305 CR Mini Hydraulic Excavator
The Cat® 305 CR Mini Excavator delivers power and performance in a compact size to help you work in a wide range of applications.
Engine
- Net Power
- 45hp
- Engine Model
- C1.7 Turbo
- Net Power - 2,400 rpm - ISO 9249, 80/1269/EEC
- 45hp
- Note
- Advertised power is tested per the specified standard in effect at the time of manufacture.
- Gross Power - 2,400 rpm - SAE J1995:2014
- 48.4hp
- Stroke
- 3.9in
- Bore
- 3.3in
- Displacement
- 101in³
- Emissions
- The Cat® C1.7 engine 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 the rated speed of 2400 rpm and the engine is installed with the factory configured fan, air intake system, exhaust system and alternator with a minimum alternator load.
Weights
- Operating Weight
- 12688lb
- Minimum Operating Weight with Canopy*
- 11016lb
- Note (1)
- *Minimum Weight is based on rubber tracks, operator, full fuel tank, standard stick, straight blade, no bucket and no extra counterweight.
- Minimum Operating Weight with Cab*
- 11234lb
- Maximum Operating Weight with Cab**
- 12688lb
- Maximum Operating Weight with Canopy**
- 12469lb
- Note (2)
- **Maximum Weight is based on steel tracks with pads, operator, full fuel tank, long stick, straight blade, extra counterweight and no bucket.
Dimensions - Long Stick
- Dig Depth
- 144.5in
- Stick Length
- 63in
- Track Width
- 78in
- Maximum Blade Depth
- 23.4in
- Maximum Dump Clearance
- 151.4in
- Boom Swing - Left
- 615mm
- Boom Swing - Right
- 34.1°
- Swing Bearing - Height
- 24.4in
- Boom Height - Shipping Position
- 74.6in
- Boom In Reach
- 101.6in
- Maximum Reach
- 235.8in
- Track Belt/Shoe Width
- 15.7in
- Maximum Reach - Ground Level
- 229.7in
- Maximum Blade Height
- 15.2in
- O/A Shipping Height
- 100.4in
- Tail Swing without Counterweight
- 43.1in
- O/A Undercarriage Length
- 101.6in
- Tail Swing with Counterweight
- 47.2in
- Vertical Wall
- 100.8in
- Note
- *Overall Shipping Length depends on blade position during shipment.
- Overall Shipping Length*
- 210.2in
- Maximum Dig Height
- 210.8in
- Ground Clearance
- 13.2in
Sustainability
- Recyclability
- 96%
Swing System
- Boom Swing - Left
- 72 Degrees
- Machine Swing Speed
- 9r/min
- Boom Swing - Right
- 50 Degrees
Dimensions - Standard Stick
- Maximum Dig Height
- 205.3in
- Maximum Blade Height
- 15.2in
- Dig Depth
- 134.6in
- Boom Swing - Right
- 34.1°
- Maximum Reach - Ground Level
- 220.1in
- Tail Swing without Counterweight
- 43.1in
- Boom Height - Shipping Position
- 71.7in
- Maximum Blade Depth
- 23.4in
- Maximum Reach
- 226.6in
- Boom Swing - Left
- 24.2°
- Overall Shipping Length*
- 208.9in
- O/A Undercarriage Length
- 101.6in
- Swing Bearing - Height
- 24.4in
- Stick Length
- 53.2in
- Track Belt/Shoe Width
- 15.7in
- Boom In Reach
- 101.2in
- Vertical Wall
- 91.9in
- Tail Swing with Counterweight
- 47.2in
- Maximum Dump Clearance
- 145.7in
- O/A Shipping Height
- 100.4in
- Note
- *Overall Shipping Length depends on blade position during shipment.
- Ground Clearance
- 13.2in
Service Refill Capacities
- Hydraulic Tank
- 16gal (US)
- Fuel Tank
- 17gal (US)
- Engine Oil
- 1.6gal (US)
- Hydraulic System
- 20gal (US)
- Cooling System
- 2.9gal (US)
Travel System
- Ground Pressure - Minimum Weight
- 4psi
- Maximum Traction Force - Low Speed
- 11353lbf
- Ground Pressure - Maximum Weight
- 4.7psi
- Travel Speed - Low
- 1.7mile/h
- Maximum Traction Force - High Speed
- 5553lbf
- Travel Speed - High
- 3.1mile/h
- Gradeability - Maximum
- 30 degrees
Blade
- Angle Blade Width
- 78in
- Straight Blade Height
- 15.4in
- Straight Blade Width
- 78in
- Angle Blade Height
- 15.7in
- Angle Blade - Left
- 25 degrees
- Angle Blade - Right
- 25 degrees
Sound
- Average Exterior Sound Pressure (ISO 6395:2008)
- 97dB(A)
- Note
- *The declared dynamic operator sound pressure levels per ISO 6396:2008. The measurements were conducted with the cab doors and windows closed. **The labeled sound power level for the CE marked configurations when measured according to the test procedure a
- Operator Sound Pressure (ISO 6396:2008)
- 76dB(A)
Hydraulic System
- Auxiliary Circuit - Secondary - Pressure
- 3843psi
- Pump Flow at 2,400 rpm
- 35gal/min
- Operating Pressure - Swing
- 2901psi
- Operating Pressure - Travel
- 3843psi
- Auxiliary Circuit - Secondary - Flow
- 7gal/min
- Digging Force - Stick - Standard
- 6362lbf
- Auxiliary Circuit - Primary - Pressure
- 3843psi
- Auxiliary Circuit - Primary - Flow
- 21gal/min
- Digging Force - Bucket
- 11061lbf
- Operating Pressure - Equipment
- 3843psi
- Note
- Flow and pressure are not combinable. Under load, as flow rises pressure goes down.
- Type
- Load Sensing Hydraulics with Variable Displacement Piston Pump
- Digging Force - Stick - Long
- 5665lbf
Certification - Cab and Canopy
- Top Guard
- ISO 10262:1998 Level I
- Roll Over Protective Structure (ROPS)
- ISO 12117-2:2008
- Tip Over Protective Structure (TOPS)
- ISO 12117:1997
Weight Increase from Minimum Configuration
- Counterweight
- 534lb
- Long Stick
- 75lb
- Steel Tracks with Pads
- 827lb
- Angle Blade
- 225lb
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 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 as an upgrade option.
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. Dig-to-blade and dozer blade float allows for easy clean up. An angle blade is also an option for finished grading and easier backfilling applications.
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 with optional seat belt reminder system 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.
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.
UNMATCHED DEALER SUPPORT
- Your Cat dealer is here to help you reach your business goals. From providing equipment solutions to operator training to service needs and beyond, your Cat dealer is ready to help.
