The Cat® 303 CR Mini Excavator delivers power and performance in a compact size to help you work in a wide range of applications.
Engine | |
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Net Power | 23.6 HP / 17.6 kW |
Engine Model | C1.1 Turbo |
Bore | 3 in / 77 mm |
Note (2) | Net power advertised is the power available at the flywheel when the engine is at rated speed and rated power when the engine is installed with the factory configured fan, air intake system, exhaust system, and alternator with a minimum alternator load. |
Gross Power - SAE J1995:2014 | 24.7 HP / 18.4 kW |
Net Power - 2,400 rpm - ISO 9249, 80/1269/EEC | 23.6 HP / 17.6 kW |
Emissions | Meets U.S. EPA Tier 4 Final and EU Stage V emission standards. |
Stroke | 3.2 in / 81 mm |
Note | Net power is tested per ISO 9249 and 80/1269/EEC. |
Displacement | 69 in³ / 1.1 l |
Weights | |
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Operating Weight | 7817 lb / 3545 kg |
Note (1) | *Minimum Weight is based on fixed rubber tracks, operator, full fuel tank, standard stick, blade, bucket and no extra counterweight. |
EU: CE Plate Weight with Canopy*** | 6791 lb / 3080 kg |
Minimum Operating Weight with Canopy* | 6670 lb / 3025 kg |
Minimum Operating Weight with Cab* | 6924 lb / 3140 kg |
Note (3) | ***CE Plate Weight is based on the most common EU configuration. Includes 75 kg (165 lb) operator and full fuel tank and excludes bucket. |
Maximum Operating Weight with Canopy** | 7552 lb / 3425 kg |
EU: CE Plate Weight with Cab*** | 7012 lb / 3180 kg |
Maximum Operating Weight with Cab** | 7817 lb / 3545 kg |
Note (2) | **Maximum Weight is based on steel tracks, operator, full fuel tank, long stick, blade, bucket and extra counterweight. |
Dimensions - Long Stick | |
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Dig Depth | 116.1 in / 2950 mm |
Boom Height - Shipping Position | 75.6 in / 1920 mm |
Tail Swing with Counterweight | 35 in / 890 mm |
Track Belt/Shoe Width | 11.8 in / 300 mm |
Maximum Reach | 206.3 in / 5240 mm |
Boom In Reach | 74.2 in / 1910 mm |
Boom Swing - Right | 34.3 in / 870 mm |
Tail Swing | 33.3 in / 845 mm |
Maximum Dump Clearance | 130.3 in / 3310 mm |
Ground Clearance | 12.2 in / 310 mm |
O/A Undercarriage Length | 81.5 in / 2070 mm |
O/A Shipping Height | 97.6 in / 2480 mm |
Track Width - Expanded | 61 in / 1550 mm |
Maximum Blade Depth | 21.1 in / 535 mm |
Maximum Reach - Ground Level | 201.2 in / 5110 mm |
Stick Length | 61.4 in / 1560 mm |
Overall Shipping Length* | 179.5 in / 4560 mm |
Maximum Dig Height | 183.1 in / 4650 mm |
Swing Bearing - Height | 22.4 in / 570 mm |
Note | *Overall Shipping Length depends on blade position during shipment. |
Tail Swing without Counterweight | 30.5 in / 775 mm |
Maximum Blade Height | 15.2 in / 385 mm |
Boom Swing - Left | 25.2 in / 640 mm |
Vertical Wall | 81.5 in / 2070 mm |
Blade | |
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Height | 13.8 in / 350 mm |
Width | 61 in / 1550 mm |
Dimensions - Standard Stick | |
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Maximum Blade Depth | 21.1 in / 535 mm |
Tail Swing without Counterweight | 30.5 in / 775 mm |
Maximum Dig Height | 177.6 in / 4510 mm |
O/A Undercarriage Length | 81.5 in / 2070 mm |
Boom Height - Shipping Position | 63 in / 1600 mm |
Vertical Wall | 71.7 in / 1820 mm |
Overall Shipping Length* | 177.6 in / 4510 mm |
Boom Swing - Left | 25.2 in / 640 mm |
O/A Shipping Height | 97.6 in / 2480 mm |
Track Shoe Width | 61 in / 1550 mm |
Boom Swing - Right | 34.3 in / 870 mm |
Tail Swing with Extra Counterweight | 35 in / 890 mm |
Swing Bearing - Height | 22.4 in / 570 mm |
Tail Swing | 33.3 in / 845 mm |
Maximum Blade Height | 15.2 in / 385 mm |
Dig Depth | 104.3 in / 2650 mm |
Maximum Dump Clearance | 124.8 in / 3170 mm |
Maximum Reach - Ground Level | 190.2 in / 4830 mm |
Maximum Reach | 196.1 in / 4980 mm |
Ground Clearance | 12.2 in / 310 mm |
Track Belt/Shoe Width | 11.8 in / 300 mm |
Boom In Reach | 68.9 in / 1750 mm |
Stick Length | 49.6 in / 1260 mm |
Note | *Overall Shipping Length depends on blade position during shipment. |
Swing System | |
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Boom Swing - Right | 50 ° |
Machine Swing Speed | 9 r/min |
Boom Swing - Left | 75 ° |
Sound | |
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Average Exterior Sound Pressure (ISO 6395:2008) | 94 dB(A) |
Operator Sound Pressure (ISO 6396:2008) | 78 dB(A) |
Note | European Union Directive “2000/14/EC” |
Hydraulic System | |
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Auxiliary Circuit - Primary - Flow | 17 gal/min / 65 l/min |
Auxiliary Circuit - Secondary - Pressure | 3553 psi / 245 bar |
Operating Pressure - Swing | 2553 psi / 176 bar |
Pump Flow at 2,400 rpm | 26 gal/min / 100 l/min |
Type | Load Sensing Hydraulics with Variable Displacement Piston Pump |
Digging Force - Stick - Standard | 3732 lbf / 16.6 kN |
Operating Pressure - Travel | 3553 psi / 245 bar |
Digging Force - Bucket | 6385 lbf / 28.4 kN |
Operating Pressure - Equipment | 3553 psi / 245 bar |
Auxiliary Circuit - Primary - Pressure | 3553 psi / 245 bar |
Auxiliary Circuit - Secondary - Flow | 7 gal/min / 25 l/min |
Digging Force - Stick - Long | 3327 lbf / 14.8 kN |
Note | * Flow and pressure are not combinable. Under load, as flow rises pressure goes down. |
Travel System | |
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Gradeability - Maximum | 30 degrees |
Ground Pressure - Maximum Weight | 4.7 psi / 32.3 kPa |
Ground Pressure - Minimum Weight | 4 psi / 27.6 kPa |
Travel Speed - High | 2.8 mile/h / 4.5 km/h |
Maximum Traction Force - Low Speed | 7059 lbf / 31.4 kN |
Travel Speed - Low | 1.6 mile/h / 2.6 km/h |
Maximum Traction Force - High Speed | 3305 lbf / 14.7 kN |
Service Refill Capacities | |
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Cooling System | 1.1 gal (US) / 4 l |
Hydraulic Tank | 4.8 gal (US) / 18 l |
Engine Oil | 1.1 gal (US) / 4 l |
Fuel Tank | 11.9 gal (US) / 45 l |
Hydraulic System | 9.2 gal (US) / 35 l |
Weight Increase from Minimum Configuration | |
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Counterweight | 221 lb / 100 kg |
Cab | 254 lb / 115 kg |
Steel Tracks | 276 lb / 125 kg |
Long Stick | 55 lb / 25 kg |
Extra Counterweight | 551 lb / 250 kg |
Certification - Cab and Canopy | |
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Roll Over Protective Structure (ROPS) | ISO 12117-2:2008 |
Top Guard | ISO 10262:1998 (Level I) |
Tip Over Protective Structure (TOPS) | ISO 12117:1997 |
Sustainability | |
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Recyclability | 95% |
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