305 CR Mini Hydraulic Excavator

Mini Excavators Inspired by Our Customers

The Cat® 305 CR Mini Excavator delivers power and performance in a compact size to help you work in a wide range of applications.

The Cat® 305 CR Mini Excavator delivers power and performance in a compact size to help you work in a wide range of applications.

Highlights
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Features & Specs
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Equipment Highlights

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.

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Features + Specs

Equipment Features
Optional Equipment
Specs
  • Straight Blade Width: 78 in
  • Straight Blade Height: 15.4 in
  • Angle Blade Width: 78 in
  • Angle Blade Height: 15.7 in
  • Angle Blade - Left: 25 degrees
  • Angle Blade - Right: 25 degrees
  • Operator Sound Pressure (ISO 6396:2008): 76 dB(A)
  • Average Exterior Sound Pressure (ISO 6395:2008): 97 dB(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 and conditions specified in 2000/14/EC.
  • Net Power: 45 hp
  • Engine Model: C1.7 Turbo
  • Net Power - 2,400 rpm - ISO 9249, 80/1269/EEC: 45 hp
  • Gross Power - 2,400 rpm - SAE J1995:2014: 48.4 hp
  • Bore: 3.3 in
  • Stroke: 3.9 in
  • Displacement: 101 in³
  • Emissions: The Cat® C1.7 engine 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 (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.
  • Operating Weight: 12688 lb
  • Minimum Operating Weight with Canopy*: 11016 lb
  • Maximum Operating Weight with Canopy**: 12469 lb
  • Minimum Operating Weight with Cab*: 11234 lb
  • Maximum Operating Weight with Cab**: 12688 lb
  • Note (1): *Minimum Weight is based on rubber tracks, operator, full fuel tank, standard stick, straight blade, no bucket and no extra counterweight.
  • Note (2): **Maximum Weight is based on steel tracks with pads, operator, full fuel tank, long stick, straight blade, extra counterweight and no bucket.
  • Machine Swing Speed: 9 r/min
  • Boom Swing - Left: 72 Degrees
  • Boom Swing - Right: 50 Degrees
  • Travel Speed - High: 3.1 mile/h
  • Travel Speed - Low: 1.7 mile/h
  • Maximum Traction Force - High Speed: 5553 lbf
  • Maximum Traction Force - Low Speed: 11353 lbf
  • Ground Pressure - Minimum Weight: 4 psi
  • Ground Pressure - Maximum Weight: 4.7 psi
  • Gradeability - Maximum: 30 degrees
  • Recyclability: 96%
  • Pump Flow at 2,400 rpm: 35 gpm
  • Operating Pressure - Equipment: 3843 psi
  • Operating Pressure - Travel: 3843 psi
  • Operating Pressure - Swing: 2901 psi
  • Auxiliary Circuit - Primary - Flow: 21 gpm
  • Auxiliary Circuit - Primary - Pressure: 3843 psi
  • Auxiliary Circuit - Secondary - Flow: 7 gpm
  • Auxiliary Circuit - Secondary - Pressure: 3843 psi
  • Digging Force - Stick - Standard: 6362 lbf
  • Digging Force - Stick - Long: 5665 lbf
  • Digging Force - Bucket: 11061 lbf
  • Note: Flow and pressure are not combinable. Under load, as flow rises pressure goes down.
  • Type: Load Sensing Hydraulics with Variable Displacement Piston Pump
  • 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).
  • Dig Depth: 144.5 in
  • Vertical Wall: 100.8 in
  • Maximum Reach - Ground Level: 229.7 in
  • Maximum Reach: 235.8 in
  • Maximum Dig Height: 210.8 in
  • Maximum Dump Clearance: 151.4 in
  • Boom In Reach: 101.6 in
  • Tail Swing without Counterweight: 43.1 in
  • Tail Swing with Counterweight: 47.2 in
  • Maximum Blade Height: 15.2 in
  • Maximum Blade Depth: 23.4 in
  • Boom Height - Shipping Position: 74.6 in
  • O/A Shipping Height: 100.4 in
  • Swing Bearing - Height: 24.4 in
  • O/A Undercarriage Length: 101.6 in
  • Overall Shipping Length*: 210.2 in
  • Boom Swing - Right: 34.1 °
  • Boom Swing - Left: 615 mm
  • Track Belt/Shoe Width: 15.7 in
  • Track Width: 78 in
  • Ground Clearance: 13.2 in
  • Stick Length: 63 in
  • Note: *Overall Shipping Length depends on blade position during shipment.
  • Cooling System: 2.9 gal (US)
  • Engine Oil: 1.6 gal (US)
  • Fuel Tank: 17 gal (US)
  • Hydraulic Tank: 16 gal (US)
  • Hydraulic System: 20 gal (US)
  • Dig Depth: 134.6 in
  • Vertical Wall: 91.9 in
  • Maximum Reach - Ground Level: 220.1 in
  • Maximum Reach: 226.6 in
  • Maximum Dig Height: 205.3 in
  • Maximum Dump Clearance: 145.7 in
  • Boom In Reach: 101.2 in
  • Tail Swing without Counterweight: 43.1 in
  • Tail Swing with Counterweight: 47.2 in
  • Maximum Blade Height: 15.2 in
  • Maximum Blade Depth: 23.4 in
  • Boom Height - Shipping Position: 71.7 in
  • O/A Shipping Height: 100.4 in
  • Swing Bearing - Height: 24.4 in
  • O/A Undercarriage Length: 101.6 in
  • Overall Shipping Length*: 208.9 in
  • Boom Swing - Right: 34.1 °
  • Boom Swing - Left: 24.2 °
  • Track Belt/Shoe Width: 15.7 in
  • Track Width: 78 in
  • Ground Clearance: 13.2 in
  • Stick Length: 53.2 in
  • Note: *Overall Shipping Length depends on blade position during shipment.
  • Roll Over Protective Structure (ROPS): ISO 12117-2:2008
  • Top Guard: ISO 10262:1998 Level I
  • Counterweight: 534 lb
  • Long Stick: 75 lb
  • Steel Tracks with Pads: 827 lb
  • Angle Blade: 225 lb
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