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CAT 320 Excavator

CAT 320 Excavator

The CAT 320 Excavator is a powerful and versatile machine that is commonly used in construction and mining operations. With its advanced technology and impressive capabilities, the CAT 320 Excavator is capable of handling a wide range of tasks, from digging and grading to demolition and material handling.

One of the most notable features of the CAT 320 Excavator is its powerful engine. Equipped with a CAT C4.4 ACERT engine, this excavator delivers a maximum net power of 74 horsepower and an operating weight of over 33,000 pounds. This allows the machine to handle heavy loads and perform demanding tasks with ease.

The CAT 320 Excavator is also known for its impressive digging capabilities. With a maximum digging depth of over 20 feet and a maximum digging reach of over 32 feet, this excavator is capable of excavating large amounts of earth quickly and efficiently. Additionally, the excavator is equipped with a variety of attachments, such as a bucket or a hammer, that can be used to perform a wide range of digging and grading tasks.

CAT 320 Excavator


long reach

Long Reach Arms

The HAWK Long Reach Arms Package is an excellent addition to any standard excavator for deep foundation excavation, industrial demolition, deeper or more precise dredging, large digging projects, barge unloading, tank cleaning, and for any.. read more

HAWK Excavator Amphibious Undercarriage

Amphibious  Undercarriage

The HAWK Amphibious Undercarriage is an excavator that you can use in inaccessible places. Install our amphibious undercarriage and tracks package and easily be able to dredge and excavate from land, sea, or swamp,.. read more


RTK GPS Dredge & Dig System

The HAWK RTK GPS Dredge & Dig System is an efficient and accurate dredging equipment and you always know where you’re dredging with our new RTK GPS system that can be attached to a dredge.. read more


HAWK General Duty Bucket

General Purpose Buckets

HAWK Excavator general purpose bucket is made for light-duty operations like loading, excavation, and earthmoving gravel, loose rock, sand, and earth. This skid steer digging bucket is also ideal for the large-capacity workload like deep earth.. read more

HAWK Clamshell Bucket

HAWK Capacity Clamshell Buckets

The HAWK excavator clamshell bucket and rotating clamshell bucket is best for dredging and material re-handling. These clamshell buckets are capable of picking up 1 y³ of material. The rotating clamshell bucket 360-degrees of rotation… read more

HAWK Excavator Grapples

HAWK excavator grapples are an excellent alternative to excavator buckets, converting the latter into machines fit for demolition site cleanups, sorting trash, and handling loose materials. HAWK offers different excavator grapples for different applications.


new features


  • Optional CAT 320 Excavator Command remote control allows you to work outside of the cab to help avoid potential hazards.
  • Optional CAT 320 Excavator Detect – People Detection helps the operator avoid personnel on the jobsite with visual and auditory alerts.
  • The optional integrated vehicle health management system alerts the operator with service guidance and necessary parts to enhance uptime.
  • Optional single antenna global navigation satellite system (GNSS) gives you visual and auditory guidance to grade.
  • Optional auxiliary relay powers on and turns off CB radios, beacon lights, and other attachments without you taking your hands off the joysticks.
  • Enhance visibility to make service work more accessible and safer with optional inspection lighting.
  • Make the jobsite safer with an optional swing alarm.
    Not all features are available in all regions. Please check with your local Cat dealer for specific offering availability in your area.
    Build Number: 08B


  • The C7.1 twin turbo engine reliably delivers power to the pumps for maximum production.
  • The electrohydraulic system responds quickly and efficiently to the task at hand.
  • Match the excavator to the job with three power modes – Power, Smart, and Eco.
  • Power mode is maximum power all the time. Smart mode automatically matches engine and hydraulic power to digging conditions, providing maximum power when needed and reducing power when it isn’t to help save fuel.
  • Eco mode reduces engine speed and keeps it constant to reduce fuel consumption.


download specs here DOWNLOAD


Net Power – ISO 9249146 HP
Engine ModelCat C4.4e TA
Engine Power – ISO 14396148 HP
Bore4 in
Stroke5 in
Displacement269 in³


Main System – Maximum Flow442 l/min (116 gal/min)
Maximum Pressure – Equipment5075 psi
Maximum Pressure – Travel4974 psi
Maximum Pressure – Swing3625 psi


Swing Speed11.6 r/min
Maximum Swing Torque54900 ft·lb


Operating Weight48300 lb


Fuel Tank Capacity86.6 gal (US)
Cooling System6.6 gal (US)
Engine Oil4 gal (US)
Swing Drive – Each3.2 gal (US)
Final Drive – Each1.1 gal (US)
Hydraulic System – Including Tank61.8 gal (US)
Hydraulic Tank30.4 gal (US)
DEF Tank10.3 gal (US)


BoomReach 5.7 m (18’8″)
StickR2.9B1 (9’6″)
Bucket1.00 m³ (1.31 yd³)
Shipping Height – Top of Cab9.7 ft
Handrail Height9.8 ft
Shipping Length31.3 ft
Tail Swing Radius9.3 f
Counterweight Clearance3.4 ft
Ground Clearance1.5 ft
Track Length14.7 ft
Length to Center of Rollers12 ft
Track Gauge7.9 ft
Transport Width10.4 ft


Maximum Digging Depth22 ft
BoomReach 5.7 m (18.8)
StickR2.9B1 (9’6″)
Bucket1.00 m³ (1.31 yd³)
Maximum Reach at Ground Level32.3 ft
Maximum Cutting Height31 ft
Maximum Loading Height21.3 ft
Minimum Loading Height7.1 ft
Maximum Depth Cut for 2440 mm (8 ft)
Level Bottom21.6 ft
Maximum Vertical Wall Digging Depth18.7 ft
Bucket Digging Force – ISO28935 lbs.
Stick Digging Force – ISO22281 lbs.