New CAT Equipment

309 CR VAB Mini Hydraulic Excavator

Mini Excavators Inspired by Our Customers

The Cat® 309 CR Variable Angle Boom (VAB) Mini Excavator delivers maximum power and performance in a mini size to help you work in a wide range of applications. The Variable Angle Boom provides the maximum in linkage flexibility in tight applications.The 309 CR also features high flow hydraulics to handle power hungry attachments such as mulchers and brushcutters.

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    Benefits

    4 Industry First Features

    Cat Exclusives in a Mini Excavator

    Up to 10% Lower Total Ownership Costs

    with improved fuel efficiency and longer service intervals

    Up to 20% More Performance

    with customizable operator settings and improvements in lift, swing, travel and multifunction

    Learn more about the 309 CR VAB Mini Hydraulic Excavator

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    • 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.
    • Blade
      Height
      17 in
      Width - Standard
      97.2 in
      Width - Wide
      103.9 in
    • Certification - Cab
      Roll Over Protective Structure (ROPS)
      ISO 12117-2:2008
      Tip Over Protective Structure (TOPS)
      ISO 12117:1997
      Top Guard
      ISO 10262:1998 (Level II)
    • Dimensions - VAB In
      Boom Swing Left
      24 in
      Boom Swing Right
      37 in
      Boom in Reach
      122.8 in
      Cab Height
      100 in
      Dig Depth
      150.2 in
      Ground Clearance
      14 in
      Maximum Blade Depth
      19.1 in
      Maximum Blade Height
      16.1 in
      Maximum Dig Height
      205.5 in
      Maximum Dump Clearance
      135.8 in
      Maximum Reach
      256.5 in
      Maximum Reach at Ground Level
      248 in
      Overall Shipping Length
      255.7 in
      Overall Track Width
      97.2 in
      Overall Undercarriage Length
      126 in
      Stick Length
      71.7 in
      Swing Bearing Height
      29.8 in
      Tail Swing with Counterweight
      62.4 in
      Tail Swing without Counterweight
      57.1 in
      Track Belt/Shoe Width
      17.7 in
      Transport Height
      97.4 in
      Vertical Wall
      99.2 in
    • Dimensions - VAB Out
      Boom Swing Left
      24 in
      Boom Swing Right
      37 in
      Boom in Reach
      106.7 in
      Cab Height
      100 in
      Dig Depth
      136.2 in
      Ground Clearance
      14 in
      Maximum Blade Depth
      19.1 in
      Maximum Blade Height
      16.1 in
      Maximum Dig Height
      322 in
      Maximum Dump Clearance
      247.4 in
      Maximum Reach
      310.4 in
      Maximum Reach at Ground Level
      303.7 in
      Overall Shipping Length
      255.7 in
      Overall Track Width
      97.2 in
      Overall Undercarriage Length
      126 in
      Stick Length
      71.7 in
      Swing Bearing Height
      29.8 in
      Tail Swing with Counterweight
      62.4 in
      Tail Swing without Counterweight
      57.1 in
      Track Belt/Shoe Width
      17.7 in
      Transport Height
      97.4 in
      Vertical Wall
      146.7 in
    • Engine
      Bore
      3.7 in
      Displacement
      203 in³
      Engine Model - U.S. EPA Tier 4 Final/EU Stage V
      Cat C3.3B
      Gross Power - SAE J1995
      74.3 HP
      Net Power
      69.5 HP
      Net Power - 2,200 rpm - ISO 9249:2007, 80/1269/EEC
      69.5 HP
      Note
      Net power advertised is the power available at the flywheel when the engine is equipped with air cleaner, exhaust system and fan.
      Stroke
      4.7 in
    • Hydraulic System
      Digging Force - Bucket
      13946 lbf
      Digging Force - Stick - Standard
      9509 lbf
      Maximum Auxiliary Circuit - Primary (High Flow) - Flow at Pump
      37 gal/min
      Maximum Auxiliary Circuit - Primary (High Flow) - Pressure at Pump
      4134 psi
      Maximum Auxiliary Circuit - Primary - Flow at Pump
      35 gal/min
      Maximum Auxiliary Circuit - Primary - Pressure at Pump
      4134 psi
      Maximum Auxiliary Circuit - Secondary - Flow at Pump
      9 gal/min
      Maximum Auxiliary Circuit - Secondary - Pressure at Pump
      4134 psi
      Note
      Flow and pressure are not combinable. Under load, as flow rises pressure goes down.
      Operating Pressure - Equipment
      4134 psi
      Operating Pressure - Swing
      3626 psi
      Operating Pressure - Travel
      4134 psi
      Pump Flow at 2,400 rpm
      62 gal/min
      Type
      Load Sensing Hydraulics with Variable Displacement Piston Pump
    • Service Refill Capacities
      Cooling System
      2.6 gal (US)
      Engine Oil
      3 gal (US)
      Fuel Tank
      39 gal (US)
      Hydraulic System
      29 gal (US)
      Hydraulic Tank
      14 gal (US)
    • Sound
      Average Exterior Sound Pressure (ISO 6395:2008)
      99 dB(A)
      Note
      European Union Directive "2000/14/EC"
      Operator Sound Pressure (ISO 6396:2008)
      72 dB(A)
    • Specifications
      Note
      The 309 CR VAB specifications are based on a machine configured with a Long (L) Undercarriage. For specifications representing a 309 CR VAB with a Standard Undercarriage, please refer to the 308 CR information.
    • Sustainability
      Recyclability
      96%
    • Swing System
      Boom Swing - Left
      60 degrees
      Boom Swing - Right
      50 degrees
      Machine Swing Speed
      10.6 r/min
    • Travel System
      Gradeability - Maximum
      30 degrees
      Ground Pressure - Maximum Weight
      5.5 psi
      Ground Pressure - Minimum Weight
      5.1 psi
      Maximum Traction Force - High Speed
      6497 lbf
      Maximum Traction Force - Low Speed
      19064 lbf
      Travel Speed - High
      3.1 mile/h
      Travel Speed - Low
      1.6 mile/h
    • Weight Increase from Minimum Configuration
      Counterweight
      552 lb
      Standard Stick
      77 lb
      Steel Tracks with Pads
      728 lb
    • Weights
      Maximum Operating Weight*
      21477 lb
      Minimum Operating Weight*
      20121 lb
      Note (1)
      *Minimum Weight is based on rubber 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, standard stick, blade and no bucket.
      Operating Weight
      21477 lb
    ENGINE
    • Cat C3.3 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)
    • Ecology Drain
    HYDRAULICS
    • Smart Tech Electronic Pump
    • Electronic Variable Displacement Piston Pump
    • Load Sensing/Flow Sharing Hydraulics
    • Power On Demand
    • Hydraulic Temperature Monitoring
    • Certified Accumulator
    • HYDO Advanced Hydraulic Oil
    • Dedicated Auxiliary Hydraulic Pump
    OPERATOR ENVIRONMENT
    • Top Guard ISO 10262 1998 Level I
    • ROPS ISO 12117-2:2008
    • Sealed and Pressurized Cab
    • 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
    • Hydraulic Track Adjusters
    • Tie Down Eyes on Track Frame
    • Dozer Blade
    • Dozer Float
    • Bolt-on, Reversible Wear Edge
    BOOM, STICK AND LINKAGES
    • Variable Angle Boom
    • 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
    • 90 Ampere Alternator
    • Circuit Breaker
    • 850 CCA Maintenance Free Battery
    • Battery Disconnect
    • Ignition Key Stop Switch
    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
    • Attachments including Buckets, Augers and Hammers
    • 2nd Auxiliary Hydraulic Lines
    • Boom Lowering Check Valve
    • Stick Lowering Check Valve
    • Certified Lifting Eye
    ELECTRICAL
    • Product Link Elite (regulations apply)
    • Travel Alarm
    • Rearview Camera
    • Rotating Beacon
    GUARDING
    • Mesh Front Guard ISO 10262 1998 Level I
    • Heavy Duty Front Guard ISO 10262 1998 Level II
    • Overhead Cab Guard ISO 10262 1998 Level II
    • Polycarbonate Front Window EN356 P5A
    • Track Guards
    OTHER
    • Additional Counterweight
    • Water Jacket Heater
    • Refueling Pump