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312D2/312D2 L

Small Excavators

Achieve high productivity and lower operating costs with the Cat 312D/D L Series 2 hydraulic excavator. Unmatched versatility, improved controllability, easy operation, and a comfortable, redesigned operator station help make the 312D/D L Series 2 an industry-leading performer.

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Engine Model 3054C
Flywheel Power 67 kW
Bore 105 mm
Stroke 127 mm
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312D2/312D2 L
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FEATURES & BENEFITS

Operator Station

Operator StationThe ergonomically designed operator station is spacious, quiet, and comfortable, assuring high productivity during a long work day. All switches are locat... Read more

Engine

The Cat 3054C engine has been designed to meet U.S. EPA Tier 2 and EU Stage II emission regulations. This engine incorporates a time-proven mechanical governor and a low-... Read more

Hydraulics

Outstanding PerformanceThe 312D/D L Series 2 hydraulic system is designed for high efficiency and performance. Auxiliary hydraulic and electrical lines are routed to the... Read more

Undercarriage and Structures

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

Front Linkage

Robust applications require robust machine designs. In order to meet your job site needs we use advanced engineering and software to analyze all structures, creating a du... Read more

Work Tools

Each Cat work tool is designed to optimize the versatility and performance of your machine. An extensive range which includes buckets, compactors, grapples, multi-process... Read more

Service and Maintenance

Ground Level ServiceThe design and layout of the 312D/D L Series 2 was made with the service technician in mind. Most service locations are easily accessible at ground le... Read more

Complete Customer Support

Product SupportYou will find nearly all parts at our dealer parts counter. Cat dealers utilize a worldwide computer network to find in-stock parts to minimize machine dow... Read more

SPECIFICATIONS FOR 312D2/312D2 L

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Engine
Engine Model 3054C
Flywheel Power 67 kW
Bore 105 mm
Stroke 127 mm
Displacement 4.4 l
Engine Power - ISO 14396 70 kW
Net Power - SAE J1349/ISO 9249 67 kW
Net Power - ISO 14396 70 kW
Weights
Operating Weight 13900 kg
Operating Weight - Long Undercarriage - Minimum Operating Weight* 13200 kg
Operating Weight - Long Undercarriage - Maximum Operating Weight** 13900 kg
Operating Weight - Standard Undercarriage* 12 900 kg-13 600 kg (28,440 lb-29,980 lb)
Operating Weight - Standard Undercarriage - Minimum Operating Weight* 12900 kg
Operating Weight - Standard Undercarriage - Maximum Operating Weight** 13600 kg
Operating Weight - Long Undercarriage 13 200 kg-13 900 kg (29,100 lb-30,640 lb)
Swing Mechanism
Swing Torque 30.9 kN·m
Swing Speed 12.2 r/min
Drive
Maximum Drawbar Pull 114 kN
Maximum Travel Speed 5.6 km/h
Hydraulic System
Maximum Pressure - Travel 35000 kPa
Maximum Pressure - Swing 23000 kPa
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
Main System - Maximum Flow - Total 254 l/min
Swing System - Maximum Flow 127 l/min
Pilot System - Maximum Flow 21.9 L/min (1,340 in3/min)
Maximum Pressure - Equipment 30500 kPa
Service Refill Capacities
Cooling System 17.88 l
Final Drive - Each 3 l
Hydraulic System - Including Tank 104 l
Hydraulic Tank 90.6 l
Engine Oil - With Filter 16 l
Swing Drive 3 l
Fuel Tank Capacity 250 l

SELECT MODELS TO COMPARE

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Engine Model Cat® C4.4 ACERT™
Flywheel Power 70 kW
Bore 105 mm
Stroke 127 mm
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319D L/LN

Engine Model C4.2 ACERT
Flywheel Power 93 kW
ISO 9249 93 kW
Net Power - SAE J1349 93 kW
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307B

Engine Model 4M40E1
Flywheel Power 41 kW
Gross Power 41 kW
ISO 9249 41 kW
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313F L

Engine Model C4.4 ACERT
Flywheel Power 68.5 kW
Bore 105 mm
Stroke 127 mm
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315

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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313

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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314D CR/314D LCR

Engine Model Cat® C4.2 ACERT™
Flywheel Power 67 kW
Gross Power 72 kW
SAE J1349 67 kW
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314E L CR

Engine Model Cat® C4.4 ACERT™
Flywheel Power 67 kW
Bore 105 mm
Stroke 127 mm
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How to buy

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