303.5 CR Mini Hydraulic Excavator
The Cat® 303.5 CR Mini Excavator delivers power and performance in a compact size to help you work in a wide range of applications.
Operating Weight | 4190 kg |
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EU: CE Plate Weight with Cab*** | 3630 kg |
EU: CE Plate Weight with Canopy*** | 3530 kg |
Maximum Operating Weight with Cab** | 4190 kg |
Maximum Operating Weight with Canopy** | 4050 kg |
Minimum Operating Weight with Cab* | 3620 kg |
Minimum Operating Weight with Canopy* | 3480 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 | 3110 mm |
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Boom Height - Shipping Position | 1750 mm |
Boom In Reach | 1860 mm |
Boom Swing - Left | 25.2 ° |
Boom Swing - Right | 870 mm |
Ground Clearance | 310 mm |
Maximum Blade Depth | 535 mm |
Maximum Blade Height | 385 mm |
Maximum Dig Height | 5020 mm |
Maximum Dump Clearance | 3600 mm |
Maximum Reach | 5510 mm |
Maximum Reach - Ground Level | 5380 mm |
Note | *Overall Shipping Length depends on blade position during shipment. |
O/A Shipping Height | 2480 mm |
O/A Track Width | 1780 mm |
O/A Undercarriage Length | 2220 mm |
Overall Shipping Length* | 4850 mm |
Stick Length | 1560 mm |
Swing Bearing - Height | 565 mm |
Tail Swing with Counterweight | 960 mm |
Tail Swing without Counterweight | 890 mm |
Track Belt/Shoe Width | 300 mm |
Vertical Wall | 2390 mm |
Net Power | 17.6 kW |
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Engine Model | C1.7 |
Bore | 84 mm |
Stroke | 100 mm |
Displacement | 1.7 l |
Emissions | Meets U.S. EPA Tier 4 Final and EU Stage V emission standards. |
Gross Power - 2,400 rpm - SAE J1995 | 18.4 kW |
Net Power @ 2,200 rpm - U.S. EPA Tier 4 Final/EU Stage V - ISO 9249/EEC 80/1269 | 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 | 1780 mm |
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Height | 350 mm |
Fuel Tank | 45 l |
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Cooling System | 7 l |
Engine Oil | 6 l |
Hydraulic System | 45 l |
Hydraulic Tank | 20 l |
Roll Over Protective Structure (ROPS) | ISO 12117-2:2008 |
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Tip Over Protective Structure (TOPS) | ISO 12117:1997 |
Top Guard | ISO 10262:1998 (Level I) |
Tail Swing with Extra Counterweight | 1005 mm |
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Tail Swing with Extra Counterweight | 1005 mm |
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Boom Height - Shipping Position | 1520 mm |
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Boom In Reach | 1760 mm |
Boom Swing - Left | 640 mm |
Boom Swing - Right | 870 mm |
Dig Depth | 2810 mm |
Ground Clearance | 310 mm |
Maximum Blade Depth | 535 mm |
Maximum Blade Height | 385 mm |
Maximum Dig Height | 4920 mm |
Maximum Dump Clearance | 3490 mm |
Maximum Reach | 5270 mm |
Maximum Reach - Ground Level | 5130 mm |
Note | *Overall Shipping Length depends on blade position during shipment. |
O/A Shipping Height | 2480 mm |
O/A Undercarriage Length | 2220 mm |
Overall Shipping Length* | 4800 mm |
Stick Length | 1260 mm |
Swing Bearing - Height | 565 mm |
Tail Swing with Counterweight | 960 mm |
Tail Swing with Extra Counterweight | 1005 mm |
Tail Swing without Counterweight | 890 mm |
Track Belt/Shoe Width | 300 mm |
Vertical Wall | 2250 mm |
Auxiliary Circuit - Primary - Flow | 70 l/min |
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Auxiliary Circuit - Primary - Pressure | 245 bar |
Auxiliary Circuit - Secondary - Flow | 25 l/min |
Auxiliary Circuit - Secondary - Pressure | 245 bar |
Digging Force - Bucket | 33 kN |
Digging Force - Stick - Long | 16.9 kN |
Digging Force - Stick - Standard | 18.9 kN |
Note | *Flow and pressure are not combinable. Under load, as flow rises pressure goes down. |
Operating Pressure - Equipment | 245 bar |
Operating Pressure - Swing | 181 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) |
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Note | European Union Directive ‚ "2000/14/EC" |
Operator Sound Pressure (ISO 6396:2008) | 78 dB(A) |
Machine Swing Speed | 9 r/min |
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Boom Swing - Left | 75 ° |
Boom Swing - Right | 50 ° |
Gradeability - Maximum | 30 degrees |
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Ground Pressure - Maximum Weight | 35.7 kPa |
Ground Pressure - Minimum Weight | 29.6 kPa |
Maximum Traction Force - High Speed | 16.9 kN |
Maximum Traction Force - Low Speed | 31 kN |
Travel Speed - High | 4.5 km/h |
Travel Speed - Low | 2.6 km/h |
Angle Blade | 160 kg |
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Cab | 140 kg |
Counterweight | 100 kg |
Long Stick | 20 kg |
Steel Tracks | 130 kg |
Extra Counterweight | 250 kg |
Recyclability | 95% |
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