Cat 309 CR Mini Excavator Specifications
ExcavatorsMini Excavator Specs
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. Featuring a compact radius design and high-flow hydraulics, this machine is engineered to handle heavy-duty attachments with ease, making it a highly versatile asset on Australian civil construction, commercial, and residential earthmoving sites.
Designed with operator comfort and safety in mind, the 309 CR features a sealed and pressurised cab, intuitive controls, and an easy-to-read Next Generation monitor. Its exceptional lifting, swinging, and travel performance, combined with simplified maintenance access, ensures maximum uptime and productivity for demanding hire and contracting fleets across Australia.
Details
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Machinery Specifications
Technical Specification
| Specification | Value |
|---|---|
| Maximum Dig Depth | 4,642mm |
| Maximum Reach at Ground Level | 7,462mm |
| Maximum Dump Height | 5,057mm |
| Maximum Blade Lift Height | 407mm |
| Maximum Blade Dig Depth | 408mm |
| Boom Swing – Left | 60 degrees |
| Boom Swing – Right | 50 degrees |
| Travel Speed – High | 4.9 km/h |
| Travel Speed – Low | 2.6 km/h |
| Auxiliary Hydraulic Flow – High Flow | 140 L/min |
| Auxiliary Hydraulic Pressure | 28,500 kPa |
Engine Specification
| Specification | Value |
|---|---|
| Engine Model | Cat C3.3B |
| Net Power | 69.5 hp (51.8 kW) |
| Gross Power | 74.3 hp (55.4 kW) |
| Displacement | 3.3 L |
| Cylinders | 4 |
| Emission Standard | U.S. EPA Tier 4 Final / EU Stage V |
| Fuel Tank Capacity | 147 L |
Additional Information
The Cat 309 CR stands out in the sub-10-tonne class due to its dedicated auxiliary high-flow hydraulic pump, which delivers continuous flow to demanding work tools without compromising travel or boom performance. It features Cat’s exclusive Stick Steer system, allowing the operator to switch from traditional lever controls to joystick travel control at the touch of a button. Combined with customisable operator settings and long service intervals, this machine offers unmatched efficiency and lower operating costs on Australian worksites.
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