- Crawler Excavators Crawler excavators, unlike other large excavators, run on two endless tracks. This type of excavator is mostly used for mining and heavy-duty jobs. These excavators are also known as compact excavators and use hydraulic power to lift large amounts of soil and debris. The chain wheel system of crawlers enables them to slide down climb hills with less risk. This makes these excavators suitable for grading and landscaping uneven hilly areas. While slower than other types of excavators, crawlers provide greater stability, flexibility, and balance.
- Suction Excavators These excavators are also known as vacuum excavators. They feature a suction pipe which produces powerful suction and is capable of providing 400 horsepower. Suction excavator releases a water jet first to loosen the land. The suction pipe, which features sharp teeth at the end, then creates a vacuum that sucks up debris and soil up to 200 miles/hour. Suction excavators are best used for delicate underground applications as they can reduce the risk of damage by over 50 percent.
- Dragline Excavators These excavators are large and function with a different process. A dragline excavator uses a hoist rope system for operating. This hoist rope system attaches to the bucket through a hoist coupler. There is a dragline that is affixed to the other side of the bucket and runs from bucket to the cab. the bucket is raised and lowered by the hoist rope, while the dragline is used to pull the bucket towards the driver. Draglines are usually assembled on the job site due to their weight. The unique system of dragline excavators is mostly used in large-scale projects, such as canal dreading etc.
- Long Reach Excavators As the name suggests, these excavators feature a longer arm and boom sections. Long reach excavators are designed for better operations in hard-to-reach areas. The extendable arm of this type of excavator can reach over 100 ft. horizontally. These excavators are mostly used for demolition projects, such as structural crumpling and destructing applications constructed over water. Different accessories that can be affixed to its arm as well to perform other functions like cutting, crushing, and shearing.
- Skid Steer Excavators Unlike other excavators, skid steers have buckets and booms that face away from the driver. This positioning allows the attachments of the excavator to reach over the cab, making them suitable for more narrow areas and tricky turns. These excavators are mostly used for site cleaning, digging pools, debris removal, and residential work, where the space is limited and things are more spread out.
Different Excavator Types on the Construction Site
When you have to lift huge amounts of soil, an excavator becomes a must on your construction site. Excavators are earth moving vehicles that come with a bucket, rotating cab, movable tracks, and an arm. All these components provide the excavators with superior mobility and digging power which allows this equipment to perform several functions. These functions range from breaking holes and digging trenches to excavating mines and lifting away waste.