320 GC - Tier 4 / Stage V

Net Power - ISO 9249
146 hp / 109 kW
Operating Weight
48500 lb / 22000 kg
Maximum Digging Depth
22 ft / 6720 mm

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

Engine
Net Power - ISO 9249 146 hp / 109 kW
Net Power - ISO 9249 (DIN) 148 hp (metric)
Engine Model Cat® C4.4
Engine Power - ISO 14396:2002 148 hp / 110.1 kW
Engine Power - ISO 14396 (DIN) 150 hp (metric)
Bore 4 in / 105 mm
Stroke 5 in / 127 mm
Displacement 269 in³ / 4.4 l
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) 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 “Caterpillar Machine Fluids Recommendations” (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.
Hydraulic System
Main System - Maximum Flow 442 l/min (117 gal/min)
Maximum Pressure - Equipment 5075 psi / 35000 kPa
Maximum Pressure - Travel 4974 psi / 34300 kPa
Maximum Pressure - Swing 3625 psi / 25000 kPa
Swing Mechanism
Swing Speed 11.6 r/min
Note (1) For CE-marked machine default value may be set lower.
Maximum Swing Torque 54900 lbf·ft / 74.4 kN·m
Weights
Operating Weight 48500 lb / 22000 kg
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.
Service Refill Capacities
Fuel Tank Capacity 86.6 gal (US) / 345 l
Cooling System 6.6 gal (US) / 25 l
Engine Oil 4 gal (US) / 15 l
Swing Drive - Each 3.2 gal (US) / 12 l
Final Drive - Each 1.1 gal (US) / 4 l
Hydraulic System - Including Tank 61.8 gal (US) / 234 l
Hydraulic Tank 30.4 gal (US) / 115 l
DEF Tank 10.3 gal (US) / 39 l
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 9.7 ft / 2960 mm
Handrail Height 9.8 ft / 2950 mm
Shipping Length 31.3 ft / 9530 mm
Tail Swing Radius 9.3 ft / 2830 mm
Counterweight Clearance 3.4 ft / 1050 mm
Ground Clearance 1.5 ft / 470 mm
Track Length 14.7 ft / 4450 mm
Length to Center of Rollers 11.11 ft / 3650 mm
Track Gauge 7.9 ft / 2380 mm
Transport Width 10.4 ft / 3170 mm
Working Ranges and Forces
Maximum Digging Depth 22 ft / 6720 mm
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 / 9860 mm
Maximum Cutting Height 31 ft / 9450 mm
Maximum Loading Height 21.3 ft / 6490 mm
Minimum Loading Height 7.1 ft / 2170 mm
Maximum Depth Cut for 2440 mm (8 ft) Level Bottom 21.6 ft / 6550 mm
Maximum Vertical Wall Digging Depth 18.7 ft / 5690 mm
Bucket Digging Force - ISO 28935 lbf / 129 kN
Stick Digging Force - ISO 22281 lbf / 99 kN
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).
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)
  • CAT TECHNOLOGY
    • VisionLink Productivity
  • 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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