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.
| Net Power | 23.5 HP 17.5 kW |
| Engine Model | Cat C1.3 Cat C1.3 |
| Gross Power | 24.8 HP 18.5 kW |
| Gross Power - ISO 14396 | 24.8 HP 18.5 kW |
| Note | Cat C1.3 engine meets U.S. EPA Tier 4 Final/EU Stage V emission standards. Cat C1.3 engine meets U.S. EPA Tier 4 Final/EU Stage V emission standards. |
| Stroke | 3.5 in 88 mm |
| Bore | 3.1 in 78 mm |
| Displacement | 77 in³ 1.3 l |
| Rated Net Power - 2,400 rpm - ISO 9249/EEC 80/1269 | 23.5 HP 17.5 kW |
| 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. Weight includes counterweight, rubber tracks, bucket, operator, full fuel and auxiliary lines. |
| 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 |
| Maximum Traction Force - High Speed | 3417 lbf 15.2 kN |
| Ground Pressure - Cab Standard Stick | 4.7 psi 32.6 kPa |
| Ground Pressure - Cab Long Stick | 4.8 psi 33 kPa |
| Ground Pressure with Canopy - Long Stick, Optional Counterweight | 4.9 psi 33.5 kPa |
| Ground Pressure - Canopy Standard Stick | 4.4 psi 30.4 kPa |
| Gradeability - Continuous Operation | 20° 20° |
| Ground Pressure - Canopy Long Stick | 4.5 psi 30.8 kPa |
| Ground Pressure with Canopy - Standard Stick, Optional Counterweight | 4.8 psi 33 kPa |
| Ground Pressure with Cab - Standard Stick, Optional Counterweight | 5.1 psi 35.2 kPa |
| Gradeability (< 10 minutes Operation) | 30° 30° |
| Ground Pressure with Cab - Long Stick, Optional Counterweight | 5.2 psi 35.6 kPa |
| Operating Pressure - Swing | 2625 psi 181 bar |
| Digging Force - Bucket | 6385 lbf 28.4 kN |
| Pump Flow at 2,400 rpm | 23.1 gal/min 88 l/min |
| Operating Pressure - Travel | 3553 psi 245 bar |
| Digging Force - Stick - Standard | 3732 lbf 16.6 kN |
| Operating Pressure - Equipment | 3553 psi 245 bar |
| Type | Load Sensing Hydraulics with Variable Displacement Piston Pump Load Sensing Hydraulics with Variable Displacement Piston Pump |
| Auxiliary Circuit - Secondary (174 bar/2,523 psi) | 7.1 gal/min 27 l/min |
| Digging Force - Stick - Long | 3327 lbf 14.8 kN |
| Auxiliary Circuit - Primary (186 bar/2,697 psi) | 15.9 gal/min 60 l/min |
| Machine Swing Speed | 9 r/min 9 r/min |
| Boom Swing - Left* | 80° 80° |
| Boom Swing - Right | 50° 50° |
| Note | *Automatic swing brake, spring applied, hydraulic release. *Automatic swing brake, spring applied, hydraulic release. |
| Width | 60 in 1550 mm |
| Height | 13 in 335 mm |
| Dig Depth | 19 in 472 mm |
| Lift Height | 16 in 402 mm |
| Engine Oil | 1.5 gal (US) 5.7 l |
| Fuel Tank | 11.9 gal (US) 45 l |
| Hydraulic Tank | 12.4 gal (US) 47 l |
| Cooling System | 1.2 gal (US) 4.7 l |
| Hydraulic System | 17.2 gal (US) 65 l |
| Number of Carrier Rollers | 1 1 |
| Track Roller Type | Center Flange Center Flange |
| Number of Track Rollers | 4 4 |
| Top Guard | ISO 10262:1998 (Level I) ISO 10262:1998 (Level I) |
| Roll Over Protective Structure (ROPS) | ISO 12117-2:2008 ISO 12117-2:2008 |
| Tip Over Protective Structure (TOPS) | ISO 12117:1997 ISO 12117:1997 |
| Dig Depth | 117 in 2980 mm |
| Maximum Reach | 198 in 5040 mm |
| Track Belt/Shoe Width | 12 in 300 mm |
| Overall Undercarriage Length | 82 in 2080 mm |
| Overall Shipping Height | 98 in 2500 mm |
| Maximum Reach - Ground Level | 193 in 4910 mm |
| Tail Swing | 31 in 775 mm |
| Vertical Wall | 69 in 1750 mm |
| Boom In Reach | 79 in 2000 mm |
| Maximum Dig Height | 167 in 4250 mm |
| Boom Swing Right | 32 in 825 mm |
| Maximum Blade Depth | 19 in 470 mm |
| Tail Swing with Extra Counterweight | 35 in 890 mm |
| Maximum Blade Height | 16 in 400 mm |
| Overall Track Width | 61 in 1550 mm |
| Swing Bearing Height | 22 in 565 mm |
| Boom Height in Shipping Position | 63 in 1600 mm |
| Boom Swing Left | 24 in 610 mm |
| Maximum Dump Clearance | 117 in 2970 mm |
| Overall Shipping Length | 198 in 5030 mm |
| Blade Down - Side | 1191 lb 540 kg |
| Blade Down - Front | 2580 lb 1170 kg |
| Blade Up - Side | 1080 lb 490 kg |
| Blade Up - Front | 1433 lb 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. *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. |
| Machine Overhang with Counterweight | 5 in 115 mm |
| Machine Overhang | 0 in 0 mm |
| Stick Length - Long | 61 in 1560 mm |
| Stick Length - Standard | 50 in 1260 mm |
| Blade Up - Side | 662 lb 300 kg |
| Blade Down - Front | 1632 lb 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. *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 | 750 lb 340 kg |
| Blade Up - Front | 904 lb 410 kg |
| Tail Swing | 31 in 775 mm |
| Maximum Dump Clearance | 124 in 3150 mm |
| Track Belt/Shoe Width | 12 in 300 mm |
| Overall Track Width | 60 in 1550 mm |
| Maximum Dig Height | 178 in 4530 mm |
| Dig Depth | 108 in 2750 mm |
| Overall Undercarriage Length | 82 in 2080 mm |
| Boom Swing Left | 24 in 610 mm |
| Boom Swing Right | 32 in 825 mm |
| Tail Swing with Extra Counterweight | 35 in 890 mm |
| Maximum Blade Height | 16 in 402 mm |
| Maximum Blade Depth | 19 in 472 mm |
| Boom Height in Shipping Position | 63 in 1590 mm |
| Swing Bearing Height | 22 in 565 mm |
| Maximum Reach | 195 in 4950 mm |
| Overall Shipping Height | 98 in 2500 mm |
| Vertical Wall | 77 in 1960 mm |
| Overall Shipping Length | 176 in 4470 mm |
| Maximum Reach - Ground Level | 189 in 4810 mm |
| Boom In Reach | 83 in 2110 mm |
| Operating Weight with Canopy - Long Stick, Optional Counterweight | 7400 lb 3356 kg |
| Operating Weight with Canopy - Long Stick | 6813 lb 3090 kg |
| Operating Weight with Cab - Standard Stick | 7204 lb 3267 kg |
| Operating Weight with Canopy - Standard Stick | 6721 lb 3048 kg |
| Operating Weight with Cab - Standard Stick, Optional Counterweight | 7790 lb 3533 kg |
| Operating Weight with Cab - Long Stick | 7296 lb 3309 kg |
| 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. |
| Operating Weight with Canopy - Standard Stick, Optional Counterweight | 7307 lb 3314 kg |
| Operating Weight with Cab - Long Stick, Optional Counterweight | 7883 lb 3575 kg |
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Efficient equipment management starts with the Cat App. Track the location and health of your equipment, order service and parts, and activate telematics devices directly from your mobile device. Staying on top of your fleet 24/7 has never been easier.
Cat® Inspect allows you to access your equipment data on your mobile device. This easy-to-use app lets you capture inspection data and integrates with your other Cat data systems, so you can keep a close eye on your fleet. More than one million inspections are completed each year, providing convenience and accountability to equipment owners.
Cat® Product Link™ wirelessly connects you to your equipment giving you valuable insight into how your machine or fleet is performing. Information such as location, hours, fuel usage, productivity, idle time, and diagnostic codes are made available through online web applications so that you can make timely, fact-based decisions to maximize efficiency, improve productivity, and lower the cost of owning and operating your fleet. Available with satellite or cellular connectivity.
My.Cat.Com is the web-based hub for digital equipment management, giving you an easy way to take in complex information. Monitor cost, utilization, reliability, age information and other critical data needed to run a business more efficiently and effectively. Access your equipment information and connect with your Cat dealer – all in one place.
