Excavation Related Machineries

Excavation Related Machineries

Power ShovelDragline Clam ShellBack HoeTrenching Machine

Power Shovel

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POWER SHOVELS Power Shovels are used primarily to excavate earth and load

it into trucks. They are capable of excavating all classes of earth, except

solid rock, without prior loosening, like in quarries, mines in any road projects etc.

Power shovels are considered as basic tool for excavating the materials and loading.

They may be mounted on crawler tracks, in which case they are referred to as crawler mounted shovels. Such shovels have very low travel speeds.

However, they may be mounted an rubber-tired wheels. Single-engine self-propelled units are powered and operated from excavator cab. The non-self-propelled units mounted on the rear of tracks, which are referred to as truck-mounted, have separate engines for operating them.

Dragline

DraglineA dragline excavator is especially useful when

there is need for extended reach in excavating or when material must be excavated from

underwater.Draglines are used to excavate material and

load it into hauling units or to deposit it in levees and spoil piles near the pits from which it is

excavated.

DRAGLINE BUCKET

A dragline bucket consists of three parts: the basket, the arch, and the cutting edge. Buckets are generally available in three types: (1) light duty, (2) medium duty, and (3) heavy duty.

Clam Shell

Clamshells are used primarily to remove materials from vertical

excavations such as cofferdams, pier foundations, and sheet-lined trenches. There are hydraulic clamshell buckets

that are mounted on the stick of hydraulic hoes.

The two jaws of a clamshell bucket clamp together when the bucket is lifted

by the closing line.

Back Hoe

Back HoeA backhoe, also called a rear

actor or back actor, is a piece of excavating equipment or digger

 consisting of a digging bucket on the end of a two-part articulated arm.

The section of the arm closest to the vehicle is known as the boom, and the section which carries the bucket is

known as the dipper or dipper-stick . The boom is generally attached to the vehicle through a pivot known as the king-post, which allows the arm to slew left and right, usually through a total of around 200

degrees.

Trenching Machine

Trenching Machine

A trencher is a piece of construction equipment used to dig trenches,

especially for laying pipes or cables, for installing drainage, or in preparation for

trench warfare.

Trenchers may range in size from walk-behind models, to attachments for a

skid loader or tractor, to very heavy tracked heavy equipment.