Galvanized cable trays are steel cable management systems protected by a zinc coating applied to the surface, providing reliable corrosion resistance. They are classified into two primary types based on the galvanizing process:

 

 

After thorough rust removal, steel components are immersed in molten zinc at 450–600℃, forming a stable composite layer consisting of a zinc‑iron alloy layer and an outer pure zinc layer. The zinc coating thickness is typically ≥ 65 μm, offering a service life of 15–20 years or longer. Ideal for highly corrosive environments such as coastal zones, chemical plants, outdoor installations, and industrial facilities.

 

 

Zinc is deposited onto the steel surface through an electrochemical process. The coating is relatively thin, usually 5–15 μm, with a shorter corrosion‑resistant service life (approximately 12 years). Suitable for indoor, dry, or mildly corrosive environments.