305 CR

305 CR

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

Net Power 45 hp 33.6 kW
Operating Weight 12688 lb 5754 kg
Dig Depth 144.5 in 3670 mm

Technicial Specifications

Engine
Net Power 45 hp 33.6 kW
Engine Model C1.7 Turbo C1.7 Turbo
Net Power - 2,400 rpm - ISO 9249, 80/1269/EEC 45 hp 33.6 kW
Gross Power - 2,400 rpm - SAE J1995:2014 48.4 hp 36.1 kW
Bore 3.3 in 84 mm
Stroke 3.9 in 100 mm
Displacement 101 in³ 1.662 l
Emissions Meets U.S. EPA Tier 4 Final and EU Stage V emissions standards. Meets U.S. EPA Tier 4 Final and EU Stage V emissions standards.
Note Advertised power is tested per the specified standard in effect at the time of manufacture. Advertised power is tested per the specified standard in effect at the time of manufacture.
Weights
Operating Weight 12688 lb 5754 kg
Minimum Operating Weight with Canopy* 11038 lb 5006 kg
Maximum Operating Weight with Canopy** 12491 lb 5665 kg
Minimum Operating Weight with Cab* 11257 lb 5105 kg
Maximum Operating Weight with Cab** 12710 lb 5764 kg
Note (1) *Minimum Weight is based on rubber tracks, operator, full fuel tank, standard stick, straight blade, no bucket and no extra counterweight. *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. **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 144.5 in 3670 mm
Vertical Wall 100.8 in 2560 mm
Maximum Reach - Ground Level 229.7 in 5835 mm
Maximum Reach 235.8 in 5990 mm
Maximum Dig Height 210.8 in 5355 mm
Maximum Dump Clearance 151.4 in 3845 mm
Boom In Reach 101.6 in 2580 mm
Tail Swing without Counterweight 43.1 in 1095 mm
Tail Swing with Counterweight 47.2 in 1200 mm
Maximum Blade Height 15.7 in 400 mm
Maximum Blade Depth 25.6 in 650 mm
Boom Height - Shipping Position 74.6 in 1895 mm
O/A Shipping Height 100.4 in 2550 mm
Swing Bearing - Height 24.4 in 619 mm
O/A Undercarriage Length 101.6 in 2580 mm
Overall Shipping Length* 210.2 in 5340 mm
Boom Swing - Right 34.1 ° 865 mm
Boom Swing - Left 615 mm 24.2 °
Track Belt/Shoe Width 15.7 in 400 mm
Track Width 78 in 1980 mm
Ground Clearance 13.2 in 335 mm
Stick Length 63 in 1601 mm
Note *Overall Shipping Length depends on blade position during shipment. *Overall Shipping Length depends on blade position during shipment.
Weight Increase from Minimum Configuration
Counterweight 534 lb 242 kg
Long Stick 75 lb 34 kg
Steel Tracks with Pads 827 lb 375 kg
Angle Blade 203 lb 92 kg
Travel System
Travel Speed - High 3.1 mile/h 5 km/h
Travel Speed - Low 1.7 mile/h 2.8 km/h
Maximum Traction Force - High Speed 5553 lbf 24.7 kN
Maximum Traction Force - Low Speed 11353 lbf 50.5 kN
Ground Pressure - Minimum Weight 4 psi 27.3 kPa
Ground Pressure - Maximum Weight 4.7 psi 32.2 kPa
Gradeability - Maximum 30 degrees 30 degrees
Service Refill Capacities
Cooling System 2.9 gal (US) 11 l
Engine Oil 1.6 gal (US) 6 l
Fuel Tank 18 gal (US) 68 l
Hydraulic Tank 16 gal (US) 60 l
Hydraulic System 20 gal (US) 75 l
Hydraulic System
Pump Flow at 2,400 rpm 35 gpm 133 L/min
Operating Pressure - Equipment 3843 psi 265 bar
Operating Pressure - Travel 3843 psi 265 bar
Operating Pressure - Swing 2901 psi 200 bar
Auxiliary Circuit - Primary - Flow 21 gpm 80 L/min
Auxiliary Circuit - Primary - Pressure 3843 psi 265 bar
Auxiliary Circuit - Secondary - Flow 7 gpm 28 L/min
Auxiliary Circuit - Secondary - Pressure 3843 psi 265 bar
Digging Force - Stick - Standard 6362 lbf 28.3 kN
Digging Force - Stick - Long 5665 lbf 25.2 kN
Digging Force - Bucket 11061 lbf 49.2 kN
Note Flow and pressure are not combinable. Under load, as flow rises pressure goes down. Flow and pressure are not combinable. Under load, as flow rises pressure goes down.
Type Load Sensing Hydraulics with Variable Displacement Piston Pump Load Sensing Hydraulics with Variable Displacement Piston Pump
Blade
Straight Blade Width 78 in 1980 mm
Straight Blade Height 15.4 in 390 mm
Angle Blade Width 78 in 1980 mm
Angle Blade Height 15.7 in 400 mm
Angle Blade - Left 25 degrees 25 degrees
Angle Blade - Right 25 degrees 25 degrees
Certification - Cab and Canopy
Roll Over Protective Structure (ROPS) ISO 12117-2:2008 ISO 12117-2:2008
Top Guard ISO 10262:1998 Level I ISO 10262:1998 Level I
Dimensions - Standard Stick
Dig Depth 134.6 in 3420 mm
Vertical Wall 91.9 in 2335 mm
Maximum Reach - Ground Level 220.1 in 5590 mm
Maximum Reach 226.6 in 5755 mm
Maximum Dig Height 205.3 in 5215 mm
Maximum Dump Clearance 145.7 in 3700 mm
Boom In Reach 101.2 in 2570 mm
Tail Swing without Counterweight 43.1 in 1095 mm
Tail Swing with Counterweight 47.2 in 1200 mm
Maximum Blade Height 15.7 in 400 mm
Maximum Blade Depth 25.6 in 650 mm
Boom Height - Shipping Position 71.7 in 1820 mm
O/A Shipping Height 100.4 in 2550 mm
Swing Bearing - Height 24.4 in 619 mm
O/A Undercarriage Length 101.6 in 2580 mm
Overall Shipping Length* 208.9 in 5305 mm
Boom Swing - Right 34.1 ° 865 mm
Boom Swing - Left 24.2 ° 615 mm
Track Belt/Shoe Width 15.7 in 400 mm
Ground Clearance 13.2 in 335 mm
Stick Length 53.2 in 1351 mm
Note *Overall Shipping Length depends on blade position during shipment. *Overall Shipping Length depends on blade position during shipment.
Air Conditioning System
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). 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).
Sound
Operator Sound Pressure (ISO 6396:2008) 76 dB(A) 76 dB(A)
Average Exterior Sound Pressure (ISO 6395:2008) 97 dB(A) 97 dB(A)
Note European Union Directive "2000/14/EC" European Union Directive "2000/14/EC"
Sustainability
Recyclability 96% 96%
Swing System
Machine Swing Speed 9 r/min 9 r/min
Boom Swing - Left 72 Degrees 72 Degrees
Boom Swing - Right 50 Degrees 50 Degrees

Advantages and Features

ALL DAY COMFORT

  • Choose either a canopy (not available in some regions) 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. Dozer 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.

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)

Standard Equipment

  • ENGINE
    • Cat® C1.7 Turbo Engine (EU Stage V)
    • Automatic Engine Idle
    • Automatic Engine Shutdown
    • Automatic Two Speed Travel
    • Fuel Water Separator
    • Power on Demand (not available in all regions)
    • Variable Displacement Piston Pump
    • Load Sensing/Flow Sharing Hydraulics
  • HYDRAULICS
    • Smart Tech Electronic Pump
    • Accumulator
    • Automatic Swing Brake
    • Auxiliary Hydraulic Lines
    • One and Two Way Auxiliary Flow
    • Continuous Auxiliary Flow
    • Auxiliary Line Quick Disconnects
  • OPERATOR ENVIRONMENT
    • Canopy or Cab (Canopy not available in some regions)
    • Stick Steer Mode
    • Travel Cruise Control
    • Control Pattern Changer (optional in some regions)
    • Adjustable Wrist Rests
    • Washable Floor Mat
    • Travel Pedals and Hand Levers
    • Machine Security
    • Fabric Suspension Seat (Cab only)
    • Vinyl Suspension Seat (Canopy only)
    • Hydraulic Lockout – All Controls
    • Retractable High Visibility Seat Belt (75 mm/3 in)
    • Coat Hook
    • Cup Holder
    • Storage Pocket
    • Skylight
    • Mounting Bosses for Front
    • Signaling/Warning Horn
    • Interior Light (Cab only)
    • Boom Light, Halogen (not available in all regions)
    • LED Front and Rear Lights
    • LED Boom Light
    • Utility Space for Mobile Phone
    • Next Generation Color LCD Monitor (IP66)
      – Fuel Level and Coolant Temperature Gauges
      – Maintenance and Machine Monitoring
      – Performance and Machine Adjustments
      – Numeric Security Code
      – Multiple Languages
      – Hour Meter with Wake Up Switch
      – Jog Dial (cab only)
  • UNDERCARRIAGE
    • Rubber Belt (400 mm/15.7 in)
    • Dozer Straight Blade
    • Dozer Blade Float
    • Tie Downs on Track Frame
  • BOOM, STICK AND LINKAGES
    • One Piece Boom (2716 mm/106.9 in)
    • Standard Stick (1351 mm/53.2 in)
    • Front Shovel Capable – Pin-On
    • Thumb Ready
    • Certified Lifting Eye
  • ELECTRICAL
    • 12 Volt Battery
    • Software (machine and monitor)
    • Maintenance Free Battery
    • Battery Disconnect
    • 12 Volt Power Socket
    • Travel Alarm (optional in some regions)
  • GUARDING
    • ROPS ISO 12117-2:2008
    • Top Guard ISO 10262:1998 (Level I)
  • OTHER
    • Eco Drain
  • TECHNOLOGY
    • Product Link Elite™ (regulations apply)

Optional Equipment

  • HYDRAULICS
    • Third Auxiliary
  • OPERATOR ENVIRONMENT
    • Cab with Air Conditioning
    • Cab with Heater
    • No Travel Pedals and Hand Levers (optional in some regions)
    • Machine Security – Push to Start with Key Fob/Pass Code
    • Seat Belt Reminder System
    • Next Generation Advanced Monitor
      – Touch Screen
      – Site Reference System
      – High Definition Camera Capable (IP68 and IP69K)
      – Numeric Security Code
  • UNDERCARRIAGE
    • Steel Track (400 mm/15.7 in)
    • Steel Track with Rubber Pads
    • Angle Blade
  • BOOM, STICK AND LINKAGES
    • Long Stick (1601 mm/63.0 in)
    • Front Shovel Capable – Dual Lock Manual Coupler
    • Front Shovel Capable – Hydraulic Coupler
    • Attachments including Couplers, Thumbs, Buckets, Augers and Hammers
    • 2nd Auxiliary Hydraulic Lines
    • Bucket Divert Lines
    • Boom Lowering Check Valve
    • Stick Lowering Check Valve
    • Hydraulic Quick Coupler Lines
  • GUARDING
    • Top Guard ISO 10262:1998 (Level II) (Cab)
    • Front Guard (Mesh) ISO 10262:1998 (Level I) (Cab)
    • Front Guard (Mesh) ISO 10262:1998 (Level I) (Canopy
    • Front Guard (Heavy Duty) ISO 10262:1998 (Level II) (Cab)
    • Front Guard (Heavy Duty) ISO 10262:1998 (Level II) (Canopy)
  • OTHER
    • Bio Oil Capable
    • Water Jacket Heater
    • Counterweight (242 kg/534 lb)
    • Refueling Pump
  • TECHNOLOGY
    • Ease of Use Indicate
    • Ease of Use E-Fence
    • Ease of Use Laser Catcher
    • Cat Grade with Advanced 2D
    • Cat Grade with 3D