- Cutter suction dredger - Wheel suction dredger - Trailing
suction hopper dredger - Plain suction dredger - Bucket ladder dredger - Clamshell dredger
- Crawlcat - Backhoe dredger Dredger Components & Services --------------------------------------------------------------------------------
Parts & Services IHC Holland Parts & Services designs and
manufactures dredging installations for new vessels, handles after-sales service and
provides the existing dredging fleet with spare parts. Specialised product engineers
ensure prompt delivery of correct parts assisted by a well organised information system
per product on each unit. For many products on board dredgers, parts can be suplied from
stock. Special gearboxes Meeting extreme demands in dredging (Source : P&D nr. 158
from 2002) IHC Parts & Services develops special gearboxes for application in
dredging. They have been designed to meet the extreme demands in dredging, such as
underwater application, the effective take up of loads from dredge equipment, and precise
control of output speed. Robustness and reliability are key factors in the gearbox
designs. ... (PDF: 266 KB / 2 pages) Click here for complete article Variblock
continuously variable speed gearbox on WATERWAY the 2002 Ship of the Year (Source :
P&D nr. 158 from 2002) This remarkable dredger won the 2002 Ship of the Year award for
its innovative design. The jury report states that this ship is an example of innovative
design. ... (PDF: 135 KB / 2 pages) Click here for complete article Dragheads Many years
practical experience (Source : P&D nr. 157 from 2002) The draghead of a trailing
suction hopper dredger represents the first mechanical contact with bottom material, so
its design, quality and sturdiness are critical in dredging and alluvial mining tasks...
(PDF: 328 KB / 2 pages) Click here for complete article Keeping dredging hardware
profitably at work (Source : P&D nr. 157 from 2002) IHC Holland has been designing and
building dredging systems since early in the nineteenth century. For many of the last
decades it has been the largest dredger builder in the world.... (PDF: 486 KB / 3 pages)
Click here for complete article IHC's 1000th dredging pump for "HAM 318" (Source
: P&D nr. 155 from 2001) In its long history, IHC Holland has steadily become the free
world's market leader in development and building of dredging equipment. Since 'recherche
et education permanente' is deeply ingrained in IHC's corporate culture...... Click here
for complete article The need for different pump types By Ing. C.H. van den Berg, Senior
Project Manager R&D, MTI Holland BV. (Source : P&D nr. 154 from 2001) There can be
no doubt that the centrifugal dredge pump is the very heart of the dredger. The dredge
pump adds energy to the mixture, enabling it to move from the bed of the dredging area to
the dump location. This energy is also referred to as the manometric head. ..... Click
here for complete article
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IHC Systems IHC Holland, leading suppliers to the dredging world, work through a number of
business units, each of which serving its specific market sector. With over 40 years of
experience, IHC Systems is market leader in developing, manufacturing and supplying
instrumentation and automation systems for the dredging industry, the alluvial mining
industry, sand and gravel mining and related industries. Click here for IHC Systems
product information Virtually real hopper dredger for economic training (Source : P&D
nr. 158 from 2002) When in the late 1990's the size of trailing suction hopper dredgers
exploded, the complexity of systems to guide and manage them had to follow suit. IHC
Systems'brief was to further develop sensors and instruments on one hand and make the mass
of their signals intelligible for dredger masters on the other. ... (PDF: 336 KB / 4
pages) Click here for complete article
-------------------------------------------------------------------------------- MTI
MTI HOLLAND BV, a subsidiary of IHC HOLLAND NV, was founded in 1942 in Delft. Today MTI,
one of the leading research and development institutes for dredging, dredge mining and
dredging equipment is situated at Kinderdijk, in the centre of Holland and the centre of
the Dutch dredging industry. Originally founded for research and development projects on
behalf IHC only, nowadays MTI also offers its services to third parties, in particular
dredging companies, government institutions and consultants. With more than 50 years of
experience, MTI has gained access to a vast network of information and capability sources.
Research on hopper settlement By S.C. Ooijens, A. de Gruijter, MTI Holland BV (Source :
P&D nr. 157 from 2002) An improvement in the efficiency and the profitability of a
trailing suction hopper dredger can be achieved by improving the settlement process in the
dredger. The loading time of a TSHD is particularly sensitive to this settlement when
operating in fine sands........ (PDF: 403 KB / 4 pages)
-------------------------------------------------------------------------------- TID The
Training Institute for Dredging (T.I.D.) was founded in 1982 to serve the dredging
industry in Holland and abroad with classroom training facilities and practical dredging
support. Since then many courses have been organised in the Netherlands and throughout the
world. The aim of T.I.D. is to organise courses, educational programmes, on-the-job
training and similar activities related to dredging. The transfer of knowledge and
experience is essential to ensure more effective preparation, implementation and
supervision of dredging projects.
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