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.
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Specs
Engine
- Engine Model
- Cat C3.3B
- Net Power
- 70.3HP
- Bore
- 3.7in
- Displacement
- 203in³
- Gross Power - ISO 14396
- 74.3HP
- Rated Net Power - 2,200 rpm - EU Stage V - ISO 9249/EEC 80/1269
- 71.5HP
- Rated Net Power - 2,200 rpm - U.S. EPA Tier 4 Final - ISO 9249/EEC 80/1269
- 70.3HP
- Stroke
- 4.7in
Weights
- Operating Weight
- 20731lb
- Maximum Operating Weight with Cab*
- 21054lb
- Maximum Operating Weight with Cab**
- 20731lb
- Minimum Operating Weight with Cab*
- 19304lb
- 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
- 17in
- Width - Standard
- 97.2in
- Width - Wide
- 103.9in
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
- 126.6in
- Boom Swing - Left
- 24in
- Boom Swing - Right
- 37in
- Cab Height
- 99in
- Dig Depth
- 183.1in
- Ground Clearance
- 13.5in
- Maximum Blade Depth
- 26.9in
- Maximum Blade Height
- 13.5in
- Maximum Dig Height
- 276.8in
- Maximum Dump Clearance
- 199.4in
- Maximum Reach
- 300.7in
- Maximum Reach - Ground Level
- 293.8in
- O/A Shipping Length
- 262.3in
- O/A Track Width
- 97.2in
- O/A Undercarriage Length
- 126in
- Stick Length
- 92.8in
- Swing Bearing - Height
- 28.7in
- Tail Swing with Counterweight
- 64.8in
- Tail Swing without Counterweight
- 57.1in
- Track Belt/Shoe Width
- 17.7in
- Transport Height
- 99in
- Vertical Wall
- 134.3in
Dimensions - Standard Stick
- Boom In Reach
- 120.4in
- Boom Swing - Left
- 24in
- Boom Swing - Right
- 37in
- Cab Height
- 99in
- Dig Depth
- 162in
- Ground Clearance
- 13.5in
- Maximum Blade Depth
- 26.9in
- Maximum Blade Height
- 13.5in
- Maximum Dig Height
- 264.9in
- Maximum Dump Clearance
- 187.1in
- Maximum Reach
- 281.1in
- Maximum Reach - Ground Level
- 273.6in
- O/A Shipping Length
- 259in
- O/A Track Width
- 97.2in
- O/A Undercarriage Length
- 126in
- Stick Length
- 71.8in
- Swing Bearing - Height
- 28.7in
- Tail Swing with Counterweight
- 64.8in
- Tail Swing without Counterweight
- 57.1in
- Track Belt/Shoe Width
- 17.7in
- Transport Height
- 97.9in
- Vertical Wall
- 118in
Dimensions - VAB In
- Boom Swing Left
- 24in
- Boom Swing Right
- 37in
- Boom in Reach
- 112.3in
- Cab Height
- 99in
- Dig Depth
- 154.8in
- Ground Clearance
- 13.5in
- Maximum Blade Depth
- 26.9in
- Maximum Blade Height
- 13.5in
- Maximum Dig Height
- 216.3in
- Maximum Dump Clearance
- 143.4in
- Maximum Reach
- 260.3in
- Maximum Reach at Ground Level
- 252.1in
- Overall Shipping Length
- 227.2in
- Overall Track Width
- 97.2in
- Overall Undercarriage Length
- 126in
- Stick Length
- 71.8in
- Swing Bearing Height
- 31.4in
- Tail Swing with Counterweight
- 64.8in
- Tail Swing without Counterweight
- 57.1in
- Track Belt/Shoe Width
- 17.7in
- Transport Height
- 99.6in
- Vertical Wall
- 133.6in
Dimensions - VAB Out
- Boom Swing Left
- 24in
- Boom Swing Right
- 37in
- Boom in Reach
- 117.9in
- Cab Height
- 99in
- Dig Depth
- 136.5in
- Ground Clearance
- 13.5in
- Maximum Blade Depth
- 26.9in
- Maximum Blade Height
- 13.5in
- Maximum Dig Height
- 321.7in
- Maximum Dump Clearance
- 251.6in
- Maximum Reach
- 311in
- Maximum Reach at Ground Level
- 304.4in
- Overall Shipping Length
- 281.8in
- Overall Track Width
- 97.2in
- Overall Undercarriage Length
- 126in
- Stick Length
- 71.8in
- Swing Bearing Height
- 31.4in
- Tail Swing with Counterweight
- 64.8in
- Tail Swing without Counterweight
- 57.1in
- Track Belt/Shoe Width
- 17.7in
- Transport Height
- 96.5in
- Vertical Wall
- 138.7in
Hydraulic System
- Auxiliary Circuit - Primary (High Flow) - Flow
- 37gal/min
- Auxiliary Circuit - Primary (High Flow) - Pressure
- 4134psi
- Auxiliary Circuit - Secondary - Flow
- 9gal/min
- Auxiliary Circuit - Secondary - Pressure
- 4134psi
- Digging Force - Bucket
- 13943lb
- Digging Force - Stick - Long
- 8023lb
- Digging Force - Stick - Standard
- 9500lb
- Operating Pressure - Equipment
- 4134psi
- Operating Pressure - Swing
- 3626psi
- Operating Pressure - Travel
- 4134psi
- Pump Flow at 2,400 rpm
- 62gal/min
- Type
- Load Sensing Hydraulics with Variable Displacement Piston Pump
Service Refill Capacities
- Cooling System
- 2.6gal (US)
- Engine Oil
- 3gal (US)
- Fuel Tank
- 39gal (US)
- Hydraulic System
- 28gal (US)
- Hydraulic Tank
- 14gal (US)
Sound
- Average Exterior Sound Pressure (ISO 6395:2008)
- 99dB(A)
- Note
- European Union Directive “2000/14/EC”
- Operator Sound Pressure (ISO 6396:2008)
- 72dB(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
- 10.6r/min
Travel System
- Gradeability - Maximum
- 30 degrees
- Ground Pressure - Maximum Weight
- 6psi
- Ground Pressure - Minimum Weight
- 6psi
- Maximum Traction Force - High Speed
- 6497lb
- Maximum Traction Force - Low Speed
- 19064lb
- Travel Speed - High
- 3.1mile/h
- Travel Speed - Low
- 1.6mile/h
Weight Increase from Minimum Configuration
- Counterweight
- 552lb
- Long Stick
- 146lb
- Steel Tracks with Pads
- 728lb
Features
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.
- 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.
- 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!
- 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.
- 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 we’ve built into the machine.
- 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.
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.
- 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.
- 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, –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
– 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 - 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)
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- 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)