Technical specifications

Active hinge bolt for fire doors to eliminate deformation of the installation point between the leaf and frame, leaf and leaf, leaf and support. Galvanised one-piece metal barrel measuring 12 x 41mm with 25×3 mm fixing flange Metal locking pin measuring 7.85 mm in diameter, 22 mm in length with 14mm of travel. Internal compression spring with 25N thrust. A heating element can be installed if necessary. Weight including striker plate – 45 grams. Metal heat fuse component in certified alloy. Device certified for the USA and Canada with UL – Underwriter’s Laboratories in GVUY category – Miscellaneous Fire Door Accessories, Positive-pressure Tested – File R38064.


Finish (Black, Galvanised White), Stealth version (milled to 14 mm)


Performance : up to 180 minutes

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Chemolli Firebolt A2

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Chemolli Firebolt A2