An excavator is an important piece of heavy equipment for most construction projects. They are often referred to as diggers, and are used for all kinds of jobs like material handling, landscaping, demolition, mining projects, river dredging and construction.
An excavator consists of a boom, a dipper (also called stick) and bucket. All of these things connect to a cab that sits on a rotating house. This allows the excavator to rotate around a house in full 360 degrees. Excavators can come with either tracks or wheels depending on the manufacturer and what purpose the excavator is intended for.
They also come in a variety of sizes and can weigh up to 82,000 kg. An excavator can have many attachments. These attachments usually take the place of the digging bucket and help to get the job done. By attaching an auger, drill, ripper or rake in place of the bucket, the excavator becomes multi-purpose equipment and can be used for many different things.
Choosing the right excavator for a construction project is important, and requires planning. The role an excavator will play on the construction site depends on the type of excavator to be used for such work.
Types of Excavators
An excavator can complete earthmoving projects quicker and efficiently when used to its full capacity. The different sizes allow them to be used in construction projects and renovations. Wheeled excavators are different from track excavators in that their wheels can be used on finished roads and smaller walkways.
There are other types of excavators which include the cable and the hydraulic excavator. Cable excavators use steel wires and cables to move the main parts.
Hydraulic excavators use levers to control the movement of the hydraulic fluid to push and move the cylinders that control the boom and bucket of the excavator.
There are six types of excavators: Crawler, Dragline, Suction, Skid steer, Long Reach, Mini Excavator, and Wheeled Excavator.
This type of excavator is used for mining, trench digging, and landscape grading. It is the most commonly recognised excavator in the world. It is a wheeler-type of excavator.
A dragline excavator is a large type of excavator. It uses a hoist rope and dragline system for earthmoving underwater projects, pile driving and road excavations.
Suction excavators use water jets and high-pressure vacuums to clear dirt, soil and land debris. They are operated out of a wheeled vehicle and used for underground purposes.
Skid steer Excavators
This is a small type of excavator with buckets for scooping. It is used for residential projects and small construction tasks.
Long Reach Excavators
The arms of a long reach excavator extend up to 100 feet. They are used for heavy-duty digging and industrial construction projects.
This type of excavator is the smaller version of a crawler excavator. Mini excavators are often called mini diggers. They are used in narrow job sites and job sites with delicate landscape.
The wheeled excavator is a regular excavator but fitted on wheels, not tracks. They are mostly used in city projects.