312E/312E L

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Since its introduction in the 1990s, the 300 Series family of excavators has become the industry standard in general, quarry, and heavy construction applications. The all-new E Series and the 312E/312E L will continue that trend-setting standard. The 312E/312E L meets U.S. Environmental Protection Agency (EPA) Tier 4 Interim emission standards, European Union Stage IIIB emission standards, and Japan MLIT Step 4 emission standards. It is also built with several new fuel-saving and comfort-enabling features and benefits that will delight owners and operators. If you are looking for more productivity and comfort, less fuel consumption and emissions, and easier and more sensible serviceability, you will find it in the all-new 312E/312E L and the E Series family of excavators.


Engine Model Cat® C4.4 ACERT™ Cat® C4.4 ACERT™ Less
Flywheel Power 94.0 hp 70.0 kW Less
Bore 4.13 in 105.0 mm Less
Stroke 5.0 in 127.0 mm Less
Displacement 269.0 in3 4.4 L Less
Engine Rated Power - ISO 14396 94.0 hp 70.0 kW Less
Net Power - ISO 14396 94.0 hp 70.0 kW Less


Operating Weight 32408.0 lb 14700.0 kg Less
Operating Weight: Long - Maximum 33069.0 lb 15000.0 kg Less
Operating Weight: Long - Minimum 29762.0 lb 13500.0 kg Less
Operating Weight: Standard - Maximum 32408.0 lb 14700.0 kg Less
Operating Weight: Standard - Minimum 28881.0 lb 13100.0 kg Less

Swing Mechanism

Swing Torque 22791.0 lb ft 30.9 kN·m Less
Swing Speed 11.5 RPM 11.5 RPM Less


Maximum Drawbar Pull 25628.0 lb 114.0 kN Less
Maximum Travel Speed 3.4 mph 5.5 km/h Less

Hydraulic System

Maximum Pressure - Travel 5076.0 psi 35000.0 kPa Less
Maximum Pressure - Swing 3336.0 psi 23000.0 kPa Less
Pilot System - Maximum Pressure 598.0 psi 4120.0 kPa Less
Boom Cylinder - Bore 4.0 in 110.0 mm Less
Boom Cylinder - Stroke 40.0 in 1015.0 mm Less
Stick Cylinder - Bore 5.0 in 120.0 mm Less
Stick Cylinder - Stroke 47.0 in 1197.0 mm Less
Bucket Cylinder - Bore 4.0 in 100.0 mm Less
Bucket Cylinder - Stroke 37.0 in 939.0 mm Less
Main System - Maximum Flow (Total) 2 × 127 L/min (2 × 34 gal/min) 2 × 127 L/min (2 × 34 gal/min) Less
Maximum Pressure - Equipment 4424.0 psi 30500.0 kPa Less
Pilot System - Maximum Flow 21.9 L/min (1,336 in3/min) 21.9 L/min (1,336 in3/min) Less

Service Refill Capacities

Cooling System 5.81 gal 22.0 L Less
Swing Drive (each) 0.63 gal 2.4 L Less
Final Drive (each) 0.79 gal 3.0 L Less
Hydraulic System (including tank) 43.32 gal 164.0 L Less
Hydraulic Tank 23.93 gal 90.6 L Less
Engine Oil (with filter) 3.57 gal 13.5 L Less
Fuel Tank Capacity 66.04 gal 250.0 L Less


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


Number of Carrier Rollers (each side) - Long Undercarriage 2 pieces 2 pieces Less
Number of Carrier Rollers (each side) - Standard Undercarriage 1 piece 1 piece Less
Number of Shoes (each side) - Long Undercarriage 46 pieces 46 pieces Less
Number of Shoes (each side) - Standard Undercarriage 43 pieces 43 pieces Less
Number of Track Rollers (each side) - Long Undercarriage 7 pieces 7 pieces Less
Number of Track Rollers (each side) - Standard Undercarriage 6 pieces 6 pieces Less

Sound Performance

Operator Noise (Closed) - ISO 6396 69.0 dB(A) 69.0 dB(A) Less
Spectator Noise - ISO 6395 100.0 dB(A) 100.0 dB(A) 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

Working as one

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

312E/312E L Standard Equipment

  • C4.4 ACERT diesel engine
  • Biodiesel capable
  • Meets EU Stage IIIB and U.S. EPA Tier 4 Interim emission standards
  • 2300 m (7,546') altitude capability
  • Quick drains, engine and hydraulic oil
  • Electric priming pump
  • Automatic engine speed control
  • Economy and high power modes
  • Two-speed travel
  • Side-by-side cooling system
  • Radial seal air filter
  • Primary filter with water separator and water separator indicator
  • Secondary filter
  • Screen filter in fuel line

  • 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
  • Boom lowering and stick lowering control device

  • Seat, high-back air suspension with heater and cooling
  • Pressurized operator station with positive filtration
  • Sliding upper door window (left-hand cab door)
  • Glass-breaking safety hammer
  • Removable lower windshield with in cab storage bracket
  • Windshield wiper, lower with washer
  • Coat hook
  • Beverage holder
  • Literature holder
  • Two 12V stereo speakers
  • Storage shelf suitable for lunch or toolbox
  • Color LCD display with indicators, 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
  • Sunscreen
  • Travel alarm
  • Level sensor
  • Cab mirror

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

  • 2.2 mt (2.4 t)

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

  • Halogen boom light (left side)
  • Time delay function for boom light and cab light
  • 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
  • Guard rail

312E/312E L Optional Equipment

  • Radiator screen
  • Cold weather battery -25° C (-13° F)
  • Air pre-filter

  • Auxiliary hydraulics
  • Boom and stick lines
  • High-pressure line
  • Medium-pressure line
  • Cat quick coupler line - high-pressure capable
  • Cat Bio hydraulic oil
  • Pattern changer, 2 way

  • Left pedal
  • Ashtray
  • Rain protector

  • 500 mm (20") triple grouser shoes
  • 600 mm (24") triple grouser shoes
  • 700 mm (28") triple grouser shoes
  • 770 mm (30") triple grouser shoes
  • Rubber pad for 500 mm (20") triple grouser shoes
  • Guard, heavy-duty bottom
  • Center track guiding guard
  • Segmented (2 piece) track guiding guard
  • 2500 mm (98") blade with replaceable cutting edge
  • 2600 mm (102") blade with replaceable cutting edge
  • 2700 mm (106") blade with replaceable cutting edge

  • Quick coupler
  • 4.65 m (15'3") reach boom
  • 2.5 m (8'2") stick
  • 3.0 m (9'10") stick
  • 3.0 m (9'10") stick with Cat Grade Control

  • Working lights, cab mounted with time delay
  • HID lights, cab mounted with time delay
  • Halogen boom lights (right side)

  • FOGS, bolt-on
  • Vandalism guard
  • Guard, cab front, mesh
  • Side steel bumper

  • Cat Grade Control Depth and Slope
  • Product Link

Optimise Jobsite Efficiency with Cat® Machine and Technology Solutions

Talk to your Cat dealer about the range of innovative machine technology and fleet management solutions including GRADE, PAYLOAD and LINK technologies. Our 3-year Equipment Protection Plan is now standard on many models* and Caterpillar is standing behind fuel efficiency with our Fuel Edge Program. Plus your Cat dealer can offer competitive finance rates with Caterpillar Financial Australia. 

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