The Ideal Excavator Machines For Your Construction Tasks The excavator is a powerful machine which is generally used for digging and demolition tasks. There are different excavator types on the market, and each excavator comes with unique specifications and configuration. In my opinion, the most common excavators that can be found on the market are: long reach excavator, crawler excavator, and wheeled excavator. Click here to see which excavator type is ideal for your application.