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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 |
| Net Power - 2,400 rpm - ISO 9249, 80/1269/EEC | 17.6 kW |
| Net Power - ISO 9249 | 18.4 kW |
| Bore | 77 mm |
| Stroke | 81 mm |
| Displacement | 1.1 l |
| Emissions | Meets U.S. EPA Tier 4 Final and EU Stage V emission standards. |
| Note | Advertised power is tested per the specified standard in effect at the time of manufacture. |
| Note (1) | Net power advertised is the power available at the flywheel when the engine is at the rated speed of 2,400 rpm and the engine is installed with the factory configured fan, air intake system, exhaust system and alternator with a minimum alternator load. |
| Specification | Value |
| Operating Weight | 3.545 kg |
| Minimum Operating Weight with Canopy* | 3.025 kg |
| Maximum Operating Weight with Canopy** | 3.425 kg |
| Minimum Operating Weight with Cab* | 3.140 kg |
| Maximum Operating Weight with Cab** | 3.545 kg |
| EU: CE Plate Weight with Canopy*** | 3.080 kg |
| EU: CE Plate Weight with Cab*** | 3.180 kg |
| Note (1) | *Minimum Weight is based on fixed rubber tracks, operator, full fuel tank, standard stick, blade, no bucket and extra counterweight. |
| Note (2) | **Maximum Weight is based on steel tracks, operator, full fuel tank, long stick, blade, no 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. |
| Specification | Value |
| Cab | 115 kg |
| Counterweight | 100 kg |
| Extra Counterweight | 250 kg |
| Long Stick | 25 kg |
| Steel Tracks | 125 kg |
| Specification | Value |
| Travel Speed - High | 4.5 km/h |
| Travel Speed - Low | 2.6 km/h |
| Maximum Traction Force - High Speed | 14.7 kN |
| Maximum Traction Force - Low Speed | 31.4 kN |
| Ground Pressure - Minimum Weight | 27.6 kPa |
| Ground Pressure - Maximum Weight | 32.3 kPa |
| Gradeability - Maximum | 30 degrees |
| Specification | Value |
| Cooling System | 4 l |
| Engine Oil | 4 l |
| Fuel Tank | 45 l |
| Hydraulic Tank | 18 l |
| Hydraulic System | 35 l |
| Specification | Value |
| Type | Load Sensing Hydraulics with Variable Displacement Piston Pump |
| Pump Flow at 2,400 rpm | 100 L/min |
| Operating Pressure - Equipment | 245 bar |
| Operating Pressure - Travel | 245 bar |
| Operating Pressure - Swing | 176 bar |
| 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 - Stick - Standard | 16.6 kN |
| Digging Force - Stick - Long | 14.8 kN |
| Digging Force - Bucket | 28.4 kN |
| Note | * Flow and pressure are not combinable. Under load, as flow rises pressure goes down. |
| Specification | Value |
| Machine Swing Speed | 9 r/min |
| Boom Swing - Left | 75 ° |
| Boom Swing - Right | 50 ° |
| Specification | Value |
| Width | 1.550 mm |
| Height | 350 mm |
| Specification | Value |
| Roll Over Protective Structure (ROPS) | ISO 12117-2:2008 |
| Tip Over Protective Structure (TOPS) | ISO 12117:1997 |
| Top Guard | ISO 10262:1998 (Level I) |
| Specification | Value |
| Dig Depth | 2.650 mm |
| Vertical Wall | 1.820 mm |
| Maximum Reach - Ground Level | 4.830 mm |
| Maximum Reach | 4.980 mm |
| Maximum Dig Height | 4.510 mm |
| Maximum Dump Clearance | 3.170 mm |
| Boom In Reach | 1.750 mm |
| Tail Swing without Counterweight | 775 mm |
| Tail Swing with Extra Counterweight | 890 mm |
| Maximum Blade Depth | 535 mm |
| Maximum Blade Height | 385 mm |
| Boom Height - Shipping Position | 1.600 mm |
| O/A Shipping Height | 2.480 mm |
| Swing Bearing - Height | 570 mm |
| O/A Undercarriage Length | 2.070 mm |
| Overall Shipping Length* | 4.510 mm |
| Boom Swing - Right | 870 mm |
| Boom Swing - Left | 640 mm |
| Track Belt/Shoe Width | 300 mm |
| Minimum Ground Clearance Below Undercarriage | 310 mm |
| Stick Length | 1.260 mm |
| Note | *Overall Shipping Length depends on blade position during shipment. |
| Specification | Value |
| Dig Depth | 2.950 mm |
| Vertical Wall | 2.070 mm |
| Maximum Reach - Ground Level | 5.110 mm |
| Maximum Reach | 5.240 mm |
| Maximum Dig Height | 4.650 mm |
| Maximum Dump Clearance | 3.310 mm |
| Boom In Reach | 1.910 mm |
| Tail Swing without Counterweight | 775 mm |
| Tail Swing - with Extra Counterweight | 890 mm |
| Maximum Blade Depth | 535 mm |
| Maximum Blade Height | 385 mm |
| Boom Height - Shipping Position | 1.920 mm |
| O/A Shipping Height | 2.480 mm |
| Swing Bearing - Height | 570 mm |
| O/A Undercarriage Length | 2.070 mm |
| Overall Shipping Length* | 4.560 mm |
| Boom Swing - Right | 870 mm |
| Boom Swing - Left | 640 mm |
| Track Belt/Shoe Width | 300 mm |
| Track Width | 1.550 mm |
| Stick Length | 1.560 mm |
| Minimum Ground Clearance Below Undercarriage | 310 mm |
| Note | *Overall Shipping Length depends on blade position during shipment. |
| Specification | Value |
| Air Conditioning | The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a or R1234yf (Europe) (Global Warming Potential = 1430). See label or instruction manual for gas refrigerant identification. The system contains 0.75 kg (1.65 lb), 0.90 kg (1.98 lb) or 1.0 kg (2.20 lb) of refrigerant which has a CO2 equivalent of 1.430 metric tonnes (1.576 tons) for R134a and 0.001 tonnes (0.001 tons) for R1234yf (Europe). |
| Specification | Value |
| Operator Sound Pressure (ISO 6396:2008) | 78 dB(A) |
| Average Exterior Sound Pressure (ISO 6395:2008) | 94 dB(A) |
| Note | European Union Directive “2000/14/EC” |
| Specification | Value |
| Recyclability | 95% |
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