320 GC

320 GC Hydraulic Excavator

Cat® 320 GC hydraulic trackhoe excavators offer the ideal balance of control, digging, trenching, and lifting capacity all at lower hourly operating costs.

320 GC

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.

Net Power - ISO 9249

146 hp / 109 kW

Maximum Digging Depth

22 ft / 6720 mm
  • Specifications
  • Standard / Optional Features
  • Overview
    • Long Name -320 GC Hydraulic Excavator
    • Name -320 GC
    • Brand -Caterpillar
    • Status -Current
  • Engine
    • Net Power - ISO 9249 - 146 hp / 109 kW
    • Net Power - ISO 9249 (DIN) - 148 hp (metric) / 148 hp (metric)
    • Engine Model - Cat® C4.4
    • Engine Power - ISO 14396 - 148 hp / 110.1 kW
    • Engine Power - ISO 14396 (DIN) - 150 hp (metric) / 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) 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).
  • 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 / 11.6 r/min
    • Maximum Swing Torque - 54900 lbf·ft / 74.4 kN·m
    • Note (1) - *For CE-marked machine default value may be set lower.
  • 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 - 91.1 gal (US) / 345 l
    • Cooling System - 6.6 gal (US) / 25 l
    • Engine Oil - 4 gal (US) / 15 l
    • Swing Drive - 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 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).
  • 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