WE’RE OPEN FOR BUSINESS | READ OUR COVID-19 POLICY

309 CR Mini Excavator with Variable Angle Boom

Introducing the Next Generation Cat 7-10 Ton Mini Excavators Introducing the Next Generation Cat 7-10 Ton Mini Excavators
Overview of the Next Generation Cat 7-10 Ton Mini Excavators Overview of the Next Generation Cat 7-10 Ton Mini Excavators
Standard Monitor on the Next Generation Cat Mini Excavators Standard Monitor on the Next Generation Cat Mini Excavators
Stick Steer on the Cat Next Generation Mini Excavators Stick Steer on the Cat Next Generation Mini Excavators
Daily Maintenance and Inspection on the Cat 7-10 Ton Mini Excavators Daily Maintenance and Inspection on the Cat 7-10 Ton Mini Excavators
Safety Features on the Cat 7-10 Ton Mini Excavators Safety Features on the Cat 7-10 Ton Mini Excavators
Request Info
Price And Configure

SPECS SUMMARY

Net Power69.5 HP (51.8 kW)
Operating Weight21477 lb (9740 kg)
Dig Depth150.2 in (3815 mm)
Height17 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.

Specifications

Net Power69.5 HP (51.8 kW)
Operating Weight21477 lb (9740 kg)
Dig Depth150.2 in (3815 mm)
Height17 in (431 mm)
NoteThe 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.
Transport Height91.7 in (2330 mm)
Transport Height97.4 in (2475 mm)
Dig Depth136.2 in (3460 mm)
Ground Clearance14 in (356 mm)
Maximum Reach253.1 in (6430 mm)
Boom Swing Left24 in (605 mm)
Tail Swing without Counterweight57.1 in (1450 mm)
Track Belt/Shoe Width17.7 in (450 mm)
Boom Swing Right37 in (935 mm)
Maximum Reach at Ground Level244.5 in (6210 mm)
Maximum Dump Clearance138.2 in (3510 mm)
Overall Track Width97.2 in (2470 mm)
Overall Shipping Length255.3 in (6485 mm)
Boom Swing Left24 in (605 mm)
Stick Length71.7 in (1820 mm)
Maximum Blade Height16.1 in (408 mm)
Tail Swing without Counterweight57.1 in (1450 mm)
Boom in Reach106.7 in (2710 mm)
Vertical Wall146.7 in (3725 mm)
Swing Bearing Height29.8 in (756 mm)
Maximum Dump Clearance247.4 in (6285 mm)
Overall Undercarriage Length126 in (3200 mm)
Maximum Reach at Ground Level303.7 in (7715 mm)
Maximum Reach310.4 in (7885 mm)
Cab Height100 in (2541 mm)
Track Belt/Shoe Width17.7 in (450 mm)
Overall Shipping Length255.7 in (6495 mm)
Maximum Blade Depth19.1 in (484 mm)
Maximum Dig Height322 in (8180 mm)
Overall Track Width97.2 in (2470 mm)
Tail Swing with Counterweight62.4 in (1585 mm)
Tail Swing with Counterweight62.4 in (1585 mm)
Dig Depth145.7 in (3700 mm)
Ground Clearance14 in (356 mm)
Stick Length65.6 in (1665 mm)
Maximum Reach305.1 in (7750 mm)
Boom Swing Right37 in (935 mm)
Boom in Reach96.9 in (2460 mm)
Tail Swing without Counterweight57.1 in (1450 mm)
Maximum Blade Height16.1 in (408 mm)
Dig Depth130.1 in (3305 mm)
Track Belt/Shoe Width17.7 in (450 mm)
Overall Shipping Length255.3 in (6485 mm)
Maximum Dig Height316.7 in (8045 mm)
Maximum Blade Depth19.1 in (484 mm)
Maximum Dump Clearance242.5 in (6160 mm)
Gross Power - SAE J199574.3 HP (55.4 kW)
NoteNet 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/EEC69.5 HP (51.8 kW)
Ground Clearance14 in (356 mm)
Transport Height91.7 in (2330 mm)
Maximum Blade Height16.1 in (408 mm)
Stick Length65.6 in (1665 mm)
Swing Bearing Height29.8 in (756 mm)
Maximum Dig Height208.7 in (5300 mm)
Vertical Wall95.9 in (2435 mm)
Maximum Blade Depth19.1 in (484 mm)
Boom Swing Right37 in (935 mm)
Overall Undercarriage Length126 in (3200 mm)
Boom in Reach122.4 in (3110 mm)
Swing Bearing Height29.8 in (756 mm)
Cab Height100 in (2541 mm)
Overall Track Width97.2 in (2470 mm)
Tail Swing with Counterweight62.4 in (1585 mm)
Maximum Reach at Ground Level298.2 in (7575 mm)
Overall Undercarriage Length126 in (3200 mm)
Boom Swing Left24 in (605 mm)
Vertical Wall138.2 in (3510 mm)
Cab Height100 in (2541 mm)
Tail Swing with Counterweight62.4 in (1585 mm)
Boom Swing Left24 in (605 mm)
Gradeability - Maximum30 degrees
Maximum Auxiliary Circuit - Secondary - Flow at Pump9 gal/min (33 l/min)
Operating Pressure - Equipment4134 psi (285 bar)
NoteFlow and pressure are not combinable. Under load, as flow rises pressure goes down.
Operating Pressure - Swing3626 psi (250 bar)
Pump Flow at 2,400 rpm62 gal/min (233 l/min)
Digging Force - Bucket13946 lbf (62 kN)
Digging Force - Stick - Standard9509 lbf (42.3 kN)
TypeLoad Sensing Hydraulics with Variable Displacement Piston Pump
Operating Pressure - Travel4134 psi (285 bar)
Hydraulic Tank14 gal (US) (53 l)
Cooling System2.6 gal (US) (10 l)
Engine Oil3 gal (US) (11.2 l)
Hydraulic System29 gal (US) (110 l)
Fuel Tank39 gal (US) (147 l)
Maximum Traction Force - Low Speed19064 lbf (84.8 kN)
Maximum Auxiliary Circuit - Primary - Flow at Pump35 gal/min (131 l/min)
Maximum Operating Weight*21477 lb (9740 kg)
Displacement203 in³ (3.33 l)
Stroke4.7 in (120 mm)
Bore3.7 in (94 mm)
Note (1)*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.
Minimum Operating Weight*20121 lb (9125 kg)
Steel Tracks with Pads728 lb (330 kg)
Ground Pressure - Maximum Weight5.5 psi (37.8 kPa)
Counterweight552 lb (250 kg)
Standard Stick77 lb (35 kg)
Ground Pressure - Minimum Weight5.1 psi (35.4 kPa)
Travel Speed - High3.1 mile/h (4.9 km/h)
Maximum Traction Force - High Speed6497 lbf (28.9 kN)
Travel Speed - Low1.6 mile/h (2.6 km/h)
Maximum Auxiliary Circuit - Secondary - Pressure at Pump4134 psi (285 bar)
Maximum Auxiliary Circuit - Primary - Pressure at Pump4134 psi (285 bar)
Maximum Dig Height205.5 in (5220 mm)
Overall Track Width97.2 in (2470 mm)
Maximum Reach256.5 in (6515 mm)
Tail Swing without Counterweight57.1 in (1450 mm)
Vertical Wall99.2 in (2520 mm)
Swing Bearing Height29.8 in (756 mm)
Track Belt/Shoe Width17.7 in (450 mm)
Boom Swing Right37 in (935 mm)
Overall Shipping Length255.7 in (6495 mm)
Maximum Blade Height16.1 in (408 mm)
Maximum Dump Clearance135.8 in (3450 mm)
Boom in Reach122.8 in (3120 mm)
Maximum Reach at Ground Level248 in (6300 mm)
Transport Height97.4 in (2475 mm)
Overall Undercarriage Length126 in (3200 mm)
Ground Clearance14 in (356 mm)
Stick Length71.7 in (1820 mm)
Maximum Blade Depth19.1 in (484 mm)
Maximum Auxiliary Circuit - Primary (High Flow) - Pressure at Pump4134 psi (285 bar)
Width - Standard97.2 in (2470 mm)
Maximum Auxiliary Circuit - Primary (High Flow) - Flow at Pump37 gal/min (140 l/min)
Digging Force - Stick (Short)9217 lbf (41 kN)
Machine Swing Speed10.6 r/min (10.6 r/min)
Boom Swing - Left60 degrees
Boom Swing - Right50 degrees
Width - Wide103.9 in (2640 mm)
Top GuardISO 10262:1998 (Level II)
Cab Height100 in (2541 mm)
Roll Over Protective Structure (ROPS)ISO 12117-2:2008
Tip Over Protective Structure (TOPS)ISO 12117:1997
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))
NoteEuropean Union Directive "2000/14/EC"
Air ConditioningThe 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.
Engine Model - U.S. EPA Tier 4 Final/EU Stage VCat C3.3B

Benefits and Features

  • 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.

  • Controls are easy to use and the intuitive Next Generation Monitor provides customizable machine operator preferences and easy to read machine information.

  • 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!

  • 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.

  • 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.

  • 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.

  • 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.

  • Your Cat dealer is here to help you reach your business goals. From providing equipment solutions to operator training to service needs and beyond, your Cat dealer is ready to help.

Standard Equipment

  • 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
  • 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
  • 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
  • Greased and Lubricated Track
  • Hydraulic Track Adjusters
  • Tie Down Eyes on Track Frame
  • Dozer Blade
  • Dozer Float
  • Bolt-on, Reversible Wear Edge
  • 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)
  • 12 Volt Electrical System
  • 90 Ampere Alternator
  • Circuit Breaker
  • 850 CCA Maintenance Free Battery
  • Battery Disconnect
  • Ignition Key Stop Switch
  • Locks on External Enclosure Doors
  • Lockable Fuel Cap
  • Beacon Socket
  • Rear Reflectors

Optional Equipment

  • 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
  • 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
  • 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
  • Product Link Elite (regulations apply)
  • Travel Alarm
  • Rearview Camera
  • Rotating Beacon
  • 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
  • Additional Counterweight
  • Water Jacket Heater
  • Refueling Pump