Skip to main content Skip to navigation
AgAgriculture Blog IconBehind the Scenes Blog IconConstruction Blog IconEquipment Maintenance Blog IconPower Systems Blog IconThumbs Down Thumbs Up! Small Business Blog IconTachnology Blog IconConstructioncontrol-smallcost-smallefficiency-smallflexibility-smallHoursHours Location HoursMapMapMenu AgMenu AttachmentsMenu BlogMenu CareersMenu ChecklistMenu ConstructionMenu MaintenanceMenu NewMenu PowerMenu RebuildsMenu RentMenu ServiceMenu TechnologyMenu TestimonialsMenu TrainingMenu Truck Menu UsedNewArtboard 1Parts Phone PhonePower Systemsproductivity-smallRentalRepSafetyServiceSpecialsTechToolsTrainingTruckUsed

Ziegler CAT

320 GC Hydraulic Excavator

The Cat® 320 GC excavator balances productivity with easy-to-use technology features, a new comfortable cab, reduced fuel consumption by up to 20%, and longer maintenance intervals reducing maintenance costs by up to 15% to bring you a durable, low-cost-per-hour excavator for light- to medium-duty applications.

Brand: Caterpillar



  • 320 Family Introduction Video
  • Cat® Next Generation Excavators: Walkaround 320 Size Class
  • Cat® Next Generation Excavators: Vision
  • Cat® Next Generation Excavators: Manufacturing
  • Cat® Next Generation Excavators: Design

360° View


360° exterior view. Double click on the image to zoom in on any area of the product.


360° interior view. Double click on the image to zoom in on any area of the product.


  • Engine
    Engine Power - ISO 9249 121 HP
    Engine Model Cat C4.4
    Engine Power - ISO 14396 122 HP
    Bore 4 in
    Stroke 5 in
    Displacement 269 in³
  • Hydraulic System
    Main System - Maximum Flow 442 l/min (116 gal/min)
    Maximum Pressure - Equipment 5075 psi
    Maximum Pressure - Travel 4974 psi
    Maximum Pressure - Swing 3886 psi
  • Swing Mechanism
    Swing Speed 11.6 r/min
    Maximum Swing Torque 54435 ft·lbf
  • Weights
    Operating Weight 48281 lb
  • Service Refill Capacities
    Fuel Tank Capacity 86.6 gal (US)
    Cooling System 6.6 gal (US)
    Engine Oil 4 gal (US)
    Swing Drive - Each 1.3 gal (US)
    Final Drive - Each 1.3 gal (US)
    Hydraulic System - Including Tank 61.8 gal (US)
    Hydraulic Tank 30.4 gal (US)
    DEF Tank 10.3 gal (US)
  • Dimensions
    Boom Reach 5.7 m (18'8")
    Stick R2.9B1 (9'6")
    Bucket 1.00 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 10.7 ft
    Length to Center of Rollers 12 ft
    Track Gauge 7.2 ft
    Transport Width 10.4 ft
  • Working Ranges & Forces
    Maximum Digging Depth 22 ft
    Boom Reach 5.7 m (18.8)
    Stick R2.9B1 (9'6")
    Bucket 1.00 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