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Cat Excavators:

309 CR Mini Hydraulic Excavator

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309 CR Mini Hydraulic Excavator
  • 309 CR Mini Hydraulic Excavator
  • 309 CR Mini Hydraulic Excavator
  • 309 CR Mini Hydraulic Excavator
  • Front View
  • Top View
  • Left View
  • Rear View
  • Bottom View
  • Right View
  • 309 CR Mini Hydraulic Excavator
Gross Power - SAE J1995
74.3 HP
Note
Flow and pressure are not combinable. Under load, as flow rises pressure goes down.
Net Power
69.5 HP
Operating Weight
21091 lb

The Cat® 309 CR Mini Excavator delivers maximum power and performance in a mini size to help you work in a wide range of applications.

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Product Specs

  • Engine

    • Gross Power - SAE J1995
    74.3HP
    Net Power
    69.5HP
    Engine Model
    Cat C3.3B
    Displacement
    203in³
    Bore
    3.7in
    Gross Power - ISO 14396
    74.3HP
    Stroke
    4.7in

  • Hydraulic System

    • Note
    Flow and pressure are not combinable. Under load, as flow rises pressure goes down.
    Type
    Load Sensing Hydraulics with Variable Displacement Piston Pump
    Operating Pressure - Swing
    3626psi
    Digging Force - Stick - Standard
    9500lb
    Digging Force - Stick - Long
    8023lb
    Operating Pressure - Travel
    4134psi
    Pump Flow at 2,400 rpm
    62gal/min
    Digging Force - Bucket
    13943lb
    Operating Pressure - Equipment
    4134psi

  • Weights

    • Operating Weight
    21091lb
    Note (1)
    *Minimum Weight is based on steel tracks, no counterweight, operator, full fuel tank, standard stick, blade and no bucket.
    Note (2)
    **Maximum Weight is based on steel tracks with rubber pads, counterweight, operator, full fuel tank, long stick, blade and no bucket.

  • Dimensions - Long Stick

    • Dig Depth
    182.8in
    O/A Shipping Length
    268in
    Overall Shipping Length - without Counterweight
    7052 mm (277.6 in)***
    Maximum Dump Clearance
    199.7in
    Boom In Reach
    126.6in
    Vertical Wall
    134in
    Maximum Blade Depth
    26in
    O/A Undercarriage Length
    126in
    O/A Track Width
    97.2in
    Maximum Blade Height
    16.1in
    Maximum Dig Height
    277.1in
    Maximum Reach
    300.7in
    Swing Bearing - Height
    29.7in
    Track Belt/Shoe Width
    17.7in
    Boom Swing - Left
    23.8in
    Boom Swing - Right
    36.8in
    Maximum Reach - Ground Level
    293.7in

  • Blade

    • Height
    17in

  • Dimensions - Standard Stick

    • Boom Swing - Right
    36.8in
    Maximum Dump Clearance
    187.4in
    Maximum Reach - Ground Level
    273.6in
    O/A Undercarriage Length
    126in
    Cab Height
    100in
    Swing Bearing - Height
    29.7in
    Maximum Dig Height
    265.2in
    Track Belt/Shoe Width
    17.7in
    O/A Track Width
    97.2in
    O/A Shipping Length
    265in
    Maximum Reach
    281.1in
    Boom In Reach
    120.4in
    Vertical Wall
    117.8in
    Dig Depth
    161.7in
    Boom Swing - Left
    23.8in
    Maximum Blade Height
    16.1in
    Maximum Blade Depth
    26in

  • Travel System

    • Gradeability - Maximum
    30 degrees
    Travel Speed - High
    3.1mile/h
    Travel Speed - Low
    1.6mile/h
    Maximum Traction Force - High Speed
    6497lb
    Maximum Traction Force - Low Speed
    19064lb

  • Service Refill Capacities

    • Engine Oil
    3gal (US)
    Fuel Tank
    39gal (US)
    Hydraulic System
    29gal (US)
    Cooling System
    2.6gal (US)
    Hydraulic Tank
    14gal (US)

  • Sound

    • Note
    European Union Directive "2000/14/EC"

  • Swing System

    • Machine Swing Speed
    10.6r/min
    Boom Swing - Right
    50 degrees
    Boom Swing - Left
    60 degrees

  • Air Conditioning System

    • Air Conditioning
    The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 1.0 kg of refrigerant which has a CO2 equivalent of 1.430 metric tonnes.

  • Specifications

    • Note
    The 309 CR specifications are based on a machine configured with a Long (L) Undercarriage.

Equipment

  • Engine
    • Cat C3.3B Diesel Engine (U.S. EPA Tier 4 Final/EU Stage V) – Electronic Engine, Turbo, Diesel Particulate Filter (DPF)
    • Automatic Engine Idle
    • Automatic Engine Shutdown
    • Automatic Swing Brake
    • Automatic Two Speed Travel
    • Fuel Water Separator with Indicator
    • Radial Seal – Double Element Air Filter
    • Extended Life Coolant, –37° C (–35° F)
  • Hydraulics
    • Electronic Variable Displacement Piston Pump
    • Load Sensing/Flow Sharing Hydraulics
    • Power On Demand
    • Hydraulic Temperature Monitoring
    • Certified Accumulator
    • HYDO Advanced Hydraulic Oil
    • Ecology Drain
  • Operator Environment
    • Top Guard ISO 10262 1998 Level I
    • ROPS ISO 12117-2:2008
    • Stick Steer Mode
    • Travel Cruise Control
    • Control Pattern Changer
    • Adjustable Wrist Rests
    • Molded Footrests
    • Removable, Washable Floor Mat
    • Travel Pedals and Hand Levers
    • Cat Key with Passcode Option
    • HVAC with Automatic Temperature Control
    • Hydraulic Lockout Controls
    • Integrated Lower Front Window
    • Assisted Front Window Overhead Storage
    • Rear Window Emergency Exit
    • Fabric, High Back, Suspension Seat
    • Retractable Seat Belt (75 mm/3 in)
    • Coat Hook
    • Cup Holder
    • LED Interior Light
    • Literature Holder
    • Mounting Bosses for Top and Front Guards
    • 12V Power Socket
    • Radio – Bluetooth, Auxiliary, Microphone, USB (charging only)
    • Skylight
    • Signaling/Warning Horn
    • Cab and (left side) Boom Work Lights
    • Utility Space for Mobile Phone
    • Next Generation Color LCD Monitor (IP66)
      – Jog Dial Interface
      – Fuel Level and Coolant Temperature Gauges
      – Maintenance and Machine Monitoring
      – Performance and Machine Adjustments
      – Numeric Security Code
      – Multiple Languages
      – Camera Ready (IP68 & IP69K)
      – Hour Meter with Wake Up Switch
  • Undercarriage
    • Greased and Lubricated Track
    • Tie Down Eyes on Track Frame
    • Dozer Blade
    • Dozer Float
    • Bolt-on, Reversible Wear Edge
  • Boom, Stick And Linkages
    • One Piece Boom (3400 mm/133.9 in)
    • Standard Stick (1820 mm/71.7 in)
    • Front Shovel Capable – Pin-on/Manual Coupler/Hydraulic Coupler (not available in all regions)
    • Thumb Ready (not available in all regions)
  • Electrical
    • 12 Volt Electrical System
    • 60 Ampere Alternator
    • Circuit Breaker
    • 900 CCA Maintenance Free Battery
    • Battery Disconnect
    • Ignition Key Stop Switch
    • Travel Alarm
  • Other
    • Locks on External Enclosure Doors
    • Lockable Fuel Cap
    • Beacon Socket
    • Rear Reflectors
  • Operator Environment
    • Push to Start with Bluetooth® Key
    • Air Suspension Heated Seat
    • Rain Visor
    • Next Generation Advanced Monitor (below are all included with Next Generation Advanced Monitor option)
      – Touch Screen
      – Site Reference System
      – High Definition Camera Capable (IP68 & IP69K)
      – Numeric Security Code
  • Undercarriage
    • Wide Dozer Blade
    • Steel Tracks (450 mm/17.7 in wide)
    • Wide Steel Tracks (600 mm/23.6 in)
    • Steel Track with Rubber Pads
    • Track Guides
  • Boom, Stick And Linkages
    • Long Stick (2360 mm/92.9 in)
    • Attachments including Buckets, Augers and Hammers
    • 2nd Auxiliary Hydraulic Lines with Case Drain
    • Boom Lowering Check Valve
    • Stick Lowering Check Valve
    • Certified Lifting Eye
  • Electrical
    • Product Link™ Elite (regulations apply)
    • Rearview Camera
    • Rotating Beacon
  • Guarding
    • Mesh Front Guard ISO 10262 1998 Level I
    • Heavy Duty Front Guard ISO 10262 1998 Level II
    • Top Guard ISO 10262 1998 Level II
    • Polycarbonate Front Window EN356 P5A (Cab Only)
    • Track Guards
  • Other
    • Additional Counterweight
    • Water Jacket Heater
    • Refueling Pump
    • Variable Angle Boom (refer to 309 CR VAB brochure for VAB specs and additional information)

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