The Cat® 309 CR Mini Excavator delivers maximum power and performance in a mini size to help you work in a wide range of applications.The 309 CR also features high flow hydraulics to handle power hungry attachments such as mulchers and brushcutters.
Net Power | 52.4 kW |
Engine Model | Cat C3.3B |
Displacement | 3.33 l |
Bore | 94 mm |
Rated Net Power - 2,200 rpm - EU Stage V - ISO 9249/EEC 80/1269 | 53.3 kW |
Gross Power - ISO 14396 | 55.4 kW |
Rated Net Power - 2,200 rpm - U.S. EPA Tier 4 Final - ISO 9249/EEC 80/1269 | 52.4 kW |
Stroke | 120 mm |
Operating Weight | 9403 kg |
Maximum Operating Weight with Cab** | 9565 kg |
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. |
Minimum Operating Weight with Cab* | 8950 kg |
Dig Depth | 4593 mm |
O/A Shipping Length | 6816 mm |
Maximum Dump Clearance | 5122 mm |
Boom In Reach | 3215 mm |
Vertical Wall | 3354 mm |
Maximum Blade Depth | 671 mm |
O/A Undercarriage Length | 3200 mm |
O/A Track Width | 2470 mm |
Transport Height | 2514 mm |
Stick Length | 2358 mm |
Maximum Blade Height | 355 mm |
Maximum Dig Height | 7089 mm |
Tail Swing with Counterweight | 1645 mm |
Maximum Reach | 7637 mm |
Cab Height | 2607 mm |
Ground Clearance | 356 mm |
Swing Bearing - Height | 795 mm |
Track Belt/Shoe Width | 450 mm |
Boom Swing - Left | 604 mm |
Boom Swing - Right | 935 mm |
Tail Swing without Counterweight | 1450 mm |
Maximum Reach - Ground Level | 7449 mm |
Height | 431 mm |
Width - Wide | 2640 mm |
Width - Standard | 2470 mm |
Boom Swing - Right | 935 mm |
Maximum Dump Clearance | 4810 mm |
Tail Swing without Counterweight | 1450 mm |
Transport Height | 2487 mm |
Maximum Reach - Ground Level | 6930 mm |
O/A Undercarriage Length | 3200 mm |
Cab Height | 2607 mm |
Swing Bearing - Height | 795 mm |
Maximum Dig Height | 3786 mm |
Track Belt/Shoe Width | 450 mm |
O/A Track Width | 2470 mm |
Ground Clearance | 356 mm |
O/A Shipping Length | 6731 mm |
Maximum Reach | 7141 mm |
Tail Swing with Counterweight | 1645 mm |
Boom In Reach | 3059 mm |
Vertical Wall | 2941 mm |
Dig Depth | 4058 mm |
Stick Length | 1823 mm |
Boom Swing - Left | 604 mm |
Maximum Blade Height | 355 mm |
Maximum Blade Depth | 671 mm |
Type | Load Sensing Hydraulics with Variable Displacement Piston Pump |
Operating Pressure - Swing | 250 bar |
Auxiliary Circuit - Secondary - Flow | 33 l/min |
Auxiliary Circuit - Primary (High Flow) - Pressure | 285 bar |
Digging Force - Stick - Standard | 42.3 kN |
Digging Force - Stick - Long | 35.7 kN |
Auxiliary Circuit - Secondary - Pressure | 285 bar |
Operating Pressure - Travel | 285 bar |
Pump Flow at 2,400 rpm | 233 l/min |
Digging Force - Bucket | 62 kN |
Auxiliary Circuit - Primary (High Flow) - Flow | 140 l/min |
Operating Pressure - Equipment | 285 bar |
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) |
Gradeability - Maximum | 30 degrees |
Ground Pressure - Minimum Weight | 34.7 kPa |
Ground Pressure - Maximum Weight | 37.1 kPa |
Travel Speed - High | 4.9 km/h |
Travel Speed - Low | 2.6 km/h |
Maximum Traction Force - High Speed | 28.9 kN |
Maximum Traction Force - Low Speed | 84.8 kN |
Roll Over Protective Structure (ROPS) | ISO 12117-2:2008 |
Top Guard | ISO 10262:1998 (Level II) |
Tip Over Protective Structure (TOPS) | ISO 12117:1997 |
Engine Oil | 11.2 l |
Fuel Tank | 147 l |
Hydraulic System | 110 l |
Cooling System | 10 l |
Hydraulic Tank | 53 l |
Steel Tracks with Pads | 330 kg |
Long Stick | 66 kg |
Counterweight | 250 kg |
Machine Swing Speed | 10.6 r/min |
Boom Swing - Right | 50 degrees |
Boom Swing - Left | 60 degrees |
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. |
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. |