Caterpillar

M322 Wheel Excavator

Name: M322 Wheel Excavator
Brand: Caterpillar

Engine Power – ISO 14396

174 hp

129 kW

Operating Weight Maximum

54770 lb

24845 kg

Maximum Travel Speed

18.6 mile/h

30 km/h

Overview

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.

Media

Stick Steer for Cat® Excavators

Exterior

360 Exterior View

Interior

360° Interior view. Double click on the image to zoom in on any area of the product.

Get more info

First Name*
Last Name*
Company
Address 1*
Address 2
City*
County*
State*
Zip code*
Phone*
Email*
Referral
Message or additional info
CAPTCHA
How did you hear about us?*
*If you chose Other, please explain below.
Email
This field is for validation purposes and should be left unchanged.

Features

Latest Features

High Performance

Work in Comfort

Low Maintenance Costs

Simple to Operate

Safety Features

Integrated Cat® Technologies

Sustainability

Specifications

US Metric

Engine

Spec	Value
Engine Power – ISO 14396	174 hp 129 kW
Engine Power – ISO 14396 (DIN)	176 hp (metric) 176 hp (metric)
Engine Model	Cat® C7.1 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 Up to B20¹
Emissions	Meets U.S. EPA Tier 4 Final and EU Stage V emission standards. 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. 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. 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

Spec	Value
Maximum Travel Speed	18.6 mile/h 30 km/h

Hydraulic System

Spec	Value
Main System – Maximum Flow – Implement	95 gal/min 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

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

Machine Weight

Spec	Value
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. 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

Spec	Value
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

Spec	Value
Boom	Variable Adjustable Boom 5.4 m (17'10") Variable Adjustable Boom 5.4 m (17'10")
Stick	2.9 m (9'2") 2.9 m (9'2")
Bucket	GD 1.19 m³ (1.56 yd³) 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

Spec	Value
Boom	Variable Adjustable Boom 5.4 m (17'10") Variable Adjustable Boom 5.4 m (17'10")
Stick	2.9 m (9'2") 2.9 m (9'2")
Bucket	GD 1.19 m³ (1.56 yd³) 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"). 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

Spec	Value
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. 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.