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312D/312D L

Small Excavators

Achieve high productivity and lower operating costs with the Cat® 312D Hydraulic Excavator. Unmatched versatility, improved controllability, easy operation and a comfortable, redesigned operator station help make the 312D an industry-leading performer.

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Engine Model Cat® C4.2 ACERT™
Flywheel Power 67 kW
Gross Power 72 kW
SAE J1349 67 kW
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312D/312D L
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FEATURES & BENEFITS

Operator Station

Experience a spacious, quiet and comfortable operator station. The cab is pressurized to 50 Pa to reduce the amount of dust that enters the cab, keeping the operator comf... Read more

Engine

The Cat® C4.2 engine with ACERT™ Technology optimizes performance and meets U.S. EPA Tier 3 and EU Stage IIIA regulations. In conjunction with integrated electronics, ACE... Read more

Hydraulics

Outstanding PerformanceWith two percent more hydraulic pressure for additional lift and breakout forces, the 312D hydraulic system is designed for high efficiency and per... Read more

Undercarriage/Structures

Caterpillar uses advanced engineering and software to analyze all structures, creating a durable, reliable machine for the toughest applications. More than 70 percent of... Read more

Front Linkage

Built for performance and long service life, Cat booms and sticks are welded, box-section structures with thick multi-plate high strength steel fabrications. Service inte... Read more

Versatility

Work ToolsCaterpillar offers a variety of work tools, including hammers, thumbs, grapples, multi-processors, shears, pulverizers and vibratory compactors to fit your appl... Read more

Serviceability

Designed with the service technician in mind, many service locations are at ground level so critical maintenance can be done quickly and efficiently. Longer maintenance i... Read more

Technology Products

AccuGrade™ SystemsAccuGrade™ Grade Control Systems are easy to use and deliver a wide range of benefits to customers, including: Increased productivity Increased job-sit... Read more

Customer Support

Your Cat dealer is ready to assist you with your purchase decision and everything after. Make detailed comparisons of the machines you are considering before you buy with... Read more

SPECIFICATIONS FOR 312D/312D L

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Engine
Engine Model Cat® C4.2 ACERT™
Flywheel Power 67 kW
Gross Power 72 kW
SAE J1349 67 kW
Bore 102 mm
Stroke 130 mm
Displacement 4.25 l
Net Power - SAE J1349 67 kW
Weights
Operating Weight 12920 kg
Operating Weight - Standard Undercarriage 12920 kg
Operating Weight - Long Undercarriage 13450 kg
Swing Mechanism
Swing Torque 30950 kN·m
Swing Speed 12.4 r/min
Drive
Maximum Drawbar Pull 114 kN
Travel Speed 5.5 km/h
Hydraulic System
Main Implement System - Maximum Flow (2x) 127 l/min
Maximum Pressure - Implements 30500 kPa
Maximum Pressure - Travel 35000 kPa
Maximum Pressure - Swing 23000 kPa
Pilot System - Maximum Flow 36 l/min
Pilot System - Maximum Pressure 4120 kPa
Blade System - Maximum Pressure 20600 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
Service Refill Capacities
Fuel Tank 250 l
Cooling System 17.9 l
Engine Oil 17.5 l
Swing Drive - Each 3 l
Final Drive - Each 3 l
Hydraulic System - Including Tank 104 l
Hydraulic Tank 90.7 l
Standards
Cab/FOGS SAE J1356 FEB88 ISO 10262
Dimensions
Transport Width 2490 mm
Shipping Height - STD 2.83 m
Shipping Height 2830 mm
Shipping Height - LC 2.83 m
Transport Width - LC 2.59 m
Length - Center of Rollers 3040 mm
Transport Width - STD 2.49 m
Length - Center of Rollers - STD 2.78 m
Counterweight Clearance 915 mm
Length - Center of Rollers - LC 3.04 m

SELECT MODELS TO COMPARE

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314E SR

Engine Model Cat® C4.4
Flywheel Power 68 kW
Operating Weight 14700 kg
Maximum Bucket Capacity 0.45 m³
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315D L

Engine Model Cat® C4.2 ACERT™
Flywheel Power 86 kW
Gross Power 91 kW
ISO 9249 86 kW
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313D2 L (2017)

Net Power - ISO 9249 68 kW
Engine Model C4.4
Engine Power - ISO 14396 75 kW
Bore 105 mm
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Small Excavators

311D LRR

Engine Model Cat® C4.2 ACERT™
Flywheel Power 60 kW
Gross Power 64 kW
ISO 9249 60 kW
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315F L Forestry (2017)

Net Power - ISO 9249 72 kW
Engine Model Cat C4.4
Bore 105 mm
Stroke 127 mm
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Small Excavators

313

Engine Model Cat® C3.6
Engine Power - ISO 14396 74.4 kW
Engine Power - ISO 14396 - Metric 101 mhp
Net Power - ISO 9249 70.6 kW
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Small Excavators

314C LCR

Engine Model 3064T
Flywheel Power 67 kW
Gross Power 70 kW
ISO 9249 67 kW
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312F GC

Net Power - ISO 9249 52 kW
Engine Model C3.4B
Engine Power - ISO 14396 54 kW
Bore 99 mm
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of

related attachment

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General Duty

General Duty Bucket 1000 mm (39 in): 591-0062
General Duty

General Duty Bucket 1050 mm (42 in): 594-7618
Performance Hammers

H115 S
Hammers

H95Es

How to buy

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