NORPRO PRODUCTS

Chainstoppers

The NORPRO NP-serie Chainstopper is a completely integrated locking system allowing safe and easy handling during anchor deployment and retrieval.
Designed for mounting directly between the anchor and the anchor winch, suitable for chain diameters from 20 to 132 mm.

More information

Maritime regulations require a system of blocking chains.

The NORPRO NP-serie Chainstopper is a completely integrated locking system allowing safe and easy handling during anchor deployment and retrieval.
Designed for mounting directly between the anchor and the anchor winch, suitable for chain diameters from 20 to 132 mm.
A tensioning device incorporated within all our Chainstoppers is used to tighten the anchor against the hull thus preventing damage.
On request, tensioning device can be hydraulic to save time in emergency situations by releasing the anchor from the wheelhouse without manual operation.

Models NP7 through NP13 require opening assistance using either a hydraulic or counter balance system. Optional extended base: 300 mm maximum.

Shackle and wire is not included; this is to be delivered by yard.

Dimensions

NP-serie Type Chain diam. Weight
NP 1 20 – 26 125
NP 2 28 – 34 200
NP 3 36 – 44 320
NP 4 46 – 52 640
NP 5 54 – 58 940
NP 6 60 – 64 1060
Type 7 to 13 with hydraulic assistance
NP 7 66 – 73 1350
NP 8 76 – 84 1770
NP 9 85 – 95 2520
NP 10 96 – 105 3100
NP 11 107 – 114 4200
NP 12 117 – 124 5100
NP 13 127 – 132 5600