Hydraulic drilling system is used to collect either rock cores (using an NQ-2inch wireline system) or coral cores (using a 4-inch diameter core barrel). Both systems utilize the same hydraulic power unit.

A grab sampler is a device used to collect sediment samples from the seabed, riverbed, or lake bottom for geological, environmental, and marine research. It operates by “grabbing” a portion of surface sediment in a single action, typically using a set of jaws or clamshell-like scoops.

A rotary corer is a drilling and sampling device designed to recover cylindrical cores from firm to hard sediments and bedrock. Unlike gravity or piston corers (used for soft sediments), rotary corers employ a rotating drill bit to cut through consolidated materials, making them essential for geological, geotechnical, and oceanographic studies.

A grab sampler is a device used to collect sediment samples from the seabed, riverbed, or lake bottom for geological, environmental, and marine research. It operates by “grabbing” a portion of surface sediment in a single action, typically using a set of jaws or clamshell-like scoops.