309 CR VAB (Long Undercarriage)

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.The 309 CR also features high flow hydraulics to handle power hungry attachments such as mulchers and brushcutters.

ALL DAY COMFORT

  • A sealed and pressurized cab is equipped with an improved air conditioning system, adjustable wrist rests and a suspension seat to help keep you working comfortably all day long.

EASY TO OPERATE

  • Controls are easy to use and the intuitive Next Generation Monitor provides customizable machine operator preferences and easy to read machine information.

STICK STEER TRAVEL MODE

  • Moving around the job site is even easier with the Cat Stick Steer option. Easily switch from traditional travel controls with levers and pedals to joystick controls with a push of a button. The benefit of less effort and improved control is in your hands!

BIG PERFORMANCE IN A MINI DESIGN

  • Increased lifting, swinging, travel and multi-functioning performance helps you get the job done more efficiently, dig-to-blade allows easy clean up and long undercarriage provides improved stability.

SAFETY ON THE JOB SITE

  • Your safety is our top priority. The Cat Mini Excavator is designed to help keep you safe on the job. A back-up camera, courtesy work lights and a fluorescent retractable seat belt are just a few of the safety features we’ve built into the machine.

SIMPLE SERVICE FOR LESS DOWNTIME

  • Maintenance is quick and easy on the Cat Mini Excavator. Routine check points are easy to access at ground level with grouped service points and robust service panels.

LOWER OPERATING COSTS

  • Equipped with features such as auto idle, auto engine shutdown, and efficient hydraulics with a variable displacement pump, the Cat Mini Excavator was designed with reducing your operating costs in mind.

UNMATCHED DEALER SUPPORT

  • Your Cat dealer is here to help you reach your business goals. From providing equipment solutions to operator training to service needs and beyond, your Cat dealer is ready to help.

HIGH FLOW

  • Dedicated auxiliary hydraulic pump is ideal for running power-hungry attachments while allowing the machine to simultaneously travel and multifunction. This feature allows consistent pressure to the auxiliary lines with no loss of hydraulic power keeping your attachment running at full power maintaining optimal productivity.

SUSTAINABILITY

  • The Cat® C3.3B engine meets U.S. EPA Tier 4 Final, EU Stage V, and Japan 2014 emission standards.
  • Cat diesel engines are required to use ULSD (ultra-low sulfur diesel fuel with 15 ppm of sulfur or less) or ULSD blended with the following lower-carbon intensity fuels up to: 20% biodiesel FAME (fatty acid methyl ester) * or 100% renewable diesel, HVO (hydrotreated vegetable oil) and GTL (gas-to-liquid) fuels. Refer to guidelines for successful application. Please consult your Cat dealer or “Caterpillar Machine Fluids Recommendations” (SEBU6250) for details.
  • Auto Idle helps reduce unnecessary fuel burn and greenhouse gas emissions by allowing the engine to automatically go into idle mode when the machine is not working.
  • Engine Idle Shutdown Timer reduces fuel burn, greenhouse gas emissions and unnecessary idle time by shutting down the machine after a pre-set idling period.
  • Cruise control helps you maintain a constant speed as you travel across your jobsite saving fuel and reducing greenhouse gas emissions.
  • The Cat® Seat Belt Reminder provides audible and visual warnings to remind operators to buckle up during machine operation. The easy-to-install system is compatible with all equipment brands to help ensure operator safety.
  • Extended maintenance intervals not only reduce downtime but decrease the amount of fluid and filters that are replaced over the life of the machine.
  • Remote Flash minimizes downtime and maintenance time while keeping your asset running with maximum efficiency. Alerts for machine updates are sent virtually from your Cat dealer and updates can be deployed without a dealer technician needing to be onsite.(if equipped)
  • Remote Troubleshoot decreases maintenance time and keeps your machine running with maximum efficiency by allowing your Cat dealer to virtually test the machine while working. Once a problem is identified, a technician can fix it the first time, saving time and money.(if equipped)
  • Cat Grade with advanced 2D and 3D technologies combine advanced guidance with optional automated machine control helping you reach grading targets while reducing fuel burn and greenhouse gas emissions by improving efficiency, job site productivity, and accuracy. (if equipped).

*Engines with no aftertreatment devices can use higher blends, up to 100% biodiesel. (for use of blends higher than 20% biodiesel, consult your Cat dealer)

Virtual Tours

Standard Equipment

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

Additional information

Offering Type

Engine - Net Power

51.8 kW ( 69.5 HP )

Engine - Displacement

3.33 l ( 203 in³ )

Engine - Stroke

120 mm ( 4.7 in )

Engine - Bore

94 mm ( 3.7 in )

Weights - Operating Weight

9740 kg ( 21477 lb )

Weight Increase from Minimum Configuration - Steel Tracks with Pads

330 kg ( 728 lb )

Weight Increase from Minimum Configuration - Counterweight

250 kg ( 552 lb )

Travel System - Ground Pressure - Minimum Weight

35.4 kPa ( 5.1 psi )

Travel System - Travel Speed - High

4.9 km/h ( 3.1 mile/h )

Travel System - Maximum Traction Force - High Speed

28.9 kN ( 6497 lbf )

Travel System - Travel Speed - Low

2.6 km/h ( 1.6 mile/h )

Travel System - Ground Pressure - Maximum Weight

37.8 kPa ( 5.5 psi )

Travel System - Maximum Traction Force - Low Speed

84.8 kN ( 19064 lbf )

Travel System - Gradeability - Maximum

30 degrees

Service Refill Capacities - Fuel Tank

147 l ( 39 gal (US) )

Service Refill Capacities - Hydraulic System

110 l ( 29 gal (US) )

Service Refill Capacities - Engine Oil

11.2 l ( 3 gal (US) )

Service Refill Capacities - Cooling System

10 l ( 2.6 gal (US) )

Service Refill Capacities - Hydraulic Tank

53 l ( 14 gal (US) )

Hydraulic System - Operating Pressure - Travel

285 bar ( 4134 psi )

Hydraulic System - Type

Load Sensing Hydraulics with Variable Displacement Piston Pump

Hydraulic System - Digging Force - Stick - Standard

42.3 kN ( 9509 lbf )

Hydraulic System - Digging Force - Bucket

62 kN ( 13946 lbf )

Hydraulic System - Pump Flow at 2,400 rpm

233 l/min ( 62 gal/min )

Hydraulic System - Operating Pressure - Swing

250 bar ( 3626 psi )

Hydraulic System - Operating Pressure - Equipment

285 bar ( 4134 psi )

Hydraulic System - Maximum Auxiliary Circuit - Secondary - Flow at Pump

33 l/min ( 9 gal/min )

Hydraulic System - Maximum Auxiliary Circuit - Secondary - Pressure at Pump

285 bar ( 4134 psi )

Hydraulic System - Maximum Auxiliary Circuit - Primary - Flow at Pump

131 l/min ( 35 gal/min )

Hydraulic System - Maximum Auxiliary Circuit - Primary - Pressure at Pump

285 bar ( 4134 psi )

Swing System - Machine Swing Speed

10.6 r/min ( 10.6 r/min )

Swing System - Boom Swing - Left

60 degrees

Swing System - Boom Swing - Right

50 degrees

Blade - Height

431 mm ( 17 in )

Blade - Width - Wide

2640 mm ( 103.9 in )

Blade - Width - Standard

2470 mm ( 97.2 in )

Certification - Cab - Top Guard

ISO 10262:1998 (Level II)

Certification - Cab - Roll Over Protective Structure (ROPS)

ISO 12117-2:2008

Certification - Cab - Tip Over Protective Structure (TOPS)

ISO 12117:1997

Average Exterior Sound Pressure (ISO 6395:2008)

99 dB(A) ( 99 dB(A) )

Operator Sound Pressure (ISO 6396:2008)

72 dB(A) ( 72 dB(A) )

Dimensions - VAB In - Dig Depth

3815 mm ( 150.2 in )

Dimensions - VAB In - Cab Height

2541 mm ( 100 in )

Dimensions - VAB In - Maximum Blade Depth

484 mm ( 19.1 in )

Dimensions - VAB In - Maximum Blade Height

408 mm ( 16.1 in )

Dimensions - VAB In - Stick Length

1820 mm ( 71.7 in )

Dimensions - VAB In - Maximum Reach

6515 mm ( 256.5 in )

Dimensions - VAB In - Tail Swing without Counterweight

1450 mm ( 57.1 in )

Dimensions - VAB In - Vertical Wall

2520 mm ( 99.2 in )

Dimensions - VAB In - Swing Bearing Height

756 mm ( 29.8 in )

Dimensions - VAB In - Track Belt/Shoe Width

450 mm ( 17.7 in )

Dimensions - VAB In - Boom Swing Right

935 mm ( 37 in )

Dimensions - VAB In - Overall Track Width

2470 mm ( 97.2 in )

Dimensions - VAB In - Overall Shipping Length

6495 mm ( 255.7 in )

Dimensions - VAB In - Maximum Dump Clearance

3450 mm ( 135.8 in )

Dimensions - VAB In - Boom in Reach

3120 mm ( 122.8 in )

Dimensions - VAB In - Maximum Reach at Ground Level

6300 mm ( 248 in )

Dimensions - VAB In - Transport Height

2475 mm ( 97.4 in )

Dimensions - VAB In - Overall Undercarriage Length

3200 mm ( 126 in )

Dimensions - VAB In - Ground Clearance

356 mm ( 14 in )

Dimensions - VAB In - Tail Swing with Counterweight

1585 mm ( 62.4 in )

Dimensions - VAB In - Maximum Dig Height

5220 mm ( 205.5 in )

Dimensions - VAB In - Boom Swing Left

605 mm ( 24 in )

Dimensions - VAB Out - Ground Clearance

356 mm ( 14 in )

Dimensions - VAB Out - Cab Height

2541 mm ( 100 in )

Dimensions - VAB Out - Boom in Reach

2710 mm ( 106.7 in )

Dimensions - VAB Out - Vertical Wall

3725 mm ( 146.7 in )

Dimensions - VAB Out - Swing Bearing Height

756 mm ( 29.8 in )

Dimensions - VAB Out - Maximum Dump Clearance

6285 mm ( 247.4 in )

Dimensions - VAB Out - Overall Undercarriage Length

3200 mm ( 126 in )

Dimensions - VAB Out - Maximum Reach at Ground Level

7715 mm ( 303.7 in )

Dimensions - VAB Out - Tail Swing without Counterweight

1450 mm ( 57.1 in )

Dimensions - VAB Out - Maximum Reach

7885 mm ( 310.4 in )

Dimensions - VAB Out - Track Belt/Shoe Width

450 mm ( 17.7 in )

Dimensions - VAB Out - Overall Shipping Length

6495 mm ( 255.7 in )

Dimensions - VAB Out - Maximum Blade Depth

484 mm ( 19.1 in )

Dimensions - VAB Out - Maximum Dig Height

8180 mm ( 322 in )

Dimensions - VAB Out - Overall Track Width

2470 mm ( 97.2 in )

Dimensions - VAB Out - Tail Swing with Counterweight

1585 mm ( 62.4 in )

Dimensions - VAB Out - Stick Length

1820 mm ( 71.7 in )

Dimensions - VAB Out - Maximum Blade Height

408 mm ( 16.1 in )

Dimensions - VAB Out - Boom Swing Right

935 mm ( 37 in )

Dimensions - VAB Out - Boom Swing Left

605 mm ( 24 in )

Dimensions - VAB Out - Transport Height

2475 mm ( 97.4 in )

Dimensions - VAB Out - Dig Depth

3460 mm ( 136.2 in )

Engine - Gross Power - SAE J1995

55.4 kW ( 74.3 HP )

Engine - Net Power - 2,200 rpm - ISO 9249:2007, 80/1269/EEC

51.8 kW ( 69.5 HP )

Engine Model - U.S. EPA Tier 4 Final/EU Stage V

Cat C3.3B

Sustainability - Recyclability

96%

Weights - Note (1)

*Minimum Weight is based on rubber tracks, no counterweight, operator, full fuel tank, standard stick, blade and no bucket.

Weights - Note (2)

**Maximum Weight is based on steel tracks with rubber pads, counterweight, operator, full fuel tank, standard stick, blade and no bucket.

Engine - Note

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

Hydraulic System - Note

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

Sound - Note

European Union Directive "2000/14/EC"

Weights - Maximum Operating Weight*

9740 kg ( 21477 lb )

Weight Increase from Minimum Configuration - Standard Stick

35 kg ( 77 lb )

Weights - Minimum Operating Weight*

9125 kg ( 20121 lb )

Hydraulic System - Maximum Auxiliary Circuit - Primary (High Flow) - Pressure at Pump

285 bar ( 4134 psi )

Hydraulic System - Maximum Auxiliary Circuit - Primary (High Flow) - Flow at Pump

140 l/min ( 37 gal/min )

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