Caterpillar Performance Handbook, January 2017, SEBD0351-47

Specifications

Hydraulic Excavators

MODEL

303E CR

303.5E CR

303.5E2 CR

Region Offerings

North America, South America, Canada, Australia, New Zealand

North America, South America, Canada, Australia, New Zealand, Europe, Africa, Middle East

North America**, South America***, Canada***, Australia***, New Zealand***, Africa***, Middle East***

Flywheel Power OperatingWeight*

17.5 kW 3530 kg

23.6 kW 3692 kg

17.5 kW 3860 kg

23.5 hp 7782 lb

31.6 hp 8139 lb

23.5 hp 8511 lb

Bucket Capacity Range (heaped)

0.05-0.20 m 3

0.05-0.16 m 3

0.05-0.16 m 3

0.06-0.26 yd 3

0.06-0.21 yd 3

0.06-0.21 yd 3

Engine Model

Cat ® C1.3

Cat C1.8

Cat C1.7

Emission Standards

Tier 4 Final/Stage IIIB

Tier 4 Interim/ Stage IIIB Equivalent

Tier 4 Final/Stage IIIB** OR Tier 4 Interim/ Stage IIIB Equivalent***

Rated Engine RPM No. of Cylinders

2400

2400

2200

7

3

3

3

Bore

78 mm 88 mm 1.261 L

87 mm

87 mm

3.1" 3.5"

3.4"

3.4" 3.6"

Stroke

102.4 mm

92.4 mm

4"

Displacement

1.8 L

1.7 L

77 in 3

110 in 3

104 in 3

Max. Implement Hydraulic Pump Output at Rated RPM

87.6 L/min

87.6 L/min

100 L/min

23.14 gpm

23.14 gpm

26.4 gpm

Relief Valve Settings: Implement Circuits

24.5 MPa 24.5 MPa 18.1 MPa

24.5 MPa 24.5 MPa 18.1 MPa

24.5 MPa 24.5 MPa 21.6 MPa

3553 psi 3553 psi 2625 psi 6947 lbf

3553 psi 3553 psi 2625 psi 6969 lbf

3553 psi 3553 psi 3132 psi 6992 lbf

Travel Circuits Swing Circuits

Maximum Drawbar Pull

30.9 kN

31.0 kN

31.1 kN

Two Speed Travel

Two Speed Travel

Two Speed Travel

MaximumTravel Speed at Rated RPM Lo: 2.42 km/h

Lo: 2.6 km/h Hi: 4.6 km/h

Lo: 3.2 km/h Hi: 4.6 km/h

1.5 mph 2.8 mph

1.6 mph 2.8 mph

2.0 mph 2.9 mph

Hi: 4.51 km/h

Width of Standard Track Shoe

300 mm 2210 mm

300 mm 2220 mm

300 mm 2220 mm

12" 7'3"

12" 7'3"

1'0" 7'3"

Overall Track Length

Ground Contact Area with Std. Shoe

1.1 m 2

1.19 m 2

1.19 m 2

1705 in 2

1845 in 2

1845 in 2

Track Gauge

1250 mm

1480 mm

1480 mm

48"

58"

58"

Fuel Tank Refill Capacity

45 L 65 L

46 L 65 L

46 L 65 L

11.9 U.S. gal 17.2 U.S. gal

12.2 U.S. gal 17.2 U.S. gal

12.2 U.S. gal 17.2 U.S. gal

Hydraulic System (includes tank)

*Operating weight includes coolant, lubricants, full fuel tank, cab, standard shoes, bucket, medium stick, and operator 75 kg (165 lb) . **Meets Tier 4 Final/Stage IIIB emission standards.

***Meets Tier 4 Interim/Stage IIIB Equivalent emission standards. NOTE: Certain models may not be available in all Sales areas. Specifications also vary by Sales area. Contact your Cat dealer for details.

Edition 47 7-11