Menu

309 CR VAB

Select Units

Overview

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.

Engine

  • Net Power 70.3 HP 52.4 kW
  • Engine Model Cat C3.3B Cat C3.3B
  • Rated Net Power - 2,200 rpm - EU Stage V - ISO 9249/EEC 80/1269 71.5 HP 53.3 kW
  • Gross Power - ISO 14396 74.3 HP 55.4 kW
  • Displacement 203.0 in³ 3.33 l
  • Rated Net Power - 2,200 rpm - U.S. EPA Tier 4 Final - ISO 9249/EEC 80/1269 70.3 HP 52.4 kW
  • Stroke 4.7 in 120.0 mm
  • Bore 3.7 in 94.0 mm

Weights

  • Operating Weight 20731.0 lb 9403.0 kg
  • Note (1) *Minimum Weight is based on steel tracks, no counterweight, operator, full fuel tank, standard stick, blade and no bucket. *Minimum Weight is based on steel tracks, no counterweight, operator, full fuel tank, standard stick, blade and no bucket.
  • Maximum Operating Weight with Cab* 21054.0 lb 9550.0 kg
  • Maximum Operating Weight with Cab** 20731.0 lb 9403.0 kg
  • Minimum Operating Weight with Cab* 19304.0 lb 8756.0 kg
  • Note *Maximum Weight is based on steel tracks with rubber pads, counterweight, operator, full fuel tank, standard stick, blade and no bucket. *Maximum Weight is based on steel tracks with rubber pads, 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. **Maximum Weight is based on steel tracks with rubber pads, counterweight, operator, full fuel tank, long stick, blade and no bucket.

Dimensions - VAB In

  • Dig Depth 154.8 in 3931.0 mm
  • Cab Height 99.0 in 2514.0 mm
  • Maximum Blade Depth 26.9 in 684.0 mm
  • Maximum Blade Height 13.5 in 342.0 mm
  • Stick Length 71.8 in 1823.0 mm
  • Maximum Reach 260.3 in 6612.0 mm
  • Tail Swing without Counterweight 57.1 in 1450.0 mm
  • Vertical Wall 133.6 in 3394.0 mm
  • Swing Bearing Height 31.4 in 798.0 mm
  • Track Belt/Shoe Width 17.7 in 450.0 mm
  • Boom Swing Right 37.0 in 935.0 mm
  • Overall Track Width 97.2 in 2470.0 mm
  • Overall Shipping Length 227.2 in 5771.0 mm
  • Maximum Dump Clearance 143.4 in 3643.0 mm
  • Boom in Reach 112.3 in 2853.0 mm
  • Maximum Reach at Ground Level 252.1 in 6403.0 mm
  • Transport Height 99.6 in 2530.0 mm
  • Overall Undercarriage Length 126.0 in 3200.0 mm
  • Ground Clearance 13.5 in 343.0 mm
  • Tail Swing with Counterweight 64.8 in 1645.0 mm
  • Maximum Dig Height 216.3 in 5494.0 mm
  • Boom Swing Left 24.0 in 604.0 mm

Blade

  • Height 17.0 in 431.0 mm
  • Width - Wide 103.9 in 2640.0 mm
  • Width - Standard 97.2 in 2470.0 mm

Hydraulic System

  • Operating Pressure - Travel 4134.0 psi 285.0 bar
  • Auxiliary Circuit - Secondary - Flow 9.0 gal/min 33.0 l/min
  • Auxiliary Circuit - Primary (High Flow) - Pressure 4134.0 psi 285.0 bar
  • Type Load Sensing Hydraulics with Variable Displacement Piston Pump Load Sensing Hydraulics with Variable Displacement Piston Pump
  • Digging Force - Stick - Standard 9500.0 lb 42.3 kN
  • Auxiliary Circuit - Secondary - Pressure 4134.0 psi 285.0 bar
  • Digging Force - Stick - Long 8023.0 lb 35.7 kN
  • Digging Force - Bucket 13943.0 lb 62.0 kN
  • Pump Flow at 2,400 rpm 62.0 gal/min 233.0 l/min
  • Auxiliary Circuit - Primary (High Flow) - Flow 37.0 gal/min 140.0 l/min
  • Operating Pressure - Swing 3626.0 psi 250.0 bar
  • Operating Pressure - Equipment 4134.0 psi 285.0 bar

Dimensions - Long Stick

  • Boom Swing - Right 37.0 in 935.0 mm
  • Boom Swing - Left 24.0 in 604.0 mm
  • Dig Depth 183.1 in 4650.0 mm
  • Stick Length 92.8 in 2358.0 mm
  • Maximum Reach - Ground Level 293.8 in 7462.0 mm
  • Maximum Blade Height 13.5 in 342.0 mm
  • Cab Height 99.0 in 2514.0 mm
  • Transport Height 99.0 in 2514.0 mm
  • Boom In Reach 126.6 in 3215.0 mm
  • O/A Track Width 97.2 in 2470.0 mm
  • Ground Clearance 13.5 in 343.0 mm
  • Swing Bearing - Height 28.7 in 729.0 mm
  • Tail Swing without Counterweight 57.1 in 1450.0 mm
  • Tail Swing with Counterweight 64.8 in 1645.0 mm
  • Maximum Reach 300.7 in 7637.0 mm
  • Track Belt/Shoe Width 17.7 in 450.0 mm
  • Vertical Wall 134.3 in 3411.0 mm
  • O/A Undercarriage Length 126.0 in 3200.0 mm
  • O/A Shipping Length 262.3 in 6662.0 mm
  • Maximum Dig Height 276.8 in 7032.0 mm
  • Maximum Dump Clearance 199.4 in 5065.0 mm
  • Maximum Blade Depth 26.9 in 684.0 mm

Dimensions - VAB Out

  • Ground Clearance 13.5 in 343.0 mm
  • Cab Height 99.0 in 2514.0 mm
  • Boom in Reach 117.9 in 2995.0 mm
  • Vertical Wall 138.7 in 3524.0 mm
  • Swing Bearing Height 31.4 in 798.0 mm
  • Maximum Dump Clearance 251.6 in 6390.0 mm
  • Overall Undercarriage Length 126.0 in 3200.0 mm
  • Maximum Reach at Ground Level 304.4 in 7732.0 mm
  • Tail Swing without Counterweight 57.1 in 1450.0 mm
  • Maximum Reach 311.0 in 7900.0 mm
  • Track Belt/Shoe Width 17.7 in 450.0 mm
  • Overall Shipping Length 281.8 in 7158.0 mm
  • Maximum Blade Depth 26.9 in 684.0 mm
  • Maximum Dig Height 321.7 in 8171.0 mm
  • Overall Track Width 97.2 in 2470.0 mm
  • Tail Swing with Counterweight 64.8 in 1645.0 mm
  • Stick Length 71.8 in 1823.0 mm
  • Maximum Blade Height 13.5 in 342.0 mm
  • Boom Swing Right 37.0 in 935.0 mm
  • Boom Swing Left 24.0 in 604.0 mm
  • Transport Height 96.5 in 2452.0 mm
  • Dig Depth 136.5 in 3468.0 mm

Dimensions - Standard Stick

  • Maximum Reach - Ground Level 273.6 in 6951.0 mm
  • Swing Bearing - Height 28.7 in 729.0 mm
  • Stick Length 71.8 in 1823.0 mm
  • O/A Shipping Length 259.0 in 6578.0 mm
  • Maximum Blade Height 13.5 in 342.0 mm
  • Boom In Reach 120.4 in 3058.0 mm
  • Tail Swing with Counterweight 64.8 in 1645.0 mm
  • Vertical Wall 118.0 in 2998.0 mm
  • Maximum Blade Depth 26.9 in 684.0 mm
  • Ground Clearance 13.5 in 343.0 mm
  • Maximum Reach 281.1 in 7140.0 mm
  • Transport Height 97.9 in 2487.0 mm
  • Cab Height 99.0 in 2514.0 mm
  • Boom Swing - Left 24.0 in 604.0 mm
  • O/A Track Width 97.2 in 2470.0 mm
  • Boom Swing - Right 37.0 in 935.0 mm
  • Maximum Dig Height 264.9 in 6729.0 mm
  • Tail Swing without Counterweight 57.1 in 1450.0 mm
  • Dig Depth 162.0 in 4115.0 mm
  • Maximum Dump Clearance 187.1 in 4753.0 mm
  • Track Belt/Shoe Width 17.7 in 450.0 mm
  • O/A Undercarriage Length 126.0 in 3200.0 mm

Travel System

  • Ground Pressure - Minimum Weight 6.0 psi 38.0 kPa
  • Travel Speed - High 3.1 mile/h 4.9 km/h
  • Maximum Traction Force - High Speed 6497.0 lb 28.9 kN
  • Travel Speed - Low 1.6 mile/h 2.6 km/h
  • Ground Pressure - Maximum Weight 6.0 psi 40.8 kPa
  • Maximum Traction Force - Low Speed 19064.0 lb 84.8 kN
  • Gradeability - Maximum 30 degrees 30 degrees

Service Refill Capacities

  • Fuel Tank 39.0 gal (US) 147.0 l
  • Hydraulic System 28.0 gal (US) 107.0 l
  • Engine Oil 3.0 gal (US) 11.2 l
  • Cooling System 2.6 gal (US) 10.0 l
  • Hydraulic Tank 14.0 gal (US) 53.0 l

Swing System

  • Machine Swing Speed 10.6 r/min 10.6 r/min

Weight Increase from Minimum Configuration

  • Steel Tracks with Pads 728.0 lb 330.0 kg
  • Long Stick 146.0 lb 66.0 kg
  • Counterweight 552.0 lb 250.0 kg

Specifications

  • Note The 309 CR specifications are based on a machine configured with a Long (L) Undercarriage. For specifications representing a 309 CR with a Standard Undercarriage, please refer to the 308 CR information. The 309 CR specifications are based on a machine configured with a Long (L) Undercarriage. For specifications representing a 309 CR with a Standard Undercarriage, please refer to the 308 CR information.

Certification - Cab

  • Top Guard ISO 10262:1998 (Level II) ISO 10262:1998 (Level II)
  • Roll Over Protective Structure (ROPS) ISO 12117-2:2008 ISO 12117-2:2008
  • Tip Over Protective Structure (TOPS) ISO 12117:1997 ISO 12117:1997

Sound

  • Average Exterior Sound Pressure (ISO 6395:2008) 99.0 dB(A) 99.0 dB(A)
  • Operator Sound Pressure (ISO 6396:2008) 72.0 dB(A) 72.0 dB(A)
  • Note European Union Directive “2000/14/EC” European Union Directive “2000/14/EC”

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. 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.

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, and dig-to-blade allows for easy clean up.

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.

309 CR VAB Standard Equipment

ENGINE

  • Extended Life Coolant, –37° C (–35° F)
  • Ecology Drain
  • Cat C3.3B Diesel Engine (U.S. EPA Tier 4 Final/EU Stage V) – Electronic Engine, Turbo, Diesel Particulate Filter (DPF)
  • Automatic Two Speed Travel
  • Automatic Engine Shutdown
  • Radial Seal – Double Element Air Filter
  • Automatic Swing Brake
  • Automatic Engine Idle
  • Fuel Water Separator with Indicator

HYDRAULICS

  • Case Drain Line
  • Hydraulic Temperature Monitoring
  • Hydro Advanced Hydraulic Oil
  • Certified Accumulator
  • Power On Demand
  • Variable Displacement Piston Pump
  • Load Sensing/Flow Sharing Hydraulics
  • Smart Tech Electronic Pump

OPERATOR ENVIRONMENT

  • Rear Window Emergency Exit
  • Assisted Front Window Overhead Storage
  • 12V Power Socket
  • Travel Pedals and Hand Levers
  • Travel Cruise Control
  • LED Interior Light
  • Coat Hook
  • Cat Key with Passcode Option
  • Fabric, High Back, Suspension Seat
  • Stick Steer Mode
  • ROPS – ISO 12117-2:2008
  • Removable, Washable Floor Mat
  • Literature Holder
  • Color LCD Monitor
    – Fuel Level and Coolant Temperature Gauges
    – Maintenance and Machine Monitoring
    – Performance and Machine Adjustments
    – Numeric Security Code
    – Multiple Languages
    – Camera Ready
    – Hour Meter with Wake Up Switch
    – Jog Dial Control Interface
  • Mounting Bosses for Top and Front Guards
  • Sealed and Pressurized Cab
  • Radio – Bluetooth®, USB, Auxiliary, Microphone
  • Skylight
  • Integrated Lower Front Window
  • HVAC with Automatic Temperature Control
  • Retractable Seat Belt (75 mm/3 in)
  • TOPS – ISO 12117:1997
  • Top Guard – ISO 10262:1998 (Level II)
  • Cup Holder
  • Hydraulic Lockout Controls
  • Control Pattern Changer
  • Operator Sound Pressure 72 dB(A) ISO 6396:2008
  • Molded Footrests
  • Adjustable Wrist Rests

UNDERCARRIAGE

  • Tie Down Eyes on Track Frame
  • Dozer Blade
  • Dozer Float
  • Bolt-on, Reversible Wear Edge
  • Steel Tracks (450 mm/17.7 in wide)
  • Hydraulic Track Adjusters
  • Greased and Lubricated Track

BOOM, STICK AND LINKAGES

  • Variable Angle Boom
  • Standard Stick (1823 mm/71.8 in)
  • Front Shovel Capable (Pin-On/Manual Coupler/Hydraulic Coupler – not available in all regions)
  • Thumb Ready (not available in all regions)
  • Certified Lifting Eye (not available in all regions)

ELECTRICAL

  • 12 Volt Electrical System
  • 90 Ampere Alternator
  • 850 CCA Maintenance Free Battery
  • Circuit Breaker
  • Ignition Key Stop Switch
  • Signaling/Warning Horn
  • Product Link™ Elite Lite (regulations apply)

309 CR VAB Optional Equipment

OPERATOR ENVIRONMENT

  • Air Suspension Heated Seat
  • Rain Visor

ELECTRICAL

  • Rearview Camera
  • Rotating Beacon

OTHER

  • Boom and Stick Hose Burst Check Valves
  • Bucket Linkage with Lift Eye
  • Track Guides
  • Attachments including Buckets, Augers and Hammers
  • Wide Steel Tracks (600 mm/23.6 in)
  • 2nd Auxiliary Hydraulic Lines
  • Wide Dozer Blade
  • Additional Counterweight
  • Water Jacket Heater
  • Refueling Pump
  • Cab Guarding
  • Travel Alarm (standard in some regions)

News & Events

View the latest company and product news, events and customer stories.

Promotions

View the latest offers available on a range of Cat® equipment and genuine parts.

Social Media

Connect with us to learn more about our company, products, services and customers.

Branch Locations

With branches across the UK & Ireland, you can be sure that we’re never far away.

Services

Effectively manage your equipment to reduce operating costs and improve efficiency.

Technology

Integrated technology can help you understand your equipment's output and help extend its lifespan.

Finance

Quick and easy financing with customised payment plans through Cat Financial.