W&J Knox Ltd products

When choosing the ideal rigging and netting specification for your cage pen, user preferences are taken into account along with cage type and site conditions. Our in-house FEA engineer can analyse your unique environmental conditions and we have practical input from the former fish farmers on our team.

Nets for effective predator control below the surface can consist of panels to surround one or a complete group of cages or can be complete with bases, produced from nylon or p.e. netting.

We produce a wide range of other nets for practical use on fish farms: sweep nets incorporating floats at the top and leadline on the base; mortality baskets with a s/s frame made by our own engineers and either 15 or 25mm mesh; small box nets for sampling purposes and brailer nets, all designed and produced to suit your requirements.

The glider system is an operational net weighting and lifting system initially developed in Norway by our parent company, Selstad. Knox adapted it in 2022 for the high energy conditions and predation pressures experienced within the Scottish market, resulting in numerous high energy farms converting from tensioned sinker tube systems.

Together with our parent company, we have a multi-disciplined engineering team including mooring analysts accredited to tailor mooring systems to meet your needs. In order to offer steel-free moorings and to increase inspection intervals, Selstad has developed a plastic-coated mooring plate with a steel core, complete with holes to attached grid ropes, bridles, mooring lines and grid buoys. The plate’s weight of 540kg leads to increased inertia in the mooring system, leading to greater stability.

Camouflage nets made by Knox for WW1 were required to fool only the human eye but the systems of today are able to deceive the most sophisticated equipment. Knox military camouflage nets are produced to UK MoD specification for deployment in specific terrains: woodland, desert or arctic, each consisting of a base net and attached garnish. Nets can be supplied in any size and are easily joined together to cover large areas. Lightweight synthetic materials are utilised in manufacture, ensuring ease of handling and transport.