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Wednesday, April 8, 2015

Construction Machinery- Excavator

Excavator
Excavators are heavy construction machineries. It also called diggers. They are made up by multiple parts such as stick, bucket and cab on rotating platform. Many people believe excavators are only be used for digging of trench, holes and foundation. Actually, excavator can also be used as mining, scraping and moving large objects and river dredging.



 river dredging work

Many modern excavators are used for building and clearing building debris. Excavator also can be useful machineries that can do the work that we did not even think such as driving piles and brush cutter. Each type of construction excavator works a bit differently because they are designed for a specific purpose.

driven piling work

The main part of an excavator consist of
·       Motor or driving system

Excavators can have a variation of different motors. The motor can be run by petrol, diesel and electric. Electric excavators are really rare but exist in construction work.

·       The arm

“attachment” is another word of the arm. The most regular termination is clawed bucket. The arm is occasionally controlled by an advanced system of hydraulics with levers that are inside of the cab of the excavator

·       Excavator locomotion

most excavators have a design that grants a 360-degree movement of the arm and the cab. Track design allow the cab and arm to swivel without lose  flexibility





 Excavator components