320 GX – Tier 3

320 GX Hydraulic Excavator

Introducing the 320 GX – our economy model with all the reliability and ease of operation you expect from a Cat® excavator, with easy maintenance and lower cost features designed to give you a faster return on your equipment investment.

Latest Features

Cab Monitor Improvements 

        

  • Continuously improved user interface allows for intuitive navigation, minimizing performance interruption with the easy-to-use touchscreen menu.
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  • Identify apps quickly with a grid list view, abbreviated app names, and categorized menu options.
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  • A notification center keeps important information visible to the operator, and displays messages without shrinking the camera view.
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  • Color coded notifications set critical messages apart from the rest.
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  • Use the in-monitor QR code to learn about machine and technology features through a full suite of “how-to” videos.

Not all features are available in all regions. Please check with your local Cat dealer for specific offering availability in your area. 
Build Number: 05E

Easy to Operate

        

  • The machine’s electrohydraulic system allows accurate bucket control for maximum precision.
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  • Start the engine with a push button.
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  • Navigate quickly on the high-resolution 203 mm (8 in) touchscreen monitor
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  • Control the excavator comfortably with easy-to-reach controls all located in front of you.
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  • Program your preferences for power mode, joystick pattern, and joystick response using Operator ID. The excavator will automatically remember your selections.

Easy to Maintain

        

  • Do daily maintenance at ground level.
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  • Up to 20% less maintenance cost than the 320D2 GC due to enhanced filters and extended and synchronized service intervals (savings calculated over 12,000 machine hours).
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  • The air intake filter with precleaner has double the dust holding capacity of the previous air intake filter. Final drive and swing drive oil is double the initial service life – from 250 to 500 hours.
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  • Fuel filters are synchronized to be changed at 1,000 hours – double the interval from the previous filters.
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  • The hydraulic oil filter provides improved filtration performance, anti-drain valves to keep oil clean when the filter is
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  • replaced, and longer life with a 3,000-hour replacement interval – 50% longer than previous filter designs.
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  • Grease sealed between track pins and bushings reduces travel noise and prevents debris from entering to help increase undercarriage life.
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  • Auto warm up speeds up hydraulic oil warming in cold temperatures and helps prolong the life of components.
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  • Advansys™ bucket tips increase penetration and improve cycle times. Tip changes can be done quickly with a simple lug wrench instead of a hammer or special tool, improving safety and uptime.
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  • S·O·SSM oil sampling ports are on ground level, simplifying maintenance and allowing for quick, easy extraction of fluid samples for analysis.

Low Owning and Operating Costs

        

  • The excavator uses up to 15% less fuel than the 320D2 GC in similar applications.
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  • Match the excavator to the job with a choice of two modes: Power and Smart. Power mode provides full-time maximum output. Smart mode automatically matches engine and hydraulic power to digging conditions to help conserve fuel without impacting production.
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  • Save fuel with Automatic Engine Control (AEC). It reduces engine speed when the machine is not under load to minimize fuel consumption.

Reliable Performance

        

  • A versatile machine that performs well in bucket and hammer applications.
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  • Booms and sticks are robotically welded and checked ultrasonically to ensure maximum durability.
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  • Reliable and durable and built on classic, proven components.
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  • The Cat C4.4 engine and electrohydraulic system work in sync to help you move plenty of material while using less fuel.
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  • Fast cycle times give you excellent productivity.
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  • A hammer-ready valve is standard for added versatility.
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  • Two levels of fuel filtration protect the engine from contaminated diesel fuel.
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  • Cat undercarriage is built strong to absorb jobsite stresses for enhanced performance and durability.
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  • General duty buckets are designed for fast material discharge and cleaning.
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  • Work up to 4500 m (14,760 ft) above sea level with engine power derate above 3000 m (9,840 ft).
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  • Standard high-ambient temperature capability is 52°C (125°F) with cold start capability at -25°C (-13°F).

Work in Comfort

        

  • The cab has a wide seat that adjusts to suit individual operator preferences.
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  • Standard automatic climate control helps keep you comfortable all shift long.
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  • Excellent work site visibility from the cab enhances productivity and safety.
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  • Optimized low-effort joystick controls reduce operator fatigue.
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  • Convenience features include a radio, auxiliary port for headphones, and a USB port for connecting and charging devices; a 24V DC outlet makes phone charging even faster.
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  • Use the radio’s Bluetooth® technology to make hands-free calls.
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  • The cup holder and storage space in front of the controls can hold large cups and wide cell phones; storage behind the seat can hold a large lunchbox and other items.

Enhanced Safety

        

  • Access daily maintenance points from ground level with the exception of the engine oil level – no need to climb on top of the excavator to check filters or grease linkage.
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  • An optional ISO certified Rollover Protective Structure (ROPS) cab is offered in some regions to help protect the operator in the event of a rollover.
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  • Enjoy great visibility into the trench, in each swing direction, and behind you with the help of smaller cab posts and larger windows.
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  • An optional rearview camera enhances visibility.
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  • Anti-skid plating on the service platform helps prevent slipping.
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  • The handrails meet ISO 2867:2011 requirements for added safety.
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  • Keep your excavator secure with Operator ID. Use your PIN code on the monitor to enable the push button starting feature.
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  • Enhance jobsite safety. Add a swing alarm to alert people when you're rotating from trench to stockpile and back again.

Standard Equipment

NOTE
  • Standard and optional equipment may vary. Consult your Cat dealer for details.
BOOMS AND STICKS
  • 5.7 m (18'8") Reach boom
CAB
  • Sound suppressed with viscous mounts
  • High-resolution 203 mm (8") LCD touch screen monitor
  • Mechanically adjustable seat with headrest and armrest
  • 51 mm (2") orange seat belt
  • Auto bi-level air conditioner
  • Keyless push-to-start engine control
  • Fixed left-side console
  • 1 button joysticks
  • Bluetooth® radio with USB/Aux ports
  • 24V DC outlet
  • Cup holder and storage compartments
  • 70/30 tempered glass windshield
  • Rear window emergency exit
  • Upper radial wiper with washer
  • Openable steel hatch
  • LED Dome light
  • Washable floor mat
CAT TECHNOLOGY
  • VisionLink®
  • Capability to Remote Flash Cat Product Link™ (telematics only)
ELECTRICAL SYSTEM
  • Maintenance-free 950 CCA batteries (x2)
  • Electrical disconnect switch
  • LED chassis and cab lights
  • LED left-side boom light
ENGINE
  • Cat C4.4 single turbo diesel engine
  • Two selectable modes: Power, Smart
  • Up to 4500 m (14,760 ft) altitude capability
  • 52°C (125° F) high-ambient cooling capacity
  • -25°C (-13° F) cold start capability
  • Electric fuel priming pump
  • Two-stage fuel filtration system
  • Sealed double element air filter with integrated pre-cleaner
HYDRAULIC SYSTEM
  • Electronic main control valve, hammer ready
  • Back-to-back electronic pumps
  • Boom and stick regeneration circuits
  • Automatic hydraulic oil warmup
  • Automatic two-speed travel
  • High performance hydraulic return filter
SAFETY AND SECURITY
  • Anti-skid plating with countersunk bolts
  • Handrail and hand hold
  • Lockable external tool/storage box
  • Signaling/warning horn
  • Hydraulic lockout lever
  • Lockable disconnect switch
SERVICE AND MAINTENANCE
  • Grouped engine oil and fuel filters
  • Scheduled Oil Sampling (S·O·S℠) ports
UNDERCARRIAGE AND STRUCTURES
  • Grease lubricated track link
  • Center track guiding guard
  • Bottom guards
  • Travel motor guards
  • 3600 kg (7,940 lb) counterweight
  • Tie-down points

Additional information

Offering Type

, ,

Engine - Net Power - ISO 9249

103.6 kW ( 139 HP )

Engine - Net Power - ISO 9249 (DIN)

141 hp (metric) ( 141 hp (metric) )

Engine Model

Cat C4.4

Engine Power - ISO 14396

108 kW ( 145 HP )

Engine Power - ISO 14396 (DIN)

147 hp (metric) ( 147 hp (metric) )

Engine - Bore

105 mm ( 4 in )

Engine - Stroke

127 mm ( 5 in )

Engine - Displacement

4.4 l ( 269 in³ )

Engine - Biodiesel Capability

Up to B20¹

Engine - Emissions

Emits equivalent to U.S. EPA Tier 3 and EU Stage IIIA.

Hydraulic System - Main System - Maximum Flow - Implement

429 l/min ( 113.4 gal/min )

Hydraulic System - Maximum Pressure - Equipment

35000 kPa ( 5075 psi )

Hydraulic System - Maximum Pressure - Travel

35000 kPa ( 5075 psi )

Hydraulic System - Maximum Pressure - Swing

25000 kPa ( 3626 psi )

Swing Mechanism - Swing Speed

11.07 r/min ( 11.07 r/min )

Swing Mechanism - Maximum Swing Torque

74 kN·m ( 54875 ft·lbf )

Weights - Operating Weight

20500 kg ( 45300 lb )

Service Refill Capacities - Fuel Tank Capacity

390 l ( 103 gal (US) )

Service Refill Capacities - Cooling System

24.5 l ( 6.5 gal (US) )

Service Refill Capacities - Engine Oil

15 l ( 4 gal (US) )

Service Refill Capacities - Swing Drive

5.5 l ( 1.5 gal (US) )

Service Refill Capacities - Final Drive - Each

4.5 l ( 1.2 gal (US) )

Service Refill Capacities - Hydraulic System - Including Tank

218 l ( 57.6 gal (US) )

Service Refill Capacities - Hydraulic Tank

115 l ( 30.4 gal (US) )

Dimensions - Boom

Reach 5.7 m (18'8")

Dimensions - Stick

Reach 2.7 m (8'10")

Dimensions - Bucket

GD 0.93 m³ (1.22 yd³)

Dimensions - Shipping Height - Top of Cab

2970 mm ( 9.9 ft )

Dimensions - Handrail Height

3010 mm ( 9.11 ft )

Dimensions - Shipping Length

9570 mm ( 31.5 ft )

Dimensions - Tail Swing Radius

2830 mm ( 9.3 ft )

Dimensions - Counterweight Clearance

1040 mm ( 3.5 ft )

Dimensions - Ground Clearance

460 mm ( 1.6 ft )

Dimensions - Track Length

4080 mm ( 13.5 ft )

Dimensions - Track Length to Center of Rollers

3270 mm ( 10.9 ft )

Dimensions - Track Gauge

2200 mm ( 7.3 ft )

Dimensions - Transport Width

2990 mm ( 9.9 ft )

Working Ranges & Forces - Maximum Digging Depth

6430 mm ( 21.1 ft )

Working Ranges & Forces - Boom

Reach 5.7 m (18'8")

Working Ranges & Forces - Stick

Reach 2.7 m (8'10")

Working Ranges & Forces - Bucket

GD 0.93 m³ (1.22 yd³)

Working Ranges & Forces - Maximum Reach at Ground Level

9580 mm ( 31.5 ft )

Working Ranges & Forces - Maximum Cutting Height

9290 mm ( 30.6 ft )

Working Ranges & Forces - Maximum Loading Height

6450 mm ( 21.1 ft )

Working Ranges & Forces - Minimum Loading Height

2460 mm ( 8.1 ft )

Working Ranges & Forces - Maximum Depth Cut for 2440 mm (8 ft) Level Bottom

6250 mm ( 20.6 ft )

Working Ranges & Forces - Maximum Vertical Wall Digging Depth

5510 mm ( 18.1 ft )

Working Ranges & Forces - Bucket Digging Force - ISO

136 kN ( 30597 ft·lbf )

Working Ranges & Forces - Stick Digging Force - ISO

106 kN ( 23897 ft·lbf )

Weights - Note

Reach boom, R2.7 (8'9") stick, General Duty (GD) 0.93 m³ (1.22 yd³) bucket, 790 mm (31") triple grouser shoes, and 3600 kg (7,940 lb) counterweight.

  • Vibratory Plate Compactors

    CVP110

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  • GC Hammers

    H120 GC S

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  • GC Hammers

    H130 GC

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  • Pin Grabber Couplers

    Pin Grabber Coupler (B-Linkage): 455-3909

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  • Pin Grabber Couplers

    Pin Grabber Coupler (B-Linkage): 455-3910

    View Details
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