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M320 Wheel Excavators

A quiet cab and efficient power systems mean happier operators and more profit from every task you throw at the Cat® M320 Wheeled Excavator. Built to take on the toughest conditions, the M320 offers optional configurations and attachments to handle most any job site need.

M320

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Cat® M320 wheel excavators combine the capabilities of trackhoe models but add more mobility, speed, and versatility for digging, trenching, and lifting.

Engine Power - ISO 14396:2002
173 hp
Operating Weight Maximum
42990 lb
Maximum Travel Speed
23 mile/h
Engine Model
Cat® C7.1
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  • Specifications
  • Features
  • Standard Equipment

Specifications

Engine specifications
Engine Power - ISO 14396:2002 128.8 kW
Engine Model Cat® C7.1
Bore 105 mm
Displacement 7 l
Stroke 135 mm
Engine Emissions Meets U.S. EPA Tier 3 and EU Stage IIIA emission standards.
Note (1) The M320 meets Tier 3 and Stage IIIA emission standards. Net power is tested per ISO 9249:2007. Standards in effect at the time of manufacture. Net power available at flywheel when the engine is equipped with fan, air cleaner, muffler, and alternator with engine speed at 2,000 rpm.
Note (2) No engine power derating required below 3,000 m (9,843 ft) altitude.
Note (3) Recommended for use up to 3000 m (9,843 ft) altitude with engine power derate above 3000 m (9,840 ft).
Note (4) Rated speed at 2,000 rpm.

Features

PERFORMANCE AND PRODUCTIVITY

        
  • Cat® C7.1 engine meets EU Stage IIIA equivalent emission standards.
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  • Engine fuel system designed to manage world-wide fuel quality and provide outstanding low fuel consumption during both working and traveling applications.
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  • One-Touch Low Idle Control and Automatic Engine Speed Control reduce engine speed if no operation is performed, reducing fuel consumption and sound levels.
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  • Three working modes: Power mode, Eco mode and Travel mode.
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  • Constant Power Strategy, providing a quick response to changing loads, while delivering the same amount of power.
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  • Choice of various booms and sticks provides the right balance of reach and digging forces for all applications.
    •     
  • Dedicated Swing Pump allows faster and smoother combined movements when using the implements while swinging.

EXPAND YOUR CAPABILITIES

        
  • Multiple configurations meet all your applications needs, with a choice of booms, sticks, blade and/or stabilizer undercarriages.
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  • Highly mobile, the M320 can travel up to 37 km/h.
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  • Standard one-way high pressure hydraulics allow customers to install attachments like hammers without adding other lines.
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  • Ten hydraulic pump flow and pressure settings can be preset within the monitor allowing quicker and easier attachment (optional).
    •     
  • A lifting eye into the bucket linkage, the heavy lift mode and the overload warning signal allow operators to safely lift heavy loads.
    •     
  • Wide range of Cat attachments to handle any job at hand.

OPERATOR COMFORT AND SAFETY

        
  • Operator Protective Guards (top and front guards) are available.
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  • Ergonomically designed cab with controls kept to a minimum, conveniently located and easy to operate.
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  • The optional air-suspension seat, with automatic weight adjustment and heated cushions enhance comfort and productivity.
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  • Safety is enhanced by the all-round visibility provided by large glass areas and skylight and the standard rear-mounted camera image displayed on the full color monitor.
    •     
  • Low sound levels, as a result of the variable fan speed and remote cooling system enabling.

LOWER MAINTENANCE COSTS

        
  • 500 hours fuel filter replacement (reduced to 250 hours if fuel quality is sub-standard) allows reduced maintenance cost.
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  • All daily maintenance points are accessible from ground level.
    •     
  • Clean design, with colored and numbered electrical wires, protected by thick braiding for ease of service.
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  • Greasing points are centralized and kept to a minimum.
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  • Cat XT™-6 ES hoses are resistant and durable, which reduces the risk of leaks that can decrease the performance of the machine.
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  • Rigidity and long life with effective transmission protection and heavy duty axle.
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  • Standard heavy duty batteries for improved cold start capability.

INTEGRATED CAT TECHNOLOGIES

        
  • Cat technology solutions increase production and minimize operating costs. Link technologies wirelessly connect you to your job site, providing machine location, hours, fuel usage, idle time and event codes.

Standard Equipment

NOTE
  • Standard and optional equipment may vary. Consult your Cat dealer for details.
ELECTRICAL SYSTEM
  • Alternator, 75 A
  • Boom working light
  • Cab mounted working lights, front and rear
  • Roading and indicator lights, front and rear
  • Main shut-off switch
ENGINE
  • Cat® C7.1 Single Turbo diesel engine - meets U.S. EPA Tier 4 Final and EU Stage emission standards.
  • Power mode selector
  • Air filter/fuel filter
  • Automatic engine speed control
  • Automatic starting aid
HYDRAULIC SYSTEM
  • Heavy lift mode
  • Separate dedicated swing pump
  • Stick regeneration circuit
  • Variable displacement, load sensing hydraulic system
  • Automatic swing brake
SAFETY AND SECURITY
  • Camera mounted on counterweight
  • Mirrors, frame and cab
  • Travel alarm
  • Signal/warning horn
SERVICE AND MAINTENANCE
  • Sampling ports for Scheduled Oil Sampling (SOS)
  • Caterpillar Datalink and Electronic Technician capability
  • Door locks and cab locks with Caterpillar one-key security system
CAT TECHNOLOGIES
  • Cat Product Link™
UNDERCARRIAGE AND STRUCTURES
  • Creeper speed/ four wheel drive
  • Heavy-duty axles, advanced disc brake system and travel motor, adjustable braking force
  • Parking brake
  • Oscillating front axle, lockable, with remote greasing point
  • Full hydraulic steering with emergency capability

Optional Equipment

NOTE

  • Standard and optional equipment may vary. Consult your Cat dealer for details.

BOOM AND STICKS

  • One-Piece Boom
  • 2.5 m (8'2'') stick
  • 2.8 m (9'2'') stick
  • Bucket linkage with diverter valve

ELECTRICAL SYSTEM

  • Electrical refueling pump

SAFETY AND SECURITY

  • Rotating beacon on cab and chassis

UNDERCARRIAGE AND STRUCTURES

  • 10.00-20 dual tires
  • 10.00-20 dual pneumatic tires with road profile
  • Rear blade (parallel) / front outrigger undercarriage
  • Rear outrigger / front blade (parallel) undercarriage