2. CONTENT
Introduction
Basic component of dragline
Types of draglines
Applications
Manufacturer company
Operation of a dragline
Cost and dealer
Advantages
Disadvantages
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3. Dragline falls in heavy equipment’s category.
Dragline excavator is used for civil engineering projects
and surface mining.
Dragline is the largest equipment ever built on this planet.
It has the ability to excavate very deep down the earth.
Word drag is used because it has the ability to drag
material at far distance from the machine.
INTRODUCTION
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10. APPLICATIONS
Most suitable for digging softer material.
Useful for excavating trenches.
Mostly used in excavating canals & embankments.
Suitable for loose soils, marshy land and areas containing
water.
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12. OPERATION OFA DRAGLINE
The excavating cycle is started by swinging the empty
bucket to the digging position, while at the same time
slacking off the drag-and the hoist lines.
The bucket is so construction that it will not dump its
contents until the dragline tension is released.
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13. Hoisting ,swinging, and dumping the loaded bucket follow
in that order; then the cycle is repeated .
An experienced operator can cast the excavated material
beyond the end of the boom.
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15. COST AND DEALER
Cost :-
$ 5 million to 100 million USD
(32 crores 50 lakhs to 650 crores INR)
Dealer in India :-
SRB Group, New Delhi, India
Bharat Earth movers limited, Maharashtra , India
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16. ADVANTAGES
it can work on natural ground while power shovel take a
pit or trench.
hauling units do not have to go into trenchusing dragline.
range of working is more than powershovel.
excavated material disposed off in on operation.
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17. DISADVANTAGES
it has less digging force than power shovel
output is less than as compared to power shovel.
extremely high capital cost.
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