Excavator Size Classes
Excavators come in a variety of sizes to suit every project, from backyard landscaping to large-scale commercial construction. Understanding the benefits and challenges of different sizes of excavators can help you make an informed decision about the right size excavator for your job. There are three primary excavator size classes, according to the weight of the machine.
Mini excavators are any excavators that weigh less than seven metric tons. These small excavators are sometimes called compact excavators, and are perfect for tight job sites. Mini excavators can maneuver in small spaces for landscaping tasks such as digging holes for trees or trenches for pipes. Mini excavators often have zero or near-zero tail swing, so operators can use them comfortably around buildings and other structures. For job sites with many pipes or gas lines underground, mini excavators offer greater precision than larger digging equipment.
Another benefit of mini excavators is that they are easy to transport on a truck or trailer and require less fuel than larger excavators. Because they are lighter, mini excavators can operate on soft terrain without tearing up the ground, or on finished sites without damaging the sidewalks or pavement. However, mini excavators are not as powerful as larger excavators and may not be able to provide the necessary dig depth or lift capacity for every job.
Standard-sized excavators weigh between seven and 45 metric tons. These versatile excavators are the most common size for commercial construction projects, and offer enough power and hauling capacity to handle a variety of tough jobs. Many hydraulic standard excavators can also support a variety of work tools, so contractors can customize their excavator to suit their project needs.
Standard excavators are still easy to maneuver and can significantly increase productivity on a job site. However, these more massive excavators may cause damage to finished sites or soft soil. Depending on their size, reach and tail swing, a standard excavator may also be challenging to operate in tighter spaces. Conventional excavators that fall on the heavier end of this excavator weight class could also pose transportation and storage challenges.
You may sometimes see standard excavators broken into two excavator weight classes — small and medium excavators. Small excavators are those at the bottom of this size class that weigh between 7 and 10 tons. The small size and low tail swing of midi excavators mean they are useful for many of the same tasks as mini excavators, but offer more power, reach and dig depth.
These hefty excavators weigh more than 45 metric tons and are suited for heavy-duty jobs. Large excavators provide serious power for major commercial construction projects or large-scale demolition. Large excavators can be valuable for digging foundations for shopping centers or apartment complexes, or moving large volumes of soil for civil engineering tasks. Although transportation and storage of large excavators can be challenging, a large excavator may be worth the investment if you need to tackle serious excavation projects with ease.
What Size Excavator Do I Need?
With so many excavator types and sizes available, choosing the right excavator for your project requires some careful consideration. The right excavator will provide the power and strength you need to get the job done efficiently while offering the lowest possible operating cost. When you take time to choose the right size excavator, you can increase your productivity and boost your company’s profitability.
If you are renting an excavator for a single project, evaluate the requirements for that project and work site when choosing your excavator. If you are purchasing an excavator for long-term use, consider the types of projects your company typically takes on. Choose an excavator that will meet your common job requirements and perform well on the sites where you most often work. To make the most of your investment, look for an excavator that can also keep up with your company’s growth in the future.
Source by web