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Marine welded drag heads design

  • Marine welded drag heads design
  • Marine welded drag heads design
  • Marine welded drag heads design
  • Marine welded drag heads design

Marine welded drag heads design

    Payment Type: L/C,T/T
    Terms of Trade: FOB,CFR,CIF
    Min. Order: 1 Piece/Pieces
    Delivery Time: 30 Days
    Packaging: bulk package and bulk vessel transportation container package and container transportation
    Brand: UniSite
    Transportation: Ocean,Land
    Place of Origin: china mainland(zhejiang)
    Certificate: CCS/ISO/BV

Basic Info

Model No.: USA-227

Product Description

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 enters along with the sand. In some cases this visor is hydraulically controlled.

Marine welded drag heads design


Classification of drag head

Universal Drag heads
Our universal drag heads offer a combination of high excavation capabilities for loosening the soil and optimized hydraulic properties for mixture transportation. High mixture concentrations are possible in many different kinds of soil. Concentrations are more stable even in more compact soils, where the water flap is blocked in an optimized position. Production can be optimized by controlling the contact force of the drag head to the ground through a swell compensator system.
The soil to be dredged is loosened by cutting teeth at the visor and the effect of pressure water supply through special nozzles. The visor is equipped with an adjustable water flap for the supply of additional transport water when dredging in soft grounds.

US Drag heads
Our US drag heads are particularly suitable for dredging firmly-packed and strongly-binding types of soil. Due to their modular design, the US drag head can easily be converted into a drag head with a turbulence visor or a universal visor. The US visor is equipped with knives and ripping teeth to loosen compact soils. Pressure water is used for fluidization of the ground. The US visor has adjustable water inlets on top, allowing the supply of additional transport water in soft grounds. Wide drag heads are equipped with two independent visors, so that the whole suction area is in close contact to the ground even on uneven ground.
The US visor is equipped with knives and ripping teeth to loosen compact soils. Pressure water is used for fluidization of the ground. The US visor has adjustable water inlets on top, allowing the supply of additional transport water in soft grounds.

Active Drag heads
Our active drag heads offer the highest production rates possible, even in compact soils and at varying dredging depths. The pressure nozzles can be arranged at the visor carrier and/or at the visor itself according to customers' preferences. The hydraulic power pack can be installed on deck or as integrated part of the drag head. Various control systems are available, enabling efficient use of the active drag head. The basic version of the control system includes continuous position indicators and switches for bridge desk mounting. Advanced dredge control and automation systems automatically adjust the visor position and water flap. Visor position can be controlled, for instance, with constant position, pre-selected grab depth or cylinder force and water flap position to suction pressure at the drag head.


We have a perfect managing system and quality control system which from initial work, to process control, to final control, forming the whole process traceability with a good command of quality and production schedule.
You can see the quality of all our previous orders were guaranteed based on our good procedure and service.

steel pontoon boat


steel boat pontoon

UniSite group has a perfect managing system and our staff who are professional in technology are committed, passionate, efficient.

Safety & quality are the key factors of UniSite group with good QHSE experience and ISO9001/BV certificate.

With professionalism, vitality, innovation, respect, team spirit, UniSite culture (corporate values, corporate philosophy and behavior shaping) is continuously developing, along with our company from its foundation.

UniSite group is able to offer our client best possible and most sustainable solutions to their requirement.



Photos of our Marine welded drag heads design


Marine Welded Drag Heads Design price Marine Welded Drag Heads Design Steel Welded Drag Heads Welded Drag Head




How to contact us?

Send your Inquiry Details in the Below, Click "Send" Now!


Unisite Group Ltd.

 Profile

UniSite group was established in 2008 in Ningbo - Chinese second largest port, dredging relevant products manufacturing & supplying since 2005, that is characterized by visible leadership, vitality, innovation, long-term vision and a sound financial position.

As an international partner, we are specialized in providing comprehensive service of dredging, land reclamation, offshore projects, marine engineering, piling works, municipal engineering, mechanical engineering, construction machinery, oilfield projects and environmental remediation projects.

The group has a perfect managing system and our staff who are professional in technology are committed, passionate, efficient. Thanks to the knowledge, the experience and the skills of our work team, we are able to offer our client best possible and most sustainable solutions to their requirement. We are one of the leading steel parts and service providers for dredging and marine engineering in China.

UniSite culture consists of corporate values, corporate philosophy and behavior shaping, which is the core of responsibility and breakthrough. Based on this core, with professionalism, vitality, innovation, respect, team spirit, UniSite culture is continuously developing, along with our company from its foundation.


Activities and projects

1)UniSite`s first core activity: serve for dredging and marine projects

Provide service and relevant parts for dredgers, including dredger construction, repairing and maintenance.

Provide items for dredging, land reclamation, offshore, marine engineering, piling works, municipal engineering, oilfield projects and environmental remediation projects.

Product range:

Steel Structures and Pipes

Casting and Pump parts

Machining Parts whatever big or small

Piling and Parts

Product list:

- Pontoon; Floating platform; Marine work platform; Buoy; Float; Fender

- Anchor box system;

- Sinker pipe line; Shore pipe line; Floating pipe line; Piling pipe; Sheet pile;

- Y piece; Bend; Fall pipe; Ball joint pipe;

- Rubber hose;

- Small dredger: standard cutter suction, bucket, grab, shovel stone, mud and stone construction

- Spud; CSD Spud;

- Suction pipe; Arm piece; Jet pipe;

- DW pipe; Wear resistant pipe; Structure pipe; Shipping building pipe;

- Pump; Pump spare parts(impeller, shell, casing, liner, cover)

- Branch casting pipe; Casting bend;

- Loading box; Bottom door; Overflow; Fender frame; Bow coupling; Anchor; Hopper panel; Basket; Bucket; Clamp ring; Drag head; Cutter head; Cutter ladder;

- Sliding piece; Gantry; Turning gland; Chute flap; Kingpin; Cutter platform; Water box; Bow coupling; Anchor; Hopper panel; Hopper door; Basket; Bucket; Bucket wheel; Clamp ring; Close plate; Gantry;Dredge gate valve; Valve body;

- Mooring system(mooring rope, mooring bollard, mooring winch, mooring fairlead, anchor windlass, chain stopper, roller fairlead, wheel fairleader, panama chock, marine mooring rope reel, anchor releaser, marine shutter, pipe clamp)


2) UniSite`s second core activity: serve for machinery and automobile projects

Provide service and relevant parts for mechanical engineering, construction machinery, agricultural machinery, port hoisting machinery, metallurgy, automobile, chemical, marine machinery.

Product range:

Big Machining(machining center, boring and milling, lathe)

Small Machining(cnc, milling, grinding)

Casting (sand, investment)

Die casting

Forging

Stamping and Bending

Product list:

- Machinery Products(like Wind Turbine Generate System Hub, Wind Power Bearing Block, Punching Machine Sliding Block, Punching Machine, diesel power generator base, die casting machine base, injection molding machine base, punch, tank, pump parts, accumulators parts, valve parts, construction parts, agricultural parts etc.)

- Machinery Products

- Auto Products

- Shipping building Products

- Medical Products

- Oil Products


Project


With about 10 years` experience, now our products and service are involved in many projects all over the world. Like:

1)Palm islands construction, World thousand islands construction, Australian coastline and port expansion, Gladstone project construction, Brisbane airport project construction, the Vietnamese government`s port expansion, Panama coastline expansion, Railway tunnel Schuman-Josaphat construction(Belgium), World`s first formal floating sea restaurant construction(Darling Harbour, Sydney), New Suez Canal project construction, Municipal tunnel projects construction(Alger)--




Production and equipment

Equipment list:


pipeline production equipment

machining equipment

welding equipment

bending press equipment

rolling equipment

shears equipment

CNC plasma cutting equipment

advanced paint room and equipment

auxiliary equipment



Technology and Quality

Offering our client best possible and most sustainable solutions to their requirement. Production procedure

Step1: Drawing and technical requirement analysis, production lofting;

Step2: Material cutting, trimming, groove, cleaning, bending, rolling, dimension & NDT inspection

Step3: From part assemble to whole assemble with accurate template and platform, dimension & NDT inspection, welding, dimension & NDT inspection;

Step4: Casting, forging, stamping, machining if necessary

Step5: Final dimension & NDT inspection;

Step6: Surface treatment;

Step7: Package, Loading and Lashing when delivery;

UniSite have a perfect managing system and quality control system which from initial work.

ISO9001-2008/CCS; BV manufacturer capability qualification.

Taken part in the CHINA DREDGING ASSOCIATION

Quality, health, safety and environment (QHSE)

Production guidelines

In-house safety training to our staff

Checking all the production equipment periodically

Preventing pollution, accidents and health hazards, auditing



In order to perform comprehensive service and relevant items to clients' satisfaction, UniSite knows the importance of advanced technology, equipment, quality and continuously invests in advanced production base and equipments. The group has a perfect managing system and quality control system which from initial work, to process control, to final control, forming the whole process traceability with a good command of quality and production schedule.


We are able to offer our client best possible and most sustainable solutions to their requirement.


Company Info

  • Company Name: Unisite Group Ltd.
  • Representative: Yu ZHUOFANG
  • Product/Service: Dredging Parts , Marine Engineering And Parts , Ship Building And Parts , Machining Parts , Casting And Pump Spare Parts , Piling Parts
  • Capital (Million US $): 1,500,000
  • Year Established: 2008
  • Total Annual Sales Volume (Million US $): US$10 Million - US$50 Million
  • Export Percentage: 91% - 100%
  • Total Annual Purchase Volume (Million US $): US$1 Million - US$2.5 Million
  • No. of Production Lines: 6
  • No. of R&D Staff: 5 -10 People
  • No. of QC Staff: 11 -20 People
  • OEM Services Provided: yes
  • Factory Size (Sq.meters): 10,000-30,000 square meters
  • Factory Location: JiaoTou industry park, LiuHeng island, Putuo district, Zhoshan
  • Contact Person: Mr. Kevin Mei
  • Tel: 86-574-87053650
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