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Dredger

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Dredging is an excavation activity or operation usually carried out at least partly underwater, in shallow seas or fresh water areas with the purpose of gathering up bottom sediments and disposing of them at a different location. This technique is often used to keep waterways navigable.

 

It is also used as a way to replenish sand on some public beaches, where sand has been lost because of coastal erosion. Dredging is also used as a technique for fishing for certain species of edible clams and crabs, see fishing dredge.

 

A dredger (or “dredge” as is the general usage in the Americas) is any device, machine, or vessel that is used to excavate and remove material from the bottom of a body of water. For example, a scoop attached to the end of a rope or pole by which a man can draw sediments up from the bottom of a pond is a dredger. Developing this idea further, a motorized crane equipped with a drag bucket or clamshell (grabber) that is used to scoop material from the bottom of a body of water is also a dredger. The crane could be located on the bank, or perhaps mounted on a barge. If the crane is mounted on a barge, the entire vessel is referred to as a dredger.

 

The process of dredging creates spoils (excess material), which are carried away from the dredged area. Dredging can produce materials for land reclamation or other purposes (usually construction-related), and has also historically played a significant role in gold mining. Dredging can create disturbance in aquatic ecosystem, often with adverse impacts.

Spesifikasi Produk

370HP Principal Dimensions and Particulars



Metric
English
GENERAL
Hull Length
10.98 m
36 ft.
Hull Width
3.66 m
12 ft.
Hull Depth
1.22 m
4 ft.
Length Overall 
17.53 m
57.5 ft.
Height Overall (spuds installed and elevated)
8.88 m
29.13 ft.
Height Overall (Spuds, spud hoists, and muffler
removed)
3.2 m
10.7 ft.
Draft - Max. with spuds and ladder raised
.81 m
2.67 ft.
Fuel Storage Capacity
3050 L
800 gals.
Approximate Weight - Lt. and Dry
25,396 kg
56,000 lbs.
DIGGING
DEPTH
Maximum (*)
6.10 m
20 ft.
Minimum
0.9 m
3 ft.

CHANNEL
WIDTH

Maximum @ 40'
Swing each side CL
@Min. Digging Depth
22.25 m
73 ft.
@ Max. Digging Depth
18.29 m
60 ft.
Minimum @ Minimum Digging Depth
(Hull Grounded)
9.3 m
30.5 ft.
PRIME
MOVER 
Caterpillar Diesel Engine
Choice of models available:
CAT 3406
CAT C15
306 kw
328 kw
410 HP
440 HP
CUTTER
Shaft Power
30 kw
40 SHP
Cutting Force
1,815 kg
4000 lbs
Cutting Force per Linear Inch of Edge
29 kg
64 lbs.
Cutter Speed

0 - 39 RPM

Cutter Diameter
800 mm
31.5 in
SWING
WINCHES
Shaft Power
15.4 kw
20.6 HP
Line Pull - First Layer
3,629 kg
8000 lbs
Line Speed - First Layer
0-22.8 m/min
0-75 ft/min
Wire Size
12.7 mm
1/2 in
Drum Capacity
61 m
200 ft.

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