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.
| Operating Weight | 9740 kg |
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| Maximum Operating Weight* | 9740 kg |
| Minimum Operating Weight* | 9125 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. |
| Dig Depth | 3815 mm |
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| Boom in Reach | 3120 mm |
| Boom Swing Left | 605 mm |
| Boom Swing Right | 935 mm |
| Cab Height | 2541 mm |
| Ground Clearance | 356 mm |
| Maximum Blade Depth | 484 mm |
| Maximum Blade Height | 408 mm |
| Maximum Dig Height | 5220 mm |
| Maximum Dump Clearance | 3450 mm |
| Maximum Reach | 6515 mm |
| Maximum Reach at Ground Level | 6300 mm |
| Overall Shipping Length | 6495 mm |
| Overall Track Width | 2470 mm |
| Overall Undercarriage Length | 3200 mm |
| Stick Length | 1820 mm |
| Swing Bearing Height | 756 mm |
| Tail Swing with Counterweight | 1585 mm |
| Tail Swing without Counterweight | 1450 mm |
| Track Belt/Shoe Width | 450 mm |
| Transport Height | 2475 mm |
| Vertical Wall | 2520 mm |
| Net Power | 51.8 kW |
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| Bore | 94 mm |
| Stroke | 120 mm |
| Displacement | 3.33 l |
| Engine Model - U.S. EPA Tier 4 Final/EU Stage V | Cat C3.3B |
| Gross Power - SAE J1995 | 55.4 kW |
| Net Power - 2,200 rpm - ISO 9249:2007, 80/1269/EEC | 51.8 kW |
| Note | Net power advertised is the power available at the flywheel when the engine is equipped with air cleaner, exhaust system and fan. |
| Height | 431 mm |
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| Width - Standard | 2470 mm |
| Width - Wide | 2640 mm |
| Fuel Tank | 147 l |
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| Cooling System | 10 l |
| Engine Oil | 11.2 l |
| Hydraulic System | 110 l |
| Hydraulic Tank | 53 l |
| 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. |
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| Roll Over Protective Structure (ROPS) | ISO 12117-2:2008 |
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| Tip Over Protective Structure (TOPS) | ISO 12117:1997 |
| Top Guard | ISO 10262:1998 (Level II) |
| Boom in Reach | 2710 mm |
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| Boom Swing Left | 605 mm |
| Boom Swing Right | 935 mm |
| Cab Height | 2541 mm |
| Dig Depth | 3460 mm |
| Ground Clearance | 356 mm |
| Maximum Blade Depth | 484 mm |
| Maximum Blade Height | 408 mm |
| Maximum Dig Height | 8180 mm |
| Maximum Dump Clearance | 6285 mm |
| Maximum Reach | 7885 mm |
| Maximum Reach at Ground Level | 7715 mm |
| Overall Shipping Length | 6495 mm |
| Overall Track Width | 2470 mm |
| Overall Undercarriage Length | 3200 mm |
| Stick Length | 1820 mm |
| Swing Bearing Height | 756 mm |
| Tail Swing with Counterweight | 1585 mm |
| Tail Swing without Counterweight | 1450 mm |
| Track Belt/Shoe Width | 450 mm |
| Transport Height | 2475 mm |
| Vertical Wall | 3725 mm |
| Digging Force - Bucket | 62 kN |
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| Digging Force - Stick - Standard | 42.3 kN |
| Maximum Auxiliary Circuit - Primary (High Flow) - Flow at Pump | 140 l/min |
| Maximum Auxiliary Circuit - Primary (High Flow) - 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 - Secondary - Flow at Pump | 33 l/min |
| Maximum Auxiliary Circuit - Secondary - Pressure at Pump | 285 bar |
| Note | Flow and pressure are not combinable. Under load, as flow rises pressure goes down. |
| Operating Pressure - Equipment | 285 bar |
| Operating Pressure - Swing | 250 bar |
| Operating Pressure - Travel | 285 bar |
| Pump Flow at 2,400 rpm | 233 l/min |
| Type | Load Sensing Hydraulics with Variable Displacement Piston Pump |
| Average Exterior Sound Pressure (ISO 6395:2008) | 99 dB(A) |
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| Note | European Union Directive "2000/14/EC" |
| Operator Sound Pressure (ISO 6396:2008) | 72 dB(A) |
| 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. |
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| Boom Swing - Left | 60 degrees |
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| Boom Swing - Right | 50 degrees |
| Machine Swing Speed | 10.6 r/min |
| Gradeability - Maximum | 30 degrees |
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| Ground Pressure - Maximum Weight | 37.8 kPa |
| Ground Pressure - Minimum Weight | 35.4 kPa |
| Maximum Traction Force - High Speed | 28.9 kN |
| Maximum Traction Force - Low Speed | 84.8 kN |
| Travel Speed - High | 4.9 km/h |
| Travel Speed - Low | 2.6 km/h |
| Counterweight | 250 kg |
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| Standard Stick | 35 kg |
| Steel Tracks with Pads | 330 kg |
| Recyclability | 96% |
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