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The Cat® 303 CR Mini Excavator delivers power and performance in a compact size to help you work in a wide range of applications.
Choose either a canopy or a sealed and pressurized cab which can be equipped with air conditioning, adjustable wrist rests, and a…
Controls are easy to use and the intuitive Next Generation LCD monitor provides easy to read machine information. An advanced touc…
Moving around the job site is even easier with the Cat Stick Steer option. Easily switch from traditional travel controls with lev…
Strong lift and dig performance helps you get the job done faster. The compact radius design lets you access and work in the tight…
Your safety is our top priority. The Cat mini excavator is designed to help keep you safe on the job. Courtesy work lights and a f…
Maintenance is quick and easy on the Cat mini excavator. Routine check points are easy to access at ground level through the side…
Equipped with features such as auto idle, auto engine shutdown, and efficient hydraulics with a variable displacement pump, the Ca…
Your Cat dealer is here to help you reach your business goals. From providing equipment solutions to operator training to service…
The Cat® C1.1 engine meets U.S. EPA Tier 4 Final, EU Stage V, and Japan 2014 emission standards. Cat diesel engines are requ…
Specification | Value |
Net Power | 17.6 kW |
Engine Model | C1.1 Turbo |
Bore | 77 mm |
Net Power - 2,400 rpm - ISO 9249, 80/1269/EEC | 17.6 kW |
Emissions | Meets U.S. EPA Tier 4 Final and EU Stage V emission standards. |
Stroke | 81 mm |
Note | Advertised power is tested per the specified standard in effect at the time of manufacture. |
Displacement | 1.1 l |
Gross Power - 2,400 rpm - SAE J1995:2014 | 18.4 kW |
Specification | Value |
Operating Weight | 3.545 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*** | 3.080 kg |
Minimum Operating Weight with Canopy* | 3.025 kg |
Minimum Operating Weight with Cab* | 3.140 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** | 3.425 kg |
EU: CE Plate Weight with Cab*** | 3.180 kg |
Maximum Operating Weight with Cab** | 3.545 kg |
Note (2) | **Maximum Weight is based on steel tracks, operator, full fuel tank, long stick, blade, bucket and extra counterweight. |
Specification | Value |
Dig Depth | 2.950 mm |
Boom Height - Shipping Position | 1.920 mm |
Tail Swing with Counterweight | 890 mm |
Track Belt/Shoe Width | 300 mm |
Maximum Reach | 5.240 mm |
Boom In Reach | 1.910 mm |
Boom Swing - Right | 870 mm |
Tail Swing | 845 mm |
Maximum Dump Clearance | 3.310 mm |
Ground Clearance | 310 mm |
O/A Undercarriage Length | 2.070 mm |
O/A Shipping Height | 2.480 mm |
Track Width - Expanded | 1.550 mm |
Maximum Blade Depth | 535 mm |
Maximum Reach - Ground Level | 5.110 mm |
Stick Length | 1.560 mm |
Overall Shipping Length* | 4.560 mm |
Maximum Dig Height | 4.650 mm |
Swing Bearing - Height | 570 mm |
Note | *Overall Shipping Length depends on blade position during shipment. |
Tail Swing without Counterweight | 775 mm |
Maximum Blade Height | 385 mm |
Boom Swing - Left | 640 mm |
Vertical Wall | 2.070 mm |
Specification | Value |
Height | 350 mm |
Width | 1.550 mm |
Specification | Value |
Maximum Blade Depth | 535 mm |
Tail Swing without Counterweight | 775 mm |
Maximum Dig Height | 4.510 mm |
O/A Undercarriage Length | 2.070 mm |
Boom Height - Shipping Position | 1.600 mm |
Vertical Wall | 1.820 mm |
Overall Shipping Length* | 4.510 mm |
Boom Swing - Left | 640 mm |
O/A Shipping Height | 2.480 mm |
Track Shoe Width | 1.550 mm |
Boom Swing - Right | 870 mm |
Tail Swing with Extra Counterweight | 890 mm |
Swing Bearing - Height | 570 mm |
Tail Swing | 845 mm |
Maximum Blade Height | 385 mm |
Dig Depth | 2.650 mm |
Maximum Dump Clearance | 3.170 mm |
Maximum Reach - Ground Level | 4.830 mm |
Maximum Reach | 4.980 mm |
Ground Clearance | 310 mm |
Track Belt/Shoe Width | 300 mm |
Boom In Reach | 1.750 mm |
Stick Length | 1.260 mm |
Note | *Overall Shipping Length depends on blade position during shipment. |
Specification | Value |
Boom Swing - Right | 50 ° |
Machine Swing Speed | 9 r/min |
Boom Swing - Left | 75 ° |
Specification | Value |
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” |
Specification | Value |
Auxiliary Circuit - Primary - Flow | 65 l/min |
Auxiliary Circuit - Secondary - Pressure | 245 bar |
Operating Pressure - Swing | 176 bar |
Pump Flow at 2,400 rpm | 100 l/min |
Type | Load Sensing Hydraulics with Variable Displacement Piston Pump |
Digging Force - Stick - Standard | 16.6 kN |
Operating Pressure - Travel | 245 bar |
Digging Force - Bucket | 28.4 kN |
Operating Pressure - Equipment | 245 bar |
Auxiliary Circuit - Primary - Pressure | 245 bar |
Auxiliary Circuit - Secondary - Flow | 25 l/min |
Digging Force - Stick - Long | 14.8 kN |
Note | * Flow and pressure are not combinable. Under load, as flow rises pressure goes down. |
Specification | Value |
Gradeability - Maximum | 30 degrees |
Ground Pressure - Maximum Weight | 32.3 kPa |
Ground Pressure - Minimum Weight | 27.6 kPa |
Travel Speed - High | 4.5 km/h |
Maximum Traction Force - Low Speed | 31.4 kN |
Travel Speed - Low | 2.6 km/h |
Maximum Traction Force - High Speed | 14.7 kN |
Specification | Value |
Cooling System | 4 l |
Hydraulic Tank | 18 l |
Engine Oil | 4 l |
Fuel Tank | 45 l |
Hydraulic System | 35 l |
Specification | Value |
Counterweight | 100 kg |
Cab | 115 kg |
Steel Tracks | 125 kg |
Long Stick | 25 kg |
Extra Counterweight | 250 kg |
Specification | Value |
Roll Over Protective Structure (ROPS) | ISO 12117-2:2008 |
Top Guard | ISO 10262:1998 (Level I) |
Tip Over Protective Structure (TOPS) | ISO 12117:1997 |
Specification | Value |
Recyclability | 95% |
Learn more information about the Cat 303 CR Mini Hydraulic Excavator.
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Mantrac Amerya - Alexandria
Km.28 Alex-Cairo Desert Road, Amreya, Al Amaria First, Alexandria Governorate, Egypt.
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