323

Medium Excavators 323 Tier 3

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Key Specs

Net Power - ISO 9249
157 hp
117 kW
Operating Weight
50500 lb
22900 kg
Maximum Digging Depth
22.1 ft
6730 mm

Overview

High Production with Built-In Technology

The Cat® 323 moves more material faster with powerful hydraulics and standard Cat technologies for improved digging performance. Built for roadwork, heavy utility, and mass excavation, it helps reduce rework, lower fuel consumption, and cut cost per ton.

Benefits

Low Fuel Consumption

A precise combination of low engine speed and a large hydraulic pump deliver top performance, helping to burn less fuel.

Low Maintenance Costs

Extended and more synchronized maintenance intervals help increase uptime and reduce costs compared to the previous model.

High Operating Efficiency

Cat Grade with 2D, Cat Payload, Auto Dig Boost*, and Auto Heavy Lift* come standard, helping operators dig with precision, load faster, and move more material every hour.

*Not available on Super Long Reach configurations.

Features At A Glance

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Latest Features

Latest Features

Machine Setup Simplification
        
  • At the touch of fingertips and navigating user-friendly icons, the latest operator oriented User Interface (UI) maximizes uptime and gets crews to work without delay. From re-ordering work tool lists to creating new work tool combinations as needed, operators can quickly set up machines and easily access information.
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  • The interface allows operators to maintain accuracy and makes the most of every second of their shift. Adding the ability to input couplers and attachments into the system makes setting up work tool combinations highly efficient by significantly reducing calibration time. It also eliminates the need to measure up again when changing Cat® work tool attachments and makes it manageable for a single person to check and adjust for bucket wear.

Cat® Grade 3D Ready
        
  • The Cat Grade 3D Ready option includes all the hardware required for the Grade with 3D system, installed and tested from the factory. This option provides an easier upgrade path for customers who want to add Grade with 3D after their initial purchase. To activate, contact your Cat Dealer to purchase the required 3D software licenses. Licenses can be installed remotely or manually loaded onto the machine.

Cat Payload and Advanced Payload*
        
  • Cat Payload provides operators with on-the-go weighing to help them hit load targets and avoid overloading, underloading, or misloading materials. Advanced Payload is a system upgrade that offers expanded features and capabilities, including custom tags, daily totals, and electronic ticketing. Combine Payload with VisionLink™** to analyze jobsites and individual assets for remote management of production targets and key metrics.

*Payload technologies are not legal for trade.
**VisionLink subscription required. 


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

Move More with Less Fuel

        
  • Consume lower fuel in comparison to the Cat® 323D2 excavator.
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  • Help improve operator efficiency with a suite of Cat technologies including VisionLink, Cat Grade 2D, Cat Payload, and more.
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  • Match the excavator to the job using power modes; let Smart mode automatically match engine and hydraulic power to your working conditions.
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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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  • The electronically controlled, turbocharged engine can run on biodiesel up to B20 and meets Tier 3/Stage IIIA equivalent emission standards.
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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 52º C (125º F) and cold start capability of -18º C (0º F). An optional -32º C (-25º F) cold start package is available.
Technology That Gets Work Done

Technology That Gets Work Done

        
  • The latest operator oriented User Interface (UI) has been designed to maximize uptime by allowing operators to easily reorder work tool lists and quickly create new work tool combinations. It also eliminates the need to measure up again when changing Cat® work tool attachments and makes it manageable for a single person to check and adjust for bucket wear.
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  • Leverage standard Cat Grade with 2D system with indicate-only and laser capability to help boost productivity.
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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.
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  • 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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  • 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.
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  • The Cat Grade 3D Ready option includes all the hardware required for the Grade with 3D system, installed and tested from the factory. Activation requires the purchase of additional 3D software licenses.
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  • Standard Grade Assist helps you stay on grade – simply and effortlessly – with single-lever digging.
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  • Keep the tracks on ground in lifting and hard digging with Boom Assist.
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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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  • 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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  • 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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  • Advanced Payload is a system upgrade that offers expanded features and capabilities, including custom tags, daily totals, and electronic ticketing.
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  • Combine Payload with VisionLink™ and remotely manage your production targets.
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  • Optional 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

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. Equipment management features provide up-to-date asset tracking of your entire fleet. You can track asset location, operating hours, fuel level, health issues, and overall utilization. Monitor equipment health with fault codes, fluid analysis, and inspection due dates. It's all about making informed, data-based decisions to help reduce operating costs. Productivity management features enable you to analyze overall job site performance. You'll be able to track tonnage moved, production targets, and payload, as well as Grade 3D and compaction data. These vital metrics help you to reduce costs and improve jobsite operational efficiency.
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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

Designed for Operators

        
  • Two cab options – Comfort and Deluxe – let you choose the level of comfort you need.
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  • Enjoy wide spacing between consoles for a more comfortable environment.
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  • Sit in the lastest, wide seats that adjust for operators of all sizes (heated option available).
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  • Get in and out of the cab easier using the tilt-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.
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  • Standard automatic climate control keeps you at the right temperature throughout your shift.
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  • Stow your gear with plenty of in-cab storage behind and beneath the seat, overhead, and in the consoles. A cup holder, document holder, bottle holder, and coat hook are included.
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  • The standard radio has USB ports and Bluetooth® technology enabled to connect your device and make hands-free calls.
Built for Long Term Production

Built for Long Term Production

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

Product Specifications for 323

Net Power - ISO 9249 157 hp 117 kW
Net Power - ISO 9249 (DIN) 159 hp (metric) 159 hp (metric)
Engine Model Cat® C7.1 Cat® C7.1
Engine Power - ISO 14396 158 hp 118 kW
Engine Power - ISO 14396 (DIN) 160 hp (metric) 160 hp (metric)
Bore 4 in 105 mm
Stroke 5 in 135 mm
Displacement 428 in³ 7.01 l
Biodiesel Capability Up to B20¹ Up to B20¹
Emissions Meets Brazil MAR-1 emission standards, equivalent to U.S. EPA Tier 3 and EU Stage IIIA. 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. 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. 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.
Operating Weight 50500 lb 22900 kg
Note Long undercarriage, Heavy Duty (HD) Reach boom, HD R2.9 (9'6") stick, 1.30 m³ (1.70 yd³) HD bucket, 600 mm (24") HD shoes, and 4200 kg (9,260 lb) counterweight. Long undercarriage, Heavy Duty (HD) Reach boom, HD R2.9 (9'6") stick, 1.30 m³ (1.70 yd³) HD bucket, 600 mm (24") HD shoes, and 4200 kg (9,260 lb) counterweight.
Maximum Digging Depth 22.1 ft 6730 mm
Boom HD Reach 5.7 m (18'8") HD Reach 5.7 m (18'8")
Stick HD Reach 2.9 m (9'6") HD Reach 2.9 m (9'6")
Bucket HD 1.30 m³ (1.70 yd³) HD 1.30 m³ (1.70 yd³)
Maximum Reach at Ground Level 32.4 ft 9870 mm
Maximum Cutting Height 31 ft 9450 mm
Maximum Loading Height 21.3 ft 6480 mm
Minimum Loading Height 7.1 ft 2160 mm
Maximum Depth Cut for 2440 mm (8 ft) Level Bottom 21.6 ft 6560 mm
Maximum Vertical Wall Digging Depth 18.5 ft 5620 mm
Bucket Digging Force - ISO 31505 lbf 140 kN
Stick Digging Force - ISO 23962 lbf 107 kN
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 - Equipment - Lift Mode 5510 klb/in² 38000 kPa
Maximum Pressure - Travel 4974 psi 34300 kPa
Maximum Pressure - Swing 3998 psi 27500 kPa
Swing Speed* 11.25 r/min 11.25 r/min
Maximum Swing Torque 60300 lbf·ft 82 kN·m
Note (1) *For CE-marked machine default value may be set lower. *For CE-marked machine default value may be set lower.
Fuel Tank Capacity 91.1 gal (US) 345 l
Cooling System 6.6 gal (US) 25 l
Engine Oil 6.6 gal (US) 25 l
Swing Drive 3.2 gal (US) 12 l
Final Drive - Each 1.1 gal (US) 4 l
Hydraulic System - Including Tank 61.8 gal (US) 234 l
Hydraulic Tank 30.4 gal (US) 115 l
Boom HD Reach 5.7 m (18'8") HD Reach 5.7 m (18'8")
Stick HD Reach 2.9 m (9'6") HD Reach 2.9 m (9'6")
Bucket HD 1.30 m³ (1.70 yd³) HD 1.30 m³ (1.70 yd³)
Shipping Height - Top of Cab 9.9 ft 2960 mm
Handrail Height 9.8 ft 2950 mm
Shipping Length 31.3 ft 9530 mm
Tail Swing Radius 9.3 ft 2830 mm
Counterweight Clearance 3.4 ft 1050 mm
Ground Clearance 1.7 ft 470 mm
Track Length 14.7 ft 4450 mm
Length to Center of Rollers 12 ft 3650 mm
Track Gauge 7.8 ft 2380 mm
Transport Width 9.9 ft 2980 mm
Air Conditioning The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 0.85 kg (1.9 lb) of refrigerant which has a CO2 equivalent of 1.216 metric tonnes (1.340 tons). The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 0.85 kg (1.9 lb) of refrigerant which has a CO2 equivalent of 1.216 metric tonnes (1.340 tons).

323 Standard Equipment

NOTE

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

CAB

  • Rollover Protective Structure (ROPS)
  • Mechanically adjustable seat (Comfort only)
  • Air-adjustable seat with heat (Deluxe only)
  • High-resolution 203 mm (8 inch) LCD touchscreen monitor

CAT TECHNOLOGY

  • VisionLink™
  • Remote Flash
  • Remote Troubleshoot
  • Work tool recognition and tracking (PL161)
  • Cat Grade with 2D
  • Cat Assist
  • Cat Payload

ELECTRICAL

  • Two 1,000 CCA maintenance-free batteries
  • Programmable time-delay LED working lights
  • LED chassis light, left and right hand boom lights for reach , cab lights-850 lumens

ENGINE

  • Cat 7.1 single turbo diesel engine
  • Automatic engine speed control
  • 52º C (125º F) high-ambient cooling capacity
  • -18° C (- 0° F) cold start capability
  • Double element air filter with integrated precleaner
  • Reversing electric cooling fans

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

  • 2D E-Fence
  • Auto hammer stop
  • Rearview camera
  • Ground-level engine shutoff switch
  • Lockable disconnect switch
  • Right-hand handrail and handhold
  • Signaling/warning horn

SERVICE AND MAINTENANCE

  • Sampling ports for Scheduled Oil Sampling (S·O·S℠)
  • Ground-level and platform-level engine oil dipsticks
  • Integrated vehicle health management system

UNDERCARRIAGE AND STRUCTURES

  • Tie-down points on base frame

323 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 (9'6") HD Reach stick
  • 2.5 (8'2") HD Reach stick
  • 2.9 (9'6") Reach stick
  • 2.5 (8'2") Reach stick
  • 6.28 m (20'7") Super Long Reach stick

CAB

  • Operator Protective Guards (OPG)
  • High resolution 10" (254 mm) LCD touch screen monitor
  • Cat Stick Steer
  • Auxiliary relay

CAT TECHNOLOGY

  • Operator Coaching
  • Cat Grade with 2D with Attachment Ready Option (ARO)
  • Cat Grade with 3D (single or dual GNSS)
  • Cat Grade 3D Ready
  • Cat Advanced Payload
  • Cat Tiltrotator (TRS) integration

ELECTRICAL

  • Four 1,000 CCA maintenance-free batteries

ENGINE

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

HYDRAULIC SYSTEM

  • Hammer return filter circuit
  • Combined flow/high pressure auxiliary circuit
  • Hydraulic efficiency monitoring
  • Quick coupler circuit for Cat Pin Grabber

SAFETY AND SECURITY

  • Cat Command (remote control)
  • 360° visibility
  • Inspection lighting
  • Swing alarm

UNDERCARRIAGE AND STRUCTURES

  • 600 mm (24") HD triple grouser shoes
  • 600 mm (24") double grouser shoes
  • 700 mm (28") HD triple grouser shoes
  • 790 mm (31") HD triple grouser shoes
  • 5400 kg (11,900 lb) counterweight
  • 4200 kg (9,300 lb) counterweight

Compatible Technology and Services

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Cat® Inspect allows you to access your equipment data on your mobile device. This easy-to-use app lets you capture inspection data and integrates with your other Cat data systems, so you can keep a close eye on your fleet. More than one million inspections are completed each year, providing convenience and accountability to equipment owners.

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Remote Flash sends an alert from your Cat dealer, prompting you to update the software on your machine. To minimize downtime, updates can be deployed while on the jobsite without having to wait for a dealer technician to arrive. Remote flash decreases maintenance time and keeps your asset running with maximum efficiency.

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Remote Troubleshoot allows your Cat dealer to run testing while the machine is operating. Once the problem is identified, a technician can fix it with the correct parts and tools the first time, saving time and money. Remote Troubleshoot decreases maintenance time and keeps your machine running with maximum efficiency.

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VisionLink™ is a cloud-based software application that takes the guesswork out of fleet management with key insights to maximize performance - regardless of fleet size or equipment manufacturer. Receive equipment data seamlessly to your desktop or mobile device, all from a convenient centralized solution to make informed decisions at every turn.

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Next generation excavators take on all kinds of tasks - loading, stockpiling, material handling, and more. Cat® Payload technology provides on-the-go weighing to help operators hit exact targets every time and avoid overloading, underloading, or misloading materials.

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Operator Coaching allows operators of all experience levels to take their efficiency and productivity to the next level. With tips and data at their fingertips, operators can track and improve their productivity through everyday work on the job site.

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