336 Excavator

  • Specs Summary
  • Net Power
    70.3 HP (52.4 kW)
  • Operating Weight
    20731 lb (9403 kg)
  • Operating Weight
  • Maximum Digging Depth

309 CR VAB Mini Hydraulic Excavator

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.
  • Dig Depth 154.8 in (3931 mm)
  • Height 17 in (431 mm)
  • Cab Height 99 in (2514 mm)
  • Maximum Blade Depth 26.9 in (684 mm)
  • Boom Swing - Right 37 in (935 mm)
  • Boom Swing - Left 24 in (604 mm)
  • Ground Clearance 13.5 in (343 mm)
  • Auxiliary Circuit - Secondary - Flow 9 gal/min (33 l/min)
  • Maximum Reach - Ground Level 273.6 in (6951 mm)
  • Auxiliary Circuit - Primary (High Flow) - Pressure 4134 psi (285 bar)
  • Note (1) ( )
  • Swing Bearing - Height 28.7 in (729 mm)
  • Cab Height 99 in (2514 mm)
  • Boom in Reach 117.9 in (2995 mm)
  • Type ( )
  • Ground Pressure - Minimum Weight 6 psi (38 kPa)
  • Vertical Wall 138.7 in (3524 mm)
  • Swing Bearing Height 31.4 in (798 mm)
  • Digging Force - Stick - Standard 9500 lb (42.3 kN)
  • Rated Net Power - 2,200 rpm - EU Stage V - ISO 9249/EEC 80/1269 71.5 HP (53.3 kW)
  • Maximum Blade Height 13.5 in (342 mm)
  • Stick Length 71.8 in (1823 mm)
  • Maximum Reach 260.3 in (6612 mm)
  • Auxiliary Circuit - Secondary - Pressure 4134 psi (285 bar)
  • Maximum Dump Clearance 251.6 in (6390 mm)
  • Tail Swing without Counterweight 57.1 in (1450 mm)
  • Stick Length 71.8 in (1823 mm)
  • Vertical Wall 133.6 in (3394 mm)
  • Stick Length 92.8 in (2358 mm)
  • Swing Bearing Height 31.4 in (798 mm)
  • O/A Shipping Length 259 in (6578 mm)
  • Track Belt/Shoe Width 17.7 in (450 mm)
  • Maximum Blade Height 13.5 in (342 mm)
  • Hydraulic System 28 gal (US) (107 l)
  • Digging Force - Stick - Long 8023 lb (35.7 kN)
  • Boom In Reach 120.4 in (3058 mm)
  • Maximum Operating Weight with Cab* 21054 lb (9550 kg)
  • Steel Tracks with Pads 728 lb (330 kg)
  • Dig Depth 183.1 in (4650 mm)
  • Machine Swing Speed 10.6 r/min (10.6 r/min)
  • Operating Pressure - Travel 4134 psi (285 bar)
  • Fuel Tank 39 gal (US) (147 l)
  • Net Power 70.3 HP (52.4 kW)
  • Operating Weight 20731 lb (9403 kg)
  • Engine Model ( )
  • Engine Oil 3 gal (US) (11.2 l)
  • Maximum Operating Weight with Cab** 20731 lb (9403 kg)
  • Overall Undercarriage Length 126 in (3200 mm)
  • Tail Swing with Counterweight 64.8 in (1645 mm)
  • Travel Speed - High 3.1 mile/h (4.9 km/h)
  • Maximum Reach - Ground Level 293.8 in (7462 mm)
  • Boom Swing Right 37 in (935 mm)
  • Gross Power - ISO 14396 74.3 HP (55.4 kW)
  • Overall Track Width 97.2 in (2470 mm)
  • Digging Force - Bucket 13943 lb (62 kN)
  • Vertical Wall 118 in (2998 mm)
  • Maximum Blade Height 13.5 in (342 mm)
  • Cab Height 99 in (2514 mm)
  • Pump Flow at 2,400 rpm 62 gal/min (233 l/min)
  • Maximum Reach at Ground Level 304.4 in (7732 mm)
  • Maximum Blade Depth 26.9 in (684 mm)
  • Maximum Traction Force - High Speed 6497 lb (28.9 kN)
  • Transport Height 99 in (2514 mm)
  • Boom In Reach 126.6 in (3215 mm)
  • Overall Shipping Length 227.2 in (5771 mm)
  • Maximum Dump Clearance 143.4 in (3643 mm)
  • Boom in Reach 112.3 in (2853 mm)
  • Ground Clearance 13.5 in (343 mm)
  • Tail Swing without Counterweight 57.1 in (1450 mm)
  • Maximum Reach at Ground Level 252.1 in (6403 mm)
  • Note ( )
  • Maximum Reach 311 in (7900 mm)
  • Maximum Reach 281.1 in (7140 mm)
  • Top Guard ( )
  • Auxiliary Circuit - Primary (High Flow) - Flow 37 gal/min (140 l/min)
  • Transport Height 97.9 in (2487 mm)
  • Cab Height 99 in (2514 mm)
  • O/A Track Width 97.2 in (2470 mm)
  • Track Belt/Shoe Width 17.7 in (450 mm)
  • Travel Speed - Low 1.6 mile/h (2.6 km/h)
  • Overall Shipping Length 281.8 in (7158 mm)
  • Maximum Blade Depth 26.9 in (684 mm)
  • Transport Height 99.6 in (2530 mm)
  • Boom Swing - Left 24 in (604 mm)
  • O/A Track Width 97.2 in (2470 mm)
  • Displacement 203 in³ (3.33 l)
  • Ground Clearance 13.5 in (343 mm)
  • Maximum Dig Height 321.7 in (8171 mm)
  • Roll Over Protective Structure (ROPS) ( )
  • Ground Pressure - Maximum Weight 6 psi (40.8 kPa)
  • Swing Bearing - Height 28.7 in (729 mm)
  • Tail Swing without Counterweight 57.1 in (1450 mm)
  • Boom Swing - Right 37 in (935 mm)
  • Tail Swing with Counterweight 64.8 in (1645 mm)
  • Maximum Traction Force - Low Speed 19064 lb (84.8 kN)
  • Maximum Dig Height 264.9 in (6729 mm)
  • Tail Swing without Counterweight 57.1 in (1450 mm)
  • Maximum Reach 300.7 in (7637 mm)
  • Track Belt/Shoe Width 17.7 in (450 mm)
  • Dig Depth 162 in (4115 mm)
  • Overall Track Width 97.2 in (2470 mm)
  • Overall Undercarriage Length 126 in (3200 mm)
  • Tail Swing with Counterweight 64.8 in (1645 mm)
  • Ground Clearance 13.5 in (343 mm)
  • 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))
  • Long Stick 146 lb (66 kg)
  • Tail Swing with Counterweight 64.8 in (1645 mm)
  • Vertical Wall 134.3 in (3411 mm)
  • Maximum Dump Clearance 187.1 in (4753 mm)
  • Counterweight 552 lb (250 kg)
  • Rated Net Power - 2,200 rpm - U.S. EPA Tier 4 Final - ISO 9249/EEC 80/1269 70.3 HP (52.4 kW)
  • Stick Length 71.8 in (1823 mm)
  • Stroke 4.7 in (120 mm)
  • Track Belt/Shoe Width 17.7 in (450 mm)
  • Maximum Dig Height 216.3 in (5494 mm)
  • O/A Undercarriage Length 126 in (3200 mm)
  • Width - Wide 103.9 in (2640 mm)
  • Minimum Operating Weight with Cab* 19304 lb (8756 kg)
  • Maximum Blade Height 13.5 in (342 mm)
  • O/A Shipping Length 262.3 in (6662 mm)
  • O/A Undercarriage Length 126 in (3200 mm)
  • Gradeability - Maximum ( )
  • Air Conditioning ( )
  • Boom Swing Right 37 in (935 mm)
  • Note ( )
  • Maximum Dig Height 276.8 in (7032 mm)
  • Bore 3.7 in (94 mm)
  • Boom Swing Left 24 in (604 mm)
  • Boom Swing Left 24 in (604 mm)
  • Width - Standard 97.2 in (2470 mm)
  • Note ( )
  • Transport Height 96.5 in (2452 mm)
  • Maximum Dump Clearance 199.4 in (5065 mm)
  • Dig Depth 136.5 in (3468 mm)
  • Operating Pressure - Swing 3626 psi (250 bar)
  • Maximum Blade Depth 26.9 in (684 mm)
  • Tip Over Protective Structure (TOPS) ( )
  • Note (2) ( )
  • Cooling System 2.6 gal (US) (10 l)
  • Hydraulic Tank 14 gal (US) (53 l)
  • Operating Pressure - Equipment 4134 psi (285 bar)

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<br>– Fuel Level and Coolant Temperature Gauges<br>– Maintenance and Machine Monitoring<br>– Performance and Machine Adjustments<br>– Numeric Security Code<br>– Multiple Languages<br>– Camera Ready<br>– Hour Meter with Wake Up Switch<br>– 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)

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)