13.750 - Gravity corer, diameter 140 mm:

Application:

The gravity corer is designed for taking samples in hard sandy sediment. Detachable core tubes with a length of 5 m. Up to 25 m in soft or muddy sediment. Add the 13.795 kit (bought separately), and the corer will act as a piston corer, giving more versatility to the system.

Main body and weight base:
The main body and the weight base are manufactured from AISI 316 stainless steel. The weight base has a capacity of 20 pcs. of weights, 80 kg/each made from lead and secured in a stainless steel container with handles. Max. weight of the corer: 2000 kg. On request, the base can be made to support a larger number of weights. On top there is a non return flap and a strong rubber packing.

Coring tube:
The coring tube is made of AISI 304 stainless steel tube. 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 (AISI 316 stainless steel), allowing the sediment sample to pass up into the tube, and prevents exiting of sediment when the coring tube is redrawn from the seabed.

13.757 - Coupling device for tubes:
• AISI 316 stainless steel
• Diameter 152 mm/141 mm
• Weight: 9,2 kg

13.759 - Lead weights:
• Weight: 80 kg
• Container made of AISI 316 stainless steel
• Integrated handles
• Standard delivery of the gravity corer supports up to 20 weights

13.795 - Extension kit makes the corer act as a piston corer:
• 1 pc Kullenberg releaser inclusive AISI 316 stainless steel wire
• 1 pc weight station (50 kg) for Kullenberg releaser
• 1 pc cap nut with shackle
• 1 pc piston
• 1 pc stainless steel wire for 5 m corer tube

13.760 - Drum with ratchet device:
• For extrusion of the sediment sample
• Requires 13.761 piston rod
• Weight: 10 kg

13.761 - Piston rod:
• For extrusion of the sediment sample
• Requires 13.760 drum with ratchet device
• Weight: 14 kg