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A great all-around excavator, the 320E is easy to maneuver, yet powerful enough to handle tough jobs. Lift capacity has been improved by 5 percent on the standard machine and up to 20 percent on the Heavy Lift configuration. A lower emissions engine boosts fuel efficiency, while other new features enhance safety and productivity, cut service time and reduce operating costs.


Engine Model Cat® C6.6 ACERT™ Cat® C6.6 ACERT™ Less
Net Flywheel Power 153.0 hp 114.0 kW Less
Bore 4.1 in 105.0 mm Less
Stroke 5.0 in 127.0 mm Less
Displacement 403.0 in3 6.6 L Less
Gross Power - SAE J1995 164.0 hp 122.0 kW Less
Net Power - SAE J1349 153.0 hp 114.0 kW Less


Operating Weight 54450.0 lb 24730.0 kg Less
Maximum Operating Weight** 54450.0 lb 24730.0 kg Less
Maximum Weight 54450.0 lb 24730.0 kg Less
Minimum Operating Weight* 47400.0 lb 21500.0 kg Less
Minimum Weight 47400.0 lb 21500.0 kg Less

Service Refill Capacities

Fuel Tank Capacity 108.3 gal 410.0 L Less
Cooling System 7.9 gal 30.0 L Less
Swing Drive 2.1 gal 8.0 L Less
Final Drive (each) 2.1 gal 8.0 L Less
Hydraulic System (including tank) 68.7 gal 260.0 L Less
Hydraulic Tank 37.8 gal 143.0 L Less
Engine Oil (with filter) 6.1 gal 23.0 L Less

Swing Mechanism

Swing Speed 11.2 RPM 11.2 RPM Less
Swing Torque 45581.0 lb ft 61.8 kN·m Less


Maximum Drawbar Pull 46086.0 lb 205.0 kN Less
Maximum Travel Speed 3.5 mph 5.6 km/h Less

Hydraulic System

Pilot System - Maximum Flow 6.4 gal/min 24.3 L/min Less
Pilot System - Maximum Pressure 569.0 psi 3920.0 kPa Less
Boom Cylinder - Bore 4.7 in 120.0 mm Less
Boom Cylinder - Stroke 49.6 in 1260.0 mm Less
Stick Cylinder - Bore 5.5 in 140.0 mm Less
Stick Cylinder - Stroke 59.2 in 1504.0 mm Less
B1 Bucket Cylinder - Bore 4.7 in 120.0 mm Less
B1 Bucket Cylinder - Stroke 43.5 in 1104.0 mm Less
Main System - Maximum Flow (Total) 113.1 gal/min 428.0 L/min Less
Maximum Pressure - Equipment - Heavy Lift 5511.0 psi 38000.0 kPa Less
Maximum Pressure - Equipment - Normal 5076.0 psi 35000.0 kPa Less
Maximum Pressure - Swing 3626.0 psi 25000.0 kPa Less
Maximum Pressure - Travel 5076.0 psi 35000.0 kPa Less

Sound Performance

Operator Noise (Closed) - ISO 6396 71.0 dB(A) 71.0 dB(A) Less
Spectator Noise - ISO 6395 103.0 dB(A) 103.0 dB(A) Less


Brakes ISO 10265 2008 ISO 10265 2008 Less
Cab/FOGS ISO 10262 1998 ISO 10262 1998 Less
Cab/ROPS ISO 12117-2 2008 ISO 12117-2 2008 Less


Number of Shoes (each side) - Long Undercarriage 49 pieces 49 pieces Less
Number of Track Rollers (each side) - Long Undercarriage 8 pieces 8 pieces Less
Number of Carrier Rollers (each side) - Long Undercarriage 2 pieces 2 pieces Less


Reduced emissions, economical and reliable performance

Operator Station

Comfort and convenience to keep people productive


Power to move more dirt, rock, and debris with speed and precision

Structures & Undercarriage

Built to work in rugged environments

Front Linkage

Made for high stress and long service life

Work Tools

You can dig, hammer, rip, and cut with confidence.

Integrated Technologies

Solutions that make work easier and more efficient


Fast, easy and safe access built in


Features to help protect people

Complete Customer Care

Service you can count on


Generations ahead in every way

320E L Standard Equipment

  • C6.6 diesel engine
  • Biodiesel capable
  • EPA Tier 4 Interim
  • 2300 m (7,500 ft) altitude capability
  • Electric priming pump
  • Automatic engine speed control
  • Economy, standard and high power modes
  • Two-speed travel
  • Side-by-side cooling system (tilt-up ATAAC, swing-out A/C condenser)
  • Radial seal air filter
  • Primary filter with water separator and water separator indicator switch
  • Starting kit, cold weather, -18° C (0° F)
  • Screen fuel filter in fuel lines
  • Primary fuel filter
  • Secondary fuel filter
  • Quick drains, engine and hydraulic oil (QuickEvac)

  • Regeneration circuit for boom and stick
  • Reverse swing dampening valve
  • Automatic swing parking brake
  • High-performance hydraulic return filter
  • Capability of installing HP stackable valve and medium and QC valve
  • Capability of installing additional auxiliary pump and circuit
  • Capability of installing boom lowering control device and stick lowering check valve
  • Capability of installing Cat Bio hydraulic oil
  • Fine swing control

  • Pressurized operator station with positive filtration
  • Mirror package
  • Sliding upper door window (left-hand cab door)
  • Glass-breaking safety hammer
  • Removable lower windshield with in cab storage bracket
  • Coat hook
  • Beverage holder
  • Literature holder
  • AM/FM radio
  • Radio with MP3 auxiliary audio port
  • Two 12V stereo speakers
  • Storage shelf suitable for lunch or toolbox
  • Color LCD display with warning, filter/fluid change, and working hour information
  • Adjustable armrest
  • Height adjustable joystick consoles
  • Neutral lever (lock out) for all controls
  • Travel control pedals with removable hand levers
  • Capability of installing two additional pedals
  • Two power outlets, 10 amp (total)
  • Laminated glass front upper window and tempered other windows

  • Grease Lubricated Track GLT2, resin seal
  • Towing eye on base frame

  • 80 amp alternator
  • Circuit breaker
  • Capability to electrically connect a beacon

  • Boom light with time delay
  • Exterior lights integrated into storage box

  • Cat one key security system
  • Door locks
  • Cap locks on fuel and hydraulic tanks
  • Lockable external tool/storage box
  • Signaling/warning horn
  • Secondary engine shutoff switch
  • Openable skylight for emergency exit
  • Rearview camera
  • Travel alarm

  • Product Link

320E L Optional Equipment

  • Starting kit, cold weather, -32° C (-26° F)
  • Jump start receptacle
  • Radiator screen
  • Block heater (jacket water heater)

  • Control pattern quick-changer, two way
  • Additional circuit
  • Boom and stick lines
  • High-pressure line
  • Medium-pressure line
  • Cat quick coupler line - high-pressure capable
  • Electronic Control device, 1/2P, one-way circuit
  • Electronic Control device (Common), 1/2P, common circuit
  • Electronic Control device, 1P, two-way circuit
  • Boom lowering and stick lowering control device

  • Cab hatch emergency exit
  • Seat, high-back air suspension with heater
  • Seat, high-back mechanical suspension
  • Sunscreen
  • Windshield wiper, upper and lower with washer
  • Air pre-filter
  • Left foot switch
  • Left pedal
  • Straight travel pedal

  • 600 mm (24") triple grouser shoes
  • 790 mm (31") triple grouser shoes
  • Guard, full length for long FG undercarriage
  • Guard, heavy-duty bottom
  • Center track guiding guard
  • Segmented (2 piece) track guiding guard
  • HD track roller

  • 3.55 mt (3.9 t) with lifting eye
  • 4.6 mt (5.1 t) with lifting eye
  • 5.4 mt (5.9 t) with lifting eye

  • Quick coupler
  • Bucket linkage, B1 family with lifting eye
  • 5.7 m (18'8") heavy duty and extreme service booms
  • 8.85 m (29'0") SLR boom
  • 2.9 m (9'6") stick
  • 3.9 m (12'10") stick
  • 6.28 m (20'6") SLR stick

  • Working lights, cab mounted with time delay
  • HID lights, cab mounted with time delay
  • Halogen boom lights

  • FOGS, bolt-on
  • Side rubber bumper
  • Guard, vandalism
  • Cat MSS (anti-theft device)

  • Cat Grade Control Depth and Slope

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