Get a quote309 CR VAB Mini Hydraulic Excavator
Mini Excavators Inspired by Our Customers
More Comfort – More Performance – More Versatility
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4 Industry First Features
Cat Exclusives in a Mini Excavator
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Up to 10% Lower Total Ownership Costs
with improved fuel efficiency and longer service intervals
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Up to 20% More Performance
with customizable operator settings and improvements in lift, swing, travel and multifunction
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
| Bore | 3.7 in |
| Displacement | 203 in³ |
| Engine Model - U.S. EPA Tier 4 Final/EU Stage V | Cat C3.3B |
| Gross Power - SAE J1995:2014 | 74.3 hp |
| Net Power | 69.5 hp |
| Net Power - 2,200 rpm - ISO 9249:2007, 80/1269/EEC | 69.5 hp |
| Note | Net power advertised is the power available at the flywheel when the engine is equipped with air cleaner, exhaust system and fan. |
| Stroke | 4.7 in |
Weights
| Maximum Operating Weight* | 21477 lb |
| Minimum Operating Weight* | 20121 lb |
| 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. |
| Operating Weight | 21477 lb |
Weight Increase from Minimum Configuration
| Counterweight | 552 lb |
| Standard Stick | 77 lb |
| Steel Tracks with Pads | 728 lb |
Travel System
| Gradeability - Maximum | 30 degrees |
| Ground Pressure - Maximum Weight | 5.5 psi |
| Ground Pressure - Minimum Weight | 5.1 psi |
| Maximum Traction Force - High Speed | 6497 lbf |
| Maximum Traction Force - Low Speed | 19064 lbf |
| Travel Speed - High | 3.1 mile/h |
| Travel Speed - Low | 1.6 mile/h |
Service Refill Capacities
| Cooling System | 2.6 gal (US) |
| Engine Oil | 3 gal (US) |
| Fuel Tank | 39 gal (US) |
| Hydraulic System | 29 gal (US) |
| Hydraulic Tank | 14 gal (US) |
Hydraulic System
| Digging Force - Bucket | 13946 lbf |
| Digging Force - Stick - Standard | 9509 lbf |
| Maximum Auxiliary Circuit - Primary (High Flow) - Flow at Pump | 37 gal/min |
| Maximum Auxiliary Circuit - Primary (High Flow) - Pressure at Pump | 4134 psi |
| Maximum Auxiliary Circuit - Primary - Flow at Pump | 35 gal/min |
| Maximum Auxiliary Circuit - Primary - Pressure at Pump | 4134 psi |
| Maximum Auxiliary Circuit - Secondary - Flow at Pump | 9 gal/min |
| Maximum Auxiliary Circuit - Secondary - Pressure at Pump | 4134 psi |
| Note | Flow and pressure are not combinable. Under load, as flow rises pressure goes down. |
| Operating Pressure - Equipment | 4134 psi |
| Operating Pressure - Swing | 3626 psi |
| Operating Pressure - Travel | 4134 psi |
| Pump Flow at 2,400 rpm | 62 gal/min |
| Type | Load Sensing Hydraulics with Variable Displacement Piston Pump |
Swing System
| Boom Swing - Left | 60 degrees |
| Boom Swing - Right | 50 degrees |
| Machine Swing Speed | 10.6 r/min |
Blade
| Height | 17 in |
| Width - Standard | 97.2 in |
| Width - Wide | 103.9 in |
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) |
Sound
| Average Exterior Sound Pressure (ISO 6395:2008) | 99 dB(A) |
| Note | European Union Directive "2000/14/EC" |
| Operator Sound Pressure (ISO 6396:2008) | 72 dB(A) |
Dimensions - VAB In
| Boom Swing Left | 24 in |
| Boom Swing Right | 37 in |
| Boom in Reach | 122.8 in |
| Cab Height | 100 in |
| Dig Depth | 150.2 in |
| Ground Clearance | 14 in |
| Maximum Blade Depth | 19.1 in |
| Maximum Blade Height | 16.1 in |
| Maximum Dig Height | 205.5 in |
| Maximum Dump Clearance | 135.8 in |
| Maximum Reach | 256.5 in |
| Maximum Reach at Ground Level | 248 in |
| Overall Shipping Length | 255.7 in |
| Overall Track Width | 97.2 in |
| Overall Undercarriage Length | 126 in |
| Stick Length | 71.7 in |
| Swing Bearing Height | 29.8 in |
| Tail Swing with Counterweight | 62.4 in |
| Tail Swing without Counterweight | 57.1 in |
| Track Belt/Shoe Width | 17.7 in |
| Transport Height | 97.4 in |
| Vertical Wall | 99.2 in |
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
| Boom Swing Left | 24 in |
| Boom Swing Right | 37 in |
| Boom in Reach | 106.7 in |
| Cab Height | 100 in |
| Dig Depth | 136.2 in |
| Ground Clearance | 14 in |
| Maximum Blade Depth | 19.1 in |
| Maximum Blade Height | 16.1 in |
| Maximum Dig Height | 322 in |
| Maximum Dump Clearance | 247.4 in |
| Maximum Reach | 310.4 in |
| Maximum Reach at Ground Level | 303.7 in |
| Overall Shipping Length | 255.7 in |
| Overall Track Width | 97.2 in |
| Overall Undercarriage Length | 126 in |
| Stick Length | 71.7 in |
| Swing Bearing Height | 29.8 in |
| Tail Swing with Counterweight | 62.4 in |
| Tail Swing without Counterweight | 57.1 in |
| Track Belt/Shoe Width | 17.7 in |
| Transport Height | 97.4 in |
| Vertical Wall | 146.7 in |
Sustainability
| Recyclability | 96% |
Download resources
309 CR VAB (Long Undercarriage) Product Brochure
Cat Mini Hydraulic Excavators Product Line Brochure (North America)
Cat Mini Hydraulic Excavators Product Line Brochure (Europe)
Options And Accessories Kit Guide for Mini Hydraulic Excavators
Cat Attachments for Mini Excavators Brochure
Attachment Compatibility Guide for Mini Excavators
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Related Products
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
| Bore | 3.7 in |
| Displacement | 203 in³ |
| Engine Model - U.S. EPA Tier 4 Final/EU Stage V | Cat C3.3B |
| Gross Power - SAE J1995:2014 | 74.3 hp |
| Net Power | 69.5 hp |
| Net Power - 2,200 rpm - ISO 9249:2007, 80/1269/EEC | 69.5 hp |
| Note | Net power advertised is the power available at the flywheel when the engine is equipped with air cleaner, exhaust system and fan. |
| Stroke | 4.7 in |
Weights
| Maximum Operating Weight* | 21477 lb |
| Minimum Operating Weight* | 20121 lb |
| 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. |
| Operating Weight | 21477 lb |
Weight Increase from Minimum Configuration
| Counterweight | 552 lb |
| Standard Stick | 77 lb |
| Steel Tracks with Pads | 728 lb |
Travel System
| Gradeability - Maximum | 30 degrees |
| Ground Pressure - Maximum Weight | 5.5 psi |
| Ground Pressure - Minimum Weight | 5.1 psi |
| Maximum Traction Force - High Speed | 6497 lbf |
| Maximum Traction Force - Low Speed | 19064 lbf |
| Travel Speed - High | 3.1 mile/h |
| Travel Speed - Low | 1.6 mile/h |
Service Refill Capacities
| Cooling System | 2.6 gal (US) |
| Engine Oil | 3 gal (US) |
| Fuel Tank | 39 gal (US) |
| Hydraulic System | 29 gal (US) |
| Hydraulic Tank | 14 gal (US) |
Hydraulic System
| Digging Force - Bucket | 13946 lbf |
| Digging Force - Stick - Standard | 9509 lbf |
| Maximum Auxiliary Circuit - Primary (High Flow) - Flow at Pump | 37 gal/min |
| Maximum Auxiliary Circuit - Primary (High Flow) - Pressure at Pump | 4134 psi |
| Maximum Auxiliary Circuit - Primary - Flow at Pump | 35 gal/min |
| Maximum Auxiliary Circuit - Primary - Pressure at Pump | 4134 psi |
| Maximum Auxiliary Circuit - Secondary - Flow at Pump | 9 gal/min |
| Maximum Auxiliary Circuit - Secondary - Pressure at Pump | 4134 psi |
| Note | Flow and pressure are not combinable. Under load, as flow rises pressure goes down. |
| Operating Pressure - Equipment | 4134 psi |
| Operating Pressure - Swing | 3626 psi |
| Operating Pressure - Travel | 4134 psi |
| Pump Flow at 2,400 rpm | 62 gal/min |
| Type | Load Sensing Hydraulics with Variable Displacement Piston Pump |
Swing System
| Boom Swing - Left | 60 degrees |
| Boom Swing - Right | 50 degrees |
| Machine Swing Speed | 10.6 r/min |
Blade
| Height | 17 in |
| Width - Standard | 97.2 in |
| Width - Wide | 103.9 in |
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) |
Sound
| Average Exterior Sound Pressure (ISO 6395:2008) | 99 dB(A) |
| Note | European Union Directive "2000/14/EC" |
| Operator Sound Pressure (ISO 6396:2008) | 72 dB(A) |
Dimensions - VAB In
| Boom Swing Left | 24 in |
| Boom Swing Right | 37 in |
| Boom in Reach | 122.8 in |
| Cab Height | 100 in |
| Dig Depth | 150.2 in |
| Ground Clearance | 14 in |
| Maximum Blade Depth | 19.1 in |
| Maximum Blade Height | 16.1 in |
| Maximum Dig Height | 205.5 in |
| Maximum Dump Clearance | 135.8 in |
| Maximum Reach | 256.5 in |
| Maximum Reach at Ground Level | 248 in |
| Overall Shipping Length | 255.7 in |
| Overall Track Width | 97.2 in |
| Overall Undercarriage Length | 126 in |
| Stick Length | 71.7 in |
| Swing Bearing Height | 29.8 in |
| Tail Swing with Counterweight | 62.4 in |
| Tail Swing without Counterweight | 57.1 in |
| Track Belt/Shoe Width | 17.7 in |
| Transport Height | 97.4 in |
| Vertical Wall | 99.2 in |
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
| Boom Swing Left | 24 in |
| Boom Swing Right | 37 in |
| Boom in Reach | 106.7 in |
| Cab Height | 100 in |
| Dig Depth | 136.2 in |
| Ground Clearance | 14 in |
| Maximum Blade Depth | 19.1 in |
| Maximum Blade Height | 16.1 in |
| Maximum Dig Height | 322 in |
| Maximum Dump Clearance | 247.4 in |
| Maximum Reach | 310.4 in |
| Maximum Reach at Ground Level | 303.7 in |
| Overall Shipping Length | 255.7 in |
| Overall Track Width | 97.2 in |
| Overall Undercarriage Length | 126 in |
| Stick Length | 71.7 in |
| Swing Bearing Height | 29.8 in |
| Tail Swing with Counterweight | 62.4 in |
| Tail Swing without Counterweight | 57.1 in |
| Track Belt/Shoe Width | 17.7 in |
| Transport Height | 97.4 in |
| Vertical Wall | 146.7 in |
Sustainability
| Recyclability | 96% |