Excavators are hydraulic in nature. They come under the Earthmoving Equipment or Heavy Equipment or Construction Equipment category. It consists of a boom, a dipper (or stick), a bucket and a cab on a rotating platform known as “house”. The house is placed over the top of an undercarriage which has tracks and wheels. Though they are often mistaken as power shovels, they move and function only through the use of hydraulic fluid, with hydraulic cylinders and hydraulic motors.
- Excavators are multifunctional. They are used for different purposes such as:
- Digging holes for trenches or foundations
Construction - Mining, both on Opencast Mining and Underground Mining or Sea Bed Mining
Material Handling - Cutting with hydraulic attachments
- Forestry work, like Mulching
- Landscaping and grading
- Dredging on River Bed or Sea Bed
- Snow removal with snow blower or snow plough attachment
- Drilling Shafts and Driving Piles
Some of the major manufactures are:
- Bobcat
- Case Corporation
- Caterpillar Inc
- Doosan
- Hitachi
- Hyundai
- John Deere
- Komatsu
- ThyssenKrupp
- Kobelco
- Liebherr
- LiuGong
- L&T
- Mitsubishi
- Sandvik
- Sany
- Tata Hitachi
- Terex
- Volvo
- XCMG
