Skip to main content Skip to navigation
AgAgriculture Blog IconBehind the Scenes Blog IconConstruction Blog IconEquipment Maintenance Blog IconPower Systems Blog Icon Thumbs 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 Training Menu Truck Menu UsedNewArtboard 1Parts Phone PhonePower Systemsproductivity-smallRentalRepSafetyServiceSpecialsTechtestimonial-iconToolsTrainingTruckUsed

Ziegler CAT

Caterpillar

320 GC Hydraulic Excavator

Engine Power - ISO 9249

121 HP

Operating Weight

48281 lb

Maximum Digging Depth

22 ft

Overview

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 20% to bring you a durable, low-cost-per-hour excavator for light- to medium-duty applications.

Photos

Videos

  • 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

Exterior

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

Interior

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

Showroom

Virtual Product Tour. Double click on the hotspots to see in on any area of the product.

Features

Specifications

  • Engine
    Spec Value
    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
    Spec Value
    Main System - Maximum Flow 442 l/min (116 gal/min)
    Maximum Pressure - Equipment 5075 psi
    Maximum Pressure - Travel 4974 psi
    Maximum Pressure - Swing 3625 psi
  • Swing Mechanism
    Spec Value
    Swing Speed 11.6 r/min
    Maximum Swing Torque 54900 ft·lbf
  • Weights
    Spec Value
    Operating Weight 48281 lb
  • Service Refill Capacities
    Spec Value
    Fuel Tank Capacity 86.6 gal (US)
    Cooling System 6.6 gal (US)
    Engine Oil 4 gal (US)
    Swing Drive - Each 3.2 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
    Spec Value
    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
    Spec Value
    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

Standard Equipment

ENGINE

  • Cat C4.4 electronically-controlled turbo-charged Tier 4 Final diesel engine
  • Meets U.S. EPA Tier 4 Final and EU Stage IV emissions standards.
  • Two selectable power modes
  • One-touch low idle with automatic engine speed control
  • Automatic engine idle shutdown
  • Recommended for use up to 4500 m altitude (14,764 ft) with engine power derate above 3000 m (9,842.5 ft).
  • 52° C (125° F) high-ambient cooling capacity
  • Cold starting capability for - 32° C (- 25° F)
  • Double element air filter with integrated pre-cleaner
  • Electric fuel priming pump
  • Reversible electric cooling fans
  • Biodiesel capability up to B20

HYDRAULIC SYSTEM

  • Boom and stick regeneration circuits
  • Electronic main control valve
  • Auto warm up
  • Automatic two-speed travel
  • Boom and stick drift reduction valve
  • Element type main hydraulic filter
  • 3 Buttons Joysticks
  • Electronic main pump
  • Electric refueling pump(Europe only)

STANDARD COMFORT CAB

  • ROPS, standard sound suppression
  • High-resolution 8" (203 mm) LCD touchscreen monitor
  • Automatic Bi-level air conditioner
  • Jog dial and shortcut keys for monitor control
  • Keyless push-to-start engine control
  • Height-adjustable console, 3-steps with tool
  • Mechanically adjustable seat suspension
  • Seat belt, retractable (51 mm [2"] width)
  • Fixed left side console
  • Bluetooth® integrated radio with USB ports
  • 12V DC outlets
  • Document storage
  • Cup and bottle holders
  • Two-piece front window, openable
  • Steel hatch, openable
  • Upper radial wiper with 70/30 w/washer
  • LED dome and lower interior lights
  • Roller front sunscreen
  • Beacon ready
  • Washable floor mat
  • Straight travel pedal (US Only)

UNDERCARRIAGE AND STRUCTURES

  • Tiedown points on base frame (ISO 15818 Compliant)
  • Standard bottom guards
  • Standard travel motor guards
  • Grease lubricated track links
  • 4200 kg (9,260lb) counterweight
  • Standard swing frame
  • Standard swing bearing
  • Base frame with standard track rollers and standard carrier rollers
  • Final drive with standard travel motor

ELECTRICAL

  • Machine electronic control module (x2)
  • 1000 CCA maintenance-free batteries (x2)
  • Centralized electrical disconnect switch
  • Programmable time-delay LED working lights
  • LED chassis light, LH boom light for reach-850 lumens

BOOM, STICKS AND LINKAGES

  • 5.7 m (18'8") reach boom
  • 2.9 m (9'6") stick
  • 790 mm (31" ) triple grouser track shoes
  • Bucket linkage, B1-family with lifting eye

SAFETY & SECURITY

  • Rearview camera and side RH mirror
  • Rear and right hand sideview camera (Europe)
  • Neutral lever (lock out) for all controls
  • Anti-skid plate and countersunk bolts on service platform
  • Ground-level accessible secondary engine shutoff switch in cab
  • RH hand rail and hand hold (ISO 2867 compliant)
  • Travel alarm (US only)

SERVICE & MAINTENANCE

  • Sampling ports for Scheduled Oil Sampling (S·O·S℠)
  • Grouped location for engine oil and fuel filters
  • Ground level 2nd dipstick for engine oil
  • Remote flash

CAT TECHNOLOGY

  • Cat Product Link™
  • Auto Hammer Stop

Optional Equipment

HYDRAULIC SYSTEM

  • Hammer return filter circuit
  • Combined flow/high pressure aux circuit
  • Simplified combined Circuit (2 Way)
  • Quick coupler circuit for Cat Pin Grabber
  • Slider joysticks
  • Smart boom (Europe only)

ELECTRICAL SYSTEM

  • LED chassis light, LH & RH boom lights for reach, cab lights- 850 lumens

STANDARD COMFORT CAB

  • Roller rear suncreen

SAFETY & SECURITY

  • Radiator screen
  • RH side mirror for use with RH sideview camera or 360° visibility (Europe)

BUCKET

  • Heavy duty buckets 1.0m³ (1.31yd³)