Comparison of Compact Excavators: Bobcat E85, John Deere 75-85G, Case, and CAT 307/308

[MikePhua]

When it comes to compact excavators, operators have a range of options to choose from, each offering unique features, capabilities, and performance characteristics. Among the most popular models in this category are the Bobcat E85, John Deere 75-85G series, Case, and CAT 307/308. These machines are designed to tackle a variety of tasks, from digging to lifting and grading, making them essential tools for construction, landscaping, and utility work. In this article, we will compare these machines based on key features, performance, and overall value to help you make an informed decision.
Overview of Compact Excavators
Compact excavators, also known as mini-excavators, are versatile machines designed for projects that require digging, lifting, and reaching in tight spaces. These machines offer superior maneuverability, making them ideal for residential, commercial, and industrial construction sites where larger machines might struggle to operate efficiently. Typically, compact excavators weigh between 6,000 and 18,000 pounds and are powered by small, efficient engines that provide ample digging force while maintaining low fuel consumption.
In recent years, manufacturers like Bobcat, John Deere, Case, and Caterpillar have all developed compact excavators that are known for their reliability, ease of operation, and performance. While the size and weight of these machines may vary slightly, they all feature modern technologies designed to enhance safety, efficiency, and comfort for operators.
Bobcat E85: Strengths and Weaknesses
The Bobcat E85 is a popular choice among operators who require a machine with powerful performance in a compact package. This mini-excavator is equipped with a 68-horsepower engine, making it one of the more powerful machines in the 8-ton class. The E85 has an impressive digging depth of around 12 feet, with a maximum digging reach of 19 feet, which allows it to tackle most residential and light commercial tasks with ease.
Strengths of the Bobcat E85:

• Powerful Engine: The 68-horsepower engine provides ample digging and lifting power.
  
• Advanced Hydraulics: The E85 features a high-flow auxiliary hydraulic system, allowing it to handle a variety of attachments, such as augers, breakers, and grapples.
  
• Compact Size: With its compact design, the E85 is well-suited for working in tight spaces.
  
• Operator Comfort: The cab is spacious and provides excellent visibility, making it comfortable for operators to use during long shifts.
  

Weaknesses of the Bobcat E85:

• Higher Operating Costs: The fuel consumption of the E85 can be slightly higher compared to some other machines in its class.
  
• Limited Lifting Capacity: While the E85 is strong, its lifting capacity is not as high as some larger machines, which can be a limitation on certain projects.
  

John Deere 75-85G: A Versatile Performer
John Deere’s 75-85G series represents the brand’s commitment to building reliable and efficient compact excavators. These machines are equipped with engines ranging from 55 to 75 horsepower, depending on the model, and provide a great balance of performance and fuel efficiency. With a maximum digging depth of 13.5 feet and a reach of over 19 feet, the 75-85G series is highly capable on job sites requiring both power and agility.
Strengths of the John Deere 75-85G:

• Excellent Hydraulics: The G-series features a hydraulic system designed for high efficiency and power, making it easy to switch between tasks and attachments.
  
• Durable Build: John Deere machines are known for their durability and longevity. The 75-85G series features reinforced components to handle tough conditions.
  
• Comfortable Operator Environment: The cabs on these machines are designed to reduce operator fatigue, featuring ergonomic controls and excellent visibility.
  
• Versatility: The 75-85G is designed to perform a variety of tasks, from digging to lifting, grading, and even demolition, making it a versatile option for many applications.
  

Weaknesses of the John Deere 75-85G:

• Higher Maintenance Costs: Like many heavy-duty machines, the John Deere 75-85G series can incur higher maintenance costs over time.
  
• Heavy for Its Class: While the John Deere offers excellent lifting capacity, it is slightly heavier than some of its competitors, which may reduce maneuverability on some sites.
  

Case Compact Excavators: Performance and Durability
Case has a strong reputation for building durable and high-performing equipment, and its line of compact excavators is no exception. The Case CX75C, for example, offers a 55-horsepower engine and a digging depth of 12 feet, making it a solid choice for residential and light commercial work. One of the standout features of Case mini-excavators is their simplicity in design, which contributes to ease of maintenance and reliability.
Strengths of Case Excavators:

• Simple Maintenance: Case excavators are designed with ease of maintenance in mind, featuring large access points and user-friendly layouts.
  
• Fuel Efficiency: Case machines are typically more fuel-efficient than some of their competitors, providing operators with longer working hours for less cost.
  
• Good Lift Capacity: The Case CX75C offers solid lifting capabilities for its class, making it suitable for a variety of tasks.
  

Weaknesses of Case Excavators:

• Less Advanced Technology: While durable and efficient, Case mini-excavators tend to lack some of the advanced technologies found in competitors, such as advanced monitoring systems or high-flow hydraulics.
  
• Cab Comfort: The cab design on Case excavators, while functional, may not offer the same level of comfort and ergonomic design as other machines like Bobcat or John Deere.
  

CAT 307/308: CAT's Heavy Hitters in the Compact Excavator Market
Caterpillar’s 307 and 308 models are known for their rugged design and high performance. The CAT 307 has a powerful 70-horsepower engine and provides a digging depth of around 13 feet, making it a great option for those needing both strength and reach. The 308 offers similar features, with an engine rating of 75 horsepower and a digging depth of up to 14 feet, positioning it as an excellent choice for larger, more demanding jobs.
Strengths of CAT 307/308:

• Exceptional Lift Capacity: CAT excavators are known for their impressive lift capabilities, making them ideal for tasks such as lifting heavy materials or performing grading work.
  
• Advanced Technology: CAT compact excavators come equipped with advanced features like automatic fuel-saving systems and telematics, which help monitor the machine's performance and reduce fuel consumption.
  
• Durability: As with all Caterpillar machines, the 307/308 is built to withstand the most challenging job site conditions, providing reliability even under heavy loads.
  

Weaknesses of CAT 307/308:

• Cost: CAT machines tend to be priced higher than other compact excavators, which can be a limiting factor for those working on tighter budgets.
  
• Fuel Efficiency: While CAT machines are robust, their fuel consumption may be higher compared to machines with smaller engines, which can lead to higher operating costs over time.
  

Final Thoughts: Which Compact Excavator is Right for You?
Choosing the right compact excavator depends largely on the specific needs of your job site and budget. Here’s a quick summary of the key takeaways:

• Bobcat E85: Ideal for those seeking a compact and powerful machine for tight spaces, though it may have higher fuel costs and limited lifting capacity.
  
• John Deere 75-85G: A versatile, durable option with excellent hydraulic performance, though its heavier weight may limit maneuverability.
  
• Case Excavators: Known for their fuel efficiency and ease of maintenance, Case machines may lack some of the advanced features of competitors.
  
• CAT 307/308: Best suited for those needing high lift capacity and durability, but expect higher initial costs and fuel consumption.
  

Each brand offers unique advantages, and selecting the best option depends on your specific requirements. By considering factors like operating costs, comfort, and the types of tasks you’ll be performing, you can choose the machine that will deliver the best results for your projects.