309 CR VAB

Heavy Equipment

309 CR VAB

Net Power
70.3 HP / 52.4 kW
Operating Weight
20731 lb / 9403 kg
Height
17 in / 431 mm

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.

Engine
Engine Model Cat C3.3B
Net Power 70.3 HP / 52.4 kW
Bore 3.7 in / 94 mm
Displacement 203 in³ / 3.33 l
Gross Power - ISO 14396 74.3 HP / 55.4 kW
Rated Net Power - 2,200 rpm - EU Stage V - ISO 9249/EEC 80/1269 71.5 HP / 53.3 kW
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 mm
Weights
Operating Weight 20731 lb / 9403 kg
Maximum Operating Weight with Cab* 21054 lb / 9550 kg
Maximum Operating Weight with Cab** 20731 lb / 9403 kg
Minimum Operating Weight with Cab* 19304 lb / 8756 kg
Note *Maximum Weight is based on steel tracks with rubber pads, counterweight, operator, full fuel tank, standard stick, blade and no bucket.
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.
Blade
Height 17 in / 431 mm
Width - Standard 97.2 in / 2470 mm
Width - Wide 103.9 in / 2640 mm
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 - Long Stick
Boom In Reach 126.6 in / 3215 mm
Boom Swing - Left 24 in / 604 mm
Boom Swing - Right 37 in / 935 mm
Cab Height 99 in / 2514 mm
Dig Depth 183.1 in / 4650 mm
Ground Clearance 13.5 in / 343 mm
Maximum Blade Depth 26.9 in / 684 mm
Maximum Blade Height 13.5 in / 342 mm
Maximum Dig Height 276.8 in / 7032 mm
Maximum Dump Clearance 199.4 in / 5065 mm
Maximum Reach 300.7 in / 7637 mm
Maximum Reach - Ground Level 293.8 in / 7462 mm
O/A Shipping Length 262.3 in / 6662 mm
O/A Track Width 97.2 in / 2470 mm
O/A Undercarriage Length 126 in / 3200 mm
Stick Length 92.8 in / 2358 mm
Swing Bearing - Height 28.7 in / 729 mm
Tail Swing with Counterweight 64.8 in / 1645 mm
Tail Swing without Counterweight 57.1 in / 1450 mm
Track Belt/Shoe Width 17.7 in / 450 mm
Transport Height 99 in / 2514 mm
Vertical Wall 134.3 in / 3411 mm
Dimensions - Standard Stick
Boom In Reach 120.4 in / 3058 mm
Boom Swing - Left 24 in / 604 mm
Boom Swing - Right 37 in / 935 mm
Cab Height 99 in / 2514 mm
Dig Depth 162 in / 4115 mm
Ground Clearance 13.5 in / 343 mm
Maximum Blade Depth 26.9 in / 684 mm
Maximum Blade Height 13.5 in / 342 mm
Maximum Dig Height 264.9 in / 6729 mm
Maximum Dump Clearance 187.1 in / 4753 mm
Maximum Reach 281.1 in / 7140 mm
Maximum Reach - Ground Level 273.6 in / 6951 mm
O/A Shipping Length 259 in / 6578 mm
O/A Track Width 97.2 in / 2470 mm
O/A Undercarriage Length 126 in / 3200 mm
Stick Length 71.8 in / 1823 mm
Swing Bearing - Height 28.7 in / 729 mm
Tail Swing with Counterweight 64.8 in / 1645 mm
Tail Swing without Counterweight 57.1 in / 1450 mm
Track Belt/Shoe Width 17.7 in / 450 mm
Transport Height 97.9 in / 2487 mm
Vertical Wall 118 in / 2998 mm
Dimensions - VAB In
Boom Swing Left 24 in / 604 mm
Boom Swing Right 37 in / 935 mm
Boom in Reach 112.3 in / 2853 mm
Cab Height 99 in / 2514 mm
Dig Depth 154.8 in / 3931 mm
Ground Clearance 13.5 in / 343 mm
Maximum Blade Depth 26.9 in / 684 mm
Maximum Blade Height 13.5 in / 342 mm
Maximum Dig Height 216.3 in / 5494 mm
Maximum Dump Clearance 143.4 in / 3643 mm
Maximum Reach 260.3 in / 6612 mm
Maximum Reach at Ground Level 252.1 in / 6403 mm
Overall Shipping Length 227.2 in / 5771 mm
Overall Track Width 97.2 in / 2470 mm
Overall Undercarriage Length 126 in / 3200 mm
Stick Length 71.8 in / 1823 mm
Swing Bearing Height 31.4 in / 798 mm
Tail Swing with Counterweight 64.8 in / 1645 mm
Tail Swing without Counterweight 57.1 in / 1450 mm
Track Belt/Shoe Width 17.7 in / 450 mm
Transport Height 99.6 in / 2530 mm
Vertical Wall 133.6 in / 3394 mm
Dimensions - VAB Out
Boom Swing Left 24 in / 604 mm
Boom Swing Right 37 in / 935 mm
Boom in Reach 117.9 in / 2995 mm
Cab Height 99 in / 2514 mm
Dig Depth 136.5 in / 3468 mm
Ground Clearance 13.5 in / 343 mm
Maximum Blade Depth 26.9 in / 684 mm
Maximum Blade Height 13.5 in / 342 mm
Maximum Dig Height 321.7 in / 8171 mm
Maximum Dump Clearance 251.6 in / 6390 mm
Maximum Reach 311 in / 7900 mm
Maximum Reach at Ground Level 304.4 in / 7732 mm
Overall Shipping Length 281.8 in / 7158 mm
Overall Track Width 97.2 in / 2470 mm
Overall Undercarriage Length 126 in / 3200 mm
Stick Length 71.8 in / 1823 mm
Swing Bearing Height 31.4 in / 798 mm
Tail Swing with Counterweight 64.8 in / 1645 mm
Tail Swing without Counterweight 57.1 in / 1450 mm
Track Belt/Shoe Width 17.7 in / 450 mm
Transport Height 96.5 in / 2452 mm
Vertical Wall 138.7 in / 3524 mm
Hydraulic System
Auxiliary Circuit - Primary (High Flow) - Flow 37 gal/min / 140 l/min
Auxiliary Circuit - Primary (High Flow) - Pressure 4134 psi / 285 bar
Auxiliary Circuit - Secondary - Flow 9 gal/min / 33 l/min
Auxiliary Circuit - Secondary - Pressure 4134 psi / 285 bar
Digging Force - Bucket 13943 lb / 62 kN
Digging Force - Stick - Long 8023 lb / 35.7 kN
Digging Force - Stick - Standard 9500 lb / 42.3 kN
Operating Pressure - Equipment 4134 psi / 285 bar
Operating Pressure - Swing 3626 psi / 250 bar
Operating Pressure - Travel 4134 psi / 285 bar
Pump Flow at 2,400 rpm 62 gal/min / 233 l/min
Type Load Sensing Hydraulics with Variable Displacement Piston Pump
Service Refill Capacities
Cooling System 2.6 gal (US) / 10 l
Engine Oil 3 gal (US) / 11.2 l
Fuel Tank 39 gal (US) / 147 l
Hydraulic System 28 gal (US) / 107 l
Hydraulic Tank 14 gal (US) / 53 l
Sound
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)
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 / 40.8 kPa
Ground Pressure - Minimum Weight 6 psi / 38 kPa
Maximum Traction Force - High Speed 6497 lb / 28.9 kN
Maximum Traction Force - Low Speed 19064 lb / 84.8 kN
Travel Speed - High 3.1 mile/h / 4.9 km/h
Travel Speed - Low 1.6 mile/h / 2.6 km/h
Weight Increase from Minimum Configuration
Counterweight 552 lb / 250 kg
Long Stick 146 lb / 66 kg
Steel Tracks with Pads 728 lb / 330 kg

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)
    • Ecology Drain
  • HYDRAULICS
    • Smart Tech Electronic Pump
    • Variable Displacement Piston Pump
    • Load Sensing/Flow Sharing Hydraulics
    • Power On Demand
    • Hydraulic Temperature Monitoring
    • Certified Accumulator
    • Hydro Advanced Hydraulic Oil
    • Case Drain Line
  • OPERATOR ENVIRONMENT
    • Sealed and Pressurized Cab
    • Operator Sound Pressure 72 dB(A) ISO 6396:2008
    • 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
    • 12V Power Socket
    • Radio – Bluetooth®, USB, Auxiliary, Microphone
    • Skylight
    • Mounting Bosses for Top and Front Guards
    • ROPS – ISO 12117-2:2008
    • TOPS – ISO 12117:1997
    • Top Guard – ISO 10262:1998 (Level II)
    • 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
  • UNDERCARRIAGE
    • Greased and Lubricated Track
    • Hydraulic Track Adjusters
    • Tie Down Eyes on Track Frame
    • Dozer Blade
    • Dozer Float
    • Bolt-on, Reversible Wear Edge
    • Steel Tracks (450 mm/17.7 in wide)
  • 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)

Optional Equipment

  • OPERATOR ENVIRONMENT
    • Rain Visor
    • Air Suspension Heated Seat
  • ELECTRICAL
    • Rearview Camera
    • Rotating Beacon
  • OTHER
    • Attachments including Buckets, Augers and Hammers
    • Wide Steel Tracks (600 mm/23.6 in)
    • Wide Dozer Blade
    • 2nd Auxiliary Hydraulic Lines
    • Additional Counterweight
    • Boom and Stick Hose Burst Check Valves
    • Bucket Linkage with Lift Eye
    • Track Guides
    • Water Jacket Heater
    • Refueling Pump
    • Cab Guarding
    • Travel Alarm (standard in some regions)
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