High-Precision Seabed Sediment Gravity Corer & Piston Coring System | Frankstar Technology
High-Precision Seabed Sediment Gravity Corer & Piston Coring System | Frankstar Technology,
gravity corer, Marine Geotechnical Survey, Marine Sediment Coring, Oceanographic Sampling Equipment, Piston Gravity Corer, Seabed Sediment Sampler,
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
Offshore Wind Farm Site Investigation
Cable & Pipeline Route Surveys
High-Fidelity Scientific Coring
Long-Core Seabed Characterization
Specifications
| Light Weight Gravity Column Sampler（SType） | |||||
| Serial Number |
Sample Diameter | Total Weight of Equipment |
Sampling Length |
Sampling Tube Diameter |
|
| 1 | 5 cm | 50 kg | 1 m | 76 mm | |
| 2 | 5 cm | 100 kg | 2 m | 76 mm | |
| 3 | 5 cm | 200 kg | 3 m | 76 mm | |
|
|||||
| Serial Number |
Sample Diameter | Total Weight of Equipment |
Sampling Length |
Sampling Tube Diameter |
|
| 1 | 7 cm | 200 kg | 3 m | 89 mm | |
| 2 | 7 cm | 400 kg | 4 m | 89 mm | |
| 3 | 7 cm | 800 kg | 5 m | 89 mm | |
| 4 | 7 cm | 1000 kg | 6 m | 89 mm | |
| Heavy Duty Gravity Column Sampler (LType) | |||||
| Serial Number |
Sample Diameter | Total Weight of Equipment |
Sampling Length |
Sampling Tube Diameter |
|
| 1 | 10.5 cm | 1000 kg | 4 m | 127 mm | |
| 2 | 10.5 cm | 1250 kg | 5 m | 127 mm | |
| 3 | 10.5 cm | 1500 kg | 6 m | 127 mm | |
|
|||||
| Serial Number |
Sample Diameter | Total Weight of Equipment |
Sampling Length |
Sampling Tube Diameter |
|
| 1 | 10.5 cm | 1500 kg | 6 m | 133 mm | |
| 2 | 10.5 cm | 1800 kg | 9 m | 133 mm | |
| 3 | 10.5 cm | 2200 kg | 12 m | 133 mm | |
|
|||||
| Serial Number |
Sample Diameter | Total Weight of Equipment |
Sampling Length |
Sampling Tube Diameter |
|
| 1 | 10.5 cm | 2000 kg | 12 m | 146 mm | |
| 2 | 10.5 cm | 2400 kg | 18 m | 146 mm | |
| 3 | 10.5 cm | 3000 kg | 24 m | 159 mm | |
| 4 | 10.5 cm | 3500 kg | 30 m | 159 mm | |
Product Overview & Key Features:
Frankstar Technology’s Gravity Corer system is an integrated seabed sampling solution engineered for high-reliability marine sediment collection. Designed for soft, cohesive seabed substrates (such as mud and sandy clay), our equipment supports both standard gravity coring and active piston-assisted coring to minimize sample disturbance and deliver superior stratigraphic preservation.
Key Specifications & Capabilities:
Modular System Types: Available in Light (SType), Medium (MType), Heavy Duty (LType), and Piston Long Cylindrical (PType) series.
Flexible Core Diameters & Lengths: Core sample diameters ranging from 5 cm to 10.5 cm, with sampling lengths achievable from 1m up to 30 meters.
Durable Construction: High-strength stainless steel barrel options with internal PVC liners and orange peel core catchers to guarantee maximum sample recovery rate.
Applications: Ideal for offshore geotechnical surveys, wind farm site investigations, submarine cable & pipeline route surveys, and marine climate research.
