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.
Engine
- Net Power
- 23.6hp
- Engine Model
- C1.7
- Bore
- 3.3in
- Net Power @ 2,200 rpm - U.S. EPA Tier 4 Final/EU Stage V - ISO 9249/EEC 80/1269
- 23.6hp
- Displacement
- 104in³
- Note
- Net power is tested per ISO 9249 and 80/1269/EEC.
- Emissions
- Meets U.S. EPA Tier 4 Final and EU Stage V emission standards.
- 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.
- Stroke
- 3.9in
- Gross Power - 2,400 rpm - SAE J1995
- 24.7hp
Weights
- Operating Weight
- 9239lb
- Minimum Operating Weight with Canopy*
- 7673lb
- EU: CE Plate Weight with Cab***
- 8004lb
- 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 Cab**
- 9239lb
- Maximum Operating Weight with Canopy**
- 8930lb
- EU: CE Plate Weight with Canopy***
- 7784lb
- Minimum Operating Weight with Cab*
- 7982lb
- 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.
Dimensions - Long Stick
- Dig Depth
- 122.4in
- Track Belt/Shoe Width
- 11.8in
- Maximum Reach
- 216.9in
- O/A Track Width
- 70.1in
- Maximum Blade Depth
- 21.1in
- Tail Swing without Counterweight
- 35in
- Stick Length
- 61.4in
- Swing Bearing - Height
- 22.2in
- Boom Swing - Left
- 640mm
- Overall Shipping Length*
- 190.9in
- Maximum Reach - Ground Level
- 211.8in
- Maximum Dump Clearance
- 141.7in
- O/A Shipping Height
- 97.6in
- Note
- *Overall Shipping Length depends on blade position during shipment.
- Boom In Reach
- 73.2in
- Maximum Dig Height
- 197.6in
- Vertical Wall
- 94.1in
- Boom Height - Shipping Position
- 68.9in
- Maximum Blade Height
- 15.2in
- O/A Undercarriage Length
- 87.4in
- Boom Swing - Right
- 34.3°
- Tail Swing with Counterweight
- 37.8in
- Ground Clearance
- 12.2in
Blade
- Height
- 13.8in
- Width
- 70.1in
Service Refill Capacities
- Cooling System
- 1.8gal (US)
- Fuel Tank
- 11.9gal (US)
- Hydraulic Tank
- 5.3gal (US)
- Engine Oil
- 1.6gal (US)
- Hydraulic System
- 11.9gal (US)
Sustainability
- Recyclability
- 95%
Dimensions - Standard Stick
- Boom Swing - Right
- 34.3°
- Stick Length
- 49.6in
- Maximum Reach - Ground Level
- 202in
- Boom Swing - Left
- 25.2°
- Maximum Reach
- 207.5in
- Track Belt/Shoe Width
- 11.8in
- Maximum Dump Clearance
- 137.4in
- Swing Bearing - Height
- 22.2in
- Boom Height - Shipping Position
- 59.8in
- O/A Shipping Height
- 97.6in
- Overall Shipping Length*
- 189in
- Boom In Reach
- 69.3in
- Note
- *Overall Shipping Length depends on blade position during shipment.
- Maximum Dig Height
- 193.7in
- Vertical Wall
- 88.6in
- Dig Depth
- 110.6in
- O/A Undercarriage Length
- 87.4in
- Tail Swing without Counterweight
- 35in
- Maximum Blade Depth
- 21.1in
- Maximum Blade Height
- 15.2in
- Tail Swing with Counterweight
- 37.8in
- Tail Swing with Extra Counterweight
- 39.6in
- Ground Clearance
- 12.2in
Travel System
- Ground Pressure - Minimum Weight
- 4.3psi
- Maximum Traction Force - High Speed
- 3799lbf
- Maximum Traction Force - Low Speed
- 6969lbf
- Travel Speed - High
- 2.8mile/h
- Gradeability - Maximum
- 30 degrees
- Travel Speed - Low
- 1.6mile/h
- Ground Pressure - Maximum Weight
- 5.2psi
Hydraulic System
- Pump Flow at 2,400 rpm
- 26gal/min
- Auxiliary Circuit - Primary - Flow
- 18gal/min
- Operating Pressure - Swing
- 2625psi
- Type
- Load Sensing Hydraulics with Variable Displacement Piston Pump
- Auxiliary Circuit - Secondary - Pressure
- 3553psi
- Digging Force - Stick - Long
- 3799lbf
- Auxiliary Circuit - Secondary - Flow
- 7gal/min
- Digging Force - Bucket
- 7419lbf
- Operating Pressure - Travel
- 3553psi
- Operating Pressure - Equipment
- 3553psi
- Auxiliary Circuit - Primary - Pressure
- 3553psi
- Digging Force - Stick - Standard
- 4249lbf
- Note
- *Flow and pressure are not combinable. Under load, as flow rises pressure goes down.
Sound
- Note
- European Union Directive ‚ "2000/14/EC"
- Operator Sound Pressure (ISO 6396:2008)
- 78dB(A)
- Average Exterior Sound Pressure (ISO 6395:2008)
- 94dB(A)
Weight Increase from Minimum Configuration
- Steel Tracks
- 287lb
- Long Stick
- 44lb
- Cab
- 309lb
- Counterweight
- 221lb
- Angle Blade
- 353lb
- Extra Counterweight
- 551lb
Swing System
- Machine Swing Speed
- 9r/min
- Boom Swing - Right
- 50°
- Boom Swing - Left
- 75°
Certification - Cab and Canopy
- Roll Over Protective Structure (ROPS)
- ISO 12117-2:2008
- Tip Over Protective Structure (TOPS)
- ISO 12117:1997
- Top Guard
- ISO 10262:1998 (Level I)
Dimensions (Approximate) - Standard Stick
- Tail Swing with Extra Counterweight
- 39.6in
Dimensions (Approximate) - Long Stick
- Tail Swing with Extra Counterweight
- 39.6in
ALL DAY COMFORT
- Choose either a canopy or a sealed and pressurized cab which can be equipped with air conditioning, adjustable wrist rests, and a suspension seat option to help keep you working comfortably all day long.
EASY TO OPERATE
- Controls are easy to use and the intuitive Next Generation LCD monitor provides easy to read machine information. An advanced touchscreen monitor can also be equipped.
STICK STEER TRAVEL MODE
- Moving around the job site is even easier with the Cat Stick Steer option. Easily switch from traditional travel controls with levers and pedals to joystick controls to move the machine and to operate the blade. The benefit of less effort and improved control is in your hands!
BIG PERFORMANCE IN A COMPACT DESIGN
- Strong lift and dig performance helps you get the job done faster. The compact radius design lets you access and work in the tightest areas. Dozer float allows for easy clean up.
SAFETY ON THE JOB SITE
- 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 fluorescent retractable seat belt are just a couple of the safety features we’ve built into the machine.
SIMPLE SERVICE FOR LESS DOWNTIME
- Maintenance is quick and easy on the Cat mini excavator. Routine check points are easy to access at ground level through the side doors. The unique tilt up cab or canopy lets you reach additional service areas when needed.
LOWER OPERATING COSTS
- Equipped with features such as auto idle, auto engine shutdown, and efficient hydraulics with a variable displacement pump, the Cat mini excavator was designed with reducing your operating costs in mind.
SUSTAINABILITY
- The Cat® C1.7 engine meets U.S. EPA Tier 4 Final, EU Stage V, and Japan 2014 emission standards.
- Cat diesel engines are required to use ULSD (ultra-low sulfur diesel fuel with 15 ppm of sulfur or less) or ULSD blended with the following lower-carbon intensity fuels up to: 20% biodiesel FAME (fatty acid methyl ester) * or 100% renewable diesel, HVO (hydrotreated vegetable oil) and GTL (gas-to-liquid) fuels. Refer to guidelines for successful application. Please consult your Cat dealer or “Caterpillar Machine Fluids Recommendations” (SEBU6250) for details.
- Auto Idle helps reduce unnecessary fuel burn and greenhouse gas emissions by allowing the engine to automatically go into idle mode when the machine is not working.
- Engine Idle Shutdown Timer reduces fuel burn, greenhouse gas emissions and unnecessary idle time by shutting down the machine after a pre-set idling period.
- Cruise control helps you maintain a constant speed as you travel across your jobsite saving fuel and reducing greenhouse gas emissions.
- The Cat® Seat Belt Reminder provides audible and visual warnings to remind operators to buckle up during machine operation. The easy-to-install system is compatible with all equipment brands to help ensure operator safety.
- Extended maintenance intervals not only reduce downtime but decrease the amount of fluid and filters that are replaced over the life of the machine.
- Remote Flash minimizes downtime and maintenance time while keeping your asset running with maximum efficiency. Alerts for machine updates are sent virtually from your Cat dealer and updates can be deployed without a dealer technician needing to be onsite.(if equipped)
- Remote Troubleshoot decreases maintenance time and keeps your machine running with maximum efficiency by allowing your Cat dealer to virtually test the machine while working. Once a problem is identified, a technician can fix it the first time, saving time and money.(if equipped)
- Cat Grade with advanced 2D and 3D technologies combine advanced guidance with optional automated machine control helping you reach grading targets while reducing fuel burn and greenhouse gas emissions by improving efficiency, job site productivity, and accuracy. (if equipped).
*Engines with no aftertreatment devices can use higher blends, up to 100% biodiesel. (for use of blends higher than 20% biodiesel, consult your Cat dealer)
