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323D3

323D3 excavator

Get more done. Lower your cost per ton. The Cat® 323D3 Excavator brings increased
speed, efficiency, and high productivity to your heavy-duty, high-production applications.

Would you like to Rent or Buy New / Used?

Key Features


High Performance Digging
  • Get more done with improved cycle times, productivity, and fuel efficiency
    over the Cat® 320D2.
  • Move more, faster with a larger Cat 1.20 m3 (1.57 yd3) severe-duty bucket.
  • Expect reliable performance from the powerful Cat C7.1 mechanically controlled
    engine. The double-filtered low-pressure fuel system and antirust fuel tank protects
    the engine from lower quality fuel.
  • Balance power and efficiency using the open-center, negative flow control
    hydraulic system. Hydraulic cross-sensing makes full engine power always available
    from hydraulic pumps regardless of which function is used.
  • Dig and lift from a stable platform created by the standard 4.25 ton (9,370
    lb) counterweight and heavy-duty, eight-roller undercarriage.
  • Add versatility by adding tool control to run a hammer or other tools requiring
    one-way flow. Order tool control with the machine or add it later with a dealer-installed
    kit.
  • Product Link™ comes standard so you can remotely monitor machine health, location, hours,
    and fuel consumption on demand through the Visionlink® online interface.
  • The excavator has a high-ambient capability of 52° C (125° F) and cold start
    capability of –18° C (0° F). An optional –32° C (–25° F) cold start package is available.
Use Less Fuel
  • Fuel efficiency (liters/ton) has improved over the previous 320D2 excavator.
  • Use 15 percent less fuel in Economy mode with no loss in lifting or digging
    forces.
  • Boom and stick regeneration circuits reduce fuel consumption by up to two
    percent while improving cycle times.
  • Use automatic engine speed control (AEC) during no-load or light-load conditions
    to automatically reduce engine speed to minimize fuel consumption.
  • Standard one-touch low idle saves fuel by instantly reducing engine speed
    to 1,100 rpm at the push of a button. Return the engine speed to the throttle position
    by hitting the button again or simply moving the joysticks.
  • New tandem hydraulic pumps provide seven percent more hydraulic power with
    less internal friction to increase overall  efficiency. Each pump can produce a maximum
    flow of 200 L/min (52.8 gal/min). Hydraulic system components are close together to
    minimize power loss from friction and pressure drops.
Reliability You Expect from a Cat Machine
  • A two-stage filtering system with integrated water separator protects the
    engine from particles larger than four microns when fuel quality is less than ideal.
  • We designed the stick and boom structures using high-tensile steel fabricated
    into a large box section using internal baffles to absorb torsional stress. The X-shaped,
    box-section carbody provides excellent resistance to torsional bending, dissipating
    stress throughout the base of the machine.
  • Traverse the job site on the Grease Lubricated Track (GLT) undercarriage.
    Undercarriage rollers are rebuildable and sealed to prevent dirt and debris causing
    internal wear. Grease lubricated links minimize internal bushing wear, reducing noise
    and increasing life up to 25 percent.
  • Robust bottom guards protect machine components that might be damaged while
    swinging. A thicker bottom guard plate is used under the pump compartment to protect
    the suction hose.
  • Hydraulic snubbers in the boom and stick cylinders dampen end-of-stroke impact
    prolonging the life of your machine.
  • Safety fuses protect critical electrical components. Thick braiding protects
    the colored, numbered electrical wires. Non-abrasive connectors keep wiring harnesses
    in place to prevent failure.
  • The capsule-type hydraulic return filter prevents contaminants from entering
    the system when hydraulic oil is changed. If the filter clogs, a warning is displayed
    on the monitor screen inside the cab.
  • The swing system uses a ball bearing to help absorb stresses caused by swing
    torque.
  • The standard, integrated idler guard helps maintain track alignment while
    traveling or working on the slopes.
Work in Comfort
  • The spacious cab provides excellent visibility from the operator’s seat to
    keep you aware of your surroundings – without bending or straining to see.
  • Critical machine information is always visible in the new high resolution
    178 mm (7 in) monitor. Intuitive menus mean more time working and less time looking
    for information.
  • Work a full day with less fatigue using the ergonomically-designed pilot-operated
    joysticks matched to operator’s wrist and arm position. Joystick consoles can be adjusted,
    further improving operator comfort and productivity.
  • Automatic climate control helps maintain consistent cab temperature. Five
    outlets ensure proper air circulation to keep you comfortable regardless of outside
    temperatures.
  • Keep your phone or other personal electronics charged using the two standard
    12V auxiliary power ports delivering up to 10 A of power.
  • Seat adjusts to accommodate a variety of operator size and weight. Wide adjustable
    armrests and retractable seatbelt are also included.
  • Standard Cab Equipment. To enhance operator comfort and productivity, the
    cab includes a lighter, drink holder, coat hook, service meter, literature holder,
    magazine rack and storage compartment.
  • There is plenty of room for you to store your gear. There are two storage
    locations at the rear of the right console and one space for your lunchbox behind
    the seat.
Designed-in Safety
  • The standard hydraulic lockout lever prevents operators from leaving the cab
    without first isolating all hydraulic functions. When necessary, you can activate
    the ground level shut-off switch to stop the fuel to the engine and shut down the
    machine.
  • The machine provides you a safe work platform for all routine service and
    maintenance needs. Anti-skid plating with countersunk bolts reduces the potential
    for slippage and trip hazards.
  • A battery disconnect switch helps to deter theft by isolating the battery
    and enhances safety when servicing the machine.
  • A full-length firewall separates the engine from the hydraulic pump and offers
    protection in the event of an incident.
  • We designed the cab to provide excellent visibility from the operator’s seat.
    In addition, two standard mirrors help keep you aware of your surroundings.
  • The machine can be equipped with a Falling Object Guarding System (FOGS) guard
    that conforms to the ISO 10262 standard. These guards are bolted directly to the cab
    shell.
Easy to Maintain
  • Lower your maintenance costs by up to five percent with 20 percent less refill
    oil volume than the 320D2 and maintenance free batteries.
  • Easily maintain your machine. Most service locations are easily accessible
    at ground level to allow service and maintenance to get completed quickly and efficiently.
    A service door on the right side of the upper structure allows ground-level access
    to the hydraulic pumps, hydraulic filters, engine oil filter, and fuel filters.
  • Easily access the proven, high-efficiency radial seal engine air filter behind
    the cab. The machine constantly monitors the engine air filter and will notify you,
    via the monitor, when service is required.
  • A remote greasing block on the boom allows the greasing of hard-to-reach locations.
    A remote mounted greasing point on the swing bearing allows ease of service.
  • Robust service doors open wide for easy access to service points. Latches
    firmly hold the doors in the open position to prevent accidental closing while servicing
    – even on windy days. On the top of the machine, the large engine hood provides easy
    access to the engine and cooling compartments.
  • There is no need to manually prime the fuel system after fuel filter changes.
    The standard electric priming pump reduces the risk of contamination by preventing
    unfiltered fuel from entering the fuel system.
  • Routine cleaning is made easier with the single plane cooling package design.

Standard Equipment

NOTE
  • Standard and optional equipment may vary. Consult your Cat dealer for details.
CAB
  • Sound suppresed cab with viscous mounts
  • Full color 178 mm (7 in) LCD monitor
  • Mechanically adjustable seat with seatbelt
  • Openable skylight, openable upper windshield and removable bottom windshield
  • Auto bi-level air conditioner
CAT CONNECT TECHNOLOGY
  • Cat Product Link
ENGINE
  • Two selectable power modes
  • One-touch low idle with auto engine speed control
  • Two stage fuel filtration system with water separator and indicator
  • 52° C (125° F) high-ambient cooling capacity
  • 4000 m (13,120 ft) altitude capability
  • Radial seal air filter with double filter element
  • Electric fuel priming pump
  • Biodiesel capability up to B20
HYDRAULIC SYSTEM
  • Boom and stick regeneration circuit
  • Boom and stick drift reduction valve
  • Auto two-speed travel
  • Reverse swing damping valve
  • High performance hydraulic return filter
BOOM AND STICK
  • 5.7 m (18’8″) heavy duty reach boom
  • 2.5 m (8’2″) heavy duty reach stick
UNDERCARRIAGE AND STRUCTURES
  • 600 m (24″) triple grouser shoes (12 mm/0.5″ thick)
  • Grease lubricated track links
  • Tie down points on base frame
  • Center track guiding guard
  • 4250 kg (9,370 lb) counterweight
ELECTRICAL SYSTEM
  • Two 1,000 CCA maintenance free batteries
  • Halogen chassis light, left-hand boom light, cab lights
SERVICE AND MAINTENANCE
  • Sampling ports for Scheduled Oil Sampling (S.O.SSM)
  • Single plane cooling arrangement
  • Radiator screen
SAFETY AND SECURITY
  • Rear window emergency exit
  • Two rearview mirrors
  • Hydraulic lock out lever
  • Ground level engine shutoff switch
  • Right-hand handrail and hand hold
  • Signaling/warning horn

Optional Equipment

CAB
  • Control pattern changer
  • Roll down sun screen
ENGINE
  • -32° C (-25°F)
  • Engine air pre-filter
HYDRAULIC SYSTEM
  • Fine swing control
  • Hammer return filter circuit
  • High-pressure auxiliary circuit
  • Quick coupler circuit for Cat Pin Grabber
UNDERCARRIAGE AND STRUCTURES
  • 600 mm (24″) triple grouser shoes (10 mm/0.4″ thick)
  • Segmented track guiding guard
  • Heavy duty track roller

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