FOR LONGER LIFE SPAN
Semi-trailers used in heavy haulage are subject not only to adverse weather and road conditions that create the perfect environment for the degenerative corrosion to form but also these large heavy-duty equipment carrying tons of loads are also relentlessly challenged under harsh loading and unloading operations, causing damages on their metal surface, paving the way for further corrosion.
Kässbohrer uses the process of cataphoretic dip coating and galvanization in order to protect its semi-trailers against corrosion for over a decade. However, the working conditions of low-beds and low-loaders and their larger sizes, unsuitable for cataphoretic baths, require a more resistible technique: Metallization.
During the metallization process, the chassis of the semi-trailer first passes through automatic and manual blasting, where it is cleaned and the needed surface roughness for metal coating is achieved. The chassis is then sprayed with a metal alloy, consisting of 85% zinc (Zn) and 15% aluminum (Al), which creates a protective layer on the metal surface. The combination of 85/15 Zn/Al provides an acidity level of pH 0-14 to protect the metal surface against corrosion for over 20 years. The metallization is followed by two-coat painting.
Metallization protects the chassis against shocks, perforation, and scratches which would cause corrosion, increasing the durability of Kässbohrer semi-trailer, which in turn result in longer product life and increased value.