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Overview

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

Engine

Units:
Engine Power - ISO 9249 162.0 HP 121.0 kW Less
Engine Model Cat C4.4 Cat C4.4 Less
Engine Power - ISO 14396 164.0 HP 122.0 kW Less
Bore 4.0 in 105.0 mm Less
Stroke 5.0 in 127.0 mm Less
Displacement 269.0 in³ 4.4 l Less

Hydraulic System

Main System - Maximum Flow 429 l/min (113 gal/min) 429 l/min (113 gal/min) Less
Maximum Pressure - Equipment 5075.0 psi 35000.0 kPa Less
Maximum Pressure - Travel 4974.0 psi 34300.0 kPa Less
Maximum Pressure - Swing 3988.0 psi 27500.0 kPa Less

Weights

Operating Weight 50265.0 lb 22800.0 kg Less

Service Refill Capacities

Fuel Tank Capacity 86.6 gal (US) 345.0 l Less
Cooling System 6.6 gal (US) 25.0 l Less
Engine Oil 4.0 gal (US) 15.0 l Less
Swing Drive - Each 3.2 gal (US) 12.0 l Less
Final Drive - Each 1.3 gal (US) 5.0 l Less
Hydraulic System - Including Tank 61.8 gal (US) 234.0 l Less
Hydraulic Tank 30.4 gal (US) 115.0 l Less
DEF Tank 10.3 gal (US) 39.0 l Less

Dimensions

Boom Reach 5.7 m (18'8") Reach 5.7 m (18'8") Less
Stick Reach 2.9 m (9'6") Reach 2.9 m (9'6") Less
Bucket 1.19 m ³ (1.56 yd³) 1.19 m ³ (1.56 yd³) Less
Shipping Height - Top of Cab 9.8 ft 2960.0 mm Less
Handrail Height 9.8 ft 2950.0 mm Less
Shipping Length 31.0 ft 9530.0 mm Less
Tail Swing Radius 9.3 ft 2830.0 mm Less
Counterweight Clearance 3.4 ft 1048.0 mm Less
Ground Clearance 1.6 ft 470.0 mm Less
Track Length 14.7 ft 4450.0 mm Less
Length to Center of Rollers 12.0 ft 3650.0 mm Less
Track Gauge 7.9 ft 2380.0 mm Less
Transport Width 9.8 ft 2980.0 mm Less

Working Ranges & Forces

Maximum Digging Depth 22.1 ft 6720.0 mm Less
Boom Reach 5.7 m (18'8") Reach 5.7 m (18'8") Less
Stick Reach 2.9 m (9'6") Reach 2.9 m (9'6") Less
Bucket 1.19 m ³ (1.56 yd³) 1.19 m ³ (1.56 yd³) Less
Maximum Reach at Ground Level 32.4 ft 9860.0 mm Less
Maximum Cutting Height 30.8 ft 9370.0 mm Less
Maximum Loading Height 21.4 ft 6490.0 mm Less
Minimum Loading Height 7.1 ft 2170.0 mm Less
Maximum Depth Cut for 2440 mm (8 ft) Level Bottom 21.5 ft 6550.0 mm Less
Maximum Vertical Wall Digging Depth 17.0 ft 5190.0 mm Less
Bucket Digging Force - ISO 38811.0 lbf 150.0 kN Less
Stick Digging Force - ISO 23911.0 lbf 106.0 kN Less

PERFORMANCE WITH LESS FUEL

  • Use up to 25% less fuel than the 320F excavator.
  • Increase operator efficiency by up to 45% with a suite of Cat technologies that lower operator fatigue and your operating costs, including fuel consumption and daily maintenance.
  • Match the excavator to the job using power modes including new Smart mode that automatically matches engine and hydraulic power to your digging conditions.
  • The advanced hydraulic system provides the optimum balance of power and efficiency while giving you the control you need for your precise digging requirements.
  • The electronically controlled, twin-turbocharged engine meets U.S. EPA Tier 4 Final and EU Stage V emission standards using a transparent aftertreatment system that requires no operator input or downtime.
  • Auxiliary hydraulic options give you the versatility to use a wide range of Cat attachments.
  • 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.
  • Don't let the temperature stop you from working. The excavator has a standard high ambient temperature capability of 52º C (125º F) and cold start capability of -18º C (0º F). An optional -32º C (-25º F) cold start package is available.

EFFICIENCY THROUGH TECHNOLOGY

  • 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.
  • Keep your tracks on the ground in lifting and hard digging with Boom Assist.
  • Set your desired bucket angle and let Bucket Assist automatically maintain the angle in sloping, leveling, fine grading, and trenching applications for easy, accurate, and fast jobs.
  • Standard Cat PAYLOAD on-board weighing system
  1. Achieve precise load targets and increase loading efficiency with on-the-go weighing and real-time estimates of your payload without swinging.
  2. Track your daily productivity such as truck target weights and load/cycle counts.
  3. Calibration can be performed in a matter of minutes.
  4. Combine Payload with VisionLink® and remotely manage your production targets.
  5. Take Payload data with you. The monitor's USB port lets you download results so you can manage progress without an internet connection or VisionLink® subscription.
  • Upgrade to optional Cat GRADE with Advanced 2D
  1. Create and edit grade designs with ease on a second high-resolution 10 in (254 mm) touchscreen monitor.
  • Upgrade to optional Cat GRADE with 3D
  1. Create and edit designs with ease and see the front linkage's full range of motion on a second high-resolution 10 in (254 mm) touchscreen monitor.
  2. Use the excavator’s onboard cell technology to quickly connect to 3D services like Trimble Connected Community or Virtual Reference Station.
  3. Know the excavator's exact position relative to GPS and GLONASS systems. The machine automatically compensates for excavator pitch and roll caused by sloping ground conditions.
  • Get remote services.
  1. Remote troubleshoot connects you to a dealer service pro to help solve your problem and quickly get you to work.
  2. Remoge flash works around your schedule to ensure your machine's software is up to date for optimal performance.
  3. The Cat App helps you manage fl eet location, hours, and maintenance schedules; it also alerts you for required maintenance and even allows you to request service from your local Cat dealer.
  • Standard Product Link™ provides location, machine hours, fuel usage, productivity, idle time, diagnostic codes, and other machine data on demand through VisionLink® online interface, helping you improve jobsite efficiency with lower operating costs.

DESIGNED FOR OPERATORS

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

RELIABILITY YOU CAN COUNT ON

  • Protect hydraulic components in cold weather. The auto warm-up feature speeds hydraulic oil warming in cooler temperatures.
  • The fuel system is protected from contamination of fuel by three levels of filtration.
  • Bottom guarding protects engine and hydraulic components from damage while swinging and traveling.
  • The hydraulic tank with a new oval shape designed to improve stress resistance.
  • The strong X-structure lower frame carries loads from the excavator's upper structure to the track.
  • Travel motor hydraulic lines are routed inside of the frame to protect them from damage.
  • The sloped track frame design prevents mud and debris from accumulating and damaging tracks.
  • The grease lubricated tracks have grease sealed between the pin and bushing to prevent debris from entering and reducing life.
  • The track rollers are rebuild-able and sealed to prevent dirt and debris causing wear of internal components.
  • A bolt-on track guiding guard helps maintain track alignment while traveling or working on slopes.

SIMPLE TO OPERATE

  • Start the engine with a push button; use a Bluetooth key fob, smartphone app, or the Operator ID passcode.
  • Program each joystick button, including response and pattern, using Operator ID; the machine will remember what you set each time you go to work.
  • Program up to four depth and slope offsets so you can easily get to grade without a grade checker – a real time saver and safety enhancer on the jobsite.
    • Protect your hammer from overworking. Auto hammer stop warns you after 15 seconds of continuous firing and then automatically shuts it off after 30 seconds – all to prevent wear and tear on the attachment and excavator.
  • The Cat Locator is a Bluetooth device that makes finding your attachments and other gear quick and easy. The excavator’s onboard Bluetooth reader or Cat App on your phone will locate the device automatically.
  • Save more time and energy with available work tool recognition. A simple shake of the attached tool confirms its identity; it also ensures all the attachment settings are correct so you can get to work quickly and efficiently.
  • Navigate quickly on the standard high-resolution 203 mm (8in) touchscreen monitor, or with the optional 254 mm (10 in) touchscreen monitor, or with the aid of the jog dial control.
  • A second 254 mm (10 in) monitor is available for the advanced grade control.
  • Not sure how a function works or how to maintain the excavator? Always have the operator's manual at your fingertips in the touchscreen monitor.

SAVE ON SERVICE AND MAINTENANCE

  • Extended maintenance intervals reduce maintenance costs by 20 percentover the Cat 320F excavator. (Savings calculated over 12,000 machine hours).
  • Do all daily maintenance at ground level.
  • Check engine oil level quickly and safely with the new ground-level engine oil dipstick; fill and check engine oil on top of the machine with a conveniently located second dipstick.
  • Reversing electric cooling fans make it easy to clean radiator, oil coolers, and condensers.
  • The new air intake filter with precleaner has double the dust holding capacity of the previous air intake filter.
  • Fuel filters are synchronized to be changed at 1,000 hours - double the interval from the previous filters.
  • The new hydraulic oil filter provides improved filtration performance, anti-drain valves to keep oil clean when the filter is replaced, and longer life with a 3,000 hour replacement interval – 50 percent longer than previous filter designs.
  • S·O·S ports are on ground level, simplifying maintenance and allowing for quick, easy extraction of samples for fluid analysis.

SAFELY HOME EVERY DAY

  • Work safely under structures or near traffic with standard 2D E-fence integrated right out of the factory. It prevents any part of the excavator from moving outside operator-defined set points, avoiding hazards and jobsite accidents.
  • Lift Assist helps you avoid tipping. With visual and auditory alerts, you’ll know if your load is within the excavator’s safe working range limits.
  • Access 100 percent of daily maintenance points from ground level – no need for you to climb on top of excavator.
  • The standard ROPS cab meets ISO 12117-2 2008 requirements.
  • Enjoy great visibility into the trench, in each swing direction, and behind you with the help of smaller cab pillars, larger windows, and a flat engine hood design.
  • The standard hydraulic lockout lever isolates all hydraulic and travel functions in the lowered position.
  • Ground-level shutoff switch stops all fuel to the engine when activated and shuts down the machine.
  • Rear and right-hand-sideview cameras are standard.Upgrade to360° visibilityand seeund the excavator, allowing the operator to easily visualize objects and personnel around the excavator in a single view.
  • Right-hand service platform design provides easy, safe, and quick access to upper service platform; the service platform steps use anti-skid punch plate to prevent slipping.
  • The handrails comply with ISO 2867 requirements.

320 Standard Equipment

CAB
  • ROPS, sound suppression
  • Mechanically adjustable seat
  • High-resolution 203 mm (8 in) LCD touchscreen monitor

CAT TECHNOLOGY
  • Cat Product Link
  • Cat GRADE with 2D

CAT TECHNOLOGY
  • Cat GRADE with Assist
  • Cat PAYLOAD
  • 2D E-Fence
  • Lift Assist
  • Remote flash
  • Remote troubleshoot

ENGINE
  • Three selectable power modes
  • Automatic engine speed control
  • 52°C (126°F) ambient cooling capacity
  • -32°C (-25°F) cold start capability
  • Reversing electric cooling fans
  • Biodiesel capability up to B20

HYDRAULIC SYSTEM
  • Boom and stick regeneration circuits
  • Slide joysticks
  • Auto hydraulic warm up
  • Auto two-speed travel
  • Boom and stick drift reduction valve

BOOM AND STICKS
  • 5.7 m (18'8") reach boom, 2.9 m (9'6") stick

UNDERCARRIAGE AND STRUCTURES
  • Tie-down points on base frame

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

SERVICE AND MAINTENANCE
  • Sampling ports for Scheduled Oil Sampling (S·O·S)
  • Ground-level and platform-level engine oil dipsticks

SAFETY AND SECURITY
  • Rear and right-hand-sideview cameras
  • Signaling/warning horn
  • Right-hand mirror
  • Ground-level engine shutoff switch
  • Right-hand handrail and hand hold
  • Signaling/warning horn

320 Optional Equipment

CAB
  • Air-adjustable seat with heat (Deluxe only)
  • High-resolution 254 mm (10 in) LCD touchscreen monitor

CAT TECHNOLOGY
  • Cat GRADE with Advanced 2D (not available on SLR)
  • Cat GRADE with 3D (not available on SLR)

ENGINE
  • 52°C (125°F) high-ambient cooling capacity

HYDRAULIC SYSTEM
  • Boom and stick lowering check valves
  • Hammer return filter circuit
  • Combined flow/high-pressure auxiliary circuit
  • Medium-pressure circuit
  • Quick coupler circuit for Cat Pin Grabber

BOOM AND STICKS
  • 8.85 m (29'0") SLR boom, 6.28 m (20'7") SLR stick

UNDERCARRIAGE AND STRUCTURES
  • 600 mm (24") triple grouser shoes
  • 700 mm (28") triple grouser shoes
  • 790 mm (31") triple grouser shoes
  • 900 mm (35") triple grouser shoes
  • 4200 kg (9,300 lb) counterweight for HD boom and stick

SAFETY AND SECURITY
  • Right-hand-side camera
  • 360° visibility

Excavator Attachments

From hammers to pulverizers, our attachments help you take on more jobs with your Cat Excavator.

Learn More