303E CR Mini Hydraulic Excavator

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.

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Engine

Engine Model
Cat C1.3
Net Power
23.5HP
Gross Power
24.8HP
Rated Net Power - 2,400 rpm - ISO 9249/EEC 80/1269
23.5HP
Gross Power - ISO 14396
24.8HP
Note
Cat C1.3 engine meets U.S. EPA Tier 4 Final/EU Stage V emission standards.
Bore
3.1in
Displacement
77in³
Stroke
3.5in

Weights

Operating Weight - With Cab
7204lb
Note
Weight includes counterweight, rubber tracks, bucket, operator, full fuel and auxiliary lines.
Operating Weight - With Canopy
6721lb

Swing System

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

Blade

Width
60in
Height
13in
Dig Depth
19in
Lift Height
16in

Service Refill Capacities

Engine Oil
1.5gal (US)
Cooling System
1.2gal (US)
Hydraulic Tank
12.4gal (US)
Hydraulic System
17.2gal (US)
Fuel Tank
11.9gal (US)

Hydraulic System

Pump Flow at 2,400 rpm
23.1gal/min
Type
Load Sensing Hydraulics with Variable Displacement Piston Pump
Digging Force - Bucket
6385lbf
Digging Force - Stick - Standard
3732lbf
Operating Pressure - Equipment
3553psi
Operating Pressure - Swing
2625psi
Operating Pressure - Travel
3553psi
Digging Force - Stick - Long
3327lbf
Auxiliary Circuit - Primary (186 bar/2,697 psi)
15.9gal/min
Auxiliary Circuit - Secondary (174 bar/2,523 psi)
7.1gal/min

Undercarriage

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

Certification - Cab and Canopy

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

Dimensions (Approximate) - Long Stick

Maximum Reach - Ground Level
193in
Maximum Dig Height
167in
Boom Height in Shipping Position
63in
Boom In Reach
79in
Boom Swing Left
24in
Boom Swing Right
32in
Dig Depth
117in
Maximum Blade Depth
19in
Maximum Blade Height
16in
Maximum Dump Clearance
117in
Maximum Reach
198in
Overall Shipping Height
98in
Overall Shipping Length
198in
Overall Track Width
61in
Overall Undercarriage Length
82in
Swing Bearing Height
22in
Tail Swing
31in
Tail Swing with Extra Counterweight
35in
Track Belt/Shoe Width
12in
Vertical Wall
69in

Travel System

Travel Speed - Low
1.5mile/h
Maximum Traction Force - High Speed
3417lbf
Maximum Traction Force - Low Speed
6947lbf
Travel Speed - High
2.8mile/h
Gradeability - Continuous Operation
20°
Ground Pressure - Cab Long Stick
4.8psi
Ground Pressure - Cab Standard Stick
4.7psi
Ground Pressure - Canopy Long Stick
4.5psi
Ground Pressure - Canopy Standard Stick
4.4psi
Ground Pressure with Cab - Long Stick, Optional Counterweight
5.2psi
Ground Pressure with Cab - Standard Stick, Optional Counterweight
5.1psi
Ground Pressure with Canopy - Long Stick, Optional Counterweight
4.9psi
Ground Pressure with Canopy - Standard Stick, Optional Counterweight
4.8psi

Dimensions (Approximate) - Standard Stick

Maximum Dig Height
178in
Maximum Reach - Ground Level
189in
Boom Height in Shipping Position
63in
Boom In Reach
83in
Boom Swing Left
24in
Boom Swing Right
32in
Dig Depth
108in
Maximum Blade Depth
19in
Maximum Blade Height
16in
Maximum Dump Clearance
124in
Maximum Reach
195in
Overall Shipping Height
98in
Overall Shipping Length
176in
Overall Track Width
60in
Overall Undercarriage Length
82in
Swing Bearing Height
22in
Tail Swing
31in
Tail Swing with Extra Counterweight
35in
Track Belt/Shoe Width
12in
Vertical Wall
77in

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

Blade Down - Front
2580lb
Blade Down - Side
1191lb
Blade Up - Front
1433lb
Blade Up - Side
1080lb
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. Liftin

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

Blade Down - Front
1632lb
Blade Down - Side
750lb
Blade Up - Front
904lb
Blade Up - Side
662lb
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. Liftin

Operating Specifications

Machine Overhang
0in
Machine Overhang with Counterweight
5in
Stick Length - Long
61in
Stick Length - Standard
50in

Weights*

Note
*Weight includes counterweight, rubber tracks, bucket, operator, full fuel and auxiliary lines.
Operating Weight with Cab - Long Stick
7296lb
Operating Weight with Cab - Long Stick, Optional Counterweight
7883lb
Operating Weight with Cab - Standard Stick
7204lb
Operating Weight with Cab - Standard Stick, Optional Counterweight
7790lb
Operating Weight with Canopy - Long Stick
6813lb
Operating Weight with Canopy - Long Stick, Optional Counterweight
7400lb
Operating Weight with Canopy - Standard Stick
6721lb
Operating Weight with Canopy - Standard Stick, Optional Counterweight
7307lb

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 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.

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.

Customer Support You Can Count On

Your Cat dealer is ready to assist you with your purchase decision and everything after.

Financing packages are flexible to meet your needs.

Superior parts availability keeps you working.

Standard Equipment:

Optional Equipment:

    Optional Equipment
    • Beacon socket for canopy machines
    • Boom mounted light
    • Cab, Top Guard ISO 10262:1998 (Level 1), ROPS ISO 12117-2:2008 and TOPS ISO 12117:1997
    • High back suspension seat, fabric covered
    • Mechanical quick coupler
    • Mirrors for cab and canopy
    • Steel track