303E CR

Heavy Equipment

303E CR

Net Power
23.5 HP / 17.5 kW
Operating Weight - With Cab
7204 lb / 3267 kg
Gross Power
24.8 HP / 18.5 kW

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.

Dimensions (Approximate) - Long Stick
Boom Height in Shipping Position 63 in / 1600 mm
Boom Swing Left 24 in / 610 mm
Boom Swing Right 32 in / 825 mm
Dig Depth 117 in / 2980 mm
Maximum Blade Depth 19 in / 470 mm
Maximum Blade Height 16 in / 400 mm
Maximum Dig Height 167 in / 4250 mm
Maximum Dump Clearance 117 in / 2970 mm
Maximum Reach 198 in / 5040 mm
Maximum Reach - Ground Level 193 in / 4910 mm
Overall Shipping Height 98 in / 2500 mm
Overall Shipping Length 198 in / 5030 mm
Overall Track Width 61 in / 1550 mm
Overall Undercarriage Length 82 in / 2080 mm
Swing Bearing Height 22 in / 565 mm
Tail Swing 31 in / 775 mm
Tail Swing with Extra Counterweight 35 in / 890 mm
Track Belt/Shoe Width 12 in / 300 mm
Vertical Wall 69 in / 1750 mm
Travel System
Gradeability (< 10 minutes Operation) 30°
Gradeability - Continuous Operation 20°
Ground Pressure - Cab Long Stick 4.8 psi / 33 kPa
Ground Pressure - Cab Standard Stick 4.7 psi / 32.6 kPa
Ground Pressure - Canopy Long Stick 4.5 psi / 30.8 kPa
Ground Pressure - Canopy Standard Stick 4.4 psi / 30.4 kPa
Ground Pressure with Cab - Long Stick, Optional Counterweight 5.2 psi / 35.6 kPa
Ground Pressure with Cab - Standard Stick, Optional Counterweight 5.1 psi / 35.2 kPa
Ground Pressure with Canopy - Long Stick, Optional Counterweight 4.9 psi / 33.5 kPa
Ground Pressure with Canopy - Standard Stick, Optional Counterweight 4.8 psi / 33 kPa
Maximum Traction Force - High Speed 3417 lbf / 15.2 kN
Maximum Traction Force - Low Speed 6947 lbf / 30.9 kN
Travel Speed - High 2.8 mile/h / 4.5 km/h
Travel Speed - Low 1.5 mile/h / 2.4 km/h
Dimensions (Approximate) - Standard Stick
Boom Height in Shipping Position 63 in / 1590 mm
Boom In Reach 83 in / 2110 mm
Boom Swing Left 24 in / 610 mm
Boom Swing Right 32 in / 825 mm
Dig Depth 108 in / 2750 mm
Maximum Blade Depth 19 in / 472 mm
Maximum Blade Height 16 in / 402 mm
Maximum Dig Height 178 in / 4530 mm
Maximum Dump Clearance 124 in / 3150 mm
Maximum Reach 195 in / 4950 mm
Maximum Reach - Ground Level 189 in / 4810 mm
Overall Shipping Height 98 in / 2500 mm
Overall Shipping Length 176 in / 4470 mm
Overall Track Width 60 in / 1550 mm
Overall Undercarriage Length 82 in / 2080 mm
Swing Bearing Height 22 in / 565 mm
Tail Swing 31 in / 775 mm
Tail Swing with Extra Counterweight 35 in / 890 mm
Track Belt/Shoe Width 12 in / 300 mm
Vertical Wall 77 in / 1960 mm
Hydraulic System
Auxiliary Circuit - Primary (186 bar/2,697 psi) 15.9 gal/min / 60 l/min
Auxiliary Circuit - Secondary (174 bar/2,523 psi) 7.1 gal/min / 27 l/min
Digging Force - Stick - Long 3327 lbf / 14.8 kN
Digging Force - Bucket 6385 lbf / 28.4 kN
Digging Force - Stick - Standard 3732 lbf / 16.6 kN
Operating Pressure - Equipment 3553 psi / 245 bar
Operating Pressure - Swing 2625 psi / 181 bar
Operating Pressure - Travel 3553 psi / 245 bar
Pump Flow at 2,400 rpm 23.1 gal/min / 88 l/min
Type Load Sensing Hydraulics with Variable Displacement Piston Pump
Lift Capacities at Ground Level* - Lift Point Radius: 3000 mm (9'8
Blade Down - Front 2580 lb / 1170 kg
Blade Down - Side 1191 lb / 540 kg
Blade Up - Front 1433 lb / 650 kg
Blade Up - Side 1080 lb / 490 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.
Lift Capacities at Ground Level* - Lift Point Radius: 4000 mm (13'1
Blade Down - Front 1632 lb / 740 kg
Blade Down - Side 750 lb / 340 kg
Blade Up - Front 904 lb / 410 kg
Blade Up - Side 662 lb / 300 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 0 in / 0 mm
Machine Overhang with Counterweight 5 in / 115 mm
Stick Length - Long 61 in / 1560 mm
Stick Length - Standard 50 in / 1260 mm
Weights*
Note *Weight includes counterweight, rubber tracks, bucket, operator, full fuel and auxiliary lines.
Operating Weight with Cab - Long Stick 7296 lb / 3309 kg
Operating Weight with Cab - Long Stick, Optional Counterweight 7883 lb / 3575 kg
Operating Weight with Cab - Standard Stick 7204 lb / 3267 kg
Operating Weight with Cab - Standard Stick, Optional Counterweight 7790 lb / 3533 kg
Operating Weight with Canopy - Long Stick 6813 lb / 3090 kg
Operating Weight with Canopy - Long Stick, Optional Counterweight 7400 lb / 3356 kg
Operating Weight with Canopy - Standard Stick 6721 lb / 3048 kg
Operating Weight with Canopy - Standard Stick, Optional Counterweight 7307 lb / 3314 kg
Engine
Engine Model Cat C1.3
Net Power 23.5 HP / 17.5 kW
Gross Power - ISO 14396 24.8 HP / 18.5 kW
Bore 3.1 in / 78 mm
Displacement 77 in³ / 1.3 l
Stroke 3.5 in / 88 mm
Gross Power 24.8 HP / 18.5 kW
Rated Net Power - 2,400 rpm - ISO 9249/EEC 80/1269 23.5 HP / 17.5 kW
Weights
Operating Weight - With Cab 7204 lb / 3267 kg
Operating Weight - With Canopy 6721 lb / 3048 kg
Note Weight includes counterweight, rubber tracks, bucket, operator, full fuel and auxiliary lines.
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 60 in / 1550 mm
Height 13 in / 335 mm
Dig Depth 19 in / 472 mm
Lift Height 16 in / 402 mm
Service Refill Capacities
Cooling System 1.2 gal (US) / 4.7 l
Engine Oil 1.5 gal (US) / 5.7 l
Fuel Tank 11.9 gal (US) / 45 l
Hydraulic System 17.2 gal (US) / 65 l
Hydraulic Tank 12.4 gal (US) / 47 l
Certification - Cab and Canopy
Roll Over Protective Structure (ROPS) ISO 12117-2:2008
Tip Over Protective Structure (TOPS) ISO 12117:1997
Top Guard ISO 10262:1998 (Level I)
Undercarriage
Number of Carrier Rollers 1
Number of Track Rollers 4
Track Roller Type Center Flange

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)

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
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