Wheel Excavators M322

Request A Price Find Dealer

Key Specs

Engine Power - ISO 14396:2002: 174 hp; 129 kW

Operating Weight Maximum: 52911 lb; 24000 kg

Forward/Reverse - 2nd Gear: 18.6 mile/h; 30 km/h

M322
Change model

Overview

OPTIMAL EFFICIENCY WITH TECHNOLOGY AND EASY MAINTENANCE

Working hard has never been easier than with the Cat® M322 Wheeled Excavator. This machine is designed to help you take on a wide variety of challenges at a lower cost. The Cat M322 plays its part in optimizing the operator’s efficiency to increase cash flow. Enjoy the versatility, precision, and efficiency offered by integrated solutions like Cat Grade and Payload technologies. Combined with simplified maintenance, the M322 keeps you working quickly and easily.

Benefits

IMPROVED PERFORMANCE

A Cat® C7.1 engine and powerful hydraulics give you the power to move your material with speed and precision.

UP TO 5% LOWER MAINTENANCE COSTS

With extended and more synchronized maintenance intervals, you get more done at a lower cost compared to the previous model.

UP TO 45% INCREASED OPERATOR EFFICIENCY

Work faster with improved rotational movement and lower DEF and fuel consumption. Optional Grade, Payload, and E-Fence technologies provide additional versatility, precision, and efficiency.

Features At A Glance

Cab Monitor Improvements

Continuously improved user interface allows for intuitive navigation, minimizing performance interruption with the easy-to-use touchscreen menu.
Identify apps quickly with a grid list view, abbreviated app names, and categorized menu options.
A new notification center keeps important information visible to the operator, and displays messages without shrinking the camera view.
Color coded notifications set critical messages apart from the rest.
Use the in-monitor QR code to learn about machine and technology features through a full suite of “how-to” videos.

Enhance visibility to make service work easier and safer with optional inspection lighting.
Standard integrated vehicle health management system alerts the operator with service guidance and parts needed to enhance uptime.

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

The Cat C7.1 engine matches your performance and production needs.
Up to 5 percent lower fuel consumption compared to M322F.
Built-in fuel savers like Auto Engine Speed Control and Engine Idle Shutdown eliminate waste.
Dedicated swing pump allows faster, smoother combined movements.
Auxiliary hydraulic options give you the versatility to use a wide range of Cat attachments.

Travel easily between jobsites with travel speeds up to 30 km/h (19 mph).
Joystick buttons/sliders can be set up as desired by the operator.
Enhanced swing lock makes it possible to lock swing and front linkage independently.
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).

Start the engine with the push-to-start button, a Bluetooth key fob, or the unique Operator ID function.
Everything can be adjusted in the cab from the steering column height to the electrically adjustable mirrors.
Large split-screen monitor to allow quick view of multiple cameras on the same display.
Program your power mode and joystick preferences using Operator ID; the excavator remembers your settings each time you go to work.
Navigate quickly on the standard high-resolution 254 mm (10 inch) touchscreen monitor or with the aid of the jog dial control.
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.
Tiltrotator attachments--ours or other brands--work seamlessly with Cat 2D Grade, Assist, Payload, and E-Fence . With no additional hardware required, all you have to do is simply select "Third Party Tiltrotator System Installation" in the monitor, do the calibration, and get to work.
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.

The service platform design provides easy, safe, and quick access to the cab; the steps use an anti-skid punch plate to prevent slipping.
Operator works in clean air thanks to the cabin filtration system that includes precleaner, a recirculation filter, and a cabin pressure monitor.
Keep your excavator secure with Operator ID. Use your PIN code on the monitor to enable the pushbutton starting feature.
For a clearer view of the jobsite, whether during the day or in the dark, the M322 has large glass areas, rear/side cameras, and LED lamps for all working lights.
Make service work easier and safer with optional inspection lighting. With the flip of a switch, lights will illuminate the engine, pump, battery, and radiator compartments to enhance visibility.

Quickly check and service your machine with all daily maintenance points accessible from ground level.
Up to 5 percent lower maintenance costs vs. previous model with the same productivity.
Track your machine's filter life and maintenance intervals on the in-cab monitor.
The hydraulic oil filter provides improved filtration performance, anti-drain valves to keep oil clean when the filter is replaced, and longer life with a 3,000-hour replacement interval - 50 percent longer than previous filter designs.
S-O-S ports are located at ground level, simplifying maintenance and allowing for quick, easy extraction of fluid samples for analysis.
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.

Boost productivity versus traditional grading with optional Cat Grade with 2D system.
Optional Cat Payload helps you achieve precise load targets to improve your operating efficiency. Pick up a load of material--with a bucket and thumb combination or grapple and clamshell attachments--and get a real-time weight estimate without swinging.
Combine Payload with VisionLink® and remotely manage your production targets or take payload data with you.
Upgrade to our dual antenna GNSS for maximum grading efficiency. The system lets you create and edit designs on the touchscreen monitor while you’re on the job, or you can have the plan design sent to the excavator to make your work easier. Plus, you get added benefits of avoidance zones, cut and fill mapping, lane guidance, and augmented reality along with advanced positioning capability.
Optional Grade 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
Optional 2D E-fence is integrated right out of the factory to prevent the excavator from moving outside operator defined set points.
All Cat Grade systems are compatible with radios and base stations from Trimble, Topcon, and Leica. Already invested in a grade infrastructure? You can install grade systems from Trimble, Topcon, and Leica onto the machine.

The Cat® C7.1 engine meets U.S. EPA Tier 4 Final and EU Stage V
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.
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, job site productivity, and accuracy.
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.
Cat® Payload for excavators provides on-the-go material weighing which helps reduce fuel burn by improving loading efficiency, job site productivity, and eliminating trips to the scale.
Extended maintenance intervals not only reduce downtime but decrease the amount of fluid and filters that are replaced over the life of the machine.
Cat Scheduled Oil Sampling (S•O•S℠) 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.
Don't waste fuel idling. Cat VisionLink® online fleet monitoring helps you manage idle time and reduce fuel burn and greenhouse gas emissions. VisionLink® displays the CO2 emissions for monitored assets, calculated by fuel type for the Runtime Fuel Burned each day in a selected date range.
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. 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.

*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 Standard Equipment Optional Equipment

Product Specifications for M322

Engine

Engine Power - ISO 14396:2002	174 hp 129 kW
Engine Power - ISO 14396 (DIN)	176 hp (metric) 176 hp (metric)
Engine Model	C 7.1 C 7.1
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
Displacement	427.8 in² 7 l
Stroke	5.3 in 135 mm
Biodiesel Capability	Up to B20¹ Up to B20¹
Emissions	Meets U.S. EPA Tier 4 Final, EU Stage V, Japan 2014 emission standards. Meets U.S. EPA Tier 4 Final, EU Stage V, Japan 2014 emission standards.
Note (1)	Net power advertised is the power available at the flywheel when the engine is equipped with fan, air cleaner, CEM exhaust gas aftertreatment, alternator, and cooling fan 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 cleaner, CEM exhaust gas aftertreatment, alternator, and cooling fan 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.

Hydraulic System

Main System - Maximum Flow - Implement	95 gal/min 360 l/min
Maximum Pressure - Implement Circuit - Heavy Lift	5366 psi 37000 kPa
Maximum Pressure - Implement Circuit - Travel Circuit	5076 psi 35000 kPa
Maximum Pressure - Implement Circuit - Normal	5076 psi 35000 kPa

Swing Mechanism

Swing Torque

44250 lb/ft 60 kN·m

Machine Weight

Operating Weight Maximum	52911 lb 24000 kg
Operating Weight Minimum	44750 lb 20300 kg

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
Engine Oil	3.4 gal (US) 13 l
Hydraulic Tank	52.8 gal (US) 200 l
Hydraulic System - Including Tank	71.3 gal (US) 270 l

Transmission

Forward/Reverse - 2nd Gear	18.6 mile/h 30 km/h
Forward/Reverse - 1st Gear	5.6 mile/h 9 km/h
Creeper Speed - 1st Gear	3.4 mile/h 5.5 km/h
Creeper Speed - 2nd Gear	9.3 mile/h 15 km/h
Drawbar Pull	28551 lbf 127 kN
Maximum Gradeability	70% 70%

Dimensions

Boom	VA 5.4m (17'10") VA 5.4m (17'10")
Stick	2.9m (9'2") 2.9m (9'2")
Shipping Height with Falling Object Guard	11 ft 3350 mm
Support Point	11.3 ft 3430 mm
Shipping Length	31.1 ft 9485 mm
Tail Swing Radius	9.2 ft 2800 mm
Counterweight Clearance	4.3 ft 1330 mm
Ground Clearance	1.25 ft 320 mm
Wheel Base	9 ft 2750 mm

Working Ranges and Forces

Boom Type	VA 5.4m (17'10") VA 5.4m (17'10")
Stick	2.9m (9'2") 2.9m (9'2")
Bucket	GD 1.2 m³ (1.7 yd³) GD 1.2 m³ (1.7 yd³)
Maximum Loading Height	24.7 ft 7520 mm
Cutting Height	35.8 ft 10900 mm
Maximum Digging Depth	21.8 ft 6650 mm
Reach at Ground Level	33.4 ft 10190 mm
Vertical Wall Digging Depth	17.3 ft 5290 mm
Bucket Forces (ISO)	33946 lbf 151 kN
Stick Forces (ISO)	23605 lbf 105 kN
Maximum Depth Cut for 2440 mm (8 ft) Level Bottom	21.6 ft 6560 mm

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 kg of refrigerant which has a CO2 equivalent of 1.43 metric tonnes. The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 1 kg of refrigerant which has a CO2 equivalent of 1.43 metric tonnes.

M322 Standard Equipment

NOTE

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

CAB

ROPS, advanced sound suppression

Premium cab with auto-adjustable seat and air ventilation

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

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 auto engine speed control

Auto engine idle shutdown

52°C (125°F) high-ambient cooling capacity

Cold start capability-18°C (0°F)

Double element air filter with integrated precleaner

Electric fuel priming pump

On-demand electric cooling fans

HYDRAULIC SYSTEM

Automatic swing brake

Auto hydraulic oil warm up

Electronic main control valve

Boom, stick, and bucket drift reduction valves

1-slider joystick

Heavy lift mode

Separate dedicated swing pump

Boom, stick, and bucket drift reduction valves

SAFETY AND SECURITY

Rear- and right-side-view cameras

Ground-level engine shutoff switch

Anti-skid plate and countersunk bolts on service platform

SERVICE AND MAINTENANCE

Sampling ports for Scheduled Oil Sampling (S·O·S)

Integrated vehicle health management system

UNDERCARRIAGE AND STRUCTURES

11.00-20 16 PR, dual tires

Automatic brake/axle lock

Creeper speed

All wheel drive

M322 Optional Equipment

NOTE

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

BOOM AND STICKS

2.5 m (8'2") stick

2.9 m (9'6") stick

CAT TECHNOLOGY

Cat Grade Connectivity

Cat Grade 2D

Cat Grade with Attachment Ready Option (ARO)

Cat Grade 3D dual GNSS

Laser catcher

Grade Assist

Cat Payload

Cat Tilt Rotator (TRS) Integration

ELECTRICAL SYSTEM

Electrical refueling pump

HYDRAULIC SYSTEM

2-slider joystick

Second high-pressure auxiliary circuit (one-/ two-way high-pressure flow)

Medium pressure auxiliary circuit (one-/ two-way medium-pressure flow)

Quick coupler circuit

SmartBoom

Ride control

Cat tiltrotator support

Joystick steering

Boom/stick lowering check valves

SAFETY AND SECURITY

360° visibility

Cat asset tracker

Wide angle mirrors

Signaling/warning horn

2D E-Fence

Inspection lighting

SERVICE AND MAINTENANCE

Automatic lubrication system for implement and swing system

UNDERCARRIAGE AND STRUCTURES

3500 kg (7,716 lb) counterweight

4700 kg (10,362 lb) counterweight

Product Specifications for M322

Download Print

Engine

Engine Power - ISO 14396:2002	174 hp 129 kW
Engine Power - ISO 14396 (DIN)	176 hp (metric) 176 hp (metric)
Engine Model	C 7.1 C 7.1
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
Displacement	427.8 in² 7 l
Stroke	5.3 in 135 mm
Biodiesel Capability	Up to B20¹ Up to B20¹
Emissions	Meets U.S. EPA Tier 4 Final, EU Stage V, Japan 2014 emission standards. Meets U.S. EPA Tier 4 Final, EU Stage V, Japan 2014 emission standards.
Note (1)	Net power advertised is the power available at the flywheel when the engine is equipped with fan, air cleaner, CEM exhaust gas aftertreatment, alternator, and cooling fan 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 cleaner, CEM exhaust gas aftertreatment, alternator, and cooling fan 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.

Hydraulic System

Main System - Maximum Flow - Implement	95 gal/min 360 l/min
Maximum Pressure - Implement Circuit - Heavy Lift	5366 psi 37000 kPa
Maximum Pressure - Implement Circuit - Travel Circuit	5076 psi 35000 kPa
Maximum Pressure - Implement Circuit - Normal	5076 psi 35000 kPa

Swing Mechanism

Swing Torque

44250 lb/ft 60 kN·m

Machine Weight

Operating Weight Maximum	52911 lb 24000 kg
Operating Weight Minimum	44750 lb 20300 kg

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
Engine Oil	3.4 gal (US) 13 l
Hydraulic Tank	52.8 gal (US) 200 l
Hydraulic System - Including Tank	71.3 gal (US) 270 l

Transmission

Forward/Reverse - 2nd Gear	18.6 mile/h 30 km/h
Forward/Reverse - 1st Gear	5.6 mile/h 9 km/h
Creeper Speed - 1st Gear	3.4 mile/h 5.5 km/h
Creeper Speed - 2nd Gear	9.3 mile/h 15 km/h
Drawbar Pull	28551 lbf 127 kN
Maximum Gradeability	70% 70%

Dimensions

Boom	VA 5.4m (17'10") VA 5.4m (17'10")
Stick	2.9m (9'2") 2.9m (9'2")
Shipping Height with Falling Object Guard	11 ft 3350 mm
Support Point	11.3 ft 3430 mm
Shipping Length	31.1 ft 9485 mm
Tail Swing Radius	9.2 ft 2800 mm
Counterweight Clearance	4.3 ft 1330 mm
Ground Clearance	1.25 ft 320 mm
Wheel Base	9 ft 2750 mm

Working Ranges and Forces

Boom Type	VA 5.4m (17'10") VA 5.4m (17'10")
Stick	2.9m (9'2") 2.9m (9'2")
Bucket	GD 1.2 m³ (1.7 yd³) GD 1.2 m³ (1.7 yd³)
Maximum Loading Height	24.7 ft 7520 mm
Cutting Height	35.8 ft 10900 mm
Maximum Digging Depth	21.8 ft 6650 mm
Reach at Ground Level	33.4 ft 10190 mm
Vertical Wall Digging Depth	17.3 ft 5290 mm
Bucket Forces (ISO)	33946 lbf 151 kN
Stick Forces (ISO)	23605 lbf 105 kN
Maximum Depth Cut for 2440 mm (8 ft) Level Bottom	21.6 ft 6560 mm

Air Conditioning System

Note

M322 Standard Equipment

NOTE

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

CAB

ROPS, advanced sound suppression

Premium cab with auto-adjustable seat and air ventilation

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

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 auto engine speed control

Auto engine idle shutdown

52°C (125°F) high-ambient cooling capacity

Cold start capability-18°C (0°F)

Double element air filter with integrated precleaner

Electric fuel priming pump

On-demand electric cooling fans

HYDRAULIC SYSTEM

Automatic swing brake

Auto hydraulic oil warm up

Electronic main control valve

Boom, stick, and bucket drift reduction valves

1-slider joystick

Heavy lift mode

Separate dedicated swing pump

Boom, stick, and bucket drift reduction valves

SAFETY AND SECURITY

Rear- and right-side-view cameras

Ground-level engine shutoff switch

Anti-skid plate and countersunk bolts on service platform

SERVICE AND MAINTENANCE

Sampling ports for Scheduled Oil Sampling (S·O·S)

Integrated vehicle health management system

UNDERCARRIAGE AND STRUCTURES

11.00-20 16 PR, dual tires

Automatic brake/axle lock

Creeper speed

All wheel drive

M322 Optional Equipment

NOTE

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

BOOM AND STICKS

2.5 m (8'2") stick

2.9 m (9'6") stick

CAT TECHNOLOGY

Cat Grade Connectivity

Cat Grade 2D

Cat Grade with Attachment Ready Option (ARO)

Cat Grade 3D dual GNSS

Laser catcher

Grade Assist

Cat Payload

Cat Tilt Rotator (TRS) Integration

ELECTRICAL SYSTEM

Electrical refueling pump

HYDRAULIC SYSTEM

2-slider joystick

Second high-pressure auxiliary circuit (one-/ two-way high-pressure flow)

Medium pressure auxiliary circuit (one-/ two-way medium-pressure flow)

Quick coupler circuit

SmartBoom

Ride control

Cat tiltrotator support

Joystick steering

Boom/stick lowering check valves

SAFETY AND SECURITY

360° visibility

Cat asset tracker

Wide angle mirrors

Signaling/warning horn

2D E-Fence

Inspection lighting

SERVICE AND MAINTENANCE

Automatic lubrication system for implement and swing system

UNDERCARRIAGE AND STRUCTURES

3500 kg (7,716 lb) counterweight

4700 kg (10,362 lb) counterweight

Compatible Technology and Services

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

Detect

Equipment Management

Grade

Payload

Productivity

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.

Explore Technology

1 - 8 of 9 Items items

Previous Next

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.

Explore Technology

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.

Explore Technology
Cat PL161 Attachment Tracker

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.

Explore Technology
Cat Product Link

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
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.

Explore Technology
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.

Explore Technology

1 - 8 of 9 Items items

Previous Next

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

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.

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.

Explore Technology

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

Cat Grade for Excavators (2D & 3D)

Digging a foundation. Trenching for a water line. Working on a slope. These jobs demand the precision and speed you get from Cat® Grade technologies. Combining advanced guidance with optional automated machine control, Grade helps operators hit grading targets right on the money in fewer passes.

Explore Technology

1 - 8 of 9 Items items

Previous Next

Digging a foundation. Trenching for a water line. Working on a slope. These jobs demand the precision and speed you get from Cat® Grade technologies. Combining advanced guidance with optional automated machine control, Grade helps operators hit grading targets right on the money in fewer passes.

Explore Technology

Cat Payload for Excavators

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.

Explore Technology

1 - 8 of 9 Items items

Previous Next

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.

Explore Technology

VisionLink® Productivity

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.

Explore Technology

1 - 8 of 9 Items items

Previous Next

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.

Explore Technology

See how M322 compares against frequently compared products.

Excavators

Selected

M322

Engine Power - ISO 14396:2002: 174 hp; 129 kW
Operating Weight Maximum: 52911 lb; 24000 kg
Forward/Reverse - 2nd Gear: 18.6 mile/h; 30 km/h

Excavators

M320

Engine Power - ISO 14396:2002: 174 hp; 129.4 kW
Operating Weight Maximum: 46740 lb; 21200 kg
Maximum Travel Speed: 21.7 mile/h; 35 km/h

View Details

Excavators

M314 - Tier 4 / Stage V Tier 4 / Stage V

Engine Power - ISO 14396: 134 hp; 100 kW
Operating Weight Maximum: 39680 lb; 18000 kg
Maximum Travel Speed: 23 mile/h; 37 km/h

View Details

Use the comparison tool to compare detailed specs of Cat and competitor models.

Compare All Models

Tools And Expert Help At Every Turn

Boost Productivity. Improve Efficiency.

Cat® Technology for construction helps contractors meet production goals and improve efficiencies.

Learn More

Resources For Excavator Owners

Own an excavator? We’ve got you covered with must-know information about your machine.

Learn More

Product Brochures and More Are Ready to Download!

Caterpillar product brochures and other informational documents are available for your growing business.

Media Gallery

Photos

Videos

360 View

M322 Wheeled Excavator

Stick Steer for Cat® Excavators

Wheel Excavators M322

Overview

OPTIMAL EFFICIENCY WITH TECHNOLOGY AND EASY MAINTENANCE

Benefits

IMPROVED PERFORMANCE

UP TO 5% LOWER MAINTENANCE COSTS

UP TO 45% INCREASED OPERATOR EFFICIENCY

Features At A Glance

Product Specifications for M322

Engine

Hydraulic System

Swing Mechanism

Machine Weight

Service Refill Capacities

Transmission

Dimensions

Working Ranges and Forces

Air Conditioning System

M322 Standard Equipment

NOTE

CAB

BOOM AND STICKS

CAT TECHNOLOGY

ELECTRICAL SYSTEM

ENGINE

HYDRAULIC SYSTEM

SAFETY AND SECURITY

SERVICE AND MAINTENANCE

UNDERCARRIAGE AND STRUCTURES

M322 Optional Equipment

NOTE

BOOM AND STICKS

CAT TECHNOLOGY

ELECTRICAL SYSTEM

HYDRAULIC SYSTEM

SAFETY AND SECURITY

SERVICE AND MAINTENANCE

UNDERCARRIAGE AND STRUCTURES

Product Specifications for M322

Engine

Hydraulic System

Swing Mechanism

Machine Weight

Service Refill Capacities

Transmission

Dimensions

Working Ranges and Forces

Air Conditioning System

M322 Standard Equipment

NOTE

CAB

BOOM AND STICKS

CAT TECHNOLOGY

ELECTRICAL SYSTEM

ENGINE

HYDRAULIC SYSTEM

SAFETY AND SECURITY

SERVICE AND MAINTENANCE

UNDERCARRIAGE AND STRUCTURES

M322 Optional Equipment

NOTE

BOOM AND STICKS

CAT TECHNOLOGY

ELECTRICAL SYSTEM

HYDRAULIC SYSTEM

SAFETY AND SECURITY

SERVICE AND MAINTENANCE

UNDERCARRIAGE AND STRUCTURES

Compatible Technology and Services

Cat 2D E-fence for Excavators

Cat Inspect

Cat PL161 Attachment Tracker

Cat Product Link

Cat Remote Flash

Cat Remote Troubleshooting

Cat Grade for Excavators (2D & 3D)

Cat Payload for Excavators

VisionLink® Productivity

See how M322 compares against frequently compared products.

Tools And Expert Help At Every Turn

Product Brochures and More Are Ready to Download!