M322 Wheel Excavator

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.

M322 Wheel Excavator

Features

  • Latest Features

    Latest Features

    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*

          

    • The Cat Payload option provides operators with on-the-go weighing to help them hit load targets and avoid overloading, underloading, or misloading materials.

    *Payload technologies are not legal for trade.

    Not all features are available in all regions. Please check with your Cat dealer for specific offering availability in your area. Build Number: 07E

  • High Performance

    High Performance

          

    • The Cat engine matches to your performance and production needs. The engine meets U.S. EPA Tier 4 Final and EU Stage V emission standards.
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    • The M322 is fuel efficient to help keep you moving and productive on the jobsite.
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    • Easily travel between sites with travel speeds up to 30 km/h (18.6 mph).
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    • From dirt to asphalt, the excavator matches your needs to help get the job done in a timely, efficient manner.
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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 working requirements.
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    • The dedicated swing pump helps provide consistent power for better multitasking capabilities.
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    • High swing torque helps you get the job done fast to move on to the next one.
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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 52°C (125°F) and cold start capability of -18°C (0°F).
  • Work in Comfort

    Work in Comfort

          

    • The Premium seat is heated, cooled, and adjusts automatically.
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    • Get in and out of the cab easily using the tip-up left console.
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    • Advanced viscous mounts help you feel comfortable in the cab while you work with reduced cab vibrations.
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    • Control the excavator comfortably with easy-to-reach controls, all located in front of you.
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    • Stow your gear with plenty of in-cab storage beneath and behind the seat, overhead, and in the consoles. A cup holder, bottle holder, and coat hook are also provided.
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    • Bluetooth® integrated radio allows for seamless mobile phone connection to listen to music, podcasts, and hands-free calling.
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    • Easily adjust the climate control system using the touchscreen monitor or jog dial.
  • Low Maintenance Costs

    Low Maintenance Costs

          

    • Quickly check and service your machine with daily maintenance points accessible from ground level.
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    • Check the engine oil level quickly and safely from the ground.
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    • Long life filters for fuel, hydraulic oil, and air help save on maintenance costs.
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    • Track your machine’s filter life and maintenance intervals on the in-cab monitor.
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    • The fuel filtration helps protect the engine from fuel contamination.
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    • The hydraulic oil filter helps provide high filtration performance, anti-drain valves to help keep oil clean when the filter is replaced, and long life with a 3,000-hour replacement interval.
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    • Centralized grease points with an autolube option mean less downtime and more work getting done.
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    • Scheduled Oil Sampling (S•O•SSM) ports are located at ground level, helping simplify maintenance and allowing for quick, easy extraction of fluid samples for analysis.
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    • Boost productivity with proactive service reminders. The Integrated vehicle health management system alerts the operator with step-by-step service guidance along with parts needed so you don’t experience any unnecessary downtime.
  • Simple to Operate

    Simple to Operate

          

    • Start the engine with the push-to-start button, a Bluetooth key fob, or the unique Operator ID function.
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    • Program your power mode and joystick preferences using Operator ID; the excavator remembers your settings each time you go to work.
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    • Navigate quickly on the standard high-resolution 254 mm (10 in) touchscreen monitor or with the aid of the jog dial control.
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    • The axle locks at zero speed and unlocks when the travel pedal is activated. The axle can also be manually locked with a button on the right-hand console or with a joystick button.
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    • Turn on Heavy Lift mode and get more force when you need it.
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    • Cat continues to improve user interface functionality for operators of all skill levels. The touchscreen monitor is an easy-to-use operating tool that presents the jobsite dashboard with an intuitive format. Productivity applications are displayed in grid-view to read on-the-go, and touchscreen navigation is programmed to make sure job performance continues without any hold ups.
  • Safety Features

    Safety Features

          

    • Access daily maintenance points from ground level.
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    • Keep your excavator secure with Operator ID. Use your PIN code on the monitor to enable the push button starting feature.
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    • The standard Rollover Protective Structure (ROPS) cab meets ISO 12117-2:2008 requirements.
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    • Enjoy great all-around visibility with the help of small cab pillars, large windows, and a flat engine hood design. Rear and right-side-view cameras are standard.
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    • The service platform design helps provide easy, safe, and quick access to the upper service platform; the service platform steps use anti-skid punch plate to help prevent slipping.
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    • The standard hydraulic lockout lever isolates all hydraulic and travel functions in the lowered position.
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    • The travel and swing lock prevent the front linkage and upper frame from moving as you travel.
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    • The ground-level shutoff switch stops all fuel to the engine when activated and shuts down the machine.
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    • Optional inspection lighting helps make service work easy and safe. With the flip of a switch, lights will illuminate the engine, pump, battery, and radiator compartments to enhance visibility.
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    • Optional Operator Protective Guards (OPG) protect from falling and flying debris.
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    • Optional Cab Avoidance helps you avoid contact between your worktool attachment and the cab.
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    • Optional 2D E-fence is integrated right out of the factory to prevent the excavator from moving outside operator defined set points.
  • Integrated Cat® Technologies

    Integrated Cat® Technologies

          

    • The latest operator oriented User Interface (UI) has been designed to help maximize uptime.
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    • 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. Dashboards provide information such as hours, miles, location, idle time, and fuel utilization. Make informed decisions that lower costs, simplify maintenance, and improve safety and security on your jobsite.
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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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    • 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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    • Optional Cat Grade with 2D system helps boost productivity versus traditional grading.
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    • Optional Cat Grade with Assist helps you stay on grade – simply and effortlessly – with single-lever digging. 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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    • Optional Cat Payload helps you achieve precise load targets to improve your operating efficiency. Pick up a load of material with a bucket and get a real-time weight estimate without swinging.

    *Data field availability can vary by equipment manufacturer.

  • Sustainability

    Sustainability

          

    • The Cat C7.1 engine meets U.S. EPA Tier 4 Final and EU Stage V emission standards.
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    • Cat 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.
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    • Auto Engine Speed Control reduces unnecessary fuel burn and greenhouse gas emissions by allowing the engine to automatically go into idle mode when the machine is not working.
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    • Extended maintenance intervals not only reduce downtime but decrease the amount of fluid and filters that are replaced over the life of the machine.
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    • Cat Scheduled Oil Sampling (S•O•SSM) Services helps reveal excessive wear, contaminated fluids or other “unseen” issues that can shorten component life. In many cases, you can extend oil and coolant change intervals by using fluid monitoring. Consult your Cat dealer or the machine’s operation and maintenance manual for more information.
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    • Remote Flash minimizes downtime and maintenance time while keeping your asset running with maximum efficiency. Alerts for machine updates are sent virtually from your Cat dealer and updates can be deployed without a dealer technician needing to be onsite.
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    • Remote Troubleshoot decreases maintenance time and keeps your machine running with maximum efficiency by allowing your Cat dealer to virtually test the machine while working. Once a problem is identified, a technician can fix it the first time, saving time and money.
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    • Cat Grade technologies combine advanced guidance with optional automated machine control helping you reach grading targets while reducing fuel burn and greenhouse gas emissions by improving efficiency, jobsite productivity, and accuracy.
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    • Cat Payload for excavators provides on-the-go material weighing which helps reduce fuel burn by improving loading efficiency, jobsite productivity, and eliminating trips to the scale.

    *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.

Specifications

Units for specifications

Engine

Engine Power - ISO 14396 174 hp 129 kW
Engine Power - ISO 14396 (DIN) 176 hp (metric) 176 hp (metric)
Engine Model Cat® C7.1
Net Power - ISO 9249 171 hp 128 kW
Net Power - ISO 9249 (DIN) 174 hp (metric) 174 hp (metric)
Bore 4.1 in 105 mm
Stroke 5.3 in 135 mm
Displacement 427.8 in² 7 l
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) 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.

Drive

Maximum Travel Speed 18.6 mile/h 30 km/h

Hydraulic System

Main System - Maximum Flow - Implement 95 gpm 360 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

Swing Mechanism

Maximum Swing Speed* 8.6 r/min 8.6 r/min
Swing Torque 44250 lbf·ft 60 kN·m
Note (1) *For CE-marked machine default value may be set lower.

Machine Weight

Operating Weight Maximum 54770 lb 24845 kg
Operating Weight Minimum 47430 lb 21515 kg
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) 470 l
Diesel Exhaust Fluid (DEF) 7.9 gal (US) 30 l
Cooling System 10.6 gal (US) 40 l
Hydraulic Tank 52.8 gal (US) 200 l
Hydraulic System - Including Tank 107 gal (US) 405 l

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 3350 mm
Shipping Length 31.1 ft 9485 mm
Support Point 11.3 ft 3430 mm
Tail Swing Radius 9.2 ft 2800 mm
Counterweight Clearance 4.4 ft 1330 mm
Ground Clearance 1 ft 320 mm
Undercarriage Length 17 ft 5175 mm
Wheel Base 9 ft 2750 mm

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 10900 mm
Maximum Loading Height 24.7 ft 7520 mm
Maximum Digging Depth 21.8 ft 6650 mm
Maximum Vertical Wall Digging Depth 17.3 ft 5290 mm
Maximum Reach at Ground Line 33.4 ft 10190 mm
Bucket Forces (ISO) 33946 lbf 151 kN
Stick Forces (ISO) 23605 lbf 105 kN
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").

Air Conditioning System

Note The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 1.0 kg of refrigerant which has a CO2 equivalent of 1.43 metric tonnes.

Standard Equipment

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
  • 52°C (125°F) high-ambient cooling capacity
  • Cold start capability -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

Optional Equipment

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)

Videos

  • Stick Steer for Cat® Excavators
M322 Wheel Excavator

Documents

Related Attachments