Cat 303.5E2 CR Excavator

Product Information

Category: Excavators.

Overview

The Cat E2 Series Mini Hydraulic Excavators are designed to carry on the solid performance of their E Series predecessors, while adding even greater value for the customer. The new High Definition Hydraulic (HDH) System, redesigned operator station and enhanced digital control panel specially designed for Cat Mini Excavators – COMPASS (Complete, Operation, Maintenance, Performance And Security System) – are all standard features that improve performance and increase value.

Engine

Units:

US
Metric

Engine Model	Cat® C1.7 Cat® C1.7	More Less
Net Power	23.5 hp 17.5 kW	More Less
Gross Power	24.8 hp 18.5 kW	More Less
Bore	3.4 in 87.0 mm	More Less
Stroke	3.6 in 92.4 mm	More Less
Displacement	104.0 in3 1.7 L	More Less
Net Power (ISO 9249)	23.5 hp 17.5 kW	More Less
Rated Net Power (ISO 9249)	23.5 hp 17.5 kW	More Less
Note	Cat C1.7 engine meets U.S. EPA Tier 4 Final/EU Stage IIIB emission standards. Cat C1.7 engine meets U.S. EPA Tier 4 Final/EU Stage IIIB emission standards.	More Less

Weights

Operating Weight	8209.0 lb 3723.0 kg	More Less
Operating Weight with Cab	8209.0 lb 3723.0 kg	More Less
Operating Weight with Canopy	7803.0 lb 3539.0 kg	More Less
Note	Weight includes rubber tracks, bucket, operator, full fuel and auxiliary lines. Weight includes rubber tracks, bucket, operator, full fuel and auxiliary lines.	More Less

Travel System

Travel Speed – High	2.9 mph 4.6 km/h	More Less
Travel Speed – Low	2.0 mph 3.2 km/h	More Less
Maximum Traction Force – High Speed	3822.0 lbf 17.0 kN	More Less
Maximum Traction Force – Low Speed	6992.0 lbf 31.1 kN	More Less
Ground Pressure	4.6 psi 31.7 kPa	More Less

Hydraulic System

Pump Flow	26.4 gal/min 100.0 L/min	More Less
Operating Pressure – Equipment	3553.0 psi 245.0 bar	More Less
Operating Pressure – Travel	3553.0 psi 245.0 bar	More Less
Operating Pressure – Swing	3132.0 psi 216.0 bar	More Less
Auxiliary Circuit – Primary	18.5 gal/min 70.0 L/min	More Less
Auxiliary Circuit – Secondary	6.6 gal/min 25.0 L/min	More Less
Digging Force = Stick (standard)	4249.0 lbf 18.9 kN	More Less
Digging Force = Stick (long)	3799.0 lbf 16.9 kN	More Less
Digging Force = Bucket	7419.0 lbf 33.0 kN	More Less
Note	Load sensing hydraulics with variable displacement piston pump. Load sensing hydraulics with variable displacement piston pump.	More Less

Swing System

Machine Swing Speed	10.0 rpm 10.0 rpm	More Less
Boom Swing – Left (without stop)	80° 80°	More Less
Boom Swing – Left (with stop)	55° 55°	More Less
Swing – Right	50° 50°	More Less

Blade

Width	70.0 in 1780.0 mm	More Less
Height	13.0 in 325.0 mm	More Less
Dig Depth	19.0 in 470.0 mm	More Less
Lift Height	16.0 in 400.0 mm	More Less

Service Refill Capacities

Cooling System	1.5 gal 5.5 L	More Less
Engine Oil	1.8 gal 7.0 L	More Less
Hydraulic Tank	11.2 gal 42.3 L	More Less
Fuel Tank	12.2 gal 46.0 L	More Less
Hydraulic System	17.2 gal 65.0 L	More Less

Standard Stick

Long Stick

1 Dig Depth

2880 mm

113 in

3180 mm

125 in

2 Vertical Wall

2320 mm

91 in

2470 mm

97 in

3 Maximum Reach at Ground Level

5060 mm

199 in

5320 mm

209 in

4 Maximum Reach

5200 mm

205 in

5440 mm

214 in

5 Maximum Dig Height

4920 mm

194 in

5030 mm

198 in

6 Maximum Dump Clearance

3520 mm

139 in

3640 mm

143 in

7 Boom In Reach

2060 mm

81 in

2180 mm

86 in

8 Tail Swing

890 mm

35 in

890 mm

35 in

9 Maximum Blade Height

400 mm

16 in

400 mm

16 in

10 Maximum Blade Depth

470 mm

19 in

470 mm

19 in

11 Boom Height in Shipping Position

1420 mm

56 in

1650 mm

65 in

12 O/A Shipping Height

2500 mm

98 in

2500 mm

98 in

13 Swing Bearing Height

565 mm

22 in

565 mm

22 in

14 O/A Undercarriage Length

2220 mm

87 in

2220 mm

87 in

15 O/A Shipping Length

4730 mm

186 in

4790 mm

189 in

16 Boom Swing Right

765 mm

30 in

765 mm

30 in

17 Boom Swing Left

670 mm

26 in

670 mm

26 in

18 Track Belt/Shoe Width

300 mm

12 in

300 mm

12 in

19 O/A Track Width

1780 mm

70 in

1780 mm

70 in

303.5E2 CR Lift Capacities at Ground Level*

Lift Point Radius

3000 mm (9’8″)

4000 mm (13’1″)

Front

Side

Front

Side

Blade Down

1340

720

850

460

2,955

1,588

1,874

1,014

Blade Up

750

660

470

420

1,654

1,455

1,036

926

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Operational Data

Units:

US
Metric

Digging force - Bucket	2000.0 lb 8.9 kN	More Less
Digging force - Stick	1011.0 lb 4.5 kN	More Less
Operating weight with Safety frame	2170.0 lb 985.0 kg	More Less
Operating weight without Safety frame	2061.0 lb 935.0 kg	More Less

Engine

Engine Model	Yanmar 31NV70 Yanmar 31NV70	More Less
Net Power	13.0 hp 9.6 kW	More Less
Rated speed	2100.0 RPM 2100.0 RPM	More Less
Battery	12 V, 20 Amp 12 V, 20 Amp	More Less
Diesel tank volume	2.64 gal 10.0 L	More Less
Displacement	52.0 in3 854.0 cm3	More Less
Flywheel output ISO	13.0 hp 9.6 kW	More Less
Gross Power (ISO 14396)	18.0 hp 13.7 kW	More Less
Make/type	Yanmar 31NV70 Yanmar 31NV70	More Less
Maximum engine output	18.0 hp 13.7 kW	More Less
Type	Water cooled model 3-cylinder diesel engine Water cooled model 3-cylinder diesel engine	More Less

Weight

Operating weight with Safety frame	2170.0 lb 985.0 kg	More Less
Operating weight without Safety frame	2061.0 lb 935.0 kg	More Less

Weights

Operating Weight

2061.0 lb 935.0 kg

More Less

Dimensions

Boom swing angle (Left)	55.0 Degrees 55.0 Degrees	More Less
Boom swing angle (Right)	56.0 Degrees 56.0 Degrees	More Less
Height with ROPS safety frame folded down	4.94 ft 1507.0 mm	More Less
Height with ROPS safety frame unfolded	7.47 ft 2276.0 mm	More Less
Length of undercarriage	4.0 ft 1220.0 mm	More Less
Maximum Digging Depth	5.68 ft 1731.0 mm	More Less
Maximum Dump Height	6.68 ft 2035.0 mm	More Less
Maximum dig height	9.39 ft 2863.0 mm	More Less
Maximum dozer dig depth	7.0 in 174.0 mm	More Less
Maximum dozer lift height	8.0 in 197.0 mm	More Less
Maximum reach	10.09 ft 3074.0 mm	More Less
Maximum reach at ground level	9.92 ft 3023.0 mm	More Less
Maximum vertical dig depth	4.43 ft 1349.0 mm	More Less
Minimum front linkage swing radius	3.77 ft 1150.0 mm	More Less
Tail swing radius	2.41 ft 736.0 mm	More Less
Track width	7.0 in 180.0 mm	More Less
Transport length (arm lowered)	9.0 ft 2746.0 mm	More Less
Undercarriage Width - Extended	2.83 ft 864.0 mm	More Less
Undercarriage Width - Retracted	2.33 ft 711.0 mm	More Less
Width	2.4 ft 730.0 mm	More Less

Hydraulic System

Pumps	2 gear pumps 2 gear pumps	More Less
Discharge capacity	11.4 + 11.4 L/min (3 + 3 gal/min) 11.4 + 11.4 L/min (3 + 3 gal/min)	More Less
Hydraulic tank capacity	3.7 gal 14.0 L	More Less
Operating pressure for the work and travel hydraulics	2466.0 psi 170.0 bar	More Less
Operating pressure pivot	1015.0 psi 70.0 bar	More Less

Chassis and Swivel Gear

Gradeability	30°/58% 30°/58%	More Less
Ground clearance	5.0 in 127.0 mm	More Less
Ground pressure	3.5 psi 0.25 kg/cm2	More Less
Machine swing speed	8.0 RPM 8.0 RPM	More Less
Number of rollers per side	2 2	More Less
Track width	7.0 in 180.0 mm	More Less
Travel speed	1.12 mph 1.8 km/h	More Less