Cat Excavators 312D

312D/312D L Hydraulic Excavator - 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.

Specifications :

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 RPM

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

Counterweight Clearance

915 mm

Length to Center of Rollers

3040 mm

Length to Center of Rollers - LC

3.04 m

Length to Center of Rollers - STD

2.78 m

Shipping Height

2830 mm

Shipping Height - LC

2.83 m

Shipping Height - STD

2.83 m

Transport width - LC

2.59 m

Transport width - STD

2.49 m

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