303E CR

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Overview

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

Units:
Engine Model Cat C1.3 Cat C1.3 Less
Net Power 23.5 hp 17.5 kW Less
Gross Power 24.8 hp 18.5 kW Less
Rated Net Power @ 2,400 rpm – ISO 9249/EEC 80/1269 23.5 hp 17.5 kW Less
Gross Power – ISO 14396 24.8 hp 18.5 kW Less
Bore 3.1 in 78.0 mm Less
Stroke 3.5 in 88.0 mm Less
Displacement 77.0 in3 1.26 L Less

Weights

Operating Weight with Cab 7782.0 lb 3530.0 kg Less
Operating Weight with Canopy 7297.0 lb 3310.0 kg Less
Note Weight includes counterweight, rubber tracks, bucket, operator, full fuel and auxiliary lines. Weight includes counterweight, rubber tracks, bucket, operator, full fuel and auxiliary lines. Less

Travel System

Ground Pressure 4.6 psi 32.2 kPa Less
Travel Speed – High 2.8 mph 4.5 km/h Less
Travel Speed – Low 1.5 mph 2.4 km/h Less
Max Traction Force – High Speed 3417.0 lb 15.2 kN Less
Max Traction Force – Low Speed 6946.0 lb 30.9 kN Less
Gradeability (maximum) 30° 30° Less

Swing System

Machine Swing Speed 9.0 rpm 9.0 rpm Less
Boom Swing – Left* 80° 80° Less
Boom Swing – Right 50° 50° Less
Note *Automatic swing brake, spring applied, hydraulic release. *Automatic swing brake, spring applied, hydraulic release. Less

Blade

Width 60.0 in 1550.0 mm Less
Height 13.0 in 335.0 mm Less
Dig Depth 19.0 in 472.0 mm Less
Lift Height 16.0 in 402.0 mm Less

Service Refill Capacities

Cooling System 1.2 gal 4.7 L Less
Engine Oil 1.5 gal 5.7 L Less
Fuel Tank 11.8 gal 45.0 L Less
Hydraulic Tank 12.4 gal 47.0 L Less
Hydraulic System 17.2 gal 65.0 L Less

Hydraulic System

Type Load Sensing Hydraulics with Variable Displacement Piston Pump Load Sensing Hydraulics with Variable Displacement Piston Pump Less
Pump Flow at 2,400 rpm 23.1 gal/min 87.6 L/min Less
Operating Pressure – Equipment 3553.0 psi 245.0 bar Less
Operating Pressure – Travel 3553.0 psi 245.0 bar Less
Operating Pressure – Swing 2625.0 psi 181.0 bar Less
Auxiliary Circuit – Primary (186 bar/2,734 psi) 15.9 gal/min 60.0 L/min Less
Auxiliary Circuit – Secondary (174 bar/2,524 psi) 7.1 gal/min 27.0 L/min Less
Digging Force – Stick (standard) 3731.0 lb 16.6 kN Less
Digging Force – Bucket 6384.0 lb 28.4 kN Less

Dimensions (Approximate)

Dig Depth 108.0 in 2750.0 mm Less
Vertical Wall 77.0 in 1960.0 mm Less
Maximum Reach at Ground Level 189.0 in 4810.0 mm Less
Maximum Reach 195.0 in 4950.0 mm Less
Maximum Dig Height 178.0 in 4530.0 mm Less
Maximum Dump Clearance 124.0 in 3150.0 mm Less
Boom In Reach 83.0 in 2110.0 mm Less
Tail Swing 35.0 in 890.0 mm Less
Maximum Blade Height 16.0 in 402.0 mm Less
Maximum Blade Depth 19.0 in 472.0 mm Less
Boom Height in Shipping Position 63.0 in 1590.0 mm Less
O/A Shipping Height 98.0 in 2500.0 mm Less
Swing Bearing Height 22.0 in 565.0 mm Less
O/A Undercarriage Length 87.0 in 2210.0 mm Less
O/A Shipping Length 176.0 in 4470.0 mm Less
Boom Swing Right 32.0 in 825.0 mm Less
Boom Swing Left 24.0 in 610.0 mm Less
Track Belt/Shoe Width 12.0 in 300.0 mm Less
O/A Track Width 60.0 in 1550.0 mm Less

Undercarriage

Number of Carrier Rollers 3 3 Less
Number of Track Rollers 3 3 Less
Track Roller Type Double Flange Double Flange Less

Certification – Cab and Canopy

Roll Over Protective Structure (ROPS) ISO 12117-2 ISO 12117-2 Less
Tip Over Protective Structure (TOPS) ISO 12117 ISO 12117 Less
Top Guard ISO 10262 (Level I) ISO 10262 (Level I) Less

Solid Performance in a Small Package

Compact and efficient design provides superior power.


Productivity and Durability

Designed for reliability.


Superior Operating Experience

Safety and comfort all day.


Simple Service and Maintenance Access

Low cost of ownership.


Unmatched Support and Solutions

Equipment, service and attachments to meet your needs.


303E CR Standard Equipment

1-way and 2-way (combined function) auxiliary hydraulic lines

Adjustable armrests

Alternator

Automatic swing park brake

Automatic two speed travel

Auxiliary line quick disconnects

Boom cylinder guard

Cab mounted work light

Canopy with Top Guard ISO 10262 (Level 1), ROPS ISO 12117-2 and TOPS ISO 12117

Coat hook

Cup holder

Control pattern changer

Dozer blade with float function

Foot travel pedals

Gauges or indicators for fuel level engine coolant temperature, hour meter, engine oil pressure, air cleaner, alternator and glow plugs, service interval

Horn

Hydraulic oil cooler

Lifting eye on bucket linkage (standard equipment for all regions except Europe)

Lockable storage box

Low maintenance linkage pin joints

Maintenance free battery

Rubber track

Retractable seatbelt

Standard stick

Suspension seat, vinyl covered

“Thumb ready” sticks

Travel alarm (optional in Europe)

303E CR Optional Equipment

Beacon socket for canopy machines

Boom mounted light

Cab, Top Guard ISO 10262 (Level 1), ROPS ISO 12117-2 and TOPS ISO 12117

High back suspension seat, fabric covered

Mechanical quick coupler

Mirrors for cab and canopy

Steel track

Mini Excavator Attachment Options

Cat Mini Excavator attachment options let you get more out of your machines. Browse our attachment offerings to find the ones that are right for your business.

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Swear by Equipment Management

Fuel costs. Labor costs. Maintenance costs. They can all tax your patience. But with timely, accurate data, you can better manage your equipment to keep operating expenses in line. Cat® EMSolutions offers everything you need to control costs, help your guys work better, reduce risks and get more done every day.

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Mini Hydraulic Excavator Parts Reference Guide

The mini hydraulic excavator parts reference guide provides you with a quick reference to all the repair, wear and maintenance parts you need for your excavator.

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