Skip to content

M322 Wheel Excavator

At a glance data:

Engine Model:
Cat® C7.1
Net Power - ISO 9249:
171hp
M322 Wheel Excavator

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.

Category:
Wheel Excavators

Brand:
Caterpillar

Engine

Engine Power - ISO 14396:
174hp
Engine Power - ISO 14396 (DIN):
176hp (metric)
Engine Model:
Cat® C7.1
Net Power - ISO 9249:
171hp
Net Power - ISO 9249 (DIN):
174hp (metric)
Bore:
4.1in
Stroke:
5.3in
Displacement:
427.8in²
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:
18.6mile/h

Hydraulic System

Main System - Maximum Flow - Implement:
95gal/min
Maximum Pressure - Implement Circuit - Normal:
5076psi
Maximum Pressure - Implement Circuit - Heavy Lift:
5366psi
Maximum Pressure - Implement Circuit - Travel Circuit:
5076psi

Swing Mechanism

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

Machine Weight

Operating Weight Maximum:
54770lb
Operating Weight Minimum:
47430lb
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:
124.2gal (US)
Diesel Exhaust Fluid (DEF):
7.9gal (US)
Cooling System:
10.6gal (US)
Hydraulic Tank:
52.8gal (US)
Hydraulic System - Including Tank:
107gal (US)

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:
11ft
Shipping Length:
31.1ft
Support Point:
11.3ft
Tail Swing Radius:
9.2ft
Counterweight Clearance:
4.4ft
Ground Clearance:
1ft
Undercarriage Length:
17ft
Wheel Base:
9ft

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:
35.8ft
Maximum Loading Height:
24.7ft
Maximum Digging Depth:
21.8ft
Maximum Vertical Wall Digging Depth:
17.3ft
Maximum Reach at Ground Line:
33.4ft
Bucket Forces (ISO):
33946lbf
Stick Forces (ISO):
23605lbf
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)