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Upgraded Performance
25% higher transient speeds result in 35% more productivity**Up to 25% and 35%, are against the previous model and based upon application, conditions and temperatures.
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.
25% higher transient speeds result in 35% more productivity**Up to 25% and 35%, are against the previous model and based upon application, conditions and temperatures.
Stick steer joystick travel, cruise control, Sealed and pressurized cab with AC, Tilt-cab service access
Easy service and repair access and extended service intervals and VisionLink™ Telematics
| Net Power | 23.6hp |
| Engine Model | C1.7 |
| Net Power @ 2,200 rpm - U.S. EPA Tier 4 Final/EU Stage V - ISO 9249/EEC 80/1269 | 23.6hp |
| Net Power - ISO 9249 | 24.7hp |
| Bore | 3.3in |
| Stroke | 3.9in |
| Displacement | 104in³ |
| 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 2,200 rpm and the engine is installed with the factory configured fan, air intake system, exhaust system and alternator with a minimum alternator load. |
| Operating Weight | 9239lb |
| Minimum Operating Weight with Canopy* | 7673lb |
| Maximum Operating Weight with Canopy** | 8930lb |
| Minimum Operating Weight with Cab* | 7982lb |
| Maximum Operating Weight with Cab** | 9239lb |
| EU: CE Plate Weight with Canopy*** | 7784lb |
| EU: CE Plate Weight with Cab*** | 8004lb |
| 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. |
| Dig Depth | 122.4in |
| Vertical Wall | 94.1in |
| Maximum Reach - Ground Level | 211.8in |
| Maximum Reach | 216.9in |
| Maximum Dig Height | 197.6in |
| Maximum Dump Clearance | 141.7in |
| Boom In Reach | 73.2in |
| Tail Swing without Counterweight | 35in |
| Tail Swing - with Extra Counterweight | 39.6in |
| Maximum Blade Depth | 21.1in |
| Maximum Blade Height | 15.2in |
| Boom Height - Shipping Position | 68.9in |
| O/A Shipping Height | 97.6in |
| Swing Bearing - Height | 22.2in |
| O/A Undercarriage Length | 87.4in |
| Overall Shipping Length* | 190.9in |
| Boom Swing - Right | 34.3° |
| Boom Swing - Left | 640mm |
| Track Belt/Shoe Width | 11.8in |
| Track Width | 70.1in |
| Minimum Ground Clearance Below Undercarriage | 12.2in |
| Stick Length | 61.4in |
| Note | *Overall Shipping Length depends on blade position during shipment. |
| Recyclability | 95% |
| Travel Speed - High | 2.8mile/h |
| Travel Speed - Low | 1.6mile/h |
| Maximum Traction Force - High Speed | 3799lbf |
| Maximum Traction Force - Low Speed | 6969lbf |
| Ground Pressure - Minimum Weight | 4.3psi |
| Ground Pressure - Maximum Weight | 5.2psi |
| Gradeability - Maximum | 30 degrees |
| 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 |
| Operator Sound Pressure (ISO 6396:2008) | 78dB(A) |
| Average Exterior Sound Pressure (ISO 6395:2008) | 94dB(A) |
| Note | European Union Directive ‚ "2000/14/EC" |
| Type | Load Sensing Hydraulics with Variable Displacement Piston Pump |
| Pump Flow at 2,400 rpm | 26gpm |
| Operating Pressure - Equipment | 3553psi |
| Operating Pressure - Travel | 3553psi |
| Operating Pressure - Swing | 2625psi |
| Auxiliary Circuit - Primary - Flow | 18gpm |
| Auxiliary Circuit - Primary - Pressure | 3553psi |
| Auxiliary Circuit - Secondary - Flow | 7gpm |
| Auxiliary Circuit - Secondary - Pressure | 3553psi |
| Digging Force - Stick - Standard | 4249lbf |
| Digging Force - Stick - Long | 3799lbf |
| Digging Force - Bucket | 7419lbf |
| Note | *Flow and pressure are not combinable. Under load, as flow rises pressure goes down. |
| Machine Swing Speed | 9r/min |
| Boom Swing - Left | 75° |
| Boom Swing - Right | 50° |
| Dig Depth | 110.6in |
| Vertical Wall | 88.6in |
| Maximum Reach - Ground Level | 202in |
| Maximum Reach | 207.5in |
| Maximum Dig Height | 193.7in |
| Maximum Dump Clearance | 137.4in |
| Boom In Reach | 69.3in |
| Tail Swing without Counterweight | 35in |
| Tail Swing with Extra Counterweight | 39.6in |
| Maximum Blade Depth | 21.1in |
| Maximum Blade Height | 15.2in |
| Boom Height - Shipping Position | 59.8in |
| O/A Shipping Height | 97.6in |
| Swing Bearing - Height | 22.2in |
| O/A Undercarriage Length | 87.4in |
| Overall Shipping Length* | 189in |
| Boom Swing - Right | 34.3° |
| Boom Swing - Left | 25.2° |
| Track Belt/Shoe Width | 11.8in |
| Track Width | 70.1in |
| Minimum Ground Clearance Below Undercarriage | 12.2in |
| Stick Length | 49.6in |
| Note | *Overall Shipping Length depends on blade position during shipment. |
| Roll Over Protective Structure (ROPS) | ISO 12117-2:2008 |
| Tip Over Protective Structure (TOPS) | ISO 12117:1997 |
| Top Guard | ISO 10262:1998 (Level I) |
| Cooling System | 1.8gal (US) |
| Engine Oil | 1.6gal (US) |
| Fuel Tank | 11.9gal (US) |
| Hydraulic Tank | 5.3gal (US) |
| Hydraulic System | 11.9gal (US) |
| Width | 70.1in |
| Height | 13.8in |
| Cab | 309lb |
| Counterweight | 221lb |
| Extra Counterweight | 551lb |
| Long Stick | 44lb |
| Steel Tracks | 287lb |
| Angle Blade | 353lb |
| Engine |
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| Hydraulics |
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| Operator Environment |
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| Undercarriage |
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| Boom, Stick And Linkages |
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| Guarding |
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| Electrical |
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| Operator Environment |
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| Undercarriage |
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| Boom, Stick And Linkages |
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| Electrical |
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| Guarding |
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| Other |
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