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312D2 GC

Small Excavators

Good machine performance combined with low owning and operating costs make the Cat 312D GC Series 2 hydraulic excavator the preferred machine of choice for utility contractors. Unmatched versatility, improved controllability, easy operation, and a comfortable, redesigned operator station help make the 312D GC Series 2 an industry-leading performer.

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Engine Model 3054C

Flywheel Power 56 kW

Bore 105 mm

Stroke 127 mm

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312D2 GC

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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 equivalent emission standards. This engine incorporates a time-proven mechanical governor a... Read more

Hydraulics

Outstanding PerformanceThe 312D GC Series 2 hydraulic system is designed for high efficiency and performance. This compact design utilizes short tubes and lines to reduce... 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

Cat booms and sticks are welded, box-section structures with thick multi-plate high-strength steel fabrications. Service intervals are extended with self-lubricating bear... Read more

Versatility

Cat Buckets and Cat Ground Engaging Tools (GET) are designed and matched to the machine ensuring optimal performance and fuel consumption. They are built to Caterpillar s... Read more

Service and Maintenance

Ground Level ServiceThe design and layout of the 312D GC Series 2 was made with the service technician in mind. Most service locations are easily accessible at ground lev... 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 GC

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Engine

Engine Model	3054C
Flywheel Power	56 kW
Bore	105 mm
Stroke	127 mm
Engine Power - ISO 14396	59 kW
Net Power - SAE J1349/ISO 9249	56 kW
Note	The 312D GC Series 2 meets EU Stage II or IIIB equivalent sound standard.

Weights

Operating Weight	12500 kg
Operating Weight - Standard Undercarriage	12500 kg

Swing Mechanism

Swing Speed

11.2 r/min

Drive

Maximum Drawbar Pull	114 kN
Maximum Travel Speed	5.1 km/h

Hydraulic System

Main System - Maximum Flow - Total	232 l/min
Boom Cylinder - Bore	110 mm
Stick Cylinder - Stroke	1197 mm
Stick Cylinder - Bore	120 mm
Maximum Pressure - Travel	35000 kPa
Pilot System - Maximum Pressure	4120 kPa
Maximum Pressure - Equipment	30500 kPa
Maximum Pressure - Swing	23000 kPa
Bucket Cylinder - Stroke	939 mm
Pilot System - Maximum Flow	21.9 l/min
Bucket Cylinder - Bore	100 mm
Boom Cylinder - Stroke	1015 mm

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