MARINE FARMS

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CDC is the largest installer of Spiral anchor systems in New Zealand. Our company has developed farms from Stewart Island in the southern part of the South Island, Banks Peninsula in Canterbury, Coromandel, Auckland Region ( North Island), Marlborough Sounds and Golden Bay.

During days with bad weather Spiral Anchors will not move from their site, they offer an Anchor force which is unsurpassed by other conventional systems especially so on sloping shorelines. Anchor placement is extremely accurate, due to the installation method using our DGPS system. This is assisted by the correct marking out of the farm site by a registered surveyor.
 
They are environmentally friendly both during and after installation only disturbing 1 meter of seabed, for a short period of time. To date Commercial Diving Consultants Ltd have installed over 8000 Spiral Anchors on Mussel, Salmon and Oyster farms. The Anchoring properties really become evident when you realise some Mussel farms can have up to 80 tonnes per line prior to harvesting, this line is Anchored in place by two Spiral Anchors.
 
OTHER SERVICES AVAILABLE

• Block Handling:
   Using "Soundz Image" CDC can install or relocate blocks up to 10 tonne.
   
• Farm Relocation or Extensions:
   We can re position or extend your farm quickly and efficiently regardless whether anchored by Concrete Blocks or Spiral Anchors.
   
• Backbone Installation:
   When we install or relocate farms, clients are requesting CDC to carry out the surface work. Because we are on site we can be cost competitive.
   
• Warp Cleaning / Anchor Inspection:
   We can inspect your Anchoring system, chains (when fitted), clean your warps while also checking and measuring them for wear or damage.  Our cleaning method does not damage the warp and provides the client with valuable maintenance information. "Preventative Maintenance Saves Money".
   
• Underwater Inspection / Video:
   We can carry out any type of visual, video or still camera shot inspections. We can video your hull for survey and viewing by your surveyor.