Sign In
Welcome! Sign In to personalize your Cat.com experience
If you already have an existing account with another Cat App, you can use the same account to sign in here
Register Now
One Account. All of Cat.
Your Caterpillar account is the single account you use to log in to select services and applications we offer. Shop for parts and machines online, manage your fleet, go mobile, and more.
Account Information
Site Settings
Security
Move from road to rail with ease & expand your work capabilities.
A Cat® C4.4 engine and powerful hydraulics give you the power to move your material with speed and precision.
Flexible machine configurations and a variety of attachments allow you to customize your machine your machine to fit your needs.
Key Specs
The Cat® M323F is a versatile, high capacity railroad wheeled excavator that gives you the freedom to move from road to rail with ease – without compromising performance. The M323F railroad excavator allows you to expand your work to new terrains.
Move from road to rail with ease & expand your work capabilities.
A Cat® C4.4 engine and powerful hydraulics give you the power to move your material with speed and precision.
Flexible machine configurations and a variety of attachments allow you to customize your machine your machine to fit your needs.
| Engine Model | Cat C4.4 Cat C4.4 |
| Engine Power - Maximum Net - ISO 9249/SAE J1349 - Metric | 112 kW (150 hp/152 PS) 112 kW (150 hp/152 PS) |
| Stroke | 5 in 127 mm |
| Maximum Torque - 1,400 rpm | 524 ft-lb 710 N·m |
| Engine Power - Maximum Gross - ISO 14396 | 117 kW (157 hp/159 PS) 117 kW (157 hp/159 PS) |
| Number of Cylinders - In Line | 4 4 |
| Bore | 4 in 105 mm |
| Ratings | 2000 r/min 2000 r/min |
| Displacement | 269 in³ 4.4 l |
| Note | Meets stage IV emission standards Meets stage IV emission standards |
| Maximum Travel Speed - Road Mode | 12.4 mile/h 20 km/h |
| Drawbar Pull - Road Mode | 23380 lbf 104 kN |
| Maximum Travel Speed - Rail Mode | 12.4 mile/h 20 km/h |
| Drawbar Pull - Rail Mode | 10116 lbf 45 kN |
| Maximum Swing Torque | 30978 ft·lbf 42 kg/m² |
| Maximum Swing Speed | 9 r/min 9 r/min |
| Road Ground Clearance | 1.2 ft 360 mm |
| Rail Ground Clearance | 0.7 ft 195 mm |
| Diesel Exhaust Fluid (DEF) | 5 gal (US) 19 l |
| Fuel Tank - Total Capacity | 63.4 gal (US) 240 l |
| Operating Weight* | 22 900 kg - 23 900 kg (50,486 - 52,590 lb) 22 900 kg - 23 900 kg (50,486 - 52,590 lb) |
| Counterweights - Standard | 14110 lb 6400 kg |
| Counterweights - Optional | 16314 lb 7400 kg |
| Note | Operating weight includes medium stick, full fuel tank, operator and dual pneumatic tires. Weight varies depending on configuration. Operating weight includes medium stick, full fuel tank, operator and dual pneumatic tires. Weight varies depending on configuration. |
| Maximum Pressure - Implement Circuit - Normal | 5076 psi 35000 kPa |
| Maximum Flow - Swing Mechanism | 21 gal/min 80 l/min |
| Maximum Flow - Auxiliary Circuit - High Pressure | 63 gal/min 240 l/min |
| Maximum Pressure - Implement Circuit - Travel Circuit | 5076 psi 35000 kPa |
| Maximum Flow - Auxiliary Circuit - Medium Pressure | 13 gal/min 49 l/min |
| Maximum Pressure - Auxiliary Circuit - High Pressure | 5076 psi 35000 kPa |
| Tank Capacity | 32 gal (US) 122 l |
| Swing Mechanism | 5366 psi 37000 kPa |
| System | 63 gal (US) 240 l |
| Maximum Flow - Implement/Travel Circuit | 63 gal/min 240 l/min |
| Maximum Pressure - Implement Circuit - Heavy Lift | 5439 psi 37500 kPa |
| Maximum Pressure - Auxiliary Circuit - Medium Pressure | 2683 psi 18500 kPa |
| Stick Length | 6.9 ft 2100 mm |
| Stick Digging Force - ISO 6015 | 18884 lbf 84 kN |
| Digging Depth | 18.4 ft 5610 mm |
| Digging Height | 33 ft 10070 mm |
| Boom Type | VA Boom VA Boom |
| Reach at Ground Level | 29.8 ft 9090 mm |
| Dump Height | 22.7 ft 6920 mm |
| Bucket Digging Force - ISO 6015 | 25628 lbf 114 kN |
| Note | Range values are calculated with GD Bucket 1100 mm, 0.80 m3 with tips K080 and CW-20-H.4.N quick coupler with a tip radius of 1574 mm. Breakout force values are calculated with heavy lift on (no quick coupler)and a cutting edge tip radius of 1237 mm. Range values are calculated with GD Bucket 1100 mm, 0.80 m3 with tips K080 and CW-20-H.4.N quick coupler with a tip radius of 1574 mm. Breakout force values are calculated with heavy lift on (no quick coupler)and a cutting edge tip radius of 1237 mm. |
| Recyclability | 93% 93% |
Leverage Caterpillar connected data and security principles to improve efficiencies, increase productivity and make your business more profitable.
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.
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.
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.
The Cat PL161 Attachment Tracker is the most advanced OEM integrated solution for attachment tracking. The PL161 mounts easily to your attachments or anything else you want to track.
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.
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.
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.
The Cat PL161 Attachment Tracker is the most advanced OEM integrated solution for attachment tracking. The PL161 mounts easily to your attachments or anything else you want to track.
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.
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.
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.
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.
Cat® Technology for construction helps contractors meet production goals and improve efficiencies.
Learn More
