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312E

Small Excavators

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Engine Model Cat® C4.4 ACERT™
Flywheel Power 68 kW
Bore 105 mm
Stroke 127 mm
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312E
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FEATURES & BENEFITS

Engine

Cat® C4.4 ACERT™ EngineThe Cat C4.4 ACERT engine delivers the same level of performance using significantly less fuel than the previous series engine.Emissions SolutionEq... Read more

Operator Station

SeatsThe seat range includes air suspension, heated, and air cooled options. All seats include a reclining back, upper and lower seat slide adjustments, and height and ti... Read more

Hydraulics

Main Control Valve and Auxiliary ValvesThe 312E uses a high-pressure system to tackle the toughest of work in short order. The machine features a highly efficient and sim... Read more

Structures & Undercarriage

FrameThe upper frame includes reinforced mountings to support the Roll-Over Protective Structure (ROPS) cab; the lower frame is reinforced to increase component durabilit... Read more

Front Linkage

Booms and SticksThe 312E is offered with a reach boom and three stick configurations: R2.5 m (8'2"), R2.8 m (9'2"), and R3.0 m (9'10"). Also, a new thumb-ready stick with... Read more

Work Tools

You can extend the versatility and performance of your machine with the full lineup of Cat work tools. Each tool equips your machine to perform many different tasks found... Read more

Integrated Technologies

Cat® Grade Control Depth and SlopeThis optional system combines traditional machine control and guidance with standard factory-installed and calibrated components, making... Read more

Serviceability

Service DoorsWide service doors feature sturdier hinges and latches and a new screen design to help prevent debris entry; a one-piece hood (1) provides easier access to t... Read more

Safety

ROPS CabThe ROPS-certified cab (1) allows an Operator Protective Guard to be bolted directly to it.Sound ProofingImproved sealing and cab roof lining lower noise levels i... Read more

SPECIFICATIONS FOR 312E

Collapse All
Engine
Engine Model Cat® C4.4 ACERT™
Flywheel Power 68 kW
Bore 105 mm
Stroke 127 mm
Displacement 4.4 l
Net Power - SAE J1349 68 kW
Gross Power - SAE J1995 71 kW
Weights
Operating Weight 15000 kg
Minimum Operating Weight 13500 kg
Maximum Operating Weight 15000 kg
Minimum Operating Weight* 13500 kg
Maximum Operating Weight** 15000 kg
Swing Mechanism
Swing Torque 30.9 kN·m
Swing Speed 11.5 r/min
Drive
Maximum Drawbar Pull 114 kN
Maximum Travel Speed 5.5 km/h
Hydraulic System
Maximum Pressure - Travel 35000 kPa
Maximum Pressure - Swing 23000 kPa
Pilot System - Maximum Flow 21.9 l/min
Pilot System - Maximum Pressure 4120 kPa
Boom Cylinder - Bore 110 mm
Boom Cylinder - Stroke 1015 mm
Stick Cylinder - Bore 120 mm
Stick Cylinder - Stroke 1197 mm
Bucket Cylinder - Bore 100 mm
Bucket Cylinder - Stroke 939 mm
Swing System - Maximum Flow 127 l/min
Main System - Maximum Flow - Total 254 l/min
Maximum Pressure - Equipment 30500 kPa
Service Refill Capacities
Cooling System 22 l
Final Drive - Each 3 l
Hydraulic System - Including Tank 164 l
Hydraulic Tank 90.6 l
Engine Oil - With Filter 13.5 l
Fuel Tank Capacity 250 l
Swing Drive 2.4 l
Standards
ROPS Cab ISO 12117-2
Brakes ISO 10265 2008
Cab/OPG ISO 10262 1998
Track
Number of Shoes - Each Side - Long Undercarriage 46 pieces
Number of Carrier Rollers - Each Side - Long Undercarriage 2 pieces
Number of Track Rollers - Each Side - Long Undercarriage 7 pieces
Sound Performance
Operator Noise (Closed) - ISO 6396 69 dB(A)
Spectator Noise - ISO 6395 100 dB(A)

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Flywheel Power 67 kW
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Net Power - ISO 9249 88 kW
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Engine Power - ISO 14396 91 kW
Bore 105 mm
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Net Power - ISO 9249 69 kW
Engine Model C4.4
Bore 105 mm
Stroke 127 mm
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Engine Model Cat® C3.4B
Flywheel Power 52 kW
Bore 99 mm
Stroke 110 mm
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Flywheel Power 56 kW
Bore 105 mm
Stroke 127 mm
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Net Power - ISO 9249 80.9 kW
Engine Model Cat C3.6
Engine Power - ISO 14396 82 kW
Bore 98 mm
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Flywheel Power 59 kW
Gross Power 63 kW
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