303.5E CR

Mini Excavators

The Cat® 303.5E CR Mini Hydraulic Excavator delivers high performance in a compact design to help you work in the tightest applications.

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Engine Model Cat C1.8

Net Power 23.6 kW

Rated Net Power - 2,400 rpm - ISO 9249/EEC 80/1269 23.6 kW

Operating Weight 3732 kg

Availability

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303.5E CR

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FEATURES & BENEFITS

Security System

A standard anti-theft device uses a 5 digit alphanumeric password that is required to start the machine (when the security system is enabled). Read more

Adjustable Work Tool Auxiliary Flow Control

Simple adjustability of the hydraulic flow going down the boom and stick to the work tool. This is done by a simple selection from a flow of 1-15. Read more

Continuous Flow

Set the auxiliary flow in any direction and at any speed simply, safely, and easily on the right hand joystick. Read more

Economy Mode

Save up to 20% fuel while maintaining high productivity with a push of a button. Read more

SPECIFICATIONS FOR 303.5E CR

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Engine

Engine Model	Cat C1.8
Net Power	23.6 kW
Rated Net Power - 2,400 rpm - ISO 9249/EEC 80/1269	23.6 kW
Stroke	102.4 mm
Displacement	1.8 l
Bore	87 mm
Gross Power - ISO 14396	24.8 kW

Weights

Operating Weight	3732 kg
Operating Weight - With Canopy	3548 kg
Operating Weight - With Cab	3732 kg
Note	Weight includes counterweight, rubber tracks, bucket, operator, full fuel and auxiliary lines.

Travel System

Maximum Traction Force - Low Speed	31 kN
Travel Speed - High	4.6 km/h
Maximum Traction Force - High Speed	16.9 kN
Travel Speed - Low	2.6 km/h
Ground Pressure	32.1 kPa
Gradeability - Maximum	30°

Hydraulic System

Digging Force - Stick - Long	16.9 kN
Operating Pressure - Travel	245 bar
Operating Pressure - Equipment	245 bar
Auxiliary Circuit - Primary (186 bar/2,734 psi)	60 l/min
Auxiliary Circuit - Secondary (174 bar/2,524 psi)	27 l/min
Operating Pressure - Swing	181 bar
Digging Force - Stick - Standard	18.9 kN
Digging Force - Bucket	33 kN
Type	Load Sensing Hydraulics with Variable Displacement Piston Pump
Pump Flow at 2,400 rpm	87.6 l/min

Swing System

Machine Swing Speed	9 r/min
Note	*Automatic swing break, spring applied, hydraulic release.
Boom Swing - Right	50°
Boom Swing - Left*	80°

Blade

Width	1780 mm
Height	325 mm
Dig Depth	470 mm
Lift Height	400 mm

Service Refill Capacities

Cooling System	5.5 l
Engine Oil	7 l
Hydraulic Tank	42.3 l
Fuel Tank	46 l
Hydraulic System	65 l

Lift Capacities at Ground Level* - Lift Point Radius: 4000 mm (13'1")

Blade Up - Side	440 kg
Blade Down - Front	880 kg
Blade Down - Side	470 kg
Note	*The above loads are in compliance with hydraulic excavator lift capacity rating standard ISO 10567:2007 and they do not exceed 87% of hydraulic lifting capacity or 75% of tipping capacity. The excavator bucket weight is not included on this chart. Lifting capacities are for standard stick.
Blade Up - Front	490 kg

Lift Capacities at Ground Level* - Lift Point Radius: 3000 mm (9'8")

Blade Up - Side	680 kg
Blade Down - Front	1370 kg
Blade Up - Front	770 kg
Blade Down - Side	740 kg
Note	*The above loads are in compliance with hydraulic excavator lift capacity rating standard ISO 10567:2007 and they do not exceed 87% of hydraulic lifting capacity or 75% of tipping capacity. The excavator bucket weight is not included on this chart. Lifting capacities are for standard stick.