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Overview

Improved performance and rugged durability combine to maximize productivity.

Engine

Units:
Engine Model Cat® 3064T Cat® 3064T Less
Flywheel Power 90.0 hp 67.0 kW Less
Gross Power 94.0 hp 70.0 kW Less
ISO 9249 90.0 hp 67.0 kW Less
SAE J1349 90.0 hp 67.0 kW Less
EEC 80/1269 90.0 hp 67.0 kW Less
Bore 4.0 in 102.0 mm Less
Stroke 5.1 in 130.0 mm Less
Displacement 259.0 in3 4.25 L Less

Weights

Operating Weight 28970.0 lb 13140.0 kg Less
Operating Weight - Long Undercarriage 29010.0 lb 13160.0 kg Less

Swing Mechanism

Swing Torque 22830.0 lb ft 30950.0 kN·m Less
Swing Speed 12.4 RPM 12.4 RPM Less

Drive

Maximum Drawbar Pull 25200.0 lb 112.0 kN Less
Travel Speed 3.5 mph 5.7 km/h Less

Hydraulic System

Main Implement System - Maximum Flow (2x) 33.5 gal/min 127.0 L/min Less
Maximum Pressure - Implements 4340.0 psi 29900.0 kPa Less
Maximum Pressure - Travel 4980.0 psi 34300.0 kPa Less
Maximum Pressure - Swing 3340.0 psi 23000.0 kPa Less
Pilot System - Maximum Flow 6.3 gal/min 23.7 L/min Less
Pilot System - Maximum Pressure 600.0 psi 4120.0 kPa Less
Blade - Maximum Flow 15.5 gal/min 58.5 L/min Less
Blade System - Maximum Pressure 2990.0 psi 20600.0 kPa Less
Boom Cylinder - Bore 4.3 in 110.0 mm Less
Boom Cylinder - Stroke 40.0 in 1015.0 mm Less
Stick Cylinder - Bore 4.7 in 120.0 mm Less
Stick Cylinder - Stroke 47.1 in 1197.0 mm Less
Bucket Cylinder - Bore 3.9 in 100.0 mm Less
Bucket Cylinder - Stroke 37.0 in 939.0 mm Less

Service Refill Capacities

Fuel Tank 66.0 gal 250.0 L Less
Cooling System 4.6 gal 17.5 L Less
Engine Oil 4.6 gal 17.5 L Less
Swing Drive (each) 0.79 gal 3.0 L Less
Final Drive (each) 0.66 gal 2.5 L Less
Hydraulic System (including tank) 42.8 gal 162.0 L Less
Hydraulic Tank 23.8 gal 90.0 L Less

Dimensions

Transport width 30.31 in 770.0 mm Less

Engine

The four cylinder turbo-charged Cat 3064 T engine is built for power, reliability, economy and low emissions.


Hydraulics

Caterpillar hydraulics deliver power and control to keep material moving at high volume.


Undercarriage and Structures

Durable undercarriage absorbs stresses and provides excellent stability.


Front Linkage

Designed-in flexibility brings higher production and efficiency to all jobs.


Operator Station

Designed for simple operation, the 312C operator station allows the operator to focus on production.


Serviceability

Simplified service and maintenance features save you time and money.


Complete Customer Support

Cat dealer services help you operate longer with lower costs.


312C L Standard Equipment

Alternator, 50 amp

Automatic engine speed control

Automatic swing brake

Automatic work modes

Auxiliary hydraulic valve (1)

Bolt-on Falling Objects Guard System (FOGS) capability

Cab
  • AM/FM radio, 24-volt
  • Ash tray with cigar lighter
  • Bi-level air conditioner with defroster
  • Drink holder
  • Floor mat
  • Fully adjustable suspension seat
  • Horn
  • Hydraulic neutralizer lever for all controls
  • Joysticks, adjustable pilot-operated
  • Language display monitor with gauges
  • Light, interior
  • Light, storage box mounted (1)
  • Literature holder
  • Openable front windshield
  • Openable skylight with sunshade
  • Storage compartment
  • Travel control pedals with removable hand levers

Doors and caps lock with one-key security system

Mirrors (frame and cab)

Power train
  • Cat 3064T diesel engine
  • Swing-out oil cooler
  • Water separator

Undercarriage
  • 312C 20" (500 mm) triple grouser shoes
  • 312C L 24" (600 mm) triple grouser shoes and center section track guiding guards
  • Hydraulic track adjusters
  • Idler section track guiding guards
  • Track-type undercarriage with grease lubricated seals

312C L Optional Equipment

Air prefilter

Auxiliary hydraulics - dual directions and a medium pressure circuit

Auxiliary hydraulics for hydraulic hammer

Auxiliary hydraulics for hydraulic thumb

Auxiliary hydraulic lines from booms and sticks

Blade, 8'2" (2500 mm) with replaceable cutting edges (for 20" (500 mm) triple grouser shoes)

Blade, 8'6" (2600 mm) with replaceable cutting edges (for 24" (600 mm) triple grouser shoes)

Blade, 8'10" (2700 mm) with replaceable cutting edges (for 28" (700 mm) and 30" (770 mm) triple grouser shoes)

Boom lowering control device (mandatory in certain countries)

Bucket linkage

Cab fan

Cab front mesh guard for use with hammers

Cab mounted working lights

Cab with polycarbonate windows (mandatory in certain countries)

Cold weather start

Falling Object Guard System

Front windshield guard

Hand control pattern changer

Heavy-duty bottom guard

High ambient cooling system

KAB 527 seat

KAB 527 seat with heater

Lower windshield wiper

Power Supply 12V

Rain protector

Rear window with external opening provisions (mandatory in British Columbia)

Right side boom lights

Secondary exit, rear window (mandatory in certain countries)

Steel side bumpers

Stick and boom combinations:
  • 15'3" (4.65 m) boom with left side light
  • 9'10" (3.0 m) stick
  • 8'2" (2.5 m) stick

Straight travel pedal

Sun visor

Swivel guard

Track:
  • 312C 24" (600 mm) triple grouser shoes
  • 312C/312C L 28" (700 mm) triple grouser shoes
  • 312C L 30" (770 mm) triple grouser shoes
  • 312C 20" (500 mm) segment rubber track

Track guiding guard, center (312C)

Travel alarm (mandatory in certain countries)

Vandalism protection

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