CAT 308 vs. KX080: A Comparative Overview of Two Compact Excavators

[MikePhua]

Compact excavators, also known as mini excavators, are increasingly becoming the preferred choice for contractors and operators who need versatility, maneuverability, and power in a smaller package. Among the top contenders in this category are the CAT 308 and the KX080 (from Kubota). Both of these machines are highly regarded in the industry for their performance and reliability, but they each have unique features that cater to different needs. In this article, we will take a deep dive into the specifications, capabilities, and real-world applications of these two compact excavators, comparing their strengths and weaknesses in detail.
Understanding Compact Excavators
Before diving into the specifics of the CAT 308 and KX080, it is important to understand what makes a compact excavator unique. Compact excavators are designed for working in confined spaces where larger machines might struggle. These machines are essential for tasks such as trenching, digging, lifting, and even demolition work, all while offering superior maneuverability.

• Size and Weight: Compact excavators are smaller and lighter than their full-sized counterparts, making them easier to transport, operate, and store.
  
• Versatility: These machines are equipped with quick-change attachments, allowing them to perform various tasks, from digging trenches to handling materials.
  
• Efficiency: Compact excavators are designed to be fuel-efficient while maintaining powerful performance, allowing operators to complete tasks quickly and effectively.
  

Now, let's take a closer look at the CAT 308 and KX080, two machines that have earned a reputation for their performance in tough working conditions.
CAT 308: Power and Precision in a Compact Design
The CAT 308 is a part of Caterpillar's 300 series of mini excavators. Known for its robust build quality and reliability, the 308 is often seen as the perfect combination of power and versatility for contractors looking for an all-around solution for excavation and material handling.

• Engine Power: The CAT 308 is equipped with a 55.4 hp (41.3 kW) engine, providing ample power for most compact excavator tasks. It delivers an excellent balance between fuel economy and raw power, ensuring that operators can tackle tough digging jobs without sacrificing efficiency.
  
• Operating Weight: The operating weight of the CAT 308 is around 8,500 kg (18,739 lbs), which is on the higher end for mini excavators. This added weight helps to stabilize the machine, making it more effective for larger tasks that require greater digging force.
  
• Hydraulic System: The 308 is equipped with a powerful hydraulic system that can produce up to 33.2 gallons per minute (125 liters per minute) of flow, which enables efficient operation of attachments such as buckets, augers, and breakers. The machine’s hydraulic performance is ideal for a wide range of applications, from trenching to lifting.
  
• Cab and Comfort: The 308 features a spacious, air-conditioned operator cab that provides excellent visibility and comfort. The controls are ergonomic, reducing operator fatigue during long hours of work.
  
• Technology Integration: The CAT 308 is equipped with Cat Connect technology, which includes telematics that allow operators to remotely monitor machine performance, fuel usage, and maintenance schedules. This helps improve overall fleet management and reduces downtime.
  
• Performance in the Field: The CAT 308 excels in a variety of industries, from construction and landscaping to utility work. Its high digging force and long reach make it an ideal choice for contractors working in both urban and rural environments.
  

Kubota KX080: A Competitor with Class-Leading Features
The KX080 is one of Kubota’s most popular models in the 8-ton range of compact excavators. Renowned for its impressive hydraulic power and stability, the KX080 is a favorite among operators who need a machine that combines high performance with ease of use.

• Engine Power: The KX080 is powered by a 64 hp (47.7 kW) engine, offering more horsepower than the CAT 308. This allows the KX080 to perform exceptionally well in demanding environments, offering a bit more muscle for heavy-duty tasks.
  
• Operating Weight: With an operating weight of 8,360 kg (18,420 lbs), the KX080 is nearly the same weight as the CAT 308, providing stability and control during heavy digging and lifting tasks. Its slightly lighter weight compared to other machines in the same category allows for enhanced mobility in tight spaces.
  
• Hydraulic System: Kubota’s KX080 offers a maximum hydraulic flow rate of 28.3 gallons per minute (107.2 liters per minute), which is slightly lower than the CAT 308, but still highly competitive in the mini excavator category. The powerful hydraulic system ensures excellent performance, especially when using attachments like breakers and rippers.
  
• Cab and Operator Comfort: The KX080’s cab is also designed for operator comfort. It features excellent visibility and intuitive controls, and the seat can be adjusted for long working hours. The cab is spacious, and the climate control system ensures that operators stay comfortable even in hot or cold conditions.
  
• Versatility: The KX080 is equipped with a variety of features that make it versatile in the field. With its adjustable boom and large digging depth, the KX080 excels in applications such as trenching, lifting, and demolition. Its compact design allows it to access narrow spaces while maintaining high performance.
  
• Technology Integration: Like the CAT 308, the Kubota KX080 offers telematics, allowing for remote monitoring of the machine’s performance, fuel efficiency, and service needs. This feature aids in fleet management and ensures that any issues are addressed before they lead to downtime.
  
• Performance in the Field: The KX080 is often chosen for its impressive lifting capacity and digging depth. It performs well in construction, landscaping, and utility work, offering solid performance across a variety of tasks.
  

Comparing the CAT 308 and Kubota KX080
When comparing the CAT 308 and KX080, both machines offer outstanding performance and have their unique advantages. Here’s a comparison of key factors:

[*]Engine Power:

• CAT 308: 55.4 hp (41.3 kW)
  
• Kubota KX080: 64 hp (47.7 kW)
  

[*]Operating Weight:

• CAT 308: 8,500 kg (18,739 lbs)
  
• Kubota KX080: 8,360 kg (18,420 lbs)
  

[*]Hydraulic Flow:

• CAT 308: 33.2 GPM (125 LPM)
  
• Kubota KX080: 28.3 GPM (107.2 LPM)
  

[*]Hydraulic Pressure:

• CAT 308: High, optimized for attachments
  
• Kubota KX080: High, excellent lifting force
  

[*]Cab Comfort:

• CAT 308: Spacious, air-conditioned
  
• Kubota KX080: Spacious, adjustable seat
  

[*]Technology:

• CAT 308: Cat Connect, telematics
  
• Kubota KX080: Kubota telematics
  

[*]Versatility:

• CAT 308: Excellent for various attachments
  
• Kubota KX080: Exceptional for lifting and digging
  

[*]Stability and Reach:

• CAT 308: Strong performance in heavy work
  
• Kubota KX080: Solid stability and reach
  

Real-World Applications: Choosing the Right Excavator
Choosing between the CAT 308 and the Kubota KX080 depends on the specific needs of the job site. For example, if an operator is working in tight spaces but needs more lifting power, the KX080 may be the better choice due to its higher horsepower. However, if hydraulic efficiency and digging power are paramount, the CAT 308 offers superior performance in these areas.

• Urban Work: Both machines are well-suited for urban work, where compactness is crucial, but the CAT 308 might edge out in terms of hydraulic flow, making it ideal for tasks that require precise control, such as digging trenches for utilities.
  
• Landscaping and Grading: For projects requiring frequent use of various attachments, such as rippers, augers, and buckets, the CAT 308 provides a more versatile hydraulic system. However, for projects that require frequent lifting of heavy loads, the KX080 offers superior lifting capacity due to its larger engine power.
  

Conclusion
Both the CAT 308 and Kubota KX080 are exceptional compact excavators, each with its own strengths. The CAT 308 stands out for its hydraulic performance and efficiency, making it a reliable choice for versatile work. The Kubota KX080, on the other hand, shines with its higher horsepower and lifting capacity, making it ideal for heavy-duty tasks. The choice between the two depends on the nature of the work, the need for hydraulic power, and the machine's maneuverability. Either way, both machines continue to prove themselves as essential tools for contractors and operators in a variety of industries.