Cat Excavators 312D Series 2

312D/D L Series 2 Hydraulic 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.

Specifications :

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

13 200 kg-13 900 kg (29,100 lb-30,640 lb)

Operating Weight – Long Undercarriage – Maximum Operating Weight**

13900 kg

Operating Weight – Long Undercarriage – Minimum Operating Weight*

13200 kg

Operating Weight – Standard Undercarriage – Maximum Operating Weight**

13600 kg

Operating Weight – Standard Undercarriage – Minimum Operating Weight*

12900 kg

Operating Weight – Standard Undercarriage*

12 900 kg-13 600 kg (28,440 lb-29,980 lb)

Swing Mechanism

Swing Torque

30.9 kN·m

Swing Speed

12.2 RPM

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

Maximum Pressure – Equipment

30500 kPa

Pilot System – Maximum Flow

21.9 L/min (1,340 in3/min)

Swing System – Maximum Flow

127 L/min

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

Fuel Tank Capacity

250 L

Swing Drive

3 L

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