Excavators are earthmoving equipment used for construction jobs, digging purposes as well as various lifting and carrying tasks in various applications. Excavators are consists of Engine, Pump, boom, arm, bucket, cabin, undercarriage as main components. These excavators are also used along with various special attachments such as rock breakers, coupler, grapples, clamshell, cutters, shears etc. Excavators are important machines used in various infrastructures, construction & development work. Excavator size will vary with required amount of task to be performed considering factors like productivity, fuel efficiency, and multi-functional purposes.