303E CR Mini Excavators

The Cat® 303E CR Mini Hydraulic Excavator delivers high performance, durability and versatility in a compact design to help you work in a variety of applications.

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The Cat 303E CR Mini Excavator delivers high performance in a 3-ton compact size machine for construction, landscaping and demolition jobs.

Net Power: 23.5 hp
Operating Weight - With Cab: 7204 lb
Dig Depth: 117 in
Engine Model: Cat C1.3

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Specifications
Features
Standard Equipment

Engine specifications
Net Power	17.5 kW
Engine Model	Cat C1.3
Gross Power	18.5 kW
Gross Power - ISO 14396	18.5 kW
Note	Cat C1.3 engine meets U.S. EPA Tier 4 Final/EU Stage V emission standards.
Stroke	88 mm
Bore	78 mm
Displacement	1.3 l
Rated Net Power - 2,400 rpm - ISO 9249/EEC 80/1269	17.5 kW

Weights specifications
Operating Weight - With Cab	3267 kg
Operating Weight - With Canopy	3048 kg
Note	Weight includes counterweight, rubber tracks, bucket, operator, full fuel and auxiliary lines.

Travel System specifications
Maximum Traction Force - Low Speed	30.9 kN
Travel Speed - High	4.5 km/h
Travel Speed - Low	2.4 km/h
Maximum Traction Force - High Speed	15.2 kN
Ground Pressure - Cab Standard Stick	32.6 kPa
Ground Pressure - Cab Long Stick	33 kPa
Ground Pressure with Canopy - Long Stick, Optional Counterweight	33.5 kPa
Ground Pressure - Canopy Standard Stick	30.4 kPa
Gradeability - Continuous Operation	20°
Ground Pressure - Canopy Long Stick	30.8 kPa
Ground Pressure with Canopy - Standard Stick, Optional Counterweight	33 kPa
Ground Pressure with Cab - Standard Stick, Optional Counterweight	35.2 kPa
Gradeability (< 10 minutes Operation)	30°
Ground Pressure with Cab - Long Stick, Optional Counterweight	35.6 kPa

Hydraulic System specifications
Operating Pressure - Swing	181 bar
Digging Force - Bucket	28.4 kN
Pump Flow at 2,400 rpm	88 L/min
Operating Pressure - Travel	245 bar
Digging Force - Stick - Standard	16.6 kN
Operating Pressure - Equipment	245 bar
Auxiliary Circuit - Secondary (174 bar/2,523 psi)	27 L/min
Digging Force - Stick - Long	14.8 kN
Auxiliary Circuit - Primary (186 bar/2,697 psi)	60 L/min
Type	Load Sensing Hydraulics with Variable Displacement Piston Pump

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

Blade specifications
Width	1550 mm
Height	335 mm
Dig Depth	472 mm
Lift Height	402 mm

Service Refill Capacities specifications
Engine Oil	5.7 l
Fuel Tank	45 l
Hydraulic Tank	47 l
Cooling System	4.7 l
Hydraulic System	65 l

Dimensions (Approximate) - Long Stick specifications
Dig Depth	2980 mm
Maximum Reach	5040 mm
Track Belt/Shoe Width	300 mm
Overall Undercarriage Length	2080 mm
Overall Shipping Height	2500 mm
Maximum Reach - Ground Level	4910 mm
Tail Swing	775 mm
Vertical Wall	1750 mm
Boom In Reach	2000 mm
Maximum Dig Height	4250 mm
Boom Swing Right	825 mm
Maximum Blade Depth	470 mm
Tail Swing with Extra Counterweight	890 mm
Maximum Blade Height	400 mm
Overall Track Width	1550 mm
Swing Bearing Height	565 mm
Boom Height in Shipping Position	1600 mm
Boom Swing Left	610 mm
Maximum Dump Clearance	2970 mm
Overall Shipping Length	5030 mm

Lift Capacities at Ground Level* - Lift Point Radius: 3000 mm (9'8") specifications
Blade Down - Side	540 kg
Blade Down - Front	1170 kg
Blade Up - Side	490 kg
Blade Up - Front	650 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 machine with cab, optional counterweight and standard stick.

Undercarriage specifications
Number of Carrier Rollers	1
Track Roller Type	Center Flange
Number of Track Rollers	4

Operating Specifications specifications
Machine Overhang with Counterweight	115 mm
Machine Overhang	in
Stick Length - Long	1560 mm
Stick Length - Standard	1260 mm

Lift Capacities at Ground Level* - Lift Point Radius: 4000 mm (13'1") specifications
Blade Up - Side	300 kg
Blade Down - Front	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 machine with cab, optional counterweight and standard stick.
Blade Down - Side	340 kg
Blade Up - Front	410 kg

Dimensions (Approximate) - Standard Stick specifications
Tail Swing	775 mm
Maximum Dump Clearance	3150 mm
Track Belt/Shoe Width	300 mm
Overall Track Width	1550 mm
Maximum Dig Height	4530 mm
Dig Depth	2750 mm
Overall Undercarriage Length	2080 mm
Boom Swing Left	610 mm
Boom Swing Right	825 mm
Tail Swing with Extra Counterweight	890 mm
Maximum Blade Height	402 mm
Maximum Blade Depth	472 mm
Boom Height in Shipping Position	1590 mm
Swing Bearing Height	565 mm
Maximum Reach	4950 mm
Overall Shipping Height	2500 mm
Vertical Wall	1960 mm
Overall Shipping Length	4470 mm
Maximum Reach - Ground Level	4810 mm
Boom In Reach	2110 mm

Weights* specifications
Operating Weight with Canopy - Long Stick, Optional Counterweight	3356 kg
Operating Weight with Canopy - Long Stick	3090 kg
Operating Weight with Cab - Standard Stick	3267 kg
Operating Weight with Canopy - Standard Stick	3048 kg
Operating Weight with Cab - Standard Stick, Optional Counterweight	3533 kg
Operating Weight with Cab - Long Stick	3309 kg
Note	*Weight includes counterweight, rubber tracks, bucket, operator, full fuel and auxiliary lines.
Operating Weight with Canopy - Standard Stick, Optional Counterweight	3314 kg
Operating Weight with Cab - Long Stick, Optional Counterweight	3575 kg

Certification - Cab and Canopy specifications
Top Guard	ISO 10262:1998 (Level I)
Roll Over Protective Structure (ROPS)	ISO 12117-2:2008
Tip Over Protective Structure (TOPS)	ISO 12117:1997

Compact Radius

The 303E allows you to easily reposition within a confined space and increase your overall productivity. Proficient movement is enhanced as a result of the limited tailswing and swing boom design.

Transport

With an operating weight of 3048 kg (6,721 lb) and width of 1550 mm (60 in) the 303E is simple to load and position on a trailer with tie down points – getting you to the job site quicker.

Fuel Economy

Powered by the C1.3 engine, the 303E offers the performance and power required for your job with minimal fuel consumption.

Auxiliary Hydraulics

The 303E is ready to work. Hammer and two way lines with quick disconnect fittings are standard on every machine.

The quick disconnects are located close to the tool to reduce hose length and decrease owning and operating costs associated with hose replacement.

STANDARD EQUIPMENT

1-way and 2-way (combined function) auxiliary hydraulic lines
Lockable storage box
Cab mounted work light
Travel alarm (optional in Europe)
Dozer blade with float function

Optional Equipment

OPTIONAL EQUIPMENT

Mirrors for cab and canopy
Steel track
Cab, Top Guard ISO 10262:1998 (Level 1), ROPS ISO 12117-2:2008 and TOPS ISO 12117:1997
Mechanical quick coupler
Boom mounted light

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