309 CR VAB Mini Hydraulic Excavator

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Description
Technical Specifications
Benefits and Features
Equipment

The Catยฎ 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.

Engine
Net Power 70.3 HP
Engine Model Cat C3.3B
Bore 3.7 in
Displacement 203 inยณ
Gross Power - ISO 14396 74.3 HP
Rated Net Power - 2,200 rpm - EU Stage V - ISO 9249/EEC 80/1269 71.5 HP
Rated Net Power - 2,200 rpm - U.S. EPA Tier 4 Final - ISO 9249/EEC 80/1269 70.3 HP
Stroke 4.7 in
Weights
Operating Weight 20731 lb
Maximum Operating Weight with Cab* 21054 lb
Note *Maximum Weight is based on steel tracks with rubber pads, counterweight, operator, full fuel tank, standard stick, blade and no bucket.
Maximum Operating Weight with Cab** 20731 lb
Minimum Operating Weight with Cab* 19304 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.
Dimensions - VAB In
Dig Depth 154.8 in
Boom Swing Left 24 in
Boom Swing Right 37 in
Boom in Reach 112.3 in
Cab Height 99 in
Ground Clearance 13.5 in
Maximum Blade Depth 26.9 in
Maximum Blade Height 13.5 in
Maximum Dig Height 216.3 in
Maximum Dump Clearance 143.4 in
Maximum Reach 260.3 in
Maximum Reach at Ground Level 252.1 in
Overall Shipping Length 227.2 in
Overall Track Width 97.2 in
Overall Undercarriage Length 126 in
Stick Length 71.8 in
Swing Bearing Height 31.4 in
Tail Swing with Counterweight 64.8 in
Tail Swing without Counterweight 57.1 in
Track Belt/Shoe Width 17.7 in
Transport Height 99.6 in
Vertical Wall 133.6 in
Blade
Height 17 in
Width - Standard 97.2 in
Width - Wide 103.9 in
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.
Certification - Cab
Roll Over Protective Structure (ROPS) ISO 12117-2:2008
Tip Over Protective Structure (TOPS) ISO 12117:1997
Top Guard ISO 10262:1998 (Level II)
Dimensions - VAB Out
Boom Swing Left 24 in
Boom Swing Right 37 in
Boom in Reach 117.9 in
Cab Height 99 in
Dig Depth 136.5 in
Ground Clearance 13.5 in
Maximum Blade Depth 26.9 in
Maximum Blade Height 13.5 in
Maximum Dig Height 321.7 in
Maximum Dump Clearance 251.6 in
Maximum Reach 311 in
Maximum Reach at Ground Level 304.4 in
Overall Shipping Length 281.8 in
Overall Track Width 97.2 in
Overall Undercarriage Length 126 in
Stick Length 71.8 in
Swing Bearing Height 31.4 in
Tail Swing with Counterweight 64.8 in
Tail Swing without Counterweight 57.1 in
Track Belt/Shoe Width 17.7 in
Transport Height 96.5 in
Vertical Wall 138.7 in
Hydraulic System
Auxiliary Circuit - Primary (High Flow) - Flow 37 gal/min
Auxiliary Circuit - Primary (High Flow) - Pressure 4134 psi
Auxiliary Circuit - Secondary - Flow 9 gal/min
Auxiliary Circuit - Secondary - Pressure 4134 psi
Digging Force - Bucket 13943 lb
Digging Force - Stick - Standard 9500 lb
Operating Pressure - Equipment 4134 psi
Operating Pressure - Swing 3626 psi
Operating Pressure - Travel 4134 psi
Pump Flow at 2,400 rpm 62 gal/min
Type Load Sensing Hydraulics with Variable Displacement Piston Pump
Digging Force - Stick - Long 8023 lb
Service Refill Capacities
Cooling System 2.6 gal (US)
Engine Oil 3 gal (US)
Fuel Tank 39 gal (US)
Hydraulic System 28 gal (US)
Hydraulic Tank 14 gal (US)
Sound
Average Exterior Sound Pressure (ISO 6395:2008) 99 dB(A)
Note European Union Directive โ€œ2000/14/ECโ€
Operator Sound Pressure (ISO 6396:2008) 72 dB(A)
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.
Swing System
Machine Swing Speed 10.6 r/min
Travel System
Gradeability - Maximum 30 degrees
Ground Pressure - Maximum Weight 6 psi
Maximum Traction Force - High Speed 6497 lb
Maximum Traction Force - Low Speed 19064 lb
Travel Speed - High 3.1 mile/h
Travel Speed - Low 1.6 mile/h
Ground Pressure - Minimum Weight 6 psi
Weight Increase from Minimum Configuration
Counterweight 552 lb
Long Stick 146 lb
Steel Tracks with Pads 728 lb
Dimensions - Long Stick
Boom In Reach 126.6 in
Boom Swing - Left 24 in
Boom Swing - Right 37 in
Cab Height 99 in
Dig Depth 183.1 in
Ground Clearance 13.5 in
Maximum Blade Depth 26.9 in
Maximum Blade Height 13.5 in
Maximum Dig Height 276.8 in
Maximum Dump Clearance 199.4 in
Maximum Reach 300.7 in
Maximum Reach - Ground Level 293.8 in
O/A Shipping Length 262.3 in
O/A Track Width 97.2 in
O/A Undercarriage Length 126 in
Stick Length 92.8 in
Swing Bearing - Height 28.7 in
Tail Swing with Counterweight 64.8 in
Tail Swing without Counterweight 57.1 in
Track Belt/Shoe Width 17.7 in
Transport Height 99 in
Vertical Wall 134.3 in
Dimensions - Standard Stick
Boom In Reach 120.4 in
Boom Swing - Left 24 in
Boom Swing - Right 37 in
Cab Height 99 in
Dig Depth 162 in
Ground Clearance 13.5 in
Maximum Blade Depth 26.9 in
Maximum Blade Height 13.5 in
Maximum Dig Height 264.9 in
Maximum Dump Clearance 187.1 in
Maximum Reach 281.1 in
Maximum Reach - Ground Level 273.6 in
O/A Shipping Length 259 in
O/A Track Width 97.2 in
O/A Undercarriage Length 126 in
Stick Length 71.8 in
Swing Bearing - Height 28.7 in
Tail Swing with Counterweight 64.8 in
Tail Swing without Counterweight 57.1 in
Track Belt/Shoe Width 17.7 in
Transport Height 97.9 in
Vertical Wall 118 in

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 weโ€™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.

Standard Equipment:

  • Engine
    • Extended Life Coolant, โ€“37ยฐ C (โ€“35ยฐ F)
    • Ecology Drain
    • Cat C3.3B Diesel Engine (U.S. EPA Tier 4 Final/EU Stage V) โ€“ Electronic Engine, Turbo, Diesel Particulate Filter (DPF)
    • Automatic Two Speed Travel
    • Automatic Engine Shutdown
    • Radial Seal โ€“ 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 โ€“ ISO 12117-2:2008
    • Removable, Washable Floor Mat
    • Literature Holder
    • Color LCD Monitor
      โ€“ Fuel Level and Coolant Temperature Gauges
      โ€“ Maintenance and Machine Monitoring
      โ€“ Performance and Machine Adjustments
      โ€“ Numeric Security Code
      โ€“ Multiple Languages
      โ€“ Camera Ready
      โ€“ Hour Meter with Wake Up Switch
      โ€“ Jog Dial Control Interface
    • Mounting Bosses for Top and Front Guards
    • Sealed and Pressurized Cab
    • Radio โ€“ Bluetooth®, USB, Auxiliary, Microphone
    • Skylight
    • Integrated Lower Front Window
    • HVAC with Automatic Temperature Control
    • Retractable Seat Belt (75 mm/3 in)
    • TOPS โ€“ ISO 12117:1997
    • Top Guard โ€“ 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 โ€“ 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)

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)