Feritech’s spring-loaded seabed grab is made from marine 316 A4 grade stainless steel. The automatically-operated grab can obtain samples of up to 3 litres from sediments ranging from soft oozes to small pebbles. We also stock a full range of accessories for this item.
- Stainless steel construction
- 3 litre bucket capacity
- Sample area of 0.05m2
- Global warranty
- Simple to use
Sale or rental units available
How does a Shipek grab sampler work?
As the Shipek grab comes into contact with the sea floor the trigger weight releases the helical springs causing the sediment bucket to rotate by 180° scooping up the sediment sample. Once the bucket has rotated it remains closed by the residual torque of the same helical springs thereby protecting the sediment sample.
The rotation of the bucket is quick and penetrates the sediment cleanly, particularly if sampling clays, muds, silts or sands. Once closed the sample is completely enclosed therefore preventing washout during retrieval to the surface. Samples can be retrieved even if obstructions prevent the bucket from closing properly. Once recovered to deck, the bucket is simply removed by operating two retaining knobs. The sample is then processed as required.