Inflatable Net Buoys for Fishing Nets

An inflatable net buoy is a floatation device used in the fishing and aquaculture industries to support, mark and maintain nets at a given depth or on the surface. It combines portability with adjustable buoyancy, making it ideal wherever nets need to be clearly visible and easily retrieved.

Key Characteristics

• Purpose
  Designed primarily to hold up and mark fishing nets (including lobster and crab pots) or aquaculture pens, keeping them at the correct depth and signalling their location on the water s surface.

• Construction

  • Material: Heavy duty PVC or polyurethane, welded or vulcanised for puncture resistance.

  • Shape: Commonly spherical or bar style, with a central hole or eyelet (usually 25 35 mm) for passing rope or rod.

  • Inflation: Air filled via a one way valve for rapid deployment and easy packing when deflated.

• Visibility
  Finished in bright marine grade colours (orange, yellow or red) to ensure they stand out against sea and sky

Typical Specifications

While sizes and buoyancy ratings vary, one manufacturer s range illustrates the spectrum:

• 6 kg buoyancy: 270 200 mm (centre hole 25 mm)

• 56 kg buoyancy: 570 460 mm (centre hole 25 mm)

• 326 kg buoyancy: 800 620 mm (centre hole 35 mm)

1. Inflatable Buoys

   • Pros: Lightweight when deflated; compact storage; adjustable buoyancy.

   • Cons: Vulnerable to puncture; requires periodic air pressure checks.

2. Foam Filled Buoys

   • Pros: Zero maintenance; inherently puncture resistant; permanent buoyancy.

   • Cons: Bulkier; heavier to transport; fixed buoyancy.

Common Applications

• Fishing fleets: Marking the ends and floats of gill nets, trawl nets and pot lines

• Aquaculture: Supporting cage nets in fish farms

• Leisure boats: Temporary mooring or fendering in calm waters (with reinforced eyes)