320 GX
KEY SPECS
- Net Power - ISO 9249 103.6kW
- Net Power - ISO 9249 (DIN) 141hp (metric)
- Engine Model Cat® C4.4
OVERVIEW
BENEFITS
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Easy to Own and Operate
- Stable and responsive design built on classic, proven components for easy operation and excellent reliability.
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Fast Payback
- Low owning costs, maintenance costs, and fuel consumption means more money in your pocket.
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Low Fuel Consumption
- Smart mode and synchronized engine and electrohydraulic control give you competitive performance with low fuel consumption.
FEATURES AT A GLANCE
Latest Features
Cab Monitor Improvements
- Continuously improved user interface allows for intuitive navigation, minimizing performance interruption with the easy-to-use touchscreen menu.
- Smaller app tiles to view more apps in one screen.
- When navigating the menu, scroll position will be remembered.
- While menu is shown and lever is moved, camera view will be shown.
- 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: 05F
Easy to Operate
- Start the engine with a push button.
- The machine’s electrohydraulic system allows accurate bucket control for maximum precision.
- Navigate quickly on the high-resolution 203 mm (8 in) touchscreen monitor.
- Continuously improved user interface allows for intuitive navigation, minimizing performance interruption with the easy-to-use touchscreen menu
- Use the in-monitor QR code to learn about machine and technology features through a full suite of “how-to” videos.
- Control the excavator comfortably with easy-to-reach controls all located in front of you.
- Program your preferences for power mode, joystick pattern, and joystick response using Operator ID. The excavator will automatically remember your selections.
Easy to Maintain
- Daily maintenance inspections at ground level, longer filter lifespan, and extended and synchronized service intervals help to reduce maintenance costs.
- The latest air intake filter with pre-cleaner 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.
- Fuel filters are synchronized to be changed at 1,000 hours - keeping your machine on the job for longer periods of time.
- The hydraulic oil filter provides high filtration performance, anti-drain valves to keep oil clean when the filter is replaced, and longer life with a 3,000 hour replacement interval.
- Grease sealed between track pins and bushings reduces travel noise and prevents debris from entering to help increase undercarriage life.
- Auto warm up speeds up hydraulic oil warming in cold temperatures and helps prolong the life of components.
- 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.
- 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 consumes less fuel in comparison to the 320D2 GC in similar applications.
- 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.
- 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.
- Booms and sticks are robotically welded and checked ultrasonically to ensure maximum durability.
- Reliable and durable and built on classic, proven components.
- The Cat® C4.4 engine and electrohydraulic system work in sync to help you move plenty of material while using less fuel.
- Fast cycle times give you excellent productivity.
- A hammer-ready valve is standard for added versatility.
- Two levels of fuel filtration protect the engine from contaminated diesel fuel.
- Cat undercarriage is built strong to absorb jobsite stresses for enhanced performance and durability.
- General duty buckets are designed for fast material discharge and cleaning.
- Work up to 4500 m (14,760 ft) above sea level with engine power derate above 3000 m (9,840 ft).
- 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.
- Standard automatic climate control helps keep you comfortable all shift long.
- Excellent work site visibility from the cab enhances productivity and safety.
- Optimized low-effort joystick controls reduce operator fatigue.
- 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.
- Use the radio’s Bluetooth® technology to make hands-free calls.
- 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 inspection 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.
- 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.
- Enjoy great visibility into the trench, in each swing direction, and behind you with the help of smaller cab posts and larger windows.
- An optional rearview camera enhances visibility.
- Anti-skid plating on the service platform helps prevent slipping.
- The handrails meet ISO 2867:2011 requirements for added safety.
- Keep your excavator secure with Operator ID. Use your PIN code on the monitor to enable the push button starting feature.
- Enhance jobsite safety. Add a swing alarm to alert people when you're rotating from trench to stockpile and back again.
Attachments
Tackle your jobs with a complete Cat® solution. Cat attachments are not just accessories – they are essential tools that define what your machine can do. When you pair a Cat excavator with Cat attachments, you unlock a fully integrated system built for performance, durability, and efficiency. Whether you are clearing land, breaking concrete, or compacting soil, the right attachment transforms your excavator into a powerful, multi-purpose tool ready for any challenge. Depending on your project or application, you could benefit from excavator attachments such as:
- Buckets: Handle everything from digging and grading to cleanup and debris removal with your excavator. Caterpillar® offers general duty, heavy duty, extreme duty, and severe duty buckets, as well as specialized designs for ditch cleaning, rock, and finishing work. Reinforced edges and wear-resistant materials ensure long-lasting performance in tough conditions.
- Pin Grabber: Offer fast, secure attachment changes and are compatible with a wide range of tools. Ideal for operators who need flexibility on the job site, they allow switching between buckets, hammers, and grapples. Features a redundant locking system to keep your attachments in place and protect them from damage.
- Performance Hammers: Built for high-demand applications, performance hammers deliver maximum impact energy and fast cycle times for breaking concrete, rock, and asphalt. Ideal for heavy-duty demolition, quarrying, and production environments where speed and power are critical.
- GC Hammers: Cat® GC hammers offer reliable performance for everyday breaking tasks at a lower operating cost. A versatile solution for many applications, including road construction, trenching and demolition, while balancing power and efficiency for general contractors.
- GC S Hammers: Simplified, silenced models designed for noise-sensitive environments. They maintain solid performance while reducing sound levels, making them ideal for urban job sites, residential areas, and regulated zones. Ideal for site prep, light demolition, foundry and quarry applications.
Cat® attachments are engineered to maximize your excavator’s productivity, helping you get more work done with greater efficiency and confidence. Choosing the right attachment is not just about compatibility, it is about unlocking your machine’s full potential while avoiding equipment damage or safety risks. Connect with your Cat Dealer to find the optimal attachments for your specific machine and application needs.
Please note: Not all attachments are available in all regions. Contact your Cat Dealer for details.
SPECIFICATIONS
- Net Power - ISO 9249 103.6kW
- Net Power - ISO 9249 (DIN) 141hp (metric)
- Engine Model Cat® C4.4
- Engine Power - ISO 14396 108kW
- Engine Power - ISO 14396 (DIN) 147hp (metric)
- Bore 105mm
- Stroke 127mm
- Displacement 4.4l
- Biodiesel Capability Up to B20¹
- Emissions Meets UN ECE R96 Stage IIIA emission standards, equivalent to U.S. EPA Tier 3 and EU Stage IIIA.
- 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 2,000 rpm. Advertised power is tested per the specified standard in effect at the time of manufacture.
- Note (2) ¹Cat engines are compatible with diesel fuel blended with the following lower-carbon intensity fuels** up to: 100% 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. *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.
- Main System - Maximum Flow - Implement 429L/min
- Maximum Pressure - Equipment 35000kPa
- Maximum Pressure - Travel 35000kPa
- Maximum Pressure - Swing 25000kPa
- Swing Speed* 11.07r/min
- Maximum Swing Torque 74kN·m
- Note (1) *For CE-marked machine default value may be set lower.
- Operating Weight 20400kg
- 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.
- Fuel Tank Capacity 390l
- Cooling System 24.5l
- Engine Oil 15l
- Swing Drive 5.5l
- Final Drive - Each 4.5l
- Hydraulic System - Including Tank 218l
- Hydraulic Tank 115l
- Boom Reach 5.7 m (18'8")
- Stick Reach 2.7 m (8'10")
- Bucket GD 0.93 m³ (1.22 yd³)
- Shipping Height - Top of Cab 2960mm
- Handrail Height 3010mm
- Shipping Length 9570mm
- Tail Swing Radius 2830mm
- Counterweight Clearance 1040mm
- Ground Clearance 460mm
- Track Length 4080mm
- Track Length to Center of Rollers 3270mm
- Track Gauge 2200mm
- Transport Width 2990mm
- Maximum Digging Depth 6430mm
- Boom Reach 5.7 m (18'8")
- Stick Reach 2.7 m (8'10")
- Bucket GD 0.93 m³ (1.22 yd³)
- Maximum Reach at Ground Level 9580mm
- Maximum Cutting Height 9290mm
- Maximum Loading Height 6450mm
- Minimum Loading Height 2460mm
- Maximum Depth Cut for 2440 mm (8 ft) Level Bottom 6250mm
- Maximum Vertical Wall Digging Depth 5510mm
- Bucket Digging Force - ISO 136kN
- Stick Digging Force - ISO 106kN
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