (Europe only)
Safety And Security
- Swing alarm
- Inspection lighting
Service And Maintenance
- Refueling pump
- QuickEvac^™ maintenance ready
Undercarriage And Structures
- 600 mm (24") triple grouser shoes
- 700 mm (28") triple grouser shoes
- 790 mm (31") triple grouser shoes
- 900 mm (35") triple grouser shoes
Other Optional Configurations
- Narrow (Europe only)

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