Drag Head - manufacturer, factory, supplier from China

Oil large size suction pipe

• Brand: UniSite

• Packaging: bulk package and bulk vessel transportation container package and container transportation

• Min. Order: 10 Piece/Pieces

• Certificate: CCS/ISO/BV

The suction pipe is main part of Trailing suction hopper dredger through suction pipe from the seabed dredging ship the dredging method is similar to a vacuum cleaner Ship fitted with one or several pumps centrifugal pumps suck up water from the sea floor and mud into the hopper of the ship The specifications of our...

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Pump suctions weld steel pipe

• Brand: UniSite

• Packaging: bulk package and bulk vessel transportation container package and container transportation

• Min. Order: 10 Piece/Pieces

• Certificate: CCS/ISO/BV

Suction pipe plays an important role in loading and discharging From the side of the ship one or two suction pipes descend to the bottom of the seabed On the end of the pipe a so called trailing drag head is connected This head is comparable to a large vacuum cleaner and is trailed along the seabed In the head there...

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Steel Boat Arm Pieces

• Brand: UniSite

• Packaging: bulk package and bulk vessel transportation container package and container transportation

• Min. Order: 1 Piece/Pieces

• Certificate: ISO/BV/CCS

The arm piece can be used on a trailing suction hopper dredger A trailing suction hopper dredger TSHD trails its suction pipe when working The pipe which is fitted with a dredge drag head loads the dredge spoil into one or more hoppers in the vessel When the hoppers are full the TSHD sails to a disposal area and...

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Frame large steel gantry

• Brand: UniSite

• Packaging: bulk package and bulk vessel transportation

• Min. Order: 1 Piece/Pieces

• Certificate: ISO

Gantries are available in a wide range of sizes The gantry is located near the drag head and mainly consists of a fixed gantry part a pivoting A frame a hydraulic cylinder and a guide sheave for the hoisting wire The standard series consists of drag head intermediate and trunnion gantries To produce our products with...

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Steel lifting crane gantries

• Brand: UniSite

• Packaging: bulk package and bulk vessel transportation

• Min. Order: 1 Piece/Pieces

• Certificate: ISO

The fixed part of the drag head gantry is a closed steel construction welded on deck The gantry is equipped with a swiveling sheave which adjusts automatically to the direction of the hoisting wire and provided with proximity switches for detecting of pipe positions The winch is remote controlled and includes a multi...

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Hydraulic Water Overflow Pipe

• Brand: UniSite

• Packaging: bulk package and bulk vessel transportation container package and container transportation

• Min. Order: 1 Piece/Pieces

• Certificate: CCS/ISO/BV

When the hopper is filled up to the overflow pipe the low density mixture at the top of the hopper content overflows through this pipe and consequently the density of the hopper content increases The loading of the hopper than usually continues until the overflow losses become so high that it is no longer economical...

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Customized dredger turning glands

• Brand: UniSite

• Packaging: bulk package and bulk vessel transportation container package and container transportation

• Min. Order: 1 Piece/Pieces

• Certificate: CCS/ISO/BV

Turning glands are designed to allow pipes and components to safely rotate around their axis ensuring enhanced manoeuvrability and greater safety even under heavy working conditions They are available in three types Ball turning gland with packing BTG Disc turning gland and Turning gland with rubber lip seal Features...

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Custom steel drag head

• Brand: UniSite

• Packaging: bulk package and bulk vessel transportation container package and container transportation

• Min. Order: 1 Piece/Pieces

• Certificate: CCS/ISO/BV

The dredge drag head is a steel structure that is connected to the dredger by a suction pipe Supported by the gantries and by using hydraulic winches the dredge drag head and suction pipe are let down onto the sea bottom in order to suck a mixture of water and sand Benefits of drag head optimal draghead bottom contact...

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Marine welded drag heads design

• Brand: UniSite

• Packaging: bulk package and bulk vessel transportation container package and container transportation

• Min. Order: 1 Piece/Pieces

• Certificate: CCS/ISO/BV

In order to dredge in waves the suction pipe is suspended from special davits which operate with heave compensation to ensure that the drag head nozzles stay in contact with the sea bed The control of mixture of water and sand is done by a so called dredge drag head visor The visor controls the amount of water that...

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Marine steel head drags

• Brand: UniSite

• Packaging: bulk package and bulk vessel transportation container package and container transportation

• Min. Order: 1 Piece/Pieces

• Certificate: CCS/ISO/BV

To cut the sea bed the dredge drag head is equipped with replaceable teeth and water jet nozzles The nozzles are placed at the front of the dredge drag head and used to cut the sand at the sea bed vertically while the replaceable teeth are placed at the back to cut horizontally The drag heads contributes to lower fuel...

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Trailing suction hopper dredger design

• Brand: UniSite

• Packaging: bulk package and bulk vessel transportation

• Min. Order: 1 Piece/Pieces

• Certificate: CCS/ISO/BV

Trailing suction hopper dredgers TSHD are used for the excavation and transportation of materials such as sand gravel and silt They can be found operating in projects around the world including harbour construction channel maintenance coastal protection beach renourishment and land reclamation Properties A trailing...

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Suction trailing hopper dredgers

• Brand: UniSite

• Packaging: bulk package and bulk vessel transportation

• Min. Order: 1 Piece/Pieces

• Certificate: CCS/ISO/BV

A Trailing Suction Hopper Dredger TSHD is mainly used for dredging loose and soft soils such as sand gravel silt or clay One or two suction tubes equipped with a drag head are lowered on the seabed and the drag head is trailed over the bottom A pump system sucks up a mixture of sand or soil and water and discharges it...

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Customized cutter dredge head design

• Brand: UniSite

• Packaging: bulk package and bulk vessel transportation frame container package and frame container transportation

• Min. Order: 1 Piece/Pieces

• Certificate: ISO/CE

Cutter Head is one of the key structures of a CSD for it largely determines the production quantity and the dredging efficiency The cutter heads can be tailor made to customer requirements or selected from the wide range of models available The cutter heads are equipped with in house developed and patented cutting...

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Steel cutter head design

• Brand: UniSite

• Packaging: bulk package and bulk vessel transportation frame container package and frame container transportation

• Min. Order: 1 Piece/Pieces

• Certificate: ISO/CE

The basic cutter head skeleton includes a hub a ring and several curved arms that link the hub and ring together The adapters with teeth or replaceable cutting edges are fitted on the front side of the cutter arm Optimised arm profile spacing and size and tooth location and orientation mean top production and minimal...

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Marine dredge cutter heads

• Brand: UniSite

• Packaging: bulk package and bulk vessel transportation frame container package and frame container transportation

• Min. Order: 1 Piece/Pieces

• Certificate: ISO/CE

Cutter head is a Cutter Suction Dredger component Cutter heads are designed and manufactured to meet the most harsh environments of dredging and mining and being able to cut soil of different type of material like slurry mud sand compacted sand gravel rocks and minerals Cutter heads are designed to have the following...

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