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Wheel Excavators

M322 Wheel Excavator

Engine Power - ISO 14396

174 hp

Operating Weight Maximum

54,770 lb

Maximum Travel Speed

18.6 mile/h

SPECIFICATIONS

The Cat® M322 Wheel Excavator helps provide top performance with versatility from the Cat tiltrotator (TRS) integration to get the job done fast. With low maintenance costs, long service intervals, and 100 percent daily ground level check, the M322 helps save you time and money. A cab made for operator comfort helps keep you working quickly and efficiently.

    Air Conditioning System

    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 0.75 kg (1.7 lb) of refrigerant which has a CO2 equivalent of 1.073 metric tonnes (1.182 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).

    Dimensions

    Boom

    Variable Adjustable Boom 5.4 m (17'10")

    Stick

    2.9 m (9'2")

    Bucket

    GD 1.19 m³ (1.56 yd³)

    Shipping Height - Top of Cab

    11 ft

    Shipping Length

    31.1 ft

    Support Point

    11.3 ft

    Tail Swing Radius

    9.2 ft

    Counterweight Clearance

    4.4 ft

    Ground Clearance

    ft

    Undercarriage Length

    17 ft

    Wheel Base

    ft

    Drive

    Maximum Travel Speed

    18.6 mile/h

    Engine

    Engine Power - ISO 14396

    174 hp

    Engine Power - ISO 14396 (DIN)

    176 hp (metric)

    Engine Model

    Cat® C7.1

    Net Power - ISO 9249

    171 hp

    Net Power - ISO 9249 (DIN)

    174 hp (metric)

    Bore

    4.1 in

    Stroke

    5.3 in

    Displacement

    427.8 in²

    Biodiesel Capability

    Up to B20¹

    Emissions

    Meets U.S. EPA Tier 4 Final and 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 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) 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).

    Hydraulic System

    Main System - Maximum Flow - Implement

    95 gpm

    Maximum Pressure - Implement Circuit - Normal

    5,076 psi

    Maximum Pressure - Implement Circuit - Heavy Lift

    5,366 psi

    Maximum Pressure - Implement Circuit - Travel Circuit

    5,076 psi

    Machine Weight

    Operating Weight Maximum

    54,770 lb

    Operating Weight Minimum

    47,430 lb

    Note (1)

    Operating weight includes full fuel tank, operator, General Duty (GD) bucket and dual pneumatic tires. Weight varies depending on configuration. Typical configurations include 2.5 m (8'2") stick and 3500 kg (7,716 lb) counterweight.

    Service Refill Capacities

    Fuel Tank

    124.2 gal (US)

    Diesel Exhaust Fluid (DEF)

    7.9 gal (US)

    Cooling System

    10.6 gal (US)

    Hydraulic Tank

    52.8 gal (US)

    Hydraulic System - Including Tank

    107 gal (US)

    Swing Mechanism

    Maximum Swing Speed*

    8.6 r/min

    Swing Torque

    44,250 lbf·ft

    Note (1)

    *For CE-marked machine default value may be set lower.

    Working Ranges and Forces

    Boom

    Variable Adjustable Boom 5.4 m (17'10")

    Stick

    2.9 m (9'2")

    Bucket

    GD 1.19 m³ (1.56 yd³)

    Maximum Cutting Height

    35.8 ft

    Maximum Loading Height

    24.7 ft

    Maximum Digging Depth

    21.8 ft

    Maximum Vertical Wall Digging Depth

    17.3 ft

    Maximum Reach at Ground Line

    33.4 ft

    Bucket Forces (ISO)

    33,946 lbf

    Stick Forces (ISO)

    23,605 lbf

    Note (1)

    Range values are with dual pneumatic tires (11.00-20). Range values are calculated with a GD bucket (CW) and CW quick coupler with a tip radius of 1697 mm (5'7"). Force values are calculated with heavy lift on, a GD bucket (pin-on) and a tip radius of 1574 mm (5'2").

    • NOTE
      • Standard and optional equipment may vary. Consult your Cat dealer for details.
    • CAB
      • Sound-suppressed ROPS cab
      • Keyless push-to-start engine control
      • Height-adjustable console, infinite with no tool
      • High-resolution 254 mm (10 in) LCD touchscreen monitor
    • BOOM AND STICKS
      • 5.4 m (17'10") Variable Adjustable boom
    • CAT TECHNOLOGY
      • VisionLink™
      • Remote Flash and Remote Troubleshoot
    • ELECTRICAL SYSTEM
      • LED lights on chassis (left-hand, right-hand) and counterweight
      • Programmable time-delay LED working lights
      • Roading and indicator lights, front and rear
      • Maintenance-free batteries
      • Centralized electrical disconnect switch
    • ENGINE
      • Power mode selector
      • One-touch low idle with automatic engine speed control
      • Automatic engine idle shutdown
      • Up to 52°C (125°F) high-ambient cooling capacity
      • Cold start capability down to -18°C (0°F)
      • Double element air filter with integrated pre-cleaner
    • HYDRAULIC SYSTEM
      • Boom, stick, and bucket drift reduction valves
      • Automatic hydraulic oil warm up
      • Heavy lift mode
      • One-slider joysticks
    • SAFETY AND SECURITY
      • Rear and right-side-view cameras
      • Lockable disconnect switch
      • Anti-skid plate and countersunk bolts on service platform
    • SERVICE AND MAINTENANCE
      • Scheduled Oil Sampling (S·O·S℠) ports
      • Integrated vehicle health management system
    • UNDERCARRIAGE AND STRUCTURES
      • Automatic brake/axle lock
      • All wheel drive
      • 11.00-20 16 PR, dual tires

    • NOTE
      • Standard and optional equipment may vary. Consult your Cat dealer for details.
    • BOOM AND STICKS
      • 2.5 m (8'2") stick (Europe only)
      • 2.9 m (9'6") stick
    • CAT TECHNOLOGY
      • Cat Grade with 2D
      • Cat Grade with 2D with Attachment Ready Option (ARO)
      • Laser catcher
      • Cat Grade 3D ready
      • Cat Grade Connectivity
      • Cat Grade with Assist
      • Cat Payload
      • Cat Tiltrotator (TRS) Integration
    • ELECTRICAL SYSTEM
      • Electrical refueling pump
    • HYDRAULIC SYSTEM
      • Boom/stick lowering check valves
      • Two-slider joysticks
      • Joystick steering
    • SAFETY AND SECURITY
      • Wide angle mirrors
      • 360° visibility
      • Signal/warning horn
      • Inspection lighting
      • 2D E-fence
      • Cab Avoidance
    • SERVICE AND MAINTENANCE
      • Automatic lubrication system for implement and swing system
    • UNDERCARRIAGE AND STRUCTURES
      • 3500 kg (7,716 lb) counterweight (Europe only)
      • 4700 kg (10,362 lb) counterweight
    • CAB
      • Operator Protective Guards (OPG)

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