13.770 - Gravity corer - diameter 121 mm:

Application:
The 13.770 gravity corer Ø121 mm is designed for taking samples in sandy sediment featuring detachable core tube with a maximum length of 12 m, in its 12-m version we recommend it is only used for soft or muddy sediment. The 13.770 gravity corer can also be used as a piston corer if an additional extension kit (13.786) is added (optional).

Standard delivery:
-1 pc corer body with steering fins and weight platform. (With room for a maximum of 15 lead weights, each 50 kg)
-1 pc corer tube, Ø121 mm x 4 mm, AISI 316 stainless steel,
Length 2,5 m (13.771). Any length up to 6 meters can be delivered.
-2 pcs lead weights, 50 kg each (13.775).
-1 pc orange peel closing system (13.776).
-1 pc carver (13.774).
-1 pc internal PVC liner, length 2,5 m (13.777).
-Comes with 1 package of spikes 3,4 x 90 mm (13.185) for securing the carvers, etc.
-Weight: 350 kg approx.

General:
-Max. length of core tubes: 4 (12,5) m
-Detachable core tubes with length 2,5 m each.
-Easy to extend by using coupling device's (13.773)
-Orange peel closing system (core catcher) prevents the sample from exiting (13.776)
-Carver (nose piece) for protecting the corer steel tube (13.774)
-Will also act as a piston corer by adding extra components (13.786)
-Max. weight with 15 pcs lead weight 1000 kg (approx.)

The corer is fully made of AISI 316 stainless steel. Finish: Electro polish.

The main rack has 6 steering fins and below 2 pcs lead weights, 50 kg each (standard delivery). Room for a total of 15 lead weights.

Optional:
With coupling device(s) and tube(s) you can extend the core up to a maximum of 12,5 m in segments of 2,5 m each, ensuring to suit all your needs. This feature makes an easier and more compact transportation of the equipment. On request, the core tubes and liners can be supplied at any length up to 6 m.