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.
Specifications
Equipment
Product Brochures
Attachments
Units:
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
CAB
BOOM AND STICKS
CAT TECHNOLOGY
ELECTRICAL SYSTEM
ENGINE
HYDRAULIC SYSTEM
SAFETY AND SECURITY
SERVICE AND MAINTENANCE
UNDERCARRIAGE AND STRUCTURES
