Nichimo NS Trawl Doors are strong and low gravity center doors for bottom and midwater trawling.

Nichimo NS Trawl Doors are double layered and have special, high polymer buoys built in the inner layer to generate good buoyancy of the body. The balance of their buoyancy and shoes results in lowering the gravity center and keeping and stabilizing the doors' upright position.

Their double-layered body is strong and sturdy.