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Overview

Engine

Units:
Engine Model Cat® C4.4 ACERT™ Cat® C4.4 ACERT™ Less
Flywheel Power 91.0 hp 68.0 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
Gross Power - SAE J1995 95.0 hp 71.0 kW Less
Net Power - SAE J1349 91.0 hp 68.0 kW Less

Weights

Operating Weight 33080.0 lb 15000.0 kg Less
Maximum Operating Weight 33080.0 lb 15000.0 kg Less
Maximum Operating Weight** 33080.0 lb 15000.0 kg Less
Minimum Operating Weight 29770.0 lb 13500.0 kg Less
Minimum Operating Weight* 29770.0 lb 13500.0 kg Less

Swing Mechanism

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

Drive

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 Flow 5.8 gal/min 21.9 L/min 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) 67.0 gal/min 254.0 L/min Less
Maximum Pressure - Equipment 4424.0 psi 30500.0 kPa Less
Swing System - Maximum Flow 34.0 gal/min 127.0 L/min Less

Service Refill Capacities

Cooling System 5.81 gal 22.0 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
Swing Drive 0.63 gal 2.4 L Less

Standards

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

Track

Number of Carrier Rollers (each side) - Long Undercarriage 2 pieces 2 pieces Less
Number of Shoes (each side) - Long Undercarriage 46 pieces 46 pieces Less
Number of Track Rollers (each side) - Long Undercarriage 7 pieces 7 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

Engine

Reduced emissions, economical and reliable performance


Operator Station

Comfort and convenience to keep people productive


Hydraulics

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


Serviceability

Fast, easy and safe access built in


Safety

Features to help protect people


Complete Customer Care

Service you can count on


Sustainability

Generations ahead in every way


312E Standard Equipment

ENGINE
  • C4.4 diesel engine
  • Biodiesel capable
  • Meets EPA Tier 4 Interim emission standards
  • 2300 m (7,500 ft) altitude capability
  • 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
  • Cold weather battery -25° C (-13° F)
  • Jump start receptacle

HYDRAULIC SYSTEM
  • 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
  • Fine swing control

CAB
  • 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
  • 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 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)
  • Travel alarm
  • Laminated glass front upper window and tempered other windows
  • Sunscreen

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

COUNTERWEIGHT
  • 2.2 mt (2.4 t)

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

LIGHTS
  • Halogen boom light (left side)
  • Time delay function for boom light and cab light
  • Exterior lights integrated into storage box

SECURITY
  • 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-ready

312E Optional Equipment

ENGINE
  • Quick drains, engine and hydraulic oil

HYDRAULIC SYSTEM
  • Control pattern quick-changer, two way
  • Auxiliary hydraulics
  • Boom and stick lines
  • High-pressure line
  • Medium-pressure line
  • Cat quick coupler line - high-pressure capable
  • Boom lowering and stick lowering control device
  • Cat Bio hydraulic oil

CAB
  • Cab hatch emergency exit
  • Seat, high-back air suspension with heater and cooling
  • Seat, high-back air suspension with heater
  • Seat, high-back mechanical suspension
  • Windshield wiper, lower with washer
  • Air pre-filter
  • Left foot switch
  • Left pedal
  • Straight travel pedal
  • Rain protector
  • Cab mirror
  • Ashtray

UNDERCARRIAGE
  • 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 (8'2") blade with replaceable cutting edge
  • 2600 mm (8'6") blade with replaceable cutting edge
  • 2700 mm (8'10") blade with replaceable cutting edge
  • Swivel guard

FRONT LINKAGE
  • Quick coupler
  • Bucket linkage, without lifting eye
  • 4.65 m (15'3") reach boom
  • 2.5 m (8'2") stick
  • 2.8 m (9'2") stick
  • 3.0 m (9'10") stick
  • 3.0 m (9'10") thumb-ready stick

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

SECURITY
  • FOGS, bolt-on
  • Side steel bumper
  • Guard rail
  • Guard, cab front, mesh
  • Guard, vandalism
  • Rearview camera

TECHNOLOGY
  • Cat Grade Control Depth and Slope
  • Product Link







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