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Caterpillar

309 CR VAB Mini Hydraulic Excavator

Net Power

69.5 HP

51.8 kW

Operating Weight

21477 lb

9740 kg

Dig Depth

150.2 in

3815 mm

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.

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Features

Details

Specifications

Spec Value
Note The 309 CR VAB specifications are based on a machine configured with a Long (L) Undercarriage. For specifications representing a 309 CR VAB with a Standard Undercarriage, please refer to the 308 CR information. The 309 CR VAB specifications are based on a machine configured with a Long (L) Undercarriage. For specifications representing a 309 CR VAB with a Standard Undercarriage, please refer to the 308 CR information.
Spec Value
Net Power 69.5 HP 51.8 kW
Displacement 203 in³ 3.33 l
Stroke 4.7 in 120 mm
Bore 3.7 in 94 mm
Gross Power – SAE J1995 74.3 HP 55.4 kW
Note Net power advertised is the power available at the flywheel when the engine is equipped with air cleaner, exhaust system and fan. Net power advertised is the power available at the flywheel when the engine is equipped with air cleaner, exhaust system and fan.
Net Power – 2,200 rpm – ISO 9249:2007, 80/1269/EEC 69.5 HP 51.8 kW
Engine Model – U.S. EPA Tier 4 Final/EU Stage V Cat C3.3B Cat C3.3B
Spec Value
Operating Weight 21477 lb 9740 kg
Note (1) *Minimum Weight is based on rubber tracks, no counterweight, operator, full fuel tank, standard stick, blade and no bucket. *Minimum Weight is based on rubber 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, 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.
Minimum Operating Weight* 20121 lb 9125 kg
Maximum Operating Weight* 21477 lb 9740 kg
Spec Value
Steel Tracks with Pads 728 lb 330 kg
Counterweight 552 lb 250 kg
Standard Stick 77 lb 35 kg
Spec Value
Ground Pressure – Minimum Weight 5.1 psi 35.4 kPa
Travel Speed – High 3.1 mile/h 4.9 km/h
Maximum Traction Force – High Speed 6497 lbf 28.9 kN
Travel Speed – Low 1.6 mile/h 2.6 km/h
Ground Pressure – Maximum Weight 5.5 psi 37.8 kPa
Maximum Traction Force – Low Speed 19064 lbf 84.8 kN
Gradeability – Maximum 30 degrees 30 degrees
Spec Value
Fuel Tank 39 gal (US) 147 l
Hydraulic System 29 gal (US) 110 l
Engine Oil 3 gal (US) 11.2 l
Cooling System 2.6 gal (US) 10 l
Hydraulic Tank 14 gal (US) 53 l
Spec Value
Operating Pressure – Travel 4134 psi 285 bar
Type Load Sensing Hydraulics with Variable Displacement Piston Pump Load Sensing Hydraulics with Variable Displacement Piston Pump
Digging Force – Stick – Standard 9509 lbf 42.3 kN
Digging Force – Bucket 13946 lbf 62 kN
Pump Flow at 2,400 rpm 62 gal/min 233 l/min
Operating Pressure – Swing 3626 psi 250 bar
Note Flow and pressure are not combinable. Under load, as flow rises pressure goes down. Flow and pressure are not combinable. Under load, as flow rises pressure goes down.
Operating Pressure – Equipment 4134 psi 285 bar
Maximum Auxiliary Circuit – Secondary – Flow at Pump 9 gal/min 33 l/min
Maximum Auxiliary Circuit – Secondary – Pressure at Pump 4134 psi 285 bar
Maximum Auxiliary Circuit – Primary – Flow at Pump 35 gal/min 131 l/min
Maximum Auxiliary Circuit – Primary – Pressure at Pump 4134 psi 285 bar
Maximum Auxiliary Circuit – Primary (High Flow) – Pressure at Pump 4134 psi 285 bar
Maximum Auxiliary Circuit – Primary (High Flow) – Flow at Pump 37 gal/min 140 l/min
Digging Force – Stick (Short) 9217 lbf 41 kN
Spec Value
Machine Swing Speed 10.6 r/min 10.6 r/min
Boom Swing – Left 60 degrees 60 degrees
Boom Swing – Right 50 degrees 50 degrees
Spec Value
Height 17 in 431 mm
Width – Wide 103.9 in 2640 mm
Width – Standard 97.2 in 2470 mm
Spec Value
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
Spec Value
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)
Note European Union Directive "2000/14/EC" European Union Directive "2000/14/EC"
Spec Value
Dig Depth 150.2 in 3815 mm
Cab Height 100 in 2541 mm
Maximum Blade Depth 19.1 in 484 mm
Maximum Blade Height 16.1 in 408 mm
Stick Length 71.7 in 1820 mm
Maximum Reach 256.5 in 6515 mm
Tail Swing without Counterweight 57.1 in 1450 mm
Vertical Wall 99.2 in 2520 mm
Swing Bearing Height 29.8 in 756 mm
Track Belt/Shoe Width 17.7 in 450 mm
Boom Swing Right 37 in 935 mm
Overall Track Width 97.2 in 2470 mm
Overall Shipping Length 255.7 in 6495 mm
Maximum Dump Clearance 135.8 in 3450 mm
Boom in Reach 122.8 in 3120 mm
Maximum Reach at Ground Level 248 in 6300 mm
Transport Height 97.4 in 2475 mm
Overall Undercarriage Length 126 in 3200 mm
Ground Clearance 14 in 356 mm
Tail Swing with Counterweight 62.4 in 1585 mm
Maximum Dig Height 205.5 in 5220 mm
Boom Swing Left 24 in 605 mm
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. 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.
Spec Value
Ground Clearance 14 in 356 mm
Cab Height 100 in 2541 mm
Boom in Reach 106.7 in 2710 mm
Vertical Wall 146.7 in 3725 mm
Swing Bearing Height 29.8 in 756 mm
Maximum Dump Clearance 247.4 in 6285 mm
Overall Undercarriage Length 126 in 3200 mm
Maximum Reach at Ground Level 303.7 in 7715 mm
Tail Swing without Counterweight 57.1 in 1450 mm
Maximum Reach 310.4 in 7885 mm
Track Belt/Shoe Width 17.7 in 450 mm
Overall Shipping Length 255.7 in 6495 mm
Maximum Blade Depth 19.1 in 484 mm
Maximum Dig Height 322 in 8180 mm
Overall Track Width 97.2 in 2470 mm
Tail Swing with Counterweight 62.4 in 1585 mm
Stick Length 71.7 in 1820 mm
Maximum Blade Height 16.1 in 408 mm
Boom Swing Right 37 in 935 mm
Boom Swing Left 24 in 605 mm
Transport Height 97.4 in 2475 mm
Dig Depth 136.2 in 3460 mm
Spec Value
Ground Clearance 14 in 356 mm
Maximum Reach 253.1 in 6430 mm
Transport Height 91.7 in 2330 mm
Tail Swing without Counterweight 57.1 in 1450 mm
Track Belt/Shoe Width 17.7 in 450 mm
Boom Swing Left 24 in 605 mm
Maximum Reach at Ground Level 244.5 in 6210 mm
Maximum Dump Clearance 138.2 in 3510 mm
Overall Track Width 97.2 in 2470 mm
Overall Shipping Length 255.3 in 6485 mm
Tail Swing with Counterweight 62.4 in 1585 mm
Cab Height 100 in 2541 mm
Dig Depth 145.7 in 3700 mm
Maximum Blade Height 16.1 in 408 mm
Swing Bearing Height 29.8 in 756 mm
Maximum Dig Height 208.7 in 5300 mm
Vertical Wall 95.9 in 2435 mm
Maximum Blade Depth 19.1 in 484 mm
Boom Swing Right 37 in 935 mm
Overall Undercarriage Length 126 in 3200 mm
Stick Length 65.6 in 1665 mm
Boom in Reach 122.4 in 3110 mm
Spec Value
Cab Height 100 in 2541 mm
Overall Track Width 97.2 in 2470 mm
Tail Swing with Counterweight 62.4 in 1585 mm
Maximum Reach at Ground Level 298.2 in 7575 mm
Overall Undercarriage Length 126 in 3200 mm
Boom Swing Left 24 in 605 mm
Vertical Wall 138.2 in 3510 mm
Swing Bearing Height 29.8 in 756 mm
Transport Height 91.7 in 2330 mm
Overall Shipping Length 255.3 in 6485 mm
Ground Clearance 14 in 356 mm
Maximum Reach 305.1 in 7750 mm
Boom Swing Right 37 in 935 mm
Boom in Reach 96.9 in 2460 mm
Tail Swing without Counterweight 57.1 in 1450 mm
Maximum Blade Height 16.1 in 408 mm
Dig Depth 130.1 in 3305 mm
Stick Length 65.6 in 1665 mm
Track Belt/Shoe Width 17.7 in 450 mm
Maximum Dig Height 316.7 in 8045 mm
Maximum Blade Depth 19.1 in 484 mm
Maximum Dump Clearance 242.5 in 6160 mm

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

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

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

  • Short Stick (1665 mm/65.6 in)
  • Attachments including Buckets, Augers and Hammers
  • 2nd Auxiliary Hydraulic Lines
  • Boom Lowering Check Valve
  • Stick Lowering Check Valve
  • Certified Lifting Eye

ELECTRICAL

  • Product Link Elite (regulations apply)
  • Travel Alarm
  • Rearview Camera
  • Rotating Beacon

GUARDING

  • Mesh Front Guard ISO 10262 1998 Level I
  • Heavy Duty Front Guard ISO 10262 1998 Level II
  • Overhead Cab Guard ISO 10262 1998 Level II
  • Polycarbonate Front Window EN356 P5A
  • Track Guards

OTHER

  • Additional Counterweight
  • Water Jacket Heater
  • Refueling Pump
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