SIENDE

Trawl door shoes

Steelgrade
Hardox 600  

Thickness range
30 to 60 mm  

Industry segment
Fishing

Description of the application
The keel of a bottom door from Injector. It also shows the trawl door shoes with 50 mm HARDOX 600 as wear part, welded with austenitic consumable and bolted to the doors keel. 

Competitive advantage
Service life

Manufacturing steps
Cutting method: gas cutting

Status
Success

The trawl door shoes are usually made of Mn steel or AR steel. The service life and wear rate depend very much on the type of soil.

With the right design, Hardox 500/550/600 is the best and most economical solution. Traditionally, Mn steel has been widely used, but is increasingly being replaced by Hardox.

Hardox 500 has a 40% longer life compared to 12% -Mn steel. 

Hardox 600 has a 60% longer life compared to 12% -Mn steel.

Benefits of using WELDOX & HARDOX combined with a new design
  • Increased spreading of the trawl
  • Improved stability (low point of gravity)
  • Less towing resistance…
  • Save fuel (environment)
  • Increased towing speed: a life cycle analysis of a frozen cod block shows that by far the most serious environmental loading takes places during fishing itself *
  • Larger trawl
  • Smaller engines
  • Lighter: an empirical study has shown that 100 kg saved on board enable the fisherman to take 1000 kg more fish
  • Easier to handle on deck
  • Very fast to obtain full spreading force and very good at holding the spread when making tight turns
  • Stronger! Elastic instead of plastic deformation
The keel of a floor of injector nozzles. It also shows the trawl. Door shoes with 50mm Hardox 600 as wear part. Weld with authentic use and bolted to the doors keel.
The keel of a floor of injector nozzles. It also shows the trawl. Door shoes with 50mm Hardox 600 as wear part. Weld with authentic use and bolted to the doors keel.

See also:

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CONTACT
 

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Damatech d.o.o.
  • Cesta Franceta Prešerna 63
  • SI-4270 Jesenice, Slovenia
  • T: +386 5 923 55 00
  • F: +386 5 923 55 01
  • E: sales@damatech.com