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Excavators 320 (tier 3)
Request a QuoteKey Information
Net Power - ISO 9249
117 kW
Operating weight
21,300 kg
Maximum digging depth
6,720 mm
Overview
Exceptional Performance, Intuitive Technology
The CAT® 320 hydraulic excavator sets the bar even higher in terms of performance and fuel efficiency in its size class. With the highest level of industry-standard factory-installed technologies, a new cab designed for driver comfort, improved productivity, and reduced fuel and maintenance costs, the 320 model sets the pace in terms of productivity and profitability for your job sites.
AdvantagesUp to 20% Fuel Consumption Reduction
A precise combination of low engine speed with a powerful hydraulic pump to achieve exceptional performance while consuming less fuel.
Up to 25% Maintenance Cost Reduction
With extended and better synchronized maintenance intervals, work more for lower costs compared to the previous model.
Up to 45% Increased Operating Efficiency
Factory-installed equipment with the highest level of industry-standard technologies such as Cat Grade with 2D module, Grade with Assist, and Payload.
Key Features
- All Latest Features
- More Tasks With Less Fuel
- Boosted Efficiency by Technologies
- Designed for Drivers
- Easy To Use
- Returning Home, Safe and Sound, Every Day
All Latest Features
The optional Cat Detect - People Detection system allows the driver to avoid personnel on the construction site through visual and audible warnings. The optional Cat Command remote control system allows you to work outside the cab and avoid potential hazards. The optional Integrated Vehicle Health Management system alerts the driver, providing maintenance instructions and necessary parts to avoid any unnecessary downtime. | The optional Global Navigation Satellite System (GNSS) with single antenna provides visual and audio guidance on the slope. Advanced software integration enables seamless operation of tiltrotator equipment with Cat Grade and Payload technologies. The optional auxiliary relay powers and stops CB radios, beacons, and other equipment without having to release the controls. Improve visibility to simplify and secure maintenance work with optional inspection lighting. Enhance site safety with an optional orientation alarm. Available features may vary by region. For more information on available offers in your region, please contact your local Cat dealer. Version number: 07F
More Tasks With Less Fuel
Save up to 20% on fuel compared to the Cat 320D2 Hydraulic Excavator. Up to 45% increase in operational efficiency thanks to standard Cat technologies that reduce driver fatigue and operating costs, including fuel consumption and daily maintenance. The C7.1 Engine can run on biodiesel up to B20 and complies with emissions standards equivalent to the US EPA Tier 3 standard, the European Stage IIIA standard, the Chinese Stage III emissions standard for non-road engines, and the Brazilian MAR-1 standard. The advanced hydraulic circuit provides the optimal balance of power and efficiency while giving you the necessary control to meet precise excavation needs. Adapt the hydraulic excavator to the task with power modes; the Smart mode automatically adjusts engine and hydraulic power to excavation conditions. Advansys™ bucket tips improve penetration and cycle times. They can be quickly replaced using a simple wheel nut wrench, without the need for a hammer or special tool, improving safety and increasing productive time. Auxiliary hydraulic options ensure the versatility required to use a wide range of Cat equipment. Don't let temperature be a barrier to work. The hydraulic excavator offers a high ambient temperature capacity of 52 °C (125 °F) and a cold start capacity of -18 °C (0 °F). An optional cold start package of -32 °C (-25 °F) is available.
Boosted Efficiency by Technologies
Gain up to 45% productivity compared to traditional leveling thanks to the Cat Grade 2D function as standard. Perform your excavation operations using real-time guidance on depth, slope, and horizontal distance relative to the slope. The 2D module can be upgraded to Cat Grade with Advanced 2D module or Cat Grade with 3D module. Standard Grade Assist - Ensure precise leveling, simply and effortlessly, with single-lever excavation. Set the desired bucket tilt and let Bucket Assist automatically maintain the angle during grading, precision leveling, and trenching. Keep the tracks on the ground during lifting and excavation operations on hard terrain with Boom Assist. Automatically stop the hydraulic excavator's swing at points defined by the operator during truck loading and trenching applications with Swing Assist, which will help you exert less effort and consume less fuel. Standard Cat Payload onboard weighing system - Cat Payload helps you achieve accurate target loads to improve operational efficiency. Pick up a load of material, with a bucket or grapple or with a grapple and half-shell bucket, and get a real-time weight estimate without even rotating. Track your daily productivity (e.g. truck target weights and number of loads/cycles). Calibration can be done in minutes. Combine Payload and VisionLink® and remotely manage your production goals. Take your Payload data with you. The monitor's USB port allows you to download work data to track job progress without needing an internet connection or a VisionLink® subscription. Upgrade the system to Cat Grade with Advanced 2D module (optional) - Easily create and modify grading plans on a second high-resolution 254mm (10in) touchscreen monitor. Upgrade the system to Cat Grade with 3D module (optional) - Looking for a 3D system for better excavation results? Caterpillar's new single-antenna global navigation satellite system (GNSS) simplifies this by providing visual and audio guidance on the slope. Plus, you can create and modify designs on the touchscreen during your work. If your application requires a dual-antenna system, the upgrade is quite simple. Switch to a dual-antenna GNSS system for maximum leveling efficiency. The system allows you to create and modify designs on the touchscreen during work; your plan design can also be sent to the hydraulic excavator to make your job easier. You also benefit from the added value of avoid zone, cut and fill mapping, lane guidance,
Designed for Drivers
Cabin options allow you to choose the level of comfort you need. Benefit from a wide spacing between the consoles for a more comfortable and spacious environment. Settle into the new wide seats that can be adjusted for drivers of all sizes (heating and heating/cooling options are available). Enter and exit the cabin more easily with the foldable left console (Deluxe cabin only). Effortlessly maneuver the hydraulic excavator using easily accessible controls located in front of you. The standard automatic air conditioning keeps you at the ideal temperature throughout the day. Improved viscous mounts reduce cabin vibrations up to 50% more than our previous hydraulic excavator models. Store your equipment with large storage spaces in the cabin behind the seat, above the head, and in the consoles. The standard radio features USB ports and Bluetooth® technology so you can connect your personal devices and make hands-free calls.
Easy To Use
Start the engine with a push button; use a Bluetooth keychain or a user ID access code. Program each button on the joystick, including the response and the layout using the user ID; the programming is saved for all your subsequent work. Program up to four different depth and slope offsets for easy leveling without leveling control, which ensures speed and safety on the job site. Save time and energy with tool recognition. A simple shake of the attached tool confirms its identity. It also verifies that all equipment settings are correct so you can start working quickly and efficiently. Navigate quickly on the standard 203mm (8in) high-resolution touchscreen monitor, or with the optional 254mm (10in) touchscreen, or using the control knob. A second 254mm (10in) monitor is available for advanced leveling control. Protect your hammer from overheating and rapid wear. The hammer's automatic shutdown function warns you after 15 seconds of continuous priming, then automatically stops the hammer after 30 seconds, which helps increase the tool's service life. Not sure how a function works or how to maintain the hydraulic excavator? Make sure to always have the operator's manual at your fingertips on the touchscreen monitor. The Cat PL161 equipment locator is a Bluetooth device that allows you to quickly and easily find your accessories and other equipment. The built-in Bluetooth reader on the hydraulic excavator or the Cat app on your phone can automatically detect the device's location. Save time and energy with tool recognition functionality. A simple shake of the attached tool confirms its identity. It also verifies that all equipment settings are correct so you can start working quickly and efficiently. The Auto Dig Boost function increases power by up to 8% for better bucket penetration, shorter cycle times, and higher payloads. Moving the hydraulic excavator is even easier with Cat Stick Steer. Just press a button and use one hand to move forward and turn instead of using both hands on levers or both feet on pedals. Simplify machine operation with a single click on a joystick button. Additional auxiliary relays allow you to power on or off a CB radio, beacon light, and even a dust suppression system without letting go of the joystick (Deluxe cab only). Need more lifting force during your work? Activate the automatic heavy lift and get an 8% power increase precisely when and for as long as you need it. Tiltrotator equipment, whether Cat or other brands, works perfectly with Cat 2D Grade, Assist
Returning Home, Safe and Sound, Every Day
Cat Detect - Person Detection protects the most valuable resources on construction sites, people. The system uses intelligent cameras with depth sensors to provide visual and audible warnings to operators, so they can take quick action when a person is too close to the hydraulic excavator. Enhance operator safety by adding Cat Command to your fleet. The remote control system allows you to avoid many potential risks. The new no-line-of-sight comes with Wi-Fi radio, cameras, and a microphone, allowing you to work from anywhere. The 2D electronic barrier prevents the hydraulic excavator from exiting the points defined by the operator; the system is compatible with combinations of clamp and bucket, as well as hammer, grapple, and half-shell equipment. Access 100% of daily maintenance points at ground level (no need to climb onto the hydraulic excavator). The standard ROPS (Rollover Protective Structure) cabin complies with ISO 12117-2 2008. Benefit from excellent visibility in the trench, in every direction, and behind you with smaller cabin pillars, larger windows, and a flat engine hood. The standard hydraulic safety lever inhibits all hydraulic and travel functions when in the lowered position. When activated, the ground-level stop switch cuts off fuel supply to the engine and stops the machine. A rearview camera is included as standard. Opt for 360° visibility and easily see objects and personnel around the hydraulic excavator at a glance. The right-side maintenance platform allows easy, safe, and quick access to the upper maintenance platform; the steps of the maintenance platform are made of non-slip perforated plates to prevent slipping. The handrails comply with ISO 2867:2011. Simplify and secure maintenance work with optional inspection lighting. Simply activating a switch allows you to illuminate the engine, pump, battery, and radiator compartments for better visibility. Improve safety on the construction site. Add an orientation alarm to alert colleagues when transitioning from trenching to backfilling and vice versa.
Product Specifications for 320 (tier 3)
- ENGINE
- Net Power - ISO 9249117 kW
- Engine ModelC7.1 Cat
- Bore105 mm
- Stroke135 mm
- Displacement7.01 l
- HYDRAULIC SYSTEM
- Main Hydraulic Circuit - Maximum Flow429 l/min (113 US gal/min)
- Maximum Pressure - Equipment35000 kPa
- Maximum Pressure - Equipment - Lift Mode38000 kPa
- Maximum Pressure - Travel34300 kPa
- Maximum Pressure - Swing27500 kPa
- SWING MECHANISM
- Swing Speed11.25 RPM
- Maximum Swing Torque82 kNm
- WEIGHT
- Operating Weight21300 kg
- MAINTENANCE CAPACITIES
- Fuel Tank Capacity345 l
- Cooling System25 l
- Engine Oil25 l
- Swing Drive - Each12 l
- Final Drive - Each4 l
- Hydraulic System - Including Tank234 l
- Hydraulic Tank115 l
- DIMENSIONS
- BoomReach of 5.7 m (18'8")
- ArmReach R2.9B1 (9'6")
- Bucket1.19 m³ (1.56 yd³)
- Shipping Height - Top of Cab2960 mm
- Handrail Height2950 mm
- Shipping Length9530 mm
- Tail Swing Radius2830 mm
- Counterweight Ground Clearance1050 mm
- Ground Clearance470 mm
- Track Length4450 mm
- Track Length to Center of Rollers3650 mm
- Track Gauge2380 mm
- Transport Width2980 mm
- WORKING RANGES AND FORCES
- Maximum Digging Depth6720 mm
- BoomReach of 5.7 m (18'8")
- ArmReach R2.9B1 (9'6")
- Bucket1.19 m³ (1.56 yd³)
- Maximum Ground Reach9860 mm
- Maximum Cutting Height9370 mm
- Maximum Loading Height6490 mm
- Minimum Loading Height2170 mm
- Maximum Depth of Flat Bottom Cut (8 ft)6550 mm
- Maximum Vertical Wall Digging Depth5190 mm
- Bucket Digging Force - ISO150 kN
- Arm Digging Force - ISO106 kN
Standard Equipment for 320 (tier 3)
-
UNDERCARRIAGE AND STRUCTURES
- 4,700 kg (10,400 lb) Counterweight for Boom and SLR Arm
- Attachment Points on Base Frame
-
NOTE
- Standard equipment and options may vary. For more information, please consult your Cat dealer.
-
CAB
- Rollover Protective Structure (ROPS) Frame
- Mechanical Suspension Seat (Comfort only)
- Heated Air Suspension Seat (Deluxe only)
- High-Resolution 203mm (8 in) Touchscreen LCD Monitor
-
CAT TECHNOLOGY
- Product Link™ Cat
- Remote Software Update
- Remote Troubleshoot
- Cat Grade 2D
- Cat Assist
- Cat Payload
- Electronic Fence
- Lift Assist
-
ELECTRICAL CIRCUIT
- Two 1,000 CCA Maintenance-Free Batteries
- LED Work Lights with Programmable Delay
- Diode-type Chassis and Boom Mounted Work Lights, Cab Work Lights
-
ENGINE
- C7.1 Cat Turbo Diesel Engine
- Three Selectable Power Modes
- Automatic Engine Speed Control
- Automatic Engine Idle Shutdown
- High Ambient Cooling Capacity up to 52°C (125°F)
- -18°C (0°F) Cold Start Capability
- Dual-Element Air Filter with Integrated Precleaner
- Reversible Electric Cooling Fans
- Biodiesel Compatibility up to B20
-
HYDRAULIC CIRCUIT
- Boom and Arm Regeneration Circuits
- Automatic Warm-up
- Two-Speed Auto Shift
- Boom and Arm Load-Holding Valve
- Automatic Hydraulic Preheating
- Slider Controls
-
SAFETY AND PROTECTION
- Rearview Camera
- Right-Side Mirror
- Cat Asset Tracking System
- Ground-Level Engine Shutdown Switch
- Handrail and Grab Handle on Right Side
- Warning/Signal Horn
-
MAINTENANCE AND SERVICE
- Periodic Oil Sampling Ports (S·O·S)
- Ground and Platform Level Engine Oil Dipsticks
Available Options for 320 (tier 3)
-
NOTE
- Standard equipment and options may vary. For more information, please consult your Cat dealer.
-
BOOMS AND ARMS
- Extra-Heavy Duty 5.7m (18'8") Standard Boom
- Super Long Reach 8.85m (29'0") Boom
- Extra-Heavy Duty 2.9m (9'6") Standard Arm
- Extra-Heavy Duty 2.5m (8'2") Standard Arm
- Standard 2.9m (9'6") General Purpose Arm (Saudi Arabia only)
- Standard 2.5m (8'2") General Purpose Arm (Saudi Arabia only)
- Super Long Reach 6.28m (20'7") Arm
-
CAB
- High-Resolution 254mm (10 in) Touchscreen LCD Monitor
- Cat Stick Steer
- Auxiliary Relay
-
CAT TECHNOLOGY
- Cat Grade with Advanced 2D Module
- Cat Grade with Single GNSS Antenna 3D
- Cat Grade with Dual GNSS Antenna 3D
-
ELECTRICAL CIRCUIT
- Four 1,000 CCA Maintenance-Free Batteries
-
ENGINE
- -32°C (-25°F) Cold Start Capability
-
HYDRAULIC SYSTEM
- Hammer Return Filter Circuit
- Tool Control (Dual Pump, Uni/Bi-Directional High-Pressure Flow)
- Basic Tool Control (Single Pump, Uni-Directional High-Pressure Flow)
- Coupler Circuit for Cat Pin Grabber Coupler
- Automatic Heavy Lift
-
SAFETY AND PROTECTION
- Cat Detect - Person Detection
- Right Side Vision Camera
- 360° Visibility
- Slew Alarm
- Cat Command Remote Control
- Inspection Lighting
-
MAINTENANCE
- Integrated Vehicle Health Management System
-
UNDERCARRIAGE AND STRUCTURES
- 600mm (24") Double Grouser Shoes
- 600mm (24") Triple Grouser Shoes
- 700mm (28") Triple Grouser Shoes
- 790mm (31") Triple Grouser Shoes
- 3700 kg (8160 lb) Counterweight
- 4200 kg (9300 lb) Counterweight
Media Gallery
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