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309 CR VAB (Long Undercarriage)

Mini Excavators

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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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.
Net Power 51.8 kW
Displacement 3.33 l
Stroke 120 mm
Availability Please Call Admin
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309 CR VAB (Long Undercarriage)
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OVERVIEW

Mini Excavators Inspired by Our Customers

FEATURES & BENEFITS

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 d... Read more

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. Read more

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... Read more

BIG PERFORMANCE IN A MINI DESIGN

Increased lifting, swinging, travel and multi-functioning performance helps you get the job done more efficiently, dig-to-blade allows easy clean up and long undercarriag... Read more

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... Read more

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. Read more

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 reduc... Read more

UNMATCHED DEALER SUPPORT

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 rea... Read more

HIGH FLOW

Dedicated auxiliary hydraulic pump is ideal for running power-hungry attachments while allowing the machine to simultaneously travel and multifunction. This feature allow... Read more

SPECIFICATIONS FOR 309 CR VAB (Long Undercarriage)

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Specifications
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.
Engine
Net Power 51.8 kW
Displacement 3.33 l
Stroke 120 mm
Bore 94 mm
Gross Power - SAE J1995 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 - 2,200 rpm - ISO 9249:2007, 80/1269/EEC 51.8 kW
Engine Model - U.S. EPA Tier 4 Final/EU Stage V Cat C3.3B
Weights
Operating Weight 9740 kg
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* 9125 kg
Maximum Operating Weight* 9740 kg
Weight Increase from Minimum Configuration
Steel Tracks with Pads 330 kg
Counterweight 250 kg
Standard Stick 35 kg
Travel System
Ground Pressure - Minimum Weight 35.4 kPa
Travel Speed - High 4.9 km/h
Maximum Traction Force - High Speed 28.9 kN
Travel Speed - Low 2.6 km/h
Ground Pressure - Maximum Weight 37.8 kPa
Maximum Traction Force - Low Speed 84.8 kN
Gradeability - Maximum 30 degrees
Service Refill Capacities
Fuel Tank 147 l
Hydraulic System 110 l
Engine Oil 11.2 l
Cooling System 10 l
Hydraulic Tank 53 l
Hydraulic System
Operating Pressure - Travel 285 bar
Type Load Sensing Hydraulics with Variable Displacement Piston Pump
Digging Force - Stick - Standard 42.3 kN
Digging Force - Bucket 62 kN
Pump Flow at 2,400 rpm 233 l/min
Operating Pressure - Swing 250 bar
Note Flow and pressure are not combinable. Under load, as flow rises pressure goes down.
Operating Pressure - Equipment 285 bar
Maximum Auxiliary Circuit - Secondary - Flow at Pump 33 l/min
Maximum Auxiliary Circuit - Secondary - Pressure at Pump 285 bar
Maximum Auxiliary Circuit - Primary - Flow at Pump 131 l/min
Maximum Auxiliary Circuit - Primary - Pressure at Pump 285 bar
Maximum Auxiliary Circuit - Primary (High Flow) - Pressure at Pump 285 bar
Maximum Auxiliary Circuit - Primary (High Flow) - Flow at Pump 140 l/min
Swing System
Machine Swing Speed 10.6 r/min
Boom Swing - Left 60 degrees
Boom Swing - Right 50 degrees
Blade
Height 431 mm
Width - Wide 2640 mm
Width - Standard 2470 mm
Certification - Cab
Top Guard ISO 10262:1998 (Level II)
Roll Over Protective Structure (ROPS) ISO 12117-2:2008
Tip Over Protective Structure (TOPS) ISO 12117:1997
Sound
Average Exterior Sound Pressure (ISO 6395:2008) 99 dB(A)
Operator Sound Pressure (ISO 6396:2008) 72 dB(A)
Note European Union Directive "2000/14/EC"
Dimensions - VAB In
Dig Depth 3815 mm
Cab Height 2541 mm
Maximum Blade Depth 484 mm
Maximum Blade Height 408 mm
Stick Length 1820 mm
Maximum Reach 6515 mm
Tail Swing without Counterweight 1450 mm
Vertical Wall 2520 mm
Swing Bearing Height 756 mm
Track Belt/Shoe Width 450 mm
Boom Swing Right 935 mm
Overall Track Width 2470 mm
Overall Shipping Length 6495 mm
Maximum Dump Clearance 3450 mm
Boom in Reach 3120 mm
Maximum Reach at Ground Level 6300 mm
Transport Height 2475 mm
Overall Undercarriage Length 3200 mm
Ground Clearance 356 mm
Tail Swing with Counterweight 1585 mm
Maximum Dig Height 5220 mm
Boom Swing Left 605 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.
Dimensions - VAB Out
Ground Clearance 356 mm
Cab Height 2541 mm
Boom in Reach 2710 mm
Vertical Wall 3725 mm
Swing Bearing Height 756 mm
Maximum Dump Clearance 6285 mm
Overall Undercarriage Length 3200 mm
Maximum Reach at Ground Level 7715 mm
Tail Swing without Counterweight 1450 mm
Maximum Reach 7885 mm
Track Belt/Shoe Width 450 mm
Overall Shipping Length 6495 mm
Maximum Blade Depth 484 mm
Maximum Dig Height 8180 mm
Overall Track Width 2470 mm
Tail Swing with Counterweight 1585 mm
Stick Length 1820 mm
Maximum Blade Height 408 mm
Boom Swing Right 935 mm
Boom Swing Left 605 mm
Transport Height 2475 mm
Dig Depth 3460 mm
Sustainability
Recyclability 96%

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