Frisian-style hatch covers
made of aluminium

The Frisian-style hatch cover is a commonly used hatch cover for inland navigation vessels. It consists of separate aluminium hatch covers that are made to measure to match the hold width (from 4 to 12.5 metres).

These hatch covers usually consist of three sections: two sloping sections that rest on the coaming, with a horizontal walkway in between. The most common type is the one that does not require any bar holes (notches) to be made (for a smooth coaming).

Made of formed aluminium sheet

Horizontal central section in checker plate

(only for double ridge)

Available in various sizes

panels in 1, 2 or 3 sections depending on the hold length.

Flexible rubber strips on cleats

(the part that rests on the coaming) compensate for unevenness in the coaming and differences in hold width.

Ideal combined with a hatch crane

Frisian-style hatch covers combined with a hydraulic hatch crane are ideal for precisely moving and optimally stacking the hatch covers without sacrificing headroom.

friesche kap met luikwagen

Derkiena type
Frisian-style hatch cover

This type of Frisian-style hatch cover is extendible on the side where the hatch covers rest on the coaming. Their overhang is negligible and leaves sufficient space in the gangway as stipulated in the safety regulations.

An ingenious sliding system and conically shaped channels reduce the stacking height to a minimum of 8 cm. The combination of the ‘Derkiena’ hatch covers which slide in and out and the retractable hatch crane guarantees crew and visitor safety.

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