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
Gross Power - ISO 14396 24.8 HP 18.5 kW Less
Bore 3.1 in 78.0 mm Less
Displacement 77.0 in³ 1.3 l Less
Stroke 3.5 in 88.0 mm Less
Rated Net Power - 2,400 rpm - ISO 9249/EEC 80/1269 23.5 HP 17.5 kW Less

Weights

Operating Weight - With Cab 7204.0 lb 3267.0 kg Less
Operating Weight - With Canopy 6721.0 lb 3048.0 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

Swing System

Machine Swing Speed 9.0 r/min 9.0 r/min 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 (US) 4.7 l Less
Engine Oil 1.5 gal (US) 5.7 l Less
Fuel Tank 11.9 gal (US) 45.0 l Less
Hydraulic System 17.2 gal (US) 65.0 l Less
Hydraulic Tank 12.4 gal (US) 47.0 l Less

Dimensions (Approximate) - Long Stick

Boom Height in Shipping Position 63.0 in 1600.0 mm Less
Boom Swing Left 24.0 in 610.0 mm Less
Boom Swing Right 32.0 in 825.0 mm Less
Dig Depth 117.0 in 2980.0 mm Less
Maximum Blade Depth 19.0 in 470.0 mm Less
Maximum Blade Height 16.0 in 400.0 mm Less
Maximum Dig Height 167.0 in 4250.0 mm Less
Maximum Dump Clearance 117.0 in 2970.0 mm Less
Maximum Reach 198.0 in 5040.0 mm Less
Maximum Reach - Ground Level 193.0 in 4910.0 mm Less
Overall Shipping Height 98.0 in 2500.0 mm Less
Overall Shipping Length 198.0 in 5030.0 mm Less
Overall Track Width 61.0 in 1550.0 mm Less
Overall Undercarriage Length 82.0 in 2080.0 mm Less
Swing Bearing Height 22.0 in 565.0 mm Less
Tail Swing 31.0 in 775.0 mm Less
Tail Swing with Extra Counterweight 35.0 in 890.0 mm Less
Track Belt/Shoe Width 12.0 in 300.0 mm Less
Vertical Wall 69.0 in 1750.0 mm Less

Travel System

Gradeability (< 10 minutes Operation) 30° 30° Less
Gradeability - Continuous Operation 20° 20° Less
Ground Pressure - Cab Long Stick 4.8 psi 33.0 kPa Less
Ground Pressure - Cab Standard Stick 4.7 psi 32.6 kPa Less
Ground Pressure - Canopy Long Stick 4.5 psi 30.8 kPa Less
Ground Pressure - Canopy Standard Stick 4.4 psi 30.4 kPa Less
Ground Pressure with Cab - Long Stick, Optional Counterweight 5.2 psi 35.6 kPa Less
Ground Pressure with Cab - Standard Stick, Optional Counterweight 5.1 psi 35.2 kPa Less
Ground Pressure with Canopy - Long Stick, Optional Counterweight 4.9 psi 33.5 kPa Less
Ground Pressure with Canopy - Standard Stick, Optional Counterweight 4.8 psi 33.0 kPa Less
Maximum Traction Force - High Speed 3417.0 15.2 kN Less
Maximum Traction Force - Low Speed 6947.0 30.9 kN Less
Travel Speed - High 2.8 mile/h 4.5 km/h Less
Travel Speed - Low 1.5 mile/h 2.4 km/h Less

Dimensions (Approximate) - Standard Stick

Boom Height in Shipping Position 63.0 in 1590.0 mm Less
Boom In Reach 83.0 in 2110.0 mm Less
Boom Swing Left 24.0 in 610.0 mm Less
Boom Swing Right 32.0 in 825.0 mm Less
Dig Depth 108.0 in 2750.0 mm Less
Maximum Blade Depth 19.0 in 472.0 mm Less
Maximum Blade Height 16.0 in 402.0 mm Less
Maximum Dig Height 178.0 in 4530.0 mm Less
Maximum Dump Clearance 124.0 in 3150.0 mm Less
Maximum Reach 195.0 in 4950.0 mm Less
Maximum Reach - Ground Level 189.0 in 4810.0 mm Less
Overall Shipping Height 98.0 in 2500.0 mm Less
Overall Shipping Length 176.0 in 4470.0 mm Less
Overall Track Width 60.0 in 1550.0 mm Less
Overall Undercarriage Length 82.0 in 2080.0 mm Less
Swing Bearing Height 22.0 in 565.0 mm Less
Tail Swing 31.0 in 775.0 mm Less
Tail Swing with Extra Counterweight 35.0 in 890.0 mm Less
Track Belt/Shoe Width 12.0 in 300.0 mm Less
Vertical Wall 77.0 in 1960.0 mm Less

Hydraulic System

Auxiliary Circuit - Primary (186 bar/2,697 psi) 15.9 gal/min 60.0 l/min Less
Auxiliary Circuit - Secondary (174 bar/2,523 psi) 7.1 gal/min 27.0 l/min Less
Digging Force - Stick - Long 3327.0 14.8 kN Less
Digging Force - Bucket 6385.0 28.4 kN Less
Digging Force - Stick - Standard 3732.0 16.6 kN Less
Operating Pressure - Equipment 3553.0 psi 245.0 bar Less
Operating Pressure - Swing 2625.0 psi 181.0 bar Less
Operating Pressure - Travel 3553.0 psi 245.0 bar Less
Pump Flow at 2,400 rpm 23.1 gal/min 88.0 l/min Less
Type Load Sensing Hydraulics with Variable Displacement Piston Pump Load Sensing Hydraulics with Variable Displacement Piston Pump Less

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

Blade Down - Front 2580.0 lb 1170.0 kg Less
Blade Down - Side 1191.0 lb 540.0 kg Less
Blade Up - Front 1433.0 lb 650.0 kg Less
Blade Up - Side 1080.0 lb 490.0 kg Less
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. *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. Less

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

Blade Down - Front 1632.0 lb 740.0 kg Less
Blade Down - Side 750.0 lb 340.0 kg Less
Blade Up - Front 904.0 lb 410.0 kg Less
Blade Up - Side 662.0 lb 300.0 kg Less
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. *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. Less

Operating Specifications

Machine Overhang 0.0 in 0.0 mm Less
Machine Overhang with Counterweight 5.0 in 115.0 mm Less
Stick Length - Long 61.0 in 1560.0 mm Less
Stick Length - Standard 50.0 in 1260.0 mm Less

Weights*

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
Operating Weight with Cab - Long Stick 7296.0 lb 3309.0 kg Less
Operating Weight with Cab - Long Stick, Optional Counterweight 7883.0 lb 3575.0 kg Less
Operating Weight with Cab - Standard Stick 7204.0 lb 3267.0 kg Less
Operating Weight with Cab - Standard Stick, Optional Counterweight 7790.0 lb 3533.0 kg Less
Operating Weight with Canopy - Long Stick 6813.0 lb 3090.0 kg Less
Operating Weight with Canopy - Long Stick, Optional Counterweight 7400.0 lb 3356.0 kg Less
Operating Weight with Canopy - Standard Stick 6721.0 lb 3048.0 kg Less
Operating Weight with Canopy - Standard Stick, Optional Counterweight 7307.0 lb 3314.0 kg Less

Certification - Cab and Canopy

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

Undercarriage

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

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 10262:1998 (Level 1), ROPS ISO 12117-2:2008 and TOPS ISO 12117:1997
  • 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
  • Product Link™
  • Rubber track
  • Retractable seatbelt
  • Standard stick
  • Suspension seat, vinyl covered
  • “Thumb ready” sticks
  • Travel alarm (optional in Europe)

303E CR 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

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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