New CAT Equipment

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.

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    Benefits

    4 Industry First Features

    Cat Exclusives in a Mini Excavator

    Up to 10% Lower Total Ownership Costs

    with extended service intervals, lower repair costs and easy service access

    Up to 20% More Performance

    in lifting, digging and multi-function capability

    Learn more about the 305 CR Mini Hydraulic Excavator

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    • Blade
      Angle Blade - Left
      25 degrees
      Angle Blade - Right
      25 degrees
      Angle Blade Height
      15.7 in
      Angle Blade Width
      78 in
      Straight Blade Height
      15.4 in
      Straight Blade Width
      78 in
    • 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 - Long Stick
      Boom Height - Shipping Position
      74.6 in
      Boom In Reach
      101.6 in
      Boom Swing - Left
      615 mm
      Boom Swing - Right
      34.1 °
      Dig Depth
      144.5 in
      Ground Clearance
      13.2 in
      Maximum Blade Depth
      23.4 in
      Maximum Blade Height
      15.2 in
      Maximum Dig Height
      210.8 in
      Maximum Dump Clearance
      151.4 in
      Maximum Reach
      235.8 in
      Maximum Reach - Ground Level
      229.7 in
      Note
      *Overall Shipping Length depends on blade position during shipment.
      O/A Shipping Height
      100.4 in
      O/A Undercarriage Length
      101.6 in
      Overall Shipping Length*
      210.2 in
      Stick Length
      63 in
      Swing Bearing - Height
      24.4 in
      Tail Swing with Counterweight
      47.2 in
      Tail Swing without Counterweight
      43.1 in
      Track Belt/Shoe Width
      15.7 in
      Track Width
      78 in
      Vertical Wall
      100.8 in
    • Dimensions - Standard Stick
      Boom Height - Shipping Position
      71.7 in
      Boom In Reach
      101.2 in
      Boom Swing - Left
      24.2 °
      Boom Swing - Right
      34.1 °
      Dig Depth
      134.6 in
      Ground Clearance
      13.2 in
      Maximum Blade Depth
      23.4 in
      Maximum Blade Height
      15.2 in
      Maximum Dig Height
      205.3 in
      Maximum Dump Clearance
      145.7 in
      Maximum Reach
      226.6 in
      Maximum Reach - Ground Level
      220.1 in
      Note
      *Overall Shipping Length depends on blade position during shipment.
      O/A Shipping Height
      100.4 in
      O/A Undercarriage Length
      101.6 in
      Overall Shipping Length*
      208.9 in
      Stick Length
      53.2 in
      Swing Bearing - Height
      24.4 in
      Tail Swing with Counterweight
      47.2 in
      Tail Swing without Counterweight
      43.1 in
      Track Belt/Shoe Width
      15.7 in
      Vertical Wall
      91.9 in
    • Engine
      Bore
      3.3 in
      Displacement
      101 in³
      Emissions
      The Cat® C1.7 engine meets U.S. EPA Tier 4 Final and EU Stage V emission standards.
      Engine Model
      C1.7 Turbo
      Gross Power - 2,400 rpm - SAE J1995:2014
      48.4 hp
      Net Power
      45 hp
      Net Power - 2,400 rpm - ISO 9249, 80/1269/EEC
      45 hp
      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.
      Stroke
      3.9 in
    • Hydraulic System
      Auxiliary Circuit - Primary - Flow
      21 gal/min
      Auxiliary Circuit - Primary - Pressure
      3843 psi
      Auxiliary Circuit - Secondary - Flow
      7 gal/min
      Auxiliary Circuit - Secondary - Pressure
      3843 psi
      Digging Force - Bucket
      11061 lbf
      Digging Force - Stick - Long
      5665 lbf
      Digging Force - Stick - Standard
      6362 lbf
      Note
      Flow and pressure are not combinable. Under load, as flow rises pressure goes down.
      Operating Pressure - Equipment
      3843 psi
      Operating Pressure - Swing
      2901 psi
      Operating Pressure - Travel
      3843 psi
      Pump Flow at 2,400 rpm
      35 gal/min
      Type
      Load Sensing Hydraulics with Variable Displacement Piston Pump
    • Service Refill Capacities
      Cooling System
      2.9 gal (US)
      Engine Oil
      1.6 gal (US)
      Fuel Tank
      17 gal (US)
      Hydraulic System
      20 gal (US)
      Hydraulic Tank
      16 gal (US)
    • Sound
      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.
      Operator Sound Pressure (ISO 6396:2008)
      76 dB(A)
    • Sustainability
      Recyclability
      96%
    • Swing System
      Boom Swing - Left
      72 Degrees
      Boom Swing - Right
      50 Degrees
      Machine Swing Speed
      9 r/min
    • Travel System
      Gradeability - Maximum
      30 degrees
      Ground Pressure - Maximum Weight
      4.7 psi
      Ground Pressure - Minimum Weight
      4 psi
      Maximum Traction Force - High Speed
      5553 lbf
      Maximum Traction Force - Low Speed
      11353 lbf
      Travel Speed - High
      3.1 mile/h
      Travel Speed - Low
      1.7 mile/h
    • Weight Increase from Minimum Configuration
      Angle Blade
      225 lb
      Counterweight
      534 lb
      Long Stick
      75 lb
      Steel Tracks with Pads
      827 lb
    • Weights
      Maximum Operating Weight with Cab**
      12688 lb
      Maximum Operating Weight with Canopy**
      12469 lb
      Minimum Operating Weight with Cab*
      11234 lb
      Minimum Operating Weight with Canopy*
      11016 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.
      Operating Weight
      12688 lb
    ENGINE
    • Cat® C1.7 Turbo Engine (U.S. EPA Tier 4 Final)
    • 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
    GUARDING
    • ROPS ISO 12117-2:2008
    • Top Guard ISO 10262:1998 (Level I)
    OTHER
    • Eco Drain
    OPERATOR ENVIRONMENT
    • LED Front and Rear Lights
    • LED Boom Light
    • Canopy or Cab
    • Top Guard ISO 10262:1998 Level I
    • ROPS – ISO 12117-2:2008
    • TOPS – ISO 12117:1997
    • 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
    • Machine Security – Standard Key with Pass Code
    • 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)
    • 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
    • Lock Out/Tag Out Battery Disconnect
    • 12 Volt Power Socket
    • Travel Alarm (optional in some regions)
    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
    ELECTRICAL
    • Product Link™ PL243 (regulations apply)
    • Product Link PLE643 (regulations apply)
    OTHER
    • Bio Oil Capable
    • Water Jacket Heater
    • Counterweight (242 kg/534 lb)
    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
    • Mirrors, Left, Right and Rear
    • Camera
    • Radio – Bluetooth®, Auxiliary, Microphone, USB (charging only) (Cab only)
    • Next Generation Advanced Monitor
      – Touch Screen
      – Site Reference System
      – High Definition Camera Capable (IP68 and IP69K)
      – Numeric Security Code
    • Seat Belt Reminder System
    • Cat Grade with Advanced 2D
    • Cat Grade with 3D
    GUARDING
    • Top Guard ISO 10262:1998 (Level II)
    • Front Guard (Mesh) ISO 10262:1998 (Level I)
    • Front Guard (Heavy Duty) ISO 10262:1998 (Level II)

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