323 - Tier 4 / Stage V

Medium Excavators 323 - Tier 4 / Stage V

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Key Specs

Net Power - ISO 9249
172 HP
128.5 kW
Operating Weight
55100 lb
25000 kg
Maximum Digging Depth
22.1 ft
6730 mm

Overview

High Performance with Speed and Efficiency

The Cat® 323 delivers power, speed, and high production performance. With more standard technology than previous models, plus reduced fuel and maintenance costs, the Cat 323 has all you need to take your business to the next level.

Benefits

Up To 20% Less Fuel Consumption

A precise combination of lower engine speed and a large hydraulic pump delivers top performance while burning less fuel.

Up To 25% Lower Maintenance Costs

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

Up To 45% More Operating Efficiency

Offering the industry’s highest level of standard factory-equipped technology, including Cat Grade with 2D, Grade with Assist and Payload.

Up To 22% Less CO2 Emissions

The 323 emits up to 22% less CO2 than the previous 323F.

Product Specifications for 323 - Tier 4 / Stage V

Net Power - ISO 9249 172 HP 128.5 kW
Net Power - ISO 9249 (DIN) 175 hp (metric) 175 hp (metric)
Engine Model Cat C7.1 Cat C7.1
Engine Power - ISO 14396 174 HP 129.4 kW
Engine Power - ISO 14396 (DIN) 176 hp (metric) 176 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 U.S. EPA Tier 4 Final, EU Stage V, and Japan 2014 emission standards. Meets U.S. EPA Tier 4 Final, EU Stage V, and Japan 2014 emission standards.
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 2,200 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 2,200 rpm. Advertised power is tested per the specified standard in effect at the time of manufacture.
Note (2) ¹Cat diesel engines are required to use ULSD (ultra-low sulfur diesel fuel with 15 ppm of sulfur or less) or ULSD blended with the following lower-carbon intensity fuels** up to: 20% 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. *Engines with no aftertreatment devices can use higher blends, up to 100% biodiesel (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 diesel engines are required to use ULSD (ultra-low sulfur diesel fuel with 15 ppm of sulfur or less) or ULSD blended with the following lower-carbon intensity fuels** up to: 20% 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. *Engines with no aftertreatment devices can use higher blends, up to 100% biodiesel (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.
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 Speed 11.25 r/min 11.25 r/min
Maximum Swing Torque 60300 ft·lbf 82 kN·m
Operating Weight 55100 lb 25000 kg
Note Long undercarriage, Reach boom, R2.9 (9'6"), Reach stick, Heavy Duty (HD) 1.38 m³ (1.81 yd³) bucket, 790 mm (31") HD triple grouser track shoes and 5,400 kg (11,900 lb) counterweight. Long undercarriage, Reach boom, R2.9 (9'6"), Reach stick, Heavy Duty (HD) 1.38 m³ (1.81 yd³) bucket, 790 mm (31") HD triple grouser track shoes and 5,400 kg (11,900 lb) counterweight.
Fuel Tank Capacity 86.6 gal (US) 345 l
Cooling System 6.6 gal (US) 25 l
Engine Oil 6.6 gal (US) 25 l
Swing Drive - Each 1.6 gal (US) 6 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 10.8 gal (US) 41 l
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 HD 1.30 m³ (1.71 yd³) HD 1.30 m³ (1.71 yd³)
Shipping Height - Top of Cab 9.7 ft 2960 mm
Handrail Height 9.7 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 1.5 ft 470 mm
Track Length 14.6 ft 4450 mm
Length to Center of Rollers 12 ft 3650 mm
Track Gauge 7.8 ft 2380 mm
Transport Width 10.4 ft 3170 mm
Maximum Digging Depth 22.1 ft 6730 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 HD 1.30 m³ (1.71 yd³) HD 1.30 m³ (1.71 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 21.5 ft 6560 mm
Maximum Vertical Wall Digging Depth 18.8 ft 5740 mm
Bucket Digging Force - ISO 34308 lbf 140 kN
Stick Digging Force - ISO 26094 lbf 107 kN
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).
Recyclability 98% 98%

323 - Tier 4 / Stage V 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 in) LCD touchscreen monitor

CAT TECHNOLOGY

  • VisionLink®
  • Remote Flash
  • Remote Troubleshoot
  • Cat Grade 2D
  • Cat Assist
  • Cat Payload

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 7.1 single turbo diesel engine
  • Three selectable power modes
  • Automatic engine speed control
  • 46°C (115°F) high-ambient cooling capacity (Europe only)
  • 52°C (125°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 hydraulic warm up
  • Auto two-speed travel
  • Boom and stick drift reduction valve
  • Auto dig boost
  • Auto heavy lift

SAFETY AND SECURITY

  • 2D E-Fence
  • Auto hammer stop
  • Rearview camera
  • Right-side-view camera
  • Lockable disconnect switch
  • Ground-level engine shutoff 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 - Tier 4 / Stage V 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
  • 2.7 m (8'10") stub + 3.3 m (10'10") fore, Variable Angle 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 (Chile, Turkey only)
  • 2.9 m (9'6") HD Reach stick (Chile, Turkey only)
  • 3.9 m (12'10") 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

CAT TECHNOLOGY

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

ENGINE

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

HYDRAULIC SYSTEM

  • Boom and stick lowering check valves
  • SmartBoom™ (Europe only)
  • Hammer return filter circuit
  • Advanced tool control (two pump, one/two way high-pressure flow)
  • Hydraulic efficiency monitoring
  • Medium-pressure circuit
  • Quick coupler circuit for Cat Pin Grabber

SAFETY AND SECURITY

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

UNDERCARRIAGE AND STRUCTURES

  • 600 mm (24") single grouser shoes
  • 600 mm (24") HD double grouser shoes
  • 600 mm (24") HD triple grouser shoes
  • 700 mm (28") HD triple grouser shoes
  • 790 mm (31") HD triple grouser shoes
  • 900 mm (35") HD triple grouser shoes
  • 4200 kg (9,300 lb) counterweight

Compatible Technology and Services

Leverage Caterpillar connected data and security principles to improve efficiencies, increase productivity and make your business more profitable.

  • Cat Grade Assist for Excavators

    Cat Grade Assist for excavators automates boom and stick movements for more accurate cuts with less effort. Grade Assist uses machine position sensors and operator defined depth and slope parameters to enable single-lever digging.

  • Cat Lift Assist for Excavators

    Cat Lift Assist is an excavator safety feature that quickly calculates the actual load you are lifting and compares it to the rated load the excavator is capable of handling. Visual and auditory alerts tell you if you are within safe working range or need to take action to avoid tipping.

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Cat Grade Assist for excavators automates boom and stick movements for more accurate cuts with less effort. Grade Assist uses machine position sensors and operator defined depth and slope parameters to enable single-lever digging.

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Cat Lift Assist is an excavator safety feature that quickly calculates the actual load you are lifting and compares it to the rated load the excavator is capable of handling. Visual and auditory alerts tell you if you are within safe working range or need to take action to avoid tipping.

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    Cat Command for Excavating is a remote control option that contributes to jobsite safety by allowing operators to run an excavator remotely in hazardous applications.

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Cat Command for Excavating is a remote control option that contributes to jobsite safety by allowing operators to run an excavator remotely in hazardous applications.

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Cat Command is an advanced remote control system that takes operators off the machine and away from potential dangers when working with hazardous materials or in unsafe conditions. The system's deep integration with machine systems ensures smooth and precise control for optimal efficiency and productivity.

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  • Cat 2D E-fence for Excavators

    Cat® 2D E-fence keeps the front linkage within a predefined work area to avoid hazards like traffic. 2D E-fence uses data from position sensors to automatically stop motion when the front linkage reaches the defined boundaries.

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Cat® 2D E-fence keeps the front linkage within a predefined work area to avoid hazards like traffic. 2D E-fence uses data from position sensors to automatically stop motion when the front linkage reaches the defined boundaries.

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  • Cat Inspect

    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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    Cat® Product Link™ wirelessly connects you to your equipment giving you valuable insight into how your machine or fleet is performing. Information such as location, hours, fuel usage, productivity, idle time, and diagnostic codes are made available through online web applications so that you can make timely, fact-based decisions to maximize efficiency, improve productivity, and lower the cost of owning and operating your fleet. Available with satellite or cellular connectivity.

  • Cat Remote Flash

    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.

  • Cat Remote Troubleshooting

    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.

  • VisionLink®

    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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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.

Explore Technology

Cat® Product Link™ wirelessly connects you to your equipment giving you valuable insight into how your machine or fleet is performing. Information such as location, hours, fuel usage, productivity, idle time, and diagnostic codes are made available through online web applications so that you can make timely, fact-based decisions to maximize efficiency, improve productivity, and lower the cost of owning and operating your fleet. Available with satellite or cellular connectivity.

Explore Technology

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.

Explore Technology

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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  • VisionLink® Productivity

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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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VisionLink® Productivity is an easy-to-use cloud-based platform that gathers and summarizes machine telematics and jobsite data from all your equipment. Actionable performance data is transmitted to the web platform for users to access anywhere, anytime via a mobile, tablet, or desktop device - on or off the jobsite.

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