Gravity Corer

Operating Condition

Optimal Seabed Substrates

Engineered for peak performance in soft, cohesive sediments such as mud and sandy clay, with a recommended relative friction coefficient range of 0.05 to 0.1 kg/cm². This is where the piston mechanism most effectively maximizes core length and minimizes disturbance.

Dynamic Penetration Control

To achieve full barrel penetration and activate the piston’s benefits, release velocity is critical. A speed of approximately 1 m/s is effective for soft mud, while progressively harder bottoms require a faster release to ensure optimal core recovery.

Ensuring Safe & Complete Recovery

A critical factor for both equipment and sample integrity. We recommend a winch with a line pull capacity at least 3 times the total deployed weight of the corer system (including weights and frame). This safety factor accounts for varying seabed adhesion and ensures reliable retrieval in diverse conditions.

 Applications

Marine Geotechnical Surveys

Offshore Wind Farm Site Investigation

Cable & Pipeline Route Surveys

High-Fidelity Scientific Coring

Long-Core Seabed Characterization

Specifications