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312D / 312D L Hydraulic Excavators

312D / 312D L Hydraulic Excavators

overview specifications optional

Units:US | Metric

Engine
Engine Model C4.2 ACERT
Flywheel Power

91 hp

/

67 kW

Gross Power

98 hp

/

72 kW

Bore

4.02 in

/

102 mm

Stroke

5.12 in

/

130 mm

Displacement

259.35 in3

/

4.25 L

Weights
Operating Weight

29696 lb

/

13470 kg

Operating Weight - Long Undercarriage

29696 lb

/

13470 kg

Swing Mechanism
Swing Torque

22864.43 lb ft

/

31 kN·m

Swing Speed

12.4 RPM

/

12.4 RPM

Drive
Maximum Drawbar Pull

25628.21 lb

/

114 kN

Maximum Travel Speed

3.42 mph

/

5.5 km/h

Hydraulic System
Main Implement System - Maximum Flow (2x)

33.55 gal/min

/

127 L/min

Maximum Pressure - Implements

44.24 psi

/

305 kPa

Maximum Pressure - Travel

50.76 psi

/

350 kPa

Maximum Pressure - Swing

33.36 psi

/

230 kPa

Pilot System - Maximum Flow

5.81 gal/min

/

22 L/min

Pilot System - Maximum Pressure

5.95 psi

/

41 kPa

Boom Cylinder - Bore

4.33 in

/

110 mm

Boom Cylinder - Stroke

39.96 in

/

1015 mm

Stick Cylinder - Bore

4.72 in

/

120 mm

Stick Cylinder - Stroke

47.13 in

/

1197 mm

Bucket Cylinder - Bore

3.94 in

/

100 mm

Bucket Cylinder - Stroke

36.97 in

/

939 mm

Service Refill Capacities
Fuel Tank

66.04 gal

/

250 L

Cooling System

4.76 gal

/

18 L

Engine Oil

5.28 gal

/

20 L

Swing Drive (each)

.79 gal

/

3 L

Final Drive (Each)

.79 gal

/

3 L

Hydraulic System (Including Tank)

42.8 gal

/

162 L

Hydraulic Tank

39.63 gal

/

150 L