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Caterpillar

320 Hydraulic Excavator

Net Power - ISO 9249

172 HP

Operating Weight

49600 lb

Maximum Digging Depth

22.1 ft

Overview

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, 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.

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320 Medium Hydraulic Excavator
320 Medium Hydraulic Excavator
320 Medium Hydraulic Excavator
320 Medium Hydraulic Excavator
320 Medium Hydraulic Excavator
320 Medium Hydraulic Excavator

320 GC, 320, 323 - Next Generation Cat® Excavators: More Choices to Match your Work
Next Generation Excavator Cat® Connect Technology
Cat® Next Generation Excavators: Walkaround 320 Size Class
Cat® Next Generation Excavators: Vision
Cat® Next Generation Excavators: Manufacturing
Cat® Next Generation Excavators: Design
Cat 320® Next Generation Excavator Delivers More for Gameon 2 Contractors
Cat 320® Next Generation Excavator Delivers More for Schwarz Excavations
Stick Steer for Cat® Excavators

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Features

LATEST FEATURES

Optional Cat Detect - People Detection helps the operator avoid personnel on the jobsite with visual and auditory alerts.
Optional Cat Command remote control allows you to work outside of the cab to help avoid potential hazards.
Optional integrated vehicle health management system alerts the operator with service guidance and parts needed to enhance uptime.
Optional single antenna global navigation satellite system (GNSS) gives you visual and auditory guidance to grade.
Enhanced software integration enables tiltrotator attachments to work seamlessly with Cat Grade and Payload technologies.
Optional auxiliary relay powers on and turns off CB radios, beacon lights, and other attachments without you taking your hands off the joysticks.
Enhance visibility to make service work easier and safer with optional inspection lighting.
Make the jobsite safer with an optional swing alarm.

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

PERFORMANCE WITH LESS FUEL

Use up to 25 percent less fuel than the 320F excavator.
Increase operator efficiency by up to 45 percent 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 IV emission standards using a transparent after treatment 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 -32º C (-25º F).

EFFICIENCY THROUGH TECHNOLOGY

Boost productivity up to 45 percent vs traditional grading with the standard Cat Grade with 2D system.
Dig with real-time guidance on depth, slope, and horizontal distance to grade.
The 2D system is upgradable to Cat Grade with Advanced 2D or Cat Grade with 3D.
Standard Grade Assist -

Stay on grade - simply and effortlessly -with single-lever digging.
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.
Keep your tracks on the ground in lifting and hard digging with Boom Assist.
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.

Standard Cat Payload on-board weighing system -

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.
Track your daily productivity such as truck target weights and load/cycle counts.
Calibration can be performed in a matter of minutes.
Combine Payload with VisionLink® and remotely manage your production targets.
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 -

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 -

Want a 3D system to improve your digging results? Caterpillar's new 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.
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.

Get remote services -

Remote Troubleshoot connects you to a dealer service pro to help solve your problem and quickly get you to work.
Remote Flash works around your schedule to ensure your machine's software is up to date for optimal performance.
The Cat App helps you manage fleet 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.
Improve your accuracy and safety – Add a new Cat Tiltrotator system upgrade with factory-fit joysticks. The system allows a Tiltrotator to work with standard Cat 2D Grade and E-Fence; it uses the standard cab monitor to display the tool and engage its SecureLock™ so you don’t need spend money on an extra monitor.
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.

EFFICIENCY THROUGH TECHNOLOGY

Boost productivity up to 45 percent vs traditional grading with the standard Cat Grade with 2D system.
Dig with real-time guidance on depth, slope, and horizontal distance to grade.
The 2D system is upgradable to Cat Grade with Advanced 2D or Cat Grade with 3D.
Standard Grade Assist -

Stay on grade - simply and effortlessly -with single-lever digging.
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.
Keep your tracks on the ground in lifting and hard digging with Boom Assist.
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.

Standard Cat Payload on-board weighing system -

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.
Track your daily productivity such as truck target weights and load/cycle counts.
Calibration can be performed in a matter of minutes.
Combine Payload with VisionLink® and remotely manage your production targets.
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 -

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 -

Want a 3D system to improve your digging results? Caterpillar's new 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.
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.

Get remote services -

Remote Troubleshoot connects you to a dealer service pro to help solve your problem and quickly get you to work.
Remote Flash works around your schedule to ensure your machine's software is up to date for optimal performance.
The Cat App helps you manage fleet 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.
Improve your accuracy and safety – Add a new Cat Tiltrotator system upgrade with factory-fit joysticks. The system allows a Tiltrotator to work with standard Cat 2D Grade and E-Fence; it uses the standard cab monitor to display the tool and engage its SecureLock™ so you don’t need spend money on an extra monitor.
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.

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 (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, 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.
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 (8 in) touchscreen monitor, or with the optional 254 mm (10 in) touchscreen monitor, or with the aid of the jog dial control.
Protect your hammer tool from overheating and rapid wear. Auto hammer stop warns you after 15 seconds of continuous firing and then automatically shuts it off after 30 seconds - all to extend the tool’s service life.
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.
The Cat PL161 attachment 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 the available work tool recognition feature. 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.
Auto Dig Boost increases power by up to 8% for better bucket penetration, shorter cycle times, and greater payloads.
Make moving the excavator much easier with Cat Stick Steer. Simply push a button and use one hand to travel and turn instead of both hands or feet on levers or pedals.
Make operating easier with the touch of a joystick button. Additional auxiliary relays allow you to power on or turn off a CB radio, beacon light, and even a dust suppression watering system without taking your hands off the joysticks.
Need more lift during your shift? Turn on Auto Heavy Lift and get 8% more power exactly when you need it for as long as you need it.
Tiltrotator attachments--ours or other brands--work seamlessly with Cat 2D Grade, Assist, Payload, and E-Fence . With no additional hardware required, all you have to do is simply select "Third Party Tiltrotator System Installation" in the monitor, do the calibration, and get to work.

SIMPLE TO OPERATE

Start the engine with a push button; use a Bluetooth key fob, 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.
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 (8 in) touchscreen monitor, or with the optional 254 mm (10 in) touchscreen monitor, or with the aid of the jog dial control.
Protect your hammer tool from overheating and rapid wear. Auto hammer stop warns you after 15 seconds of continuous firing and then automatically shuts it off after 30 seconds - all to extend the tool’s service life.
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.
The Cat PL161 attachment 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 the available work tool recognition feature. 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.
Auto Dig Boost increases power by up to 8% for better bucket penetration, shorter cycle times, and greater payloads.
Make moving the excavator much easier with Cat Stick Steer. Simply push a button and use one hand to travel and turn instead of both hands or feet on levers or pedals.
Make operating easier with the touch of a joystick button. Additional auxiliary relays allow you to power on or turn off a CB radio, beacon light, and even a dust suppression watering system without taking your hands off the joysticks.
Need more lift during your shift? Turn on Auto Heavy Lift and get 8% more power exactly when you need it for as long as you need it.
Tiltrotator attachments--ours or other brands--work seamlessly with Cat 2D Grade, Assist, Payload, and E-Fence . With no additional hardware required, all you have to do is simply select "Third Party Tiltrotator System Installation" in the monitor, do the calibration, and get to work.

SAVE ON SERVICE AND MAINTENANCE

Extended maintenance intervals reduce maintenance costs by 25 percent over the Cat 320F excavator (savings calculated over 12,000 machine hours).
Boost productivity with proactive service reminders. The new Integrated vehicle health management system alerts the operator with step-by-step service guidance along with parts needed so you don't experience any unnecessary downtime.
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.
Using Cat genuine oil and filters and doing your typical S∙O∙S^SM monitoring will double the current service interval to 1,000 hours, giving you greater uptime to do more work.
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

Cat Detect - People Detection helps protect the most valuable asset on any jobsite – people. The system uses smart cameras with depth sensors to provide the operator with visual and auditory alerts so he or she can take immediate action when a person is too close to the excavator.
Enhance operator safety by adding Cat Command to your fleet. The remote control system keeps you away from potential hazards. The new non-line-of-site kit comes with Wi-Fi radio, cameras, and microphone to allow you to work anywhere you want.
2D E-Fence prevents the excavator from moving outside of operator-defined set points; the system works with thumb and bucket combinations along with hammer, grapple, and clamshell attachments.
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 shut-off switch stops all fuel to the engine when activated and shuts down the machine.
Rear and right-hand-sideview cameras are standard. Upgrade to 360° visibility and see under 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.
Make service work easier and safer with optional inspection lighting. With the flip of a switch, lights will illuminate the engine, pump, battery, and radiator compartments to enhance visibility.
Enhance jobsite safety. Add a swing alarm to alert people when you're rotating from trench to stockpile and back again.

Specifications
Standard Equipment
Optional Equipment

Specifications

Engine

Spec	Value
Net Power - ISO 9249	172 HP 128.5 kW
Engine Model	Cat C4.4e TTA Cat C4.4e TTA
Engine Power - ISO 14396	174 HP 129.4 kW
Bore	4 in 105 mm
Stroke	5 in 127 mm
Displacement	269 in³ 4.4 l

Hydraulic System

Spec	Value
Main System - Maximum Flow	429 l/min (113 gal/min) 429 l/min (113 gal/min)
Maximum Pressure - Equipment	5075 psi 35000 kPa
Maximum Pressure - Travel	4974 psi 34300 kPa
Maximum Pressure - Swing	3988 psi 27500 kPa

Swing Mechanism

Spec Value

Maximum Swing Torque 60300 ft·lbf 82 kN·m
Weights

Spec Value

Operating Weight 49600 lb 22500 kg

Spec	Value
Maximum Swing Torque	60300 ft·lbf 82 kN·m

Spec	Value
Operating Weight	49600 lb 22500 kg

Service Refill Capacities

Spec	Value
Fuel Tank Capacity	86.6 gal (US) 345 l
Cooling System	6.6 gal (US) 25 l
Engine Oil	4 gal (US) 15 l
Swing Drive - Each	3.2 gal (US) 12 l
Final Drive - Each	1.3 gal (US) 5 l
Hydraulic System - Including Tank	61.8 gal (US) 234 l
Hydraulic Tank	30.4 gal (US) 115 l
DEF Tank	10.3 gal (US) 39 l

Dimensions

Spec	Value
Boom	Reach 5.7 m (18'8") Reach 5.7 m (18'8")
Stick	Reach 2.9 m (9'6") Reach 2.9 m (9'6")
Bucket	1.19 m ³ (1.56 yd³) 1.19 m ³ (1.56 yd³)
Shipping Height - Top of Cab	9.8 ft 2960 mm
Handrail Height	9.8 ft 2950 mm
Shipping Length	31 ft 9530 mm
Tail Swing Radius	9.3 ft 2830 mm
Counterweight Clearance	3.4 ft 1050 mm
Ground Clearance	1.6 ft 470 mm
Track Length	14.7 ft 4450 mm
Length to Center of Rollers	12 ft 3650 mm
Track Gauge	7.9 ft 2380 mm
Transport Width	9.8 ft 2980 mm

Working Ranges & Forces

Spec	Value
Maximum Digging Depth	22.1 ft 6720 mm
Boom	Reach 5.7 m (18'8") Reach 5.7 m (18'8")
Stick	Reach 2.9 m (9'6") Reach 2.9 m (9'6")
Bucket	1.19 m ³ (1.56 yd³) 1.19 m ³ (1.56 yd³)
Maximum Reach at Ground Level	32.4 ft 9860 mm
Maximum Cutting Height	30.8 ft 9370 mm
Maximum Loading Height	21.4 ft 6490 mm
Minimum Loading Height	7.1 ft 2170 mm
Maximum Depth Cut for 2440 mm (8 ft) Level Bottom	21.5 ft 6550 mm
Maximum Vertical Wall Digging Depth	17 ft 5190 mm
Bucket Digging Force - ISO	38811 lbf 150 kN
Stick Digging Force - ISO	23911 lbf 106 kN

Standard Equipment

NOTE

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

CAB

Rollover protective structure (ROPS)
Air-adjustable seat with heat (Deluxe only)
Auto-adjustable seat with heat and air ventilation (Premium only)
High-resolution 254 mm (10 inch) LCD touchscreen monitor

CAT TECHNOLOGY

Cat Product Link™
Remote Flash
Remote Troubleshoot
Cat Grade with 2D
Cat Assist
Cat Payload
E-Fence

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 C4.4 twin turbo diesel engine
Three selectable power modes
Automatic engine speed control
52°C (126°F) ambient cooling capacity
-32°C (-25°F) cold start capability
Double element air filter with integrated precleaner
Reversing electric cooling fans
Biodiesel capability up to B20

HYDRAULIC SYSTEM

Boom and stick regeneration circuits
Auto warm up
Auto two-speed travel
Auto dig boost
Boom and stick drift reduction valve

SAFETY AND SECURITY

Rearview and right-side-view cameras
Ground-level engine shutoff switch
Right-hand handrail and hand hold
Signaling/warning horn

SERVICE AND MAINTENANCE

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

UNDERCARRIAGE AND STRUCTURES

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") Reach boom
5.7 m (18'8") HD Reach boom
2.8 m (9'2") Stub + 3.3 m (10'10") Fore, VA boom
8.85 m (29'0") Super Long Reach boom
2.5 m (8'2") Reach stick
2.9 m (9'6") Reach stick
2.5 m (8'2") HD Reach stick
2.9 m (9'6") HD Reach stick
2.9 m (9'6") HD Thumb Ready Reach stick
6.28 m (20'7") Super Long Reach stick

CAB

Cat Stick Steer
Auxiliary relay

CAT TECHNOLOGY

Cat Grade with Advanced 2D
Cat Grade with 3D single GNSS
Cat Grade with 3D dual GNSS

HYDRAULIC SYSTEM

Boom and stick lowering check valves
Hammer return filter circuit
Advanced tool control (two pump, one/two way high-pressure flow)
Medium-pressure circuit
Quick coupler circuit for Cat pin grabber

SAFETY AND SECURITY

Cat Detect People Detection
360° visibility
Cat Command remote control
Swing alarm
Inspection lighting

SERVICE AND MAINTENANCE

Integrated vehicle health management system

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
4.2 mt (9,300 lb) counterweight
4.7 mt (10,400 lb) counterweight

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