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M320 Wheel Excavator

M320 Wheel Excavator

The Cat® M320 Wheel Excavator helps provide top performance with high swing torque to get the job done fast. With low maintenance costs, long service intervals, and 100 percent daily ground level check, the M320 helps save you time and money. A cab made for operator comfort helps keep you working quickly and efficiently.

Engine

Engine Power - ISO 14396

174hp

Engine Power - ISO 14396 (DIN)

176hp (metric)

Engine Model

Cat C4.4

Net Power - ISO 9249

171hp

Net Power - ISO 9249 (DIN)

174hp (metric)

Bore

4.1in

Stroke

5.3in

Displacement

268.5in³

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. Adv

Note (2)

¹Cat diesel engines are required to use ULSD (ultra-low sulfur diesel fuel with 15 ppm of sulfur or less) and are compatible* with ULSD blended with the following lower-carbon intensity fuels** up to: 20% biodiesel FAME (fatty acid methyl ester)*** or 100

Machine Weight

Operating Weight Maximum

46740lb

Operating Weight Minimum

41450lb

Note (1)

Operating weight includes full fuel tank, operator, bucket 700 kg (1,543 lb) and dual pneumatic tires. Weight varies depending on configuration. Typical configurations include 2500 mm (8'2") stick, 3600 kg (7,937 lb) counterweight, bucket and 220 kg (485

Drive

Maximum Travel Speed

21.7mile/h

Hydraulic System

Main System - Maximum Flow - Implement

81gpm

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*

9.2r/min

Maximum Swing Torque

38722lbf·ft

Note (1)

*For CE-marked machine default value may be set lower

Service Refill Capacities

Fuel Tank

124.2gal (US)

Diesel Exhaust Fluid (DEF)

7.9gal (US)

Cooling System

8.4gal (US)

Hydraulic Tank

40.9gal (US)

Hydraulic System - Including Tank

71.3gal (US)

Dimensions

Boom

Variable Adjustable Boom 5260 mm (17'3")

Stick

2500 mm (8'2")

Bucket

GD 0.98 m³ (1.28 yd³)

Shipping Height - Top of Cab

11.1ft

Shipping Length

29.3ft

Support Point

11.7ft

Tail Swing Radius

8.5ft

Counterweight Clearance

4.3ft

Ground Clearance

1.4ft

Undercarriage Length

16.6ft

Wheel Base

8.9ft

Working Ranges and Forces

Boom

Variable Adjustable Boom 5260 mm (17'3")

Stick

2500 mm (8'2")

Bucket

GD 0.98 m³ (1.28 yd³)

Maximum Cutting Height

32.6ft

Maximum Loading Height

22.8ft

Maximum Digging Depth

19.8ft

Maximum Vertical Wall Digging Depth

13.9ft

Maximum Reach at Ground Line

30.5ft

Stick Forces (ISO)

20682lbf

Bucket Forces (ISO)

30799lbf

Note (1)

Range values are with dual pneumatic tires (10.00-20). Range values are calculated with a GD bucket (CW) and CW-30 quick coupler with a tip radius of 1535 mm (5'0"). Force values are calculated with heavy lift on, a GD bucket (pin-on) and a tip radius of

Air Conditioning System

Note

The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a or R1234yf. See the label or instruction manual for identification of the gas. If equipped with R134a (Global Warming Potential = 1430), the system conta

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
  • 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
    • Up to 52°C (125°F) high-ambient cooling capacity
    • Cold start capability down to -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
  • Safety And Security
    • Rear and right-side-view cameras
    • Wide angle mirrors
    • Lockable disconnect switch
    • Anti-skid plate and countersunk bolts on service platform
    • Signal/warning horn
  • 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

Optional Equipment:

  • Note
    • Standard and optional equipment may vary. Consult your Cat dealer for details.
  • Boom And Sticks
    • 5650 mm (18'6") One-piece boom
    • 5260 mm (17'3") Variable Adjustable boom
    • 2500 mm (8'2") stick
    • 2900 mm (9'6") stick
  • Cab
    • Operator Protective Guards (OPG)
  • 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
    • Bucket cylinder check valves
    • One-slider joysticks
    • Two-slider joysticks
    • Joystick steering
  • Safety And Security
    • 360° visibility
    • Inspection lighting
    • 2D E-fence
    • Cab Avoidance
  • Service And Maintenance
    • Automatic lubrication system for implement and swing system
  • Undercarriage And Structures
    • 10.00-20 16 PR, dual tires
    • 11.00-20-16 PR, dual tires
    • 315/70R22.5, no gap dual tires (Europe only)
    • 445/70R 19.5, single tires
    • 300-80-22.5 dual pneumatic, spacerless tire
    • 3600 kg (7,937 lb) counterweight (Europe only)
    • 4200 kg (9,260 lb) counterweight

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