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.
Engine Power - ISO 14396 174 hp
Operating Weight Maximum 54770 lb
Maximum Travel Speed 18.6 mile/h
Engine Power - ISO 14396 (DIN) 176 hp (metric)
Biodiesel Capability Up to B20¹
Bore 4.1in
Displacement 427.8in²
Emissions Meets U.S. EPA Tier 4 Final and EU Stage V emission standards.
Engine Model Cat® C7.1
Engine Power - ISO 14396 174hp
Engine Power - ISO 14396 (DIN) 176hp (metric)
Net Power - ISO 9249 171hp
Net Power - ISO 9249 (DIN) 174hp (metric)
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. Adv
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
Stroke 5.3in
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.
Operating Weight Maximum 54770lb
Operating Weight Minimum 47430lb
Maximum Travel Speed 18.6mile/h
Main System - Maximum Flow - Implement 95gal/min
Maximum Pressure - Implement Circuit - Heavy Lift 5366psi
Maximum Pressure - Implement Circuit - Normal 5076psi
Maximum Pressure - Implement Circuit - Travel Circuit 5076psi
Maximum Swing Speed* 8.6r/min
Note (1) *For CE-marked machine default value may be set lower.
Swing Torque 44250lbf·ft
Cooling System 10.6gal (US)
Diesel Exhaust Fluid (DEF) 7.9gal (US)
Fuel Tank 124.2gal (US)
Hydraulic System - Including Tank 107gal (US)
Hydraulic Tank 52.8gal (US)
Boom Variable Adjustable Boom 5.4 m (17'10")
Bucket GD 1.19 m³ (1.56 yd³)
Counterweight Clearance 4.4ft
Ground Clearance 1ft
Shipping Height - Top of Cab 11ft
Shipping Length 31.1ft
Stick 2.9 m (9'2")
Support Point 11.3ft
Tail Swing Radius 9.2ft
Undercarriage Length 17ft
Wheel Base 9ft
Boom Variable Adjustable Boom 5.4 m (17'10")
Bucket GD 1.19 m³ (1.56 yd³)
Bucket Forces (ISO) 33946lbf
Maximum Cutting Height 35.8ft
Maximum Digging Depth 21.8ft
Maximum Loading Height 24.7ft
Maximum Reach at Ground Line 33.4ft
Maximum Vertical Wall Digging Depth 17.3ft
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 157
Stick 2.9 m (9'2")
Stick Forces (ISO) 23605lbf
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 and optional equipment may vary. Consult your Cat dealer for details.
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
5.4 m (17'10") Variable Adjustable boom
VisionLink
Remote Flash and Remote Troubleshoot
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
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
Boom, stick, and bucket drift reduction valves
Automatic hydraulic oil warm up
Heavy lift mode
One-slider joysticks
Rear and right-side-view cameras
Lockable disconnect switch
Anti-skid plate and countersunk bolts on service platform
Scheduled Oil Sampling (S·O·S℠) ports
Integrated vehicle health management system
Automatic brake/axle lock
All wheel drive
11.00-20 16 PR, dual tires
Standard and optional equipment may vary. Consult your Cat dealer for details.
2.5 m (8'2") stick (Europe only)
2.9 m (9'6") stick
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 refueling pump
Boom/stick lowering check valves
Two-slider joysticks
Joystick steering
Wide angle mirrors
360° visibility
Signal/warning horn
Inspection lighting
2D E-fence
Cab Avoidance
Automatic lubrication system for implement and swing system
3500 kg (7,716 lb) counterweight (Europe only)
4700 kg (10,362 lb) counterweight
Operator Protective Guards (OPG)
