303 CR Mini Hydraulic Excavator
The Cat® 303 CR Mini Excavator delivers power and performance in a compact size to help you work in a wide range of applications.
| Operating Weight | 3545 kg |
|---|---|
| EU: CE Plate Weight with Cab*** | 3180 kg |
| EU: CE Plate Weight with Canopy*** | 3080 kg |
| Maximum Operating Weight with Cab** | 3545 kg |
| Maximum Operating Weight with Canopy** | 3425 kg |
| Minimum Operating Weight with Cab* | 3140 kg |
| Minimum Operating Weight with Canopy* | 3025 kg |
| Note (1) | *Minimum Weight is based on fixed rubber tracks, operator, full fuel tank, standard stick, blade, bucket and no extra counterweight. |
| Note (2) | **Maximum Weight is based on steel tracks, operator, full fuel tank, long stick, blade, bucket and extra counterweight. |
| 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. |
| Dig Depth | 2950 mm |
|---|---|
| Boom Height - Shipping Position | 1920 mm |
| Boom In Reach | 1910 mm |
| Boom Swing - Left | 640 mm |
| Boom Swing - Right | 870 mm |
| Ground Clearance | 310 mm |
| Maximum Blade Depth | 535 mm |
| Maximum Blade Height | 385 mm |
| Maximum Dig Height | 4650 mm |
| Maximum Dump Clearance | 3310 mm |
| Maximum Reach | 5240 mm |
| Maximum Reach - Ground Level | 5110 mm |
| Note | *Overall Shipping Length depends on blade position during shipment. |
| O/A Shipping Height | 2480 mm |
| O/A Undercarriage Length | 2070 mm |
| Overall Shipping Length* | 4560 mm |
| Stick Length | 1560 mm |
| Swing Bearing - Height | 570 mm |
| Tail Swing | 845 mm |
| Tail Swing with Counterweight | 890 mm |
| Tail Swing without Counterweight | 775 mm |
| Track Belt/Shoe Width | 300 mm |
| Track Width - Expanded | 1550 mm |
| Vertical Wall | 2070 mm |
| Net Power | 17.6 kW |
|---|---|
| Engine Model | C1.1 Turbo |
| Bore | 77 mm |
| Stroke | 81 mm |
| Displacement | 1.1 l |
| Emissions | Meets U.S. EPA Tier 4 Final and EU Stage V emission standards. |
| Gross Power - SAE J1995:2014 | 18.4 kW |
| Net Power - 2,400 rpm - ISO 9249, 80/1269/EEC | 17.6 kW |
| Note | Net power is tested per ISO 9249 and 80/1269/EEC. |
| 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. |
| Width | 1550 mm |
|---|---|
| Height | 350 mm |
| Fuel Tank | 45 l |
|---|---|
| Cooling System | 4 l |
| Engine Oil | 4 l |
| Hydraulic System | 35 l |
| Hydraulic Tank | 18 l |
| Roll Over Protective Structure (ROPS) | ISO 12117-2:2008 |
|---|---|
| Tip Over Protective Structure (TOPS) | ISO 12117:1997 |
| Top Guard | ISO 10262:1998 (Level I) |
| Boom Height - Shipping Position | 1600 mm |
|---|---|
| Boom In Reach | 1750 mm |
| Boom Swing - Left | 640 mm |
| Boom Swing - Right | 870 mm |
| Dig Depth | 2650 mm |
| Ground Clearance | 310 mm |
| Maximum Blade Depth | 535 mm |
| Maximum Blade Height | 385 mm |
| Maximum Dig Height | 4510 mm |
| Maximum Dump Clearance | 3170 mm |
| Maximum Reach | 4980 mm |
| Maximum Reach - Ground Level | 4830 mm |
| Note | *Overall Shipping Length depends on blade position during shipment. |
| O/A Shipping Height | 2480 mm |
| O/A Undercarriage Length | 2070 mm |
| Overall Shipping Length* | 4510 mm |
| Stick Length | 1260 mm |
| Swing Bearing - Height | 570 mm |
| Tail Swing | 845 mm |
| Tail Swing with Extra Counterweight | 890 mm |
| Tail Swing without Counterweight | 775 mm |
| Track Belt/Shoe Width | 300 mm |
| Track Shoe Width | 1550 mm |
| Vertical Wall | 1820 mm |
| Auxiliary Circuit - Primary - Flow | 65 l/min |
|---|---|
| Auxiliary Circuit - Primary - Pressure | 245 bar |
| Auxiliary Circuit - Secondary - Flow | 25 l/min |
| Auxiliary Circuit - Secondary - Pressure | 245 bar |
| Digging Force - Bucket | 28.4 kN |
| Digging Force - Stick - Long | 14.8 kN |
| Digging Force - Stick - Standard | 16.6 kN |
| Note | * Flow and pressure are not combinable. Under load, as flow rises pressure goes down. |
| Operating Pressure - Equipment | 245 bar |
| Operating Pressure - Swing | 176 bar |
| Operating Pressure - Travel | 245 bar |
| Pump Flow at 2,400 rpm | 100 l/min |
| Type | Load Sensing Hydraulics with Variable Displacement Piston Pump |
| Average Exterior Sound Pressure (ISO 6395:2008) | 94 dB(A) |
|---|---|
| Note | European Union Directive “2000/14/EC” |
| Operator Sound Pressure (ISO 6396:2008) | 78 dB(A) |
| Machine Swing Speed | 9 r/min |
|---|---|
| Boom Swing - Left | 75 ° |
| Boom Swing - Right | 50 ° |
| Gradeability - Maximum | 30 degrees |
|---|---|
| Ground Pressure - Maximum Weight | 32.3 kPa |
| Ground Pressure - Minimum Weight | 27.6 kPa |
| Maximum Traction Force - High Speed | 14.7 kN |
| Maximum Traction Force - Low Speed | 31.4 kN |
| Travel Speed - High | 4.5 km/h |
| Travel Speed - Low | 2.6 km/h |
| Cab | 115 kg |
|---|---|
| Counterweight | 100 kg |
| Long Stick | 25 kg |
| Steel Tracks | 125 kg |
| Extra Counterweight | 250 kg |
| Recyclability | 95% |
|---|
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