Cooling Tower Rusting Within Two Years? Where Does The Problem Come From?

Cooling tower rusting within two years? Where does the problem come from?

Many customers only look at price, brand, and cooling capacity when buying a cooling tower. Few people ask: What material is the casing made of? What are the bolts made of?

The result? After two years, the tower body is covered in rust, and the bolts are seized and cannot be removed. To do maintenance, you need an angle grinder. To replace parts, you cannot take them apart. In severe cases, the tower structure becomes loose.

The problem lies in two areas: the casing and the bolts.

First, the casing

The casing is the cooling tower's first line of defense, exposed to sun, wind, and rain year-round. Whether the material is good or not becomes obvious within two years.

Many manufacturers use galvanized sheets or aluminum-zinc coated sheets to cut costs. These materials look bright when new, but their corrosion resistance is limited. Especially in humid environments, coastal areas, or near chemical plants, they start rusting within two or three years. Once rust appears, the surface first blisters and peels, then the corrosion deepens, and finally, it perforates and leaks.

Once the casing rusts, the entire tower's service life is greatly reduced.

Oasis Bingfeng uses magnesium-aluminum-zinc coated sheets. This material offers corrosion resistance ten times greater than ordinary galvanized sheets, with stronger corrosion resistance and oxidation resistance, and a longer service life. It also has a unique feature - self-healing cut edges. When ordinary sheets are cut, the coating at the cut edge is damaged, and rust quickly starts from the cut. With magnesium-aluminum-zinc coated sheets, the coating slowly flows after cutting, automatically covering the cut edge and forming a new protective layer.

Only when the casing does not rust can the tower last long.

Second, the bolts

Bolts are the most inconspicuous parts of a cooling tower, but also the most critical.

Many manufacturers use hot-dip galvanized bolts. They look fine when first installed, but during installation, the wrench scratches the coating. The iron underneath is exposed and quickly rusts in a humid environment. A few years later, when you need to disassemble for maintenance, the bolts are seized and cannot be turned. You have to use an angle grinder to cut them. Sparks fly everywhere, and you risk damaging nearby structural parts.

One seized bolt can cause half a day's trouble.

Oasis Bingfeng uses three-zero-four stainless steel bolts. Stainless steel does not rust and does not need a coating for protection. You can tighten them however you want; scratches do not matter. After ten or eight years, they still look bright when removed. During maintenance, a wrench turns them easily, saving time and effort.

Oasis Bingfeng - good materials from the inside out

Magnesium-aluminum-zinc coated sheets for the casing. Three-zero-four stainless steel bolts for the fasteners. Good materials in these two areas ensure the tower lasts long.

Some say customers cannot see these details anyway, so why not use cheaper materials? We believe conscience lies where customers cannot see. Customers buy a tower wanting it to last ten or fifteen years, not just two or three.

Oasis Bingfeng closed-circuit cooling towers - good materials from the inside out.