BC45 Commercial head box
The BC45 Commercial head box material is a two-part aluminium roll formed section designed to completely enclose the working parts of the shutter. The shutter curtain (slat) is concealed in the head box when in the UP position and for this reason we have four sizes of head box. The box has two roll formed sections (Top Plate and Bottom Plate), that are fitted together with a pair of cast aluminium End Plates.
Commercial head box sizes:
180mm - up to 1460mm Height
205mm - up to 1920mm Height
230mm - up to 2530mm Height
250mm - up to 3100mm Height
300mm - up to 4200mm Height
Thickness: 0.9mm
Coating
The base material has a two-coat system of primer plus topcoat, which is
based on binders of polyester and melamine.
Type: Modified Polyester
Pre Treatment: Hot sulphuric acid with alternating current, anodizing a
coating thickness of max.0.10 microns of aluminium oxide.
Primer: Specially formulated flexible primer with a nominal
film thickness of 5 microns
Top Coat: Polyester with a nominal thickness of 20 micr
Mechanical Properties
The BC45 boxing material has excellent corrosion resistance due to the
high-grade aluminium alloy used and the exceptional coating qualities. The
shape of the box is designed to be aesthetically pleasing while maintaining
a highly functional purpose.
Due to the strength of the Commercial Rollershutters shape and the lightness
of the aluminium, the box will not bend over its own weight. Unlike steel
boxing, the cut edges are protected by the corrosion resistant properties
of the aluminium. The cast aluminium end plates are fitted using aluminium
rivets, therefore offering the best resistance to galvanic corrosion or
electrolysis, caused by using dissimilar metals.