A wheel loader uses an arm to lift and lower its bucket, and a bell crank is used to open and close its bucket. Wheel loaders can lift almost anything such as debris, gravel, soil, dirt, pallets, etc.
The crawler excavator (also referred to as the standard excavator) is called a crawler because it runs on two rotating tracks instead of wheels—in much the same way a tank does.
Wheeled excavators are a variation of the popular crawler excavator, switching the latter's tracks for a four-wheel-drive undercarriage. Wheeled excavators typically use powerful planetary axles, which are designed to oscillate and allow the machine to negotiate uneven terrain.
Bulldozer, also called Dozer, powerful machine for pushing earth or rocks, used in road building, farming, construction, and wrecking; it consists of a heavy, broad steel blade or plate mounted on the front of a tractor.
A skid loader is a small construction vehicle used for a variety of tasks. Skid steers typically include a bucket as the default attachment, but you can outfit them with many different attachments, allowing skid steers to assist with all sorts of construction and landscaping projects.
A road roller (sometimes called a roller-compactor, or just roller) is a compactor-type engineering vehicle used to compact soil, gravel, concrete, or asphalt in the construction of roads and foundations.
A grader, also commonly referred to as a road grader, motor grader, or simply a blade is a form of heavy equipment with a long blade used to create a flat surface during the grading Certain graders can operate specialized tasks like underground mining.
the backhoe loader is heavy construction equipment that consists of a tractor-like unit fitted with a loader-style shovel/bucket on the front and a backhoe on the back. Backhoes are also great for digging fence post holes or minor excavation jobs, such as digging small ponds and water features.