M323

Wheel Excavators M323 Stage V

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Key Specs

Engine Power - ISO 14396
180 hp
134 kW
Operating Weight Maximum
53572 lb
24300 kg
Maximum Travel Speed - Road Mode
16 mile/h
25 km/h

Overview

Move from Road to Rail with Ease

The Cat® M323 rail excavator features a modular design with options for short-tail and long-tail configurations. The flexible drive system – tire, rail, or an innovative combination – can be switched between at the touch of a button during operation, to help ensure optimal operation in a wide variety of applications. The next generation rail excavator is purpose built for rail and is the ideal machine to help increase versatility and efficiency.

Benefits

Built For Rails

Built with specialized components that allow you to travel directly on railroad tracks while maintaining the full functionality of a traditional excavator.

High Performance

Powerful hydraulics, advanced controls, and reinforced components that handle demanding rail maintenance tasks with speed and precision.

Unmatched Versatility

Seamlessly transition between road and rail travel, handling a wide range of tasks from lifting and grading, to tie replacement and brush cutting all within a single machine.

Product Specifications for M323

Engine Power - ISO 14396 180 hp 134 kW
Engine Power - ISO 14396 (DIN) 183 hp (metric) 183 hp (metric)
Engine Model Cat C4.4 Cat C4.4
Net Power - ISO 9249 174 hp 129 kW
Net Power - ISO 9249 (DIN) 176 hp (metric) 176 hp (metric)
Bore 4 in 105 mm
Stroke 5 in 127 mm
Displacement 269 in³ 4.4 l
Biodiesel Capability Up to B20¹ Up to B20¹
Emissions Meets EU Stage V emission standards. Meets EU Stage V emission standards.
Note (1) Net power advertised is the power available at the flywheel when the engine is equipped with fan, air cleaner, Clean Emission Module (CEM) exhaust gas aftertreatment, alternator, and cooling fan running at intermediate speed. Rated speed at 1,700 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 cleaner, Clean Emission Module (CEM) exhaust gas aftertreatment, alternator, and cooling fan running at intermediate speed. Rated speed at 1,700 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) and are compatible* with 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. *While Caterpillar engines are compatible with these alternative fuels, some regions may not allow their use. **Tailpipe greenhouse gas emissions from lower-carbon intensity fuels are essentially the same as traditional fuels. ***Engines with no aftertreatment devices are compatible with higher blends, up to 100% biodiesel (for use of blends higher than 20% biodiesel, consult your Cat dealer). ¹Cat diesel engines are required to use ULSD (ultra-low sulfur diesel fuel with 15 ppm of sulfur or less) and are compatible* with 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. *While Caterpillar engines are compatible with these alternative fuels, some regions may not allow their use. **Tailpipe greenhouse gas emissions from lower-carbon intensity fuels are essentially the same as traditional fuels. ***Engines with no aftertreatment devices are compatible with higher blends, up to 100% biodiesel (for use of blends higher than 20% biodiesel, consult your Cat dealer).
Operating Weight Maximum 53572 lb 24300 kg
Operating Weight Minimum 47840 lb 21700 kg
Note (1) Operating weight includes full fuel tank, operator and pneumatic tires. Weight varies depending on configuration. Operating weight includes full fuel tank, operator and pneumatic tires. Weight varies depending on configuration.
Maximum Travel Speed - Road Mode 16 mile/h 25 km/h
Maximum Travel Speed - Rail Mode 19 mile/h 30 km/h
Main System - Maximum Flow - Implement 81 gpm 306 L/min
Maximum Pressure - Implement Circuit - Normal 5076 psi 35000 kPa
Maximum Pressure - Implement Circuit - Heavy Lift 5366 psi 37000 kPa
Maximum Pressure - Implement Circuit - Travel Circuit 5076 psi 35000 kPa
Maximum Swing Speed* 9 r/min 9 r/min
Maximum Swing Torque 38400 lbf·ft 52 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 63.4 gal (US) 240 l
Diesel Exhaust Fluid (DEF) 5 gal (US) 19 l
Cooling System 7.9 gal (US) 30 l
Hydraulic Tank 30.6 gal (US) 116 l
Hydraulic System - Including Tank 71.3 gal (US) 270 l
Boom Variable Adjustable Boom 5.2 m (17'1") Variable Adjustable Boom 5.2 m (17'1")
Stick 2 m (6'7") 2 m (6'7")
Shipping Height - Top of Cab 10.5 ft 3209 mm
Shipping Length 29.3 ft 8921 mm
Support Point 13.9 ft 4234 mm
Boom Variable Adjustable Boom 5.2 m (17'1") Variable Adjustable Boom 5.2 m (17'1")
Stick 2 m (6'7") 2 m (6'7")
Maximum Cutting Height 28.7 ft 8741 mm
Maximum Digging Depth 10.7 ft 3247 mm
Maximum Reach at Ground Line 24.1 ft 7345 mm
Stick Forces (ISO) 18659 lbf 83 kN
Bucket Forces (ISO) 26303 lbf 117 kN
Note (1) Range values are with 9A transmission and dual pneumatic tires (10.00-20). Range values at the stick end. Range values are with 9A transmission and dual pneumatic tires (10.00-20). Range values at the stick end.
Note The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a or R1234yf. See the label or instruction manual for identification of the gas. If equipped with R134a (Global Warming Potential = 1430), the system contains 0.8 kg (1.8 lb) of refrigerant which has a CO2 equivalent of 1.144 metric tonnes (1.261 tons). If equipped with R1234yf (Global Warming Potential = 0.5), the system contains 0.8 kg (1.8 lb) of refrigerant which has a CO2 equivalent of 0.0004 metric tonnes (0.0004 tons). The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a or R1234yf. See the label or instruction manual for identification of the gas. If equipped with R134a (Global Warming Potential = 1430), the system contains 0.8 kg (1.8 lb) of refrigerant which has a CO2 equivalent of 1.144 metric tonnes (1.261 tons). If equipped with R1234yf (Global Warming Potential = 0.5), the system contains 0.8 kg (1.8 lb) of refrigerant which has a CO2 equivalent of 0.0004 metric tonnes (0.0004 tons).

M323 Standard Equipment

NOTE

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

BOOM AND STICK

  • 5.2 m (17'1") VA boom, 2.0 m (6'7") stick

UNDERCARRIAGE AND STRUCTURES

  • Long or Short radius counterweight
  • Removeable counterweight for road regulation
  • Hydrostatic (9A), Friction (9C) or combined (9A and 9C) transmission
  • Road and Rail travel speed
  • Access step
  • Lifting points
  • Tie-down points
  • Tires

HYDRAULIC SYSTEM

  • Joystick with sliders and push buttons
  • Adjustable hydraulic sensitivity
  • Dedicated swing pump
  • Pump for the drive and implement
  • Programmable flow and pressure for up to 20 attachments
  • 1x High Pressure Line (HP) and 1x Medium Pressure Line (MP)

SERVICE AND MAINTENANCE

  • Ground-level fuel and engine oil filters and fluid taps
  • Ground-level fuel refueling
  • Centralized lubrication for undercarriage
  • Auto-lubrication system

SAFETY AND SECURITY

  • Emergency stop button
  • Safety decals for rail certification
  • Insulated or Non insulated wheels
  • Rail suspensions for 9A transmission
  • ROPS cab for operator and rail agent
  • Stick lowering control valve (SLCV) and boom lowering control valve (BLCV) including overload warning device
  • Bucket lowering control valve (BLCV)
  • Safe ECS monitor - Set the limit/monitor the load

CAB

  • Premium or Deluxe cab
  • Travel pedal (1-way or 2-way)

ENGINE

  • Cat C4.4 Twin Turbo
  • Altitude 3000 m (9,842 ft) capability without derating
  • Mechanical air compressor

ELECTRICAL SYSTEM

  • Rescue pump
  • Camera, Rear and Right Hand (RH) side
  • 9 working lights (1800 LM or 4200 LM)
  • Wiper
  • Speed Road and Rail (country regulation)
  • Product Link™ (Global System for Mobile [GSM] or satellite)

M323 Optional Equipment

NOTE

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

UNDERCARRIAGE AND STRUCTURES

  • Rail wheel Stone shield protection and Work Tools (WT) support
  • Towing coupler (manual or automatic)
  • Rail coupler
  • Rail towing bar
  • Tire pressure monitoring
  • Tire inflator, blow gun
  • 1M track gauge kit

HYDRAULIC SYSTEM

  • Drain line
  • Return line 25.4 mm (1")
  • 2nd HP
  • Bio hydraulic oil
  • Bio oil micro-filtration unit

SERVICE AND MAINTENANCE

  • Inspection light

SAFETY AND SECURITY

  • Air braking system for rail cars or trailers
  • Ground area proximity light
  • People detect system
  • Bird view camera
  • Access light

ELECTRICAL SYSTEM

  • 5 working lights (1800 LM or 4200 LM)
  • Refueling pump
  • UIC certified rail lights
  • Travel alarm
  • Beacon
  • Electric plug at the stick-end (permanent and switch actuated)
  • Electrical plug at the lower frame
  • Anti theft system

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M323 Railroad Excavator short tail design silhouette

M323 Railroad Excavator long tail design silhouette

M323 Railroad Excavator operators in the cab

M323 Railroad Excavator with external lights

M323 Railroad Excavator push-to-start button and controls

M323 Railroad Excavator driving in the dirt

M323 Railroad Excavator short tail design silhouette
M323 Railroad Excavator long tail design silhouette
M323 Railroad Excavator operators in the cab
M323 Railroad Excavator with external lights
M323 Railroad Excavator push-to-start button and controls
M323 Railroad Excavator driving in the dirt