The KC box corer frame is made of 60 x 60 x 6 mm square tube, sand-blasted, hot galvanized steel. The sample tube (3) is made of 3 mm, electro-polished stainless steel (AISI 316). The possible sample areas are 30 x 20 cm (600 cm2) or 32 x 32 cm (1000 cm2) respectively, with a penetration depth of 40 cm. A special sample tube with a removable front-plate and adjustable drainage holes is available on request.
During descent, insertion and sampling the top of the sample tube remains open allowing a free flow of water and preventing pressure build-up disturbing the sediment surface.
After landing on the seabed and the sample tube has reached its maximum depth, an automatic mechanism releases the closing shovel. This is drawn into the vertical position so closing the bottom of the tube and securing the sample inside. Hydraulic dampeners can be mounted if very slow sample tube penetration of the seabed is desired.
On withdrawal from the seabed, the top of the sample tube is closed and sealed by a hinged flap with soft rubber padding. A complete KC BOX CORER consists of a frame (1), six Pewter weights (2) and a standard sample tube (3) with sealing flap and closing shovel.
A special sample tube with an additional removeable front plate and adjustable drainage holes is available on request.