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320 - Tier 3 Medium Excavators

The Cat® 320 raises the bar for efficiency and fuel economy in this size class. With the industry’s highest level of standard factory technology, an ergonomic cab focused on operator comfort and productivity, plus lower fuel and maintenance costs, the 320 will set a new pace for productivity and profit in your operation.

320 - Tier 3

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

Net Power - ISO 9249
157 hp
Operating Weight
47000 lb
Maximum Digging Depth
22 ft
Net Power - ISO 9249 (DIN)
159 hp (metric)
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  • Specifications
  • Features
  • Standard Equipment

Specifications

Engine specifications
Net Power - ISO 9249 117 kW
Net Power - ISO 9249 (DIN) 159 hp (metric)
Engine Model Cat C7.1
Engine Power - ISO 14396 118 kW
Engine Power - ISO 14396 (DIN) 160 hp (metric)
Bore 105 mm
Stroke 135 mm
Displacement 7.01 l
Biodiesel Capability Up to B20¹
Emissions Meets Brazil MAR-1 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 1,800 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.

Features

LATEST FEATURES

        
  • Cab Monitor Improvements.
        
  1. Continuously improved user interface allows for intuitive navigation, minimizing performance interruption with the easy-to-use touchscreen menu.
    2.     
  2. Identify apps quickly with a grid list view, abbreviated app names, and categorized menu options.
    3.     
  3. A notification center keeps important information visible to the operator, and displays messages without shrinking the camera view.
    4.     
  4. Color coded notifications set critical messages apart from the rest.
    5.     
  5. Use the in-monitor QR code to learn about machine and technology features through a full suite of “how-to” videos.
        
  • Operator Coaching -Empower Operators. Exceed Targets.  
        
  1. Operator Coaching is an in-cab system that recognizes specific opportunities for operators to be more productive and prevent unnecessary machine wear and tear.  
    2.     
  2. After detecting inefficient or restricted actions, the system alerts the operator and provides insight into the inefficiency and steps to improve. 
    3.     
  3. Paired with a VisionLink® Productivity subscription, this information and other Operator Coaching insights can be viewed from anywhere.

Not all features are available in all regions. Please check with your local Cat dealer for specific offering availability in your area. Build Number: 07G

DO MORE WITH LESS FUEL

        
  • Use up to 20% less fuel than the Cat 320D2 excavator.
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  • Increase operating efficiency up to 45% with standard Cat technologies that lower operator fatigue and your operating costs, including fuel consumption and daily maintenance.
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  • The C7.1 engine can run on biodiesel up to B20 and meets Brazil Mar-1 equivalent emission standards.
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  • The advanced hydraulic system provides the optimum balance of power and efficiency while giving you the control you need for precise digging requirements.
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  • Match the excavator to the job with power modes; let Smart mode automatically match engine and hydraulic power to your digging conditions.
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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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  • Auxiliary hydraulic options give you the versatility to use a wide range of Cat attachments.
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  • Don’t let the temperature stop you from working. The excavator has a standard high-ambient temperature capability of 52° C (125°F) and cold start capability of –18° C (0° F). An optional –32°C (–25° F) cold start package is available.

EFFICIENCY THROUGH TECHNOLOGY

        
  • Boost productivity up to 45% versus traditional grading with standard Cat Grade with 2D system – includes indicate-only and laser capability.
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  • Cat Payload helps you achieve precise load targets to improve your operating efficiency. Pick up a load of material--with a bucket and thumb combination or grapple and clamshell attachments--and get a real-time weight estimate without swinging.
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  • Combine Payload with VisionLink® and remotely manage your production targets.
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  • Want a 3D system to improve your digging results? Caterpillar's single antenna global navigation satellite system (GNSS) makes it easy by giving you visual and auditory guidance to grade. Plus, you can create and edit designs on the touchscreen monitor while you’re on the job. If your application calls for a dual antenna system, it’s easy to upgrade.
    •     
  • Upgrade to our dual antenna GNSS for maximum grading efficiency. The system lets you create and edit designs on the touchscreen monitor while you’re on the job, or you can have the plan design sent to the excavator to make your work easier. Plus, you get added benefits of avoidance zones, cut and fill mapping, lane guidance, and augmented reality along with advanced positioning capability.
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  • Already invested in another brand’s 3D system? No problem. Standard Cat technology like Grade with 2D can readily integrate with that system to give you the precise results you need.
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  • Standard Grade Assist helps you stay on grade – simply and effortlessly – with single-lever digging.
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  • Set your desired bucket angle and let Bucket Assist automatically maintain the angle in sloping, leveling, fine grading, and trenching applications.
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  • Keep the tracks on ground in lifting and hard digging with Boom Assist.    
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  • Automatically stop excavator swing at operator-defined set points in truck loading and trenching applications with Swing Assist, which will help you use less effort and consume less fuel.
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  • All Cat Grade systems are compatible with radios and base stations from Trimble, Topcon, and Leica. Already invested in a grade infrastructure? You can install grade systems from Trimble, Topcon, and Leica onto the machine.
    •     
  • Operator Coaching is an in-cab system that recognizes specific opportunities for operators to be more productive and prevent unnecessary machine wear and tear.  

TAKE THE GUESSWORK OUT OF MANAGING YOUR EQUIPMENT

        
  • VisionLink® provides actionable data insights for all assets - regardless of fleet size or equipment manufacturer.* Review equipment data from your desktop or mobile device to maximize uptime and optimize assets. Dashboards provide information such as hours, miles, location, idle time, and fuel utilization. Make informed decisions that lower costs, simplify maintenance, and improve safety and security on your jobsite.
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  • VisionLink Productivity gathers and summarizes machine telematics and jobsite data from all your equipment – regardless of the manufacture.* View actionable information such as idle time, fuel burn, location, payload, load counts, total cycles, and more to improve machine efficiency, productivity, and utilization. Access data anywhere via a mobile, tablet, or desktop device - on or off the jobsite.
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  • Cat® Inspect is a mobile application that allows you to easily perform digital preventative maintenance (PM) checks, inspections, and daily walkarounds. Inspections can easily be integrated with other Cat data systems like VisionLink so you can keep a close eye on your fleet.
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  • Remote Troubleshoot is a mobile application that allows your Cat dealer to perform diagnostic testing on your connected machine remotely to help ensure that issues are resolved quickly and with less downtime.
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  • Remote Flash is a mobile application that allows you to update onboard software without a technician being present, allowing you to initiate software updates when convenient, increasing your overall operating efficiency.
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  • The Cat PL161 attachment locator allows you to track attachments across all worksites, reduce the number of lost attachments, and plan for attachment maintenance and replacement. The work tool recognition feature automatically adjusts machine settings based on the selected tool.

* Data field availability can vary by equipment manufacturer.

DESIGNED FOR OPERATORS

        
  • Cab options let you choose the level of comfort you need.
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  • Enjoy wide spacing between consoles for a more spacious comfortable environment.
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  • Sit in wide seats that adjust for operators of all sizes (heated and heated/cooled options are available).
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  • Get in and out of the cab easier using the tip-up left console (in Deluxe cab only).
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  • Control the excavator comfortably with easy-to-reach controls located in front of you. Standard automatic climate control keeps you at the right temperature throughout your shift.
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  • Improved viscous mounts reduce cab vibration by up to 50% over our previous excavator models.
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  • Stow your gear with plenty of in-cab storage behind the seat, overhead, and in the consoles.
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  • The standard radio has USB ports and Bluetooth® technology enabled to connect your device and make hands-free calls.

Standard Equipment

NOTE
  • Standard and optional equipment may vary. Consult your Cat dealer for details.
CAB
  • Rollover protective structure (ROPS)
  • Mechanical-suspension seat (Comfort only)
  • Heated air-suspension seat (Deluxe only)
  • High-resolution 203 mm (8 in) LCD touchscreen monitor
CAT TECHNOLOGY
  • VisionLink®
  • Remote Flash
  • Remote Troubleshoot
  • Cat Grade 2D
  • Cat Assist
ELECTRICAL SYSTEM
  • Two 1,000 CCA maintenance-free batteries
  • Programmable time-delay LED working lights
  • LED chassis light, left-hand/right-hand boom lights, cab lights
ENGINE
  • Cat C7.1 single turbo diesel engine
  • Three selectable power modes
  • Automatic engine speed control
  • Auto engine idle shutdown
  • 52°C (125°F) high-ambient cooling capacity
HYDRAULIC SYSTEM
  • Boom and stick regeneration circuits
  • Auto warm up
  • Auto two-speed travel
  • Boom and stick drift reduction valve
  • Auto hydraulic warm up
SAFETY AND SECURITY
  • 2D E-Fence
  • Auto hammer stop
  • Rearview camera
  • Right-hand mirror
  • Cat asset tracker
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
  • 4700 kg (10,400 lb) counterweight for SLR boom and stick
  • Tie-down points on base frame

Optional Equipment

NOTE

  • Standard and optional equipment may vary. Consult your Cat dealer for details.

BOOMS AND STICKS

  • 5.7 m (18'8") HD Reach boom
  • 8.85 m (29'0") Super Long Reach boom
  • 2.9 m (9'6") HD Reach stick
  • 2.5 m (8'2") HD Reach stick
  • 2.9 m (9'6") SD Reach stick (Kingdom of Saudi Arabia only)

CAB

  • High-resolution 254 mm (10 in) LCD touchscreen monitor
  • Cat Stick Steer

CAT TECHNOLOGY

  • VisionLink Productivity
  • Cat Grade 2D with Attachment Ready Option (ARO)
  • Cat Grade 3D single GNSS
  • Cat Grade 3D dual GNSS
  • Cat Tilt Rotator (TRS) Integration

ELECTRICAL SYSTEM

  • Four 1,000 CCA maintenance-free batteries

ENGINE

  • -32°C (-25°F) cold start capability

HYDRAULIC SYSTEM

  • Hammer return filter circuit
  • Hydraulic efficiency monitoring
  • Auto Heavy Lift
  • Tool control (two pump, one/two way high-pressure flow)
  • Basic tool control (one pump, one way high-pressure flow)

SAFETY AND SECURITY

  • Cat Command (remote control)
  • Right-hand-sideview camera
  • 360° visibility
  • Travel alarm
  • Swing alarm

UNDERCARRIAGE AND STRUCTURES

  • 600 mm (24") double grouser shoes
  • 600 mm (24") triple grouser shoes
  • 700 mm (28") triple grouser shoes
  • 790 mm (31") tripler grouser shoes
  • 3700 kg (8,160 lb) counterweight