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309 CR VAB Mini Hydraulic Excavator

309 CR VAB Mini Hydraulic Excavator

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.

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Net Power69.5hp




Gross Power - SAE J199574.3hp

NoteNet power advertised is the power available at the flywheel when the engine is equipped with air cleaner, exhaust system and fan.

Net Power - 2,200 rpm - ISO 9249:2007, 80/1269/EEC69.5hp

Engine Model - U.S. EPA Tier 4 Final/EU Stage VCat C3.3B

Operating Weight21477lb

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.

Minimum Operating Weight*20121lb

Maximum Operating Weight*21477lb

Dig Depth150.2in

Cab Height100in

Maximum Blade Depth19.1in

Maximum Blade Height16.1in

Stick Length71.7in

Maximum Reach256.5in

Tail Swing without Counterweight57.1in

Vertical Wall99.2in

Swing Bearing Height29.8in

Track Belt/Shoe Width17.7in

Boom Swing Right37in

Overall Track Width97.2in

Overall Shipping Length255.7in

Maximum Dump Clearance135.8in

Boom in Reach122.8in

Maximum Reach at Ground Level248in

Transport Height97.4in

Overall Undercarriage Length126in

Ground Clearance14in

Tail Swing with Counterweight62.4in

Maximum Dig Height205.5in

Boom Swing Left24in


Width - Wide103.9in

Width - Standard97.2in

NoteThe 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.

Steel Tracks with Pads728lb


Standard Stick77lb

Ground Pressure - Minimum Weight5.1psi

Travel Speed - High3.1mile/h

Maximum Traction Force - High Speed6497lbf

Travel Speed - Low1.6mile/h

Ground Pressure - Maximum Weight5.5psi

Maximum Traction Force - Low Speed19064lbf

Gradeability - Maximum30 degrees

Fuel Tank39gal (US)

Hydraulic System29gal (US)

Engine Oil3gal (US)

Cooling System2.6gal (US)

Hydraulic Tank14gal (US)

Operating Pressure - Travel4134psi

TypeLoad Sensing Hydraulics with Variable Displacement Piston Pump

Digging Force - Stick - Standard9509lbf

Digging Force - Bucket13946lbf

Pump Flow at 2,400 rpm62gal/min

Operating Pressure - Swing3626psi

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

Operating Pressure - Equipment4134psi

Maximum Auxiliary Circuit - Secondary - Flow at Pump9gal/min

Maximum Auxiliary Circuit - Secondary - Pressure at Pump4134psi

Maximum Auxiliary Circuit - Primary - Flow at Pump35gal/min

Maximum Auxiliary Circuit - Primary - Pressure at Pump4134psi

Maximum Auxiliary Circuit - Primary (High Flow) - Pressure at Pump4134psi

Maximum Auxiliary Circuit - Primary (High Flow) - Flow at Pump37gal/min

Machine Swing Speed10.6r/min

Boom Swing - Left60 degrees

Boom Swing - Right50 degrees

Top GuardISO 10262:1998 (Level II)

Roll Over Protective Structure (ROPS)ISO 12117-2:2008

Tip Over Protective Structure (TOPS)ISO 12117:1997

Average Exterior Sound Pressure (ISO 6395:2008)99dB(A)

Operator Sound Pressure (ISO 6396:2008)72dB(A)

NoteEuropean Union Directive "2000/14/EC"

Air ConditioningThe 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.

Ground Clearance14in

Cab Height100in

Boom in Reach106.7in

Vertical Wall146.7in

Swing Bearing Height29.8in

Maximum Dump Clearance247.4in

Overall Undercarriage Length126in

Maximum Reach at Ground Level303.7in

Tail Swing without Counterweight57.1in

Maximum Reach310.4in

Track Belt/Shoe Width17.7in

Overall Shipping Length255.7in

Maximum Blade Depth19.1in

Maximum Dig Height322in

Overall Track Width97.2in

Tail Swing with Counterweight62.4in

Stick Length71.7in

Maximum Blade Height16.1in

Boom Swing Right37in

Boom Swing Left24in

Transport Height97.4in

Dig Depth136.2in



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


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


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)


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


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


Greased and Lubricated Track

Hydraulic Track Adjusters

Tie Down Eyes on Track Frame

Dozer Blade

Dozer Float

Bolt-on, Reversible Wear Edge


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


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)


Attachments including Buckets, Augers and Hammers

2nd Auxiliary Hydraulic Lines

Boom Lowering Check Valve

Stick Lowering Check Valve

Certified Lifting Eye


12 Volt Electrical System

90 Ampere Alternator

Circuit Breaker

850 CCA Maintenance Free Battery

Battery Disconnect

Ignition Key Stop Switch


Product Link Elite (regulations apply)

Travel Alarm

Rearview Camera

Rotating Beacon


Locks on External Enclosure Doors

Lockable Fuel Cap

Beacon Socket

Rear Reflectors


Additional Counterweight

Water Jacket Heater

Refueling Pump


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

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