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Gravity Corer Ø140 mm

The corer is designed for taking samples in hard sandy sediment. Detachable core tubes with a length of 5 metres. (Optional). Up to 25 metres in soft or muddy sediment.

Main body and weight base:
The main body and the weight base are manufactured from AISI 304 stainless steel. The weight base has a capacity of app. 15 pcs of weights, 50 kg/each made from lead. Upon request the base can be made to a larger number of weights. At the top there is a non return flap and a strong rubber packing.

Coring tube:
The coring tube is made of St.52.3 steel tube, hot-galvanized. Length 5 m, outer/inner diameter of 140 mm/130 mm. The tube has room for an internal, thin-walled PVC liner, diameter 125/121 mm.

Carver with orange peel:
The carver holds an orange peel arrangement (Stainless steel AISI 304), allowing the sediment sample to pass up into the tube, and prevents exiting of sediment when the coring tube is redrawn form the seabed.

Coupling device for tubes:
The coupling device for the extension of tubes is made from AISI 304 stainless steel, diameter 152 mm/141 mm.

Base plate:
If you will prevent the corer from sinking into a soft bottom, you can add a perforated base plate, diameter 800 mm x 10 mm. (perforated base plate, made from AISI 304 stainless steel).

Mounting of the equipment:
The coring body, the coring tube, the coupling device for tubes and the carver is fastened with special steel nails to be hammered into the right angled holes.

Weight base:
Upon request the weight base can be made for a maximum load of 1500 kg