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New Equipment

Caterpillar

309 CR Mini Hydraulic Excavator

Net Power

69.5 hp

Operating Weight

21091 lb

Dig Depth

182.8 in

Overview

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

Photos

  • 309 CR Mini Hydraulic Excavator
    309 CR Mini Hydraulic Excavator
  • 309 CR Mini Hydraulic Excavator
    309 CR Mini Hydraulic Excavator
  • 309 CR Mini Hydraulic Excavator
    309 CR Mini Hydraulic Excavator
  • 309 CR Mini Hydraulic Excavator
    309 CR Mini Hydraulic Excavator
  • Front View
    Front View
  • Top View
    Top View
  • Left View
    Left View
  • Rear View
    Rear View
  • Bottom View
    Bottom View
  • Right View
    Right View
  • 309 CR Mini Hydraulic Excavator
    309 CR Mini Hydraulic Excavator

Videos

  • See the new Cat 7-10 Ton Mini Excavators in action.
  • Learn about the features and benefits of the new Cat 7-10 Ton Mini Excavators.
  • Easy to read monitor lets you adjust machine settings to your operating preference.
  • Easily switch from traditional travel controls with levers and pedals to joystick controls with a push of a button.
  • Hear how Webb Excavating in Tennessee uses their Cat 309 CR Mini Excavator to help their business succeed.
  • Learn about the recommended Daily Maintenance and Inspection for the Cat 7 to 10 Ton Mini Excavators in this quick video.
  • Learn about the Safety Features on the Cat 7 to 10 Ton Mini Excavators in this quick video.

360° View

Exterior

Model shown represents features on all Cat® Mini Excavators except where indicated.

Interior

Model shown represents features on all Cat® Mini Excavators except where indicated.

Showroom

Virtual Product Tour

Documents

Features

ALL DAY COMFORT

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.

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

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.

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

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!

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

BIG PERFORMANCE IN A MINI DESIGN

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

BIG PERFORMANCE IN A MINI DESIGN

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

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.

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.
SAFETY ON THE JOB SITE

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.

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

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.

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

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.

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

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.

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.
SUSTAINABILITY

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)

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)

Specifications

  • Engine
    Spec Value
    Net Power 69.5 hp
    Displacement 203 in³
    Bore 3.7 in
    Stroke 4.7 in
    Gross Power - SAE J1995 74.3 hp
    Rated Net Power - 2,200 rpm - U.S. EPA Tier 4 Final/EU Stage V - ISO 9249/EEC 80/1269 69.5 hp
    Engine Model Cat C3.3B
  • Specifications
    Spec Value
    Note The 309 CR specifications are based on a machine configured with a Long (L) Undercarriage.
  • Weights
    Spec Value
    Operating Weight 21091 lb
    Maximum Operating Weight with Cab** 21091 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, counterweight, operator, full fuel tank, long stick, blade and no bucket.
    Minimum Operating Weight with Cab* 19735 lb
  • Dimensions - Long Stick
    Spec Value
    Dig Depth 182.8 in
    Maximum Dump Clearance 199.7 in
    Boom In Reach 126.6 in
    Vertical Wall 134 in
    Maximum Blade Depth 26 in
    O/A Undercarriage Length 126 in
    O/A Track Width 97.2 in
    Stick Length 92.8 in
    Maximum Blade Height 16.1 in
    Maximum Dig Height 277.1 in
    Tail Swing with Counterweight 62.4 in
    Maximum Reach 300.7 in
    Cab Height 100 in
    Ground Clearance 14 in
    Swing Bearing - Height 29.7 in
    Track Belt/Shoe Width 17.7 in
    Boom Swing - Left 23.8 in
    Boom Swing - Right 36.8 in
    Tail Swing without Counterweight 57.1 in
    Maximum Reach - Ground Level 293.7 in
    Note *Boom Height when stick is pinned in transport position with no attachments.
    Note (2) ***With blade positioned at the rear of the machine.
    Note (1) **Boom Height when stick is pinned in working position with attachments Standard Stick offers only one pin position.
    Height - Boom Transport - No Tools* 89 in
    Overall Shipping Length - with Counterweight 7052 mm (277.6 in)***
    Height - Boom Working - With Tools** 120.1 in
    Overall Shipping Length - without Counterweight 7052 mm (277.6 in)***
  • Weight Increase from Minimum Configuration
    Spec Value
    Steel Tracks with Pads 728 lb
    Long Stick 146 lb
    Counterweight 552 lb
  • Travel System
    Spec Value
    Gradeability - Maximum 30 degrees
    Ground Pressure - Minimum Weight 5 psi
    Ground Pressure - Maximum Weight 5.4 psi
    Travel Speed - High 3.1 mile/h
    Travel Speed - Low 1.6 mile/h
    Maximum Traction Force - High Speed 6497 lb
    Maximum Traction Force - Low Speed 19064 lb
  • Service Refill Capacities
    Spec Value
    Engine Oil 3 gal (US)
    Fuel Tank 39 gal (US)
    Hydraulic System 29 gal (US)
    Cooling System 2.6 gal (US)
    Hydraulic Tank 14 gal (US)
  • Hydraulic System
    Spec Value
    Type Load Sensing Hydraulics with Variable Displacement Piston Pump
    Operating Pressure - Swing 3626 psi
    Digging Force - Stick - Standard 9500 lb
    Digging Force - Stick - Long 8023 lb
    Operating Pressure - Travel 4134 psi
    Pump Flow at 2,400 rpm 62 gal/min
    Digging Force - Bucket 13943 lb
    Operating Pressure - Equipment 4134 psi
    Note Flow and pressure are not combinable. Under load, as flow rises pressure goes down.
    Maximum Auxiliary Circuit - Secondary - Flow at Pump 9 gal/min
    Maximum Auxiliary Circuit - Primary - Pressure at Pump 4134 psi
    Maximum Auxiliary Circuit - Primary - Flow at Pump 35 gal/min
    Maximum Auxiliary Circuit - Secondary - Pressure at Pump 4134 psi
    Maximum Auxiliary Circuit - High Flow - Pressure at Pump 4134 lbf/in
    Maximum Auxiliary Circuit - High Flow - Flow at Pump 37 gal/min
  • Swing System
    Spec Value
    Machine Swing Speed 10.6 r/min
    Boom Swing - Right 50 degrees
    Boom Swing - Left 60 degrees
  • Blade
    Spec Value
    Height 17 in
    Width - Wide 104 in
    Width - Standard 97 in
  • Certification - Cab
    Spec Value
    Roll Over Protective Structure (ROPS) ISO 12117-2:2008
    Top Guard ISO 10262:1998 (Level I)
    Tip Over Protective Structure (TOPS) ISO 12117:1997
  • Sound
    Spec Value
    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)
  • Dimensions - Standard Stick
    Spec Value
    Boom Swing - Right 36.8 in
    Maximum Dump Clearance 187.4 in
    Tail Swing without Counterweight 57.1 in
    Maximum Reach - Ground Level 273.6 in
    O/A Undercarriage Length 126 in
    Cab Height 100 in
    Swing Bearing - Height 29.7 in
    Maximum Dig Height 265.2 in
    Track Belt/Shoe Width 17.7 in
    O/A Track Width 97.2 in
    Ground Clearance 14 in
    Maximum Reach 281.1 in
    Tail Swing with Counterweight 62.4 in
    Boom In Reach 120.4 in
    Vertical Wall 117.8 in
    Dig Depth 161.7 in
    Stick Length 71.8 in
    Boom Swing - Left 23.8 in
    Maximum Blade Height 16.1 in
    Maximum Blade Depth 26 in
    Note *Boom Height when stick is pinned in transport position with no attachments.
    Overall Shipping Length - without Counterweight 266.7 in
    Overall Shipping Length - with Counterweight 266.7 in
    Note (2) ***With blade positioned at the rear of the machine.
    Note (1) **Boom Height when stick is pinned in working position with attachments Standard Stick offers only one pin position.
    Height - Boom Transport - No Tools* 95.7 in
    Height - Boom Working - With Tools** 104.7 in
  • Air Conditioning System
    Spec Value
    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.
  • Sustainability
    Spec Value
    Recyclability 96%

Standard 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
  • 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
  • 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

Optional Equipment

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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