Excavators, also commonly known as diggers, are heavy duty industrial machines that are used to dig and move large quantities of earth. They accomplish this function with a bucket attached to an articulating mechanism composed of a dipper arm that is in turn attached to a boom arm that itself connects to a rotating house, atop which sits a control cab where the operator is located.This whole assembly is attached to a mobile tracked ("crawler") or wheeled base that allows the excavator to be repositioned freely by the operator. Excavators generally rely on diesel engines for power. Tracked excavators are better suited for rough terrain with variable compressibility, where stability and traction may be serious operational concerns. By contrast wheeled excavators are better all-round performers for general work surfaces where stability and traction concerns may be less relevant.
Compact excavators under 10 tons are generally classified as Mini-Excavators. Their smaller size means they are comparatively low powered and are better suited for moving smaller quantities of earth than their larger counterparts. However, it also means they cost less in terms of fuel to operate and are very versatile. They are more maneuverable and capable of operating in tighter areas and can also be transported more easily from site to site. They can thus be employed for smaller and more frequent jobs. Their reduced weight and size package allows them to operate on unfavorable terrain with traction and sinking concerns, where heavier excavators might be unable to function properly.
Excavators serve a specific industrial purpose, but it is a broad and ubiquitous function that they perform with great efficiency, hence they are one of the most widely utilized types of industrial machinery. They are used anywhere general earthmoving capabilities are required and can be found on jobsites across the world, helping prepare land before further work can be performed.Mini-excavators are generally better suited towards smaller jobs specially residential work like digging out spot for tree planting or removing undesired trees, stumps and roots, small-scale demolition, digging up utility lines and piping for repair or maintenance, or excavating in preparation for inset water features or pools to be installed. In general, residential landscaping is better performed with mini-excavators, to help preserve turf and slab. They're also well suited for smaller scale commercial applications like gravedigging and roadside maintenance and repair. They can also be fitted with smaller auger attachments for drilling tasks such as digging up post holes for signage and fence installation.