303E CR Mini Hydraulic Excavator

Mini Excavators

Specification Summary
Net Power 23.5 HP
Engine Model Cat C1.3
Note Cat C1.3 engine meets U.S. EPA Tier 4 Final/EU Stage V emission standards.
Operating Weight - With Cab 3267 kg
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product-303E CR Mini Hydraulic Excavator

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.

Engine

Net Power	23.5 HP
Engine Model	Cat C1.3
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
Gross Power	24.8 HP
Rated Net Power - 2,400 rpm - ISO 9249/EEC 80/1269	23.5 HP

Weights

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

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

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
Type	Load Sensing Hydraulics with Variable Displacement Piston Pump
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

Swing System

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

Blade

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

Service Refill Capacities

Engine Oil	5.7 l
Fuel Tank	45 l
Hydraulic Tank	47 l
Cooling System	4.7 l
Hydraulic System	65 l

Undercarriage

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

Certification - Cab and Canopy

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

Dimensions (Approximate) - Long Stick

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")

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.

Operating Specifications

Machine Overhang with Counterweight	115 mm
Machine Overhang	0 mm
Stick Length - Long	1560 mm
Stick Length - Standard	1260 mm

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

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

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*

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

Solid Performance in a Small Package

Compact and efficient design provides superior power.

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 3200 kg (7,055 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.

Productivity and Durability

Designed for reliability.

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.

Hose routings provide superior protection and cylinder guards decrease opportunity for machine damage.

Thumb Ready Stick

The machine is configured with brackets and relief valves for simple and cost effective mounting of a hydraulic thumb.

Dozer Blade

The durable blade and dozer float function provide the required design and capability to increase overall efficiency. Ground leveling and finishing applications are fast and easy with a single lever controlling all blade operation – up, down and float.

Superior Operating Experience

Safety and comfort all day.

Spacious and Ergonomic Working Environment

Your safety and comfort is incorporated into the design of every Cat machine.

The adjustable suspension seat, retractable seat belt and adjustable wrist rests allow you to customize the operating station to meet your needs. Ergonomically designed joystick control and travel levers reduce fatigue and improve productivity.

An easy to use pattern control selector and informative gauge panel ensure optimal operation.

Cat Interlock System aids in job site safety. When the hydraulic lockout lever is in the up position no operational function is possible – including travel.

Travel alarm as standard safety offering. An audible alarm alerts job site operators of machine travel (optional in Europe).

ROPS/TOPS/TOP GUARD certification ensures the machine is prepared to protect you.

*Cab unit includes sliding door and openable front window/removable lower window.

Simple Service and Maintenance Access

Low cost of ownership.

Easy Maintenance Access and Extended Service Intervals

Ease of access to daily maintenance check points ensures your machine is in prime condition to complete any task.

Engine and hydraulic hoods are simple to open and offer outstanding visibility and convenience to check points.

500 hour engine oil and filter change period reduces operating costs and machine downtime.

Easy access to the engine oil check and fill, vertically mounted engine oil filter, starter motor and alternator, as well as the radiator and oil cooler all result in simplified cleaning and reduced maintenance times.

Unmatched Support and Solutions

Equipment, service and attachments to meet your needs.

Customized Solutions for Any Application

A range of tools is available to take advantage of the machine’s versatility. All tools are matched to the machine to optimize performance and deliver excellent value through high productivity and long life.