Excavators do a great job digging or moving dirt,rocks,sand,gravel and rubble. They are used in demolition jobs with a hydraulic hammer attachment. Additionally excavators use attachments such as buckets in various sizes,grappler,hydraulic hammer,and the hydraulic thumb. The two main sections of an excavator are the undercarriage and the house. The undercarriage includes the blade (if fitted),tracks,track frame, and final drives,which have a hydraulic motor and gearing providing the drive to the individual tracks, and the house includes the operator cab,counterweight,engine, fuel and hydraulic oil tanks.
available dig depths
A compact or mini excavator is a tracked or wheeled vehicle with an approximate operating weight from 0.7 to 8.5 tonnes. It generally includes a standard backfill blade and features independent boom swing. Most mini hydraulic excavators have three distinct assemblies: house, undercarriage and workgroup. The excavator's slew (rotation) and travel functions are also activated by hydraulic fluid powering hydraulic motors.
available dig depths
Excavators used in mining operations can be up to five stories high. Minor landscape jobs can be worked using a rubber track mini-excavator that stands little more than seven-feet high. Deciding what size of excavator to rent for a job depends on two factors: how much material you need to move and how much reach you need with the boom and arm.
Rubber-track mini-excavators are available with buckets that are no larger than a 5-gallon bucket and a boom and arm with only ten-feet of reach. Larger excavators, those that are still small enough to be transported on a low-boy trailer, can have up to 30 feet of reach and hold almost a yard of material.
Excavators are used to dig trench, remove material, place material, and landscape on a large scale. Excavators are also extremely adept at demolition and there are a variety of rental implements that an operator can attach to the arm of a track hoe besides a bucket. Excavators are commonly used in tandem with dump trucks, end dumps and side dumps. Track hoes are practical rental machines for the following types of jobs: