Caterpillar Performance Handbook, January 2017, SEBD0351-47

Specifications

Hydraulic Excavators

MODEL

312D2 L

312E

312E L

Region Offerings

Middle East, Africa, CIS, Asia Pacific, South America

Europe, Australia, New Zealand and Polynesia, Japan

North America, Europe, Australia, New Zealand and Polynesia

Engine Power: ISO 9249

67 kW

68 kW 68 kW

68 kW 68 kW

90 hp

91 hp 91 hp

91 hp 91 hp

SAE J1349

N/A

OperatingWeight*

13 200- 13 900 kg

13 200- 15 700 kg

13 200- 15 700 kg

29,100- 30,640 lb 0.4-1.0 yd 3

29,100- 34,620 lb

29,100- 34,620 lb

Bucket Capacity Range (heaped)

0.31-0.76 m 3

0.20-0.76 m 3

0.20-0.76 m 3

0.27-0.99 yd 3

0.27-1.0 yd 3

Engine Model

3054C

C4.4 ACERT

C4.4 ACERT

Emission Standards

Tier 2/Stage II Equivalent

Tier 4 Interim/Stage IIIB/ Japan 2011 (Tier 4 Interim) Equivalent

Tier 4 Interim/ Stage IIIB Equivalent

Rated Engine RPM No. of Cylinders

2200

1800

1800

4

4

4

Bore

105 mm 127 mm

105 mm 127 mm

105 mm 127 mm

4.13" 5.00"

4.13" 5.00"

4.13" 5.00"

Stroke

Displacement

4.4 L

4.4 L

4.4 L

269 in 3

269 in 3

269 in 3

Max. Implement Hydraulic Pump Output at Rated RPM

2 × 127 L/min

2 × 127 L/min

2 × 127 L/min

2 × 34 gpm

2 × 34 gpm

2 × 34 gpm

Relief Valve Settings: Implement Circuits

30 500 kPa 35 000 kPa 23 000 kPa

30 500 kPa 35 000 kPa 23 000 kPa

30 500 kPa 35 000 kPa 23 000 kPa

4424 psi 5080 psi 3340 psi 600 psi 25,630 lbf

4424 psi 5076 psi 3336 psi 598 psi 25,628 lbf

4424 psi 5076 psi 3336 psi 598 psi 25,628 lbf

Travel Circuits Swing Circuits Pilot Circuits

4100 kPa

4120 kPa

4120 kPa

Maximum Drawbar Pull

114 kN

114 kN

114 kN

Two Speed Travel

MaximumTravel Speed at Rated RPM Lo: 3.8 km/h

5.5 km/h

5.5 km/h

2.4 mph 3.5 mph

3.4 mph

3.4 mph

Hi: 5.6 km/h

Width of Standard Track Shoe

500 mm 3750 mm

700 mm 3750 mm

700 mm 3750 mm

1'8"

28"

28"

Overall Track Length

12'4"

12'4"

12'4"

Ground Contact Area with Std. Shoe

3.29 m 2

4.2 m 2

4.6 m 2

5100 in 2

6600 in 2

7150 in 2

Track Gauge

1990 mm

1990 mm

1990 mm

6'6"

6'6"

6'6"

Fuel Tank Refill Capacity

250 L 104 L

250 L 162 L

250 L 162 L

66 U.S. gal 27.5 U.S. gal

66.04 U.S. gal 42.8 U.S. gal

66.04 U.S. gal 42.8 U.S. gal

Hydraulic System (includes tank)

*Operating weight includes coolant, lubricants, full fuel tank, standard shoes, bucket, medium stick, and operator 75 kg (165 lb) . NOTE: Certain models may not be available in all Sales areas. Specifications also vary by Sales area. Contact your Cat dealer for details.

7-16 Edition 47