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Mini Excavators

309 CR VAB Mini Hydraulic Excavator

Net Power

69 hp

Operating Weight

22,094 lb

Dig Depth

150.2 in

SPECIFICATIONS

The Cat® 308 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.

    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 0.90 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).

    Blade

    Width - Standard

    97.2 in

    Width - Wide

    103.9 in

    Height

    17 in

    Certification - Cab

    Roll Over Protective Structure (ROPS)

    ISO 12117-2:2008

    Top Guard

    ISO 10262:1998 (Level I)

    Dimensions - VAB In

    Dig Depth

    150.2 in

    Vertical Wall

    99.2 in

    Maximum Reach at Ground Level

    248 in

    Maximum Reach

    256.5 in

    Maximum Dig Height

    205.5 in

    Maximum Dump Clearance

    135.8 in

    Boom in Reach

    122.8 in

    Tail Swing with Counterweight

    62.4 in

    Tail Swing without Counterweight

    57.1 in

    Maximum Blade Height

    16.1 in

    Maximum Blade Depth

    19.1 in

    Cab Height

    100 in

    Swing Bearing Height

    29.8 in

    Overall Undercarriage Length

    126 in

    Overall Shipping Length

    255.7 in

    Boom Swing Right

    37 in

    Boom Swing Left

    24 in

    Track Belt/Shoe Width

    17.7 in

    Overall Track Width

    97.2 in

    Ground Clearance

    14 in

    Stick Length

    71.7 in

    Dimensions - VAB Out

    Dig Depth

    136.2 in

    Vertical Wall

    146.7 in

    Maximum Reach at Ground Level

    303.7 in

    Maximum Reach

    310.4 in

    Maximum Dig Height

    322 in

    Maximum Dump Clearance

    247.4 in

    Boom in Reach

    106.7 in

    Tail Swing with Counterweight

    62.4 in

    Tail Swing without Counterweight

    57.1 in

    Maximum Blade Height

    16.1 in

    Maximum Blade Depth

    19.1 in

    Cab Height

    100 in

    Swing Bearing Height

    29.8 in

    Overall Undercarriage Length

    126 in

    Overall Shipping Length

    255.7 in

    Boom Swing Right

    37 in

    Boom Swing Left

    24 in

    Track Belt/Shoe Width

    17.7 in

    Overall Track Width

    97.2 in

    Ground Clearance

    14 in

    Stick Length

    71.7 in

    Engine

    Net Power

    69 hp

    Engine Model

    Cat® C2.8 Turbo

    Net Power - 2,400 rpm - ISO 9249, 80/1269/EEC

    69 hp

    Gross Power - ISO 14396

    74.3 hp

    Bore

    3.5 in

    Stroke

    4.3 in

    Displacement

    171 in³

    Note

    Meets U.S. EPA Tier 4 Final and EU Stage V emissions standards.

    Note (1)

    Advertised power is tested per the specified standard in effect at thetime of manufacture.

    Note (2)

    Net power advertised is the power available at the flywheel when the engine is at the rated speed of 2,400 rpm and the engine is installed with the factory configured fan, air intake system, exhaust system and alternator with a minimum alternator load.

    Hydraulic System

    Type

    Load Sensing Hydraulics with Variable Displacement Piston Pump

    Pump Flow at 2,400 rpm

    62 gpm

    Operating Pressure - Equipment

    4,134 psi

    Operating Pressure - Travel

    4,134 psi

    Operating Pressure - Swing

    3,626 psi

    Maximum Auxiliary Circuit - Primary - Flow at Pump

    37 gpm

    Maximum Auxiliary Circuit - Primary - Pressure at Pump

    4,134 psi

    Maximum Auxiliary Circuit - Secondary - Flow at Pump

    gpm

    Maximum Auxiliary Circuit - Secondary - Pressure at Pump

    4,134 psi

    Digging Force - Stick - Standard

    9,509 lbf

    Digging Force - Bucket

    13,946 lbf

    Note

    Flow and pressure are not combinable. Under load, as flow rises pressure goes down.

    Service Refill Capacities

    Cooling System

    2.6 gal (US)

    Engine Oil

    2.3 gal (US)

    Fuel Tank

    39 gal (US)

    Hydraulic Tank

    14 gal (US)

    Hydraulic System

    29 gal (US)

    Sound

    Operator Sound Pressure (ISO 6396:2008)

    72 dB(A)

    Average Exterior Sound Pressure (ISO 6395:2008)

    99 dB(A)

    Note

    European Union Directive "2000/14/EC"

    Specifications

    Note

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

    Sustainability

    Recyclability

    96%

    Swing System

    Machine Swing Speed

    10 r/min

    Boom Swing - Left

    60 degrees

    Boom Swing - Right

    50 degrees

    Travel System

    Travel Speed - High

    2.9 mile/h

    Travel Speed - Low

    1.6 mile/h

    Maximum Traction Force - High Speed

    7,419 lbf

    Maximum Traction Force - Low Speed

    19,064 lbf

    Ground Pressure - Minimum Weight

    5.2 psi

    Ground Pressure - Maximum Weight

    5.6 psi

    Gradeability - Maximum

    30 degrees

    Weight Increase from Minimum Configuration

    Counterweight

    552 lb

    Counterweight (extra)

    1,103 lb

    Standard Stick

    77 lb

    Steel Tracks with Pads

    728 lb

    Weights

    Operating Weight

    22,094 lb

    Minimum Operating Weight with Standard Stick*

    20,264 lb

    Maximum Operating Weight with Standard Stick**

    22,094 lb

    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, (500 kg/1,103 lb) counterweight, operator, full fuel tank, standard stick, blade, and no bucket.

    • ENGINE
      • Cat C2.8 Turbo Diesel Engine (U.S. EPA Tier 4 Final/EU Stage V) - Electronic Engine, Turbo, Fit-For-Life Diesel Particulate Filter (DPF) and Diesel Oxidation Catalyst (DOC) Aftertreatment System
      • 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
      • Smart Tech Electronic Pump
      • Electronic Variable Displacement Piston Pump
      • Load Sensing/Flow Sharing Hydraulics
      • Dedicated Auxiliary Hydraulic Pump
      • 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
      • 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
      • Cab Mirrors (vary by region)
      • 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
      • Tie Down Eyes on Track Frame
      • Greased and Lubricated Track
      • Hydraulic Track Adjusters
      • 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
      • Lock Out/Tag Out Battery Disconnect
      • Ignition Key Stop Switch
      • Rear Camera
    • GUARDING
      • ROPS ISO 12117-2:2008
      • Top Guard ISO 10262:1998 (Level I)
    • OTHER
      • Locks on External Enclosure Doors
      • Lockable Fuel Cap
      • Beacon Socket
      • Rear Reflectors

    • HYDRAULICS
      • Third Auxiliary
    • OPERATOR ENVIRONMENT
      • Push to Start with Bluetooth® Key
      • Air Suspension Heated Seat
      • Seat Belt Reminder System
      • 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
    • TECHNOLOGY
      • Ease of Use Indicate
      • Ease of Use E-Fence
      • Ease of Use Laser Catcher
      • Cat Grade Advanced 2D
      • Cat Grade 3D
    • 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
      • Boom Lowering Check Valve
      • Stick Lowering Check Valve
      • Attachments including Buckets, Augers and Hammers
      • 2nd Auxiliary Hydraulic Lines
      • Boom Lowering Control Valve (Standard in Europe)
      • Stick Lowering Control Valve (Standard in Europe)
      • Certified Lifting Eye
    • ELECTRICAL
      • Travel Alarm
      • Rear and Side Camera
      • Rotating Beacon
    • 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)
      • Track Guards
    • OTHER
      • Counterweight (250 kg/551 lb)
      • Counterweight (500 kg/1103 lb)
      • Water Jacket Heater
      • Refueling Pump

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