309 CR VAB Mini Hydraulic Excavator

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309 CR VAB Mini Hydraulic Excavator

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.

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  • 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.
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  • Controls are easy to use and the intuitive Next Generation Monitor provides customizable machine operator preferences and easy to read machine information.
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  • 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!
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  • 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 undercarriage provides improved stability.
https://s7d2.scene7.com/is/image/Caterpillar/CM20200302-ba5a5-c7a8c

  • 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.
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  • 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.
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  • 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.
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  • 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.

  • Dedicated auxiliary hydraulic pump is ideal for running power-hungry attachments while allowing the machine to simultaneously travel and multifunction. This feature allows consistent pressure to the auxiliary lines with no loss of hydraulic power keeping your attachment running at full power maintaining optimal productivity.
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  • The Cat® C3.3B engine meets U.S. EPA Tier 4 Final, EU Stage V, and Japan 2014 emission standards.
  • Cat diesel engines are required to use ULSD (ultra-low sulfur diesel fuel with 15 ppm of sulfur or less) or ULSD blended with the following lower-carbon intensity fuels up to: 20% biodiesel FAME (fatty acid methyl ester) * or 100% renewable diesel, HVO (hydrotreated vegetable oil) and GTL (gas-to-liquid) fuels. Refer to guidelines for successful application. Please consult your Cat dealer or “Caterpillar Machine Fluids Recommendations” (SEBU6250) for details.
  • Auto Idle helps reduce unnecessary fuel burn and greenhouse gas emissions by allowing the engine to automatically go into idle mode when the machine is not working.
  • Engine Idle Shutdown Timer reduces fuel burn, greenhouse gas emissions and unnecessary idle time by shutting down the machine after a pre-set idling period.
  • Cruise control helps you maintain a constant speed as you travel across your jobsite saving fuel and reducing greenhouse gas emissions.
  • The Cat® Seat Belt Reminder provides audible and visual warnings to remind operators to buckle up during machine operation. The easy-to-install system is compatible with all equipment brands to help ensure operator safety.
  • Extended maintenance intervals not only reduce downtime but decrease the amount of fluid and filters that are replaced over the life of the machine.
  • Remote Flash minimizes downtime and maintenance time while keeping your asset running with maximum efficiency. Alerts for machine updates are sent virtually from your Cat dealer and updates can be deployed without a dealer technician needing to be onsite.(if equipped)
  • Remote Troubleshoot decreases maintenance time and keeps your machine running with maximum efficiency by allowing your Cat dealer to virtually test the machine while working. Once a problem is identified, a technician can fix it the first time, saving time and money.(if equipped)
  • Cat Grade with advanced 2D and 3D technologies combine advanced guidance with optional automated machine control helping you reach grading targets while reducing fuel burn and greenhouse gas emissions by improving efficiency, job site productivity, and accuracy. (if equipped).
*Engines with no aftertreatment devices can use higher blends, up to 100% biodiesel. (for use of blends higher than 20% biodiesel, consult your Cat dealer)
Net Power
69.5hp
Displacement
203in³
Stroke
4.7in
Bore
3.7in
Gross Power – SAE J1995:2014
74.3hp
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
69.5hp
Engine Model – U.S. EPA Tier 4 Final/EU Stage V
Cat C3.3B
Operating Weight
21477lb
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*
20121lb
Maximum Operating Weight*
21477lb
Dig Depth
150.2in
Cab Height
100in
Maximum Blade Depth
19.1in
Maximum Blade Height
16.1in
Stick Length
71.7in
Maximum Reach
256.5in
Tail Swing without Counterweight
57.1in
Vertical Wall
99.2in
Swing Bearing Height
29.8in
Track Belt/Shoe Width
17.7in
Boom Swing Right
37in
Overall Track Width
97.2in
Overall Shipping Length
255.7in
Maximum Dump Clearance
135.8in
Boom in Reach
122.8in
Maximum Reach at Ground Level
248in
Transport Height
97.4in
Overall Undercarriage Length
126in
Ground Clearance
14in
Tail Swing with Counterweight
62.4in
Maximum Dig Height
205.5in
Boom Swing Left
24in
Height
17in
Width – Wide
103.9in
Width – Standard
97.2in
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.
Steel Tracks with Pads
728lb
Counterweight
552lb
Standard Stick
77lb
Ground Pressure – Minimum Weight
5.1psi
Travel Speed – High
3.1mile/h
Maximum Traction Force – High Speed
6497lbf
Travel Speed – Low
1.6mile/h
Ground Pressure – Maximum Weight
5.5psi
Maximum Traction Force – Low Speed
19064lbf
Gradeability – Maximum
30 degrees
Fuel Tank
39gal (US)
Hydraulic System
29gal (US)
Engine Oil
3gal (US)
Cooling System
2.6gal (US)
Hydraulic Tank
14gal (US)
Operating Pressure – Travel
4134psi
Type
Load Sensing Hydraulics with Variable Displacement Piston Pump
Digging Force – Stick – Standard
9509lbf
Digging Force – Bucket
13946lbf
Pump Flow at 2,400 rpm
62gal/min
Operating Pressure – Swing
3626psi
Note
Flow and pressure are not combinable. Under load, as flow rises pressure goes down.
Operating Pressure – Equipment
4134psi
Maximum Auxiliary Circuit – Secondary – Flow at Pump
9gal/min
Maximum Auxiliary Circuit – Secondary – Pressure at Pump
4134psi
Maximum Auxiliary Circuit – Primary – Flow at Pump
35gal/min
Maximum Auxiliary Circuit – Primary – Pressure at Pump
4134psi
Maximum Auxiliary Circuit – Primary (High Flow) – Pressure at Pump
4134psi
Maximum Auxiliary Circuit – Primary (High Flow) – Flow at Pump
37gal/min
Machine Swing Speed
10.6r/min
Boom Swing – Left
60 degrees
Boom Swing – Right
50 degrees
Top Guard
ISO 10262:1998 (Level II)
Roll Over Protective Structure (ROPS)
ISO 12117-2:2008
Tip Over Protective Structure (TOPS)
ISO 12117:1997
Average Exterior Sound Pressure (ISO 6395:2008)
99dB(A)
Operator Sound Pressure (ISO 6396:2008)
72dB(A)
Note
European Union Directive “2000/14/EC”
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.
Ground Clearance
14in
Cab Height
100in
Boom in Reach
106.7in
Vertical Wall
146.7in
Swing Bearing Height
29.8in
Maximum Dump Clearance
247.4in
Overall Undercarriage Length
126in
Maximum Reach at Ground Level
303.7in
Tail Swing without Counterweight
57.1in
Maximum Reach
310.4in
Track Belt/Shoe Width
17.7in
Overall Shipping Length
255.7in