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The new 312F GC OEM excavator is built for those who need dependable performance at a low cost per hour. The machine features an efficient C3.4B engine that’s light on fuel – with no need for diesel exhaust fluid to meet today’s emission standards. Unlike other brands in its size class, the 312F GC comes equipped with more unique attributes: Strong and stable undercarriage, a quiet and comfortable Roll-Over Protective Structure (ROPS) cab, and easy-to-reach service points are just a few. Bottom line: If you are looking for a dependable, low-cost-per-hour specialty solution based excavator to get your work done – backed by unmatched support from a brand you can trust – look no further than the 312F GC OEM. It simply makes a great deal of business sense.


Engine Model Cat® C3.4B Cat® C3.4B Less
Bore 3.9 in 99.0 mm Less
Stroke 4.33 in 110.0 mm Less
Displacement 207.0 in3 3.4 L Less
Engine Power – ISO 14396 72.0 hp 54.0 kW Less
Net Power – ISO 9249 70.0 hp 52.0 kW Less
Note The 312F GC meets Japan 2014 (Tier 4 Final) emission standards. The 312F GC meets Japan 2014 (Tier 4 Final) emission standards. Less
Flywheel Power 70.0 hp 52.0 kW Less

Swing Mechanism

Swing Speed 11.7 rpm 11.7 rpm Less
Swing Torque 22791.0 lbf-ft 30.9 kN·m Less


Maximum Drawbar Pull 24707.0 lbf 109.9 kN Less
Maximum Travel Speed 3.4 mph 5.5 km/h Less
Maximum Travel Speed – High 3.4 mph 5.5 km/h Less
Maximum Travel Speed – Low 2.2 mph 3.6 km/h Less

Hydraulic System

Maximum Pressure – Travel 4424.0 psi 30.5 MPa Less
Maximum Pressure – Swing 3336.0 psi 23.0 MPa Less
Pilot System – Maximum Pressure 598.0 psi 4120.0 kPa Less
Main System – Maximum Flow (total) 63.4 gal/min 240.0 L/min Less
Maximum Pressure – Equipment 4424.0 psi 30.5 MPa Less

Service Refill Capacities

Fuel Tank Capacity 66.0 gal 250.0 L Less
Cooling System 4.7 gal 17.9 L Less
Engine Oil 2.1 gal 8.0 L Less
Swing Drive 0.8 gal 3.0 L Less
Hydraulic System (including tank) 43.3 gal 164.0 L Less
Hydraulic Tank 23.9 gal 90.6 L Less
Final Drive 0.8 gal 3.0 L Less


Frontless Weight 23854.0 lb 10820.0 kg Less
Operating Weight* 27558.0 lb 12500.0 kg Less
*Note *Dependent on application, Review *Dependent on application, Review Less


Reference Number of Shoes (each side) – Standard Undercarriage 43 pieces 43 pieces Less
Reference Number of Track Rollers (each side) – Standard Undercarriage 6 pieces 6 pieces Less
Number of Carrier Rollers (each side) 1 piece 1 piece Less


Reliable performance you can depend on


Plenty of power for your line of work

Operator Station

Comfort and convenience to keep you productive

Structures and Optional Undercarriage

Built for your tough applications

Simple Technologies

Solutions that make your work efficient


Designed to make your maintenance quick and simple


Features to help you day in and day out

Complete Customer Care

Service you can count on


Generations ahead in every way

312F GC OEMStandard Equipment

  • C3.4B diesel engine
  • Meets Japan 2014 (Tier 4 Final) emission standards
  • 3000 m altitude capability
  • Two speed travel
  • Waved fin radiator with side-by-side type oil cooler
  • Radial seal air filter, double element
  • Cat battery

  • ROPS cab
  • Laminated glass front window 70/30 split (tempered glass)
  • Sliding upper door window (left-hand cab door)
  • Removable lower windshield with in cab storage bracket
  • Windshield washer and radial wipers
  • Interior lighting
  • Coat hook
  • Beverage holder
  • Ash tray
  • Literature holder
  • Radio (meet DIN size)
  • Rear window (emergency exit)
  • 1 × 12V power supply 10A
  • Two stereo speakers (two locations)
  • Storage compartment suitable for lunch box
  • Color LCD display with indicators, filter/fluid change, and working hour information
  • Neutral lever (lock out) for all controls
  • Utility space for magazine
  • Adjustable armrest
  • Adjustable console
  • Travel control pedals with removable hand levers
  • Capability of installing two additional pedals

  • Automatic swing parking brake
  • High performance hydraulic return filter
  • Reverse swing damping valve
  • Control pattern changer

  • Circuit breaker (12V)

  • Light, storage box mounted (one)

  • Grease lubricated track (GLT2)
  • Towing eye on base frame
  • Base frame with new eye for diagonal lashing
  • Standard idler tension spring

  • 2100 kg counterweight

  • Cat one key security system
  • Door locks and cap locks on fuel tanks
  • Signaling/warning horn
  • Secondary engine shutoff switch
  • Rear window for emergency exit
  • Mirrors (frame – right, cab – left)
  • Rearview camera
  • Machine Security System

  • Product Link Japan