OSIL’s (Ocean Scientific International Ltd.) range of Bowers and Connelly Multiple Corers are the only way of collecting a truly undisturbed sediment sample from the seabed. Each of the four corers, Mega, Maxi, Midi and Mini, provide a simple and reliable way of collecting the most accurate sample possible.  The corers use a unique hydrostatically damped coring mechanism to attain the undisturbed sample.

The Multiple Corers can sample from 4 up to 12 cores in a single deployment and are easy to deploy and operate. The corers collect the undisturbed sediment sample together with overlying supernatant water, which provides a unique insight into the sediment water interface. OSIL’s corers are currently used worldwide by companies such as IAEA, Petrobras, Altima, NOC and The University of Aberdeen for sampling in applications related to environmental impact assessment, geochemical analysis, interstitial waters and biological survey. The rugged frame of the corers is made of 316 stainless steel and the core tubing itself of acrylic. Each has a deployment rate of approximately 1 metre per second on the descent and can be retrieved at winch speed thanks to the unique hydrostatic sealing mechanism which positively seals the sediment. The corers were designed by Bowers and Connelly and are now manufactured under license by OSIL.