2026-09-16
PV projects in coastal areas, islands and nearshore industrial zones operate under harsh environments featuring high salt spray, high humidity and severe corrosion. Ordinary hot-dip galvanized PV brackets are prone to coating peeling, steel rusting and structural deformation, which drastically shortens the service life of PV power stations and raises maintenance risks and replacement costs. Targeting the pain points of PV projects under highly corrosive working conditions, Zhongtang Group has developed high-end corrosion-resistant PV mounting products and launched ZAM275 alu-zinc-magnesium alloy PV mounting profiles. With outstanding anti-corrosion performance, we deliver high-quality, long-life and low-maintenance professional solutions for PV projects in highly corrosive regions worldwide, demonstrating our strength in high-end manufacturing.
Zhongtang Group’s ZAM275 alu-zinc-magnesium PV brackets adopt a ternary alloy coating process of zinc, aluminum and magnesium, with a coating weight of up to 275g/㎡. The scientifically formulated alloy delivers excellent corrosion resistance, oxidation resistance and self-healing properties. Compared with conventional hot-dip galvanized brackets, the biggest advantage of ZAM alu-zinc-magnesium brackets lies in the automatic passivation and repair capability on cut sections, notches and drilled holes. No extra anti-corrosion treatment is required, completely eliminating rust risks at cut edges. Verified by professional salt spray tests, the cut surfaces can self-passivate and resist combined corrosion from coastal salt spray, acid & alkaline rainwater and industrial waste gas. The outdoor service life can stably exceed 25 years, making it ideal for stringent scenarios including coastal ground-mounted power plants, coastal rooftop distributed PV systems and island PV projects.
In terms of production technology and product precision, all ZAM275 alu-zinc-magnesium brackets from Zhongtang Group are manufactured on fully automatic cold roll forming lines. The profiles are integrally formed without welding breaks or deformation defects, boasting high overall structural strength and dimensional accuracy. Our full range of products includes U-profiles, C-profiles, rails and purlins for PV mounting. Customization of different cross-section specifications, profile lengths and hole patterns is available to fully meet installation requirements for residential, commercial & industrial, and large-scale ground PV power plants. Meanwhile, complete matching accessories such as original T-bolts, stainless steel fasteners and aluminum alloy clamps are supplied. The whole system features high compatibility, greatly improving on-site installation efficiency and structural stability.
As a direct manufacturer, Zhongtang Group achieves full-process independent control over ZAM alu-zinc-magnesium profiles, from raw material procurement, alloy coating processing, cold roll forming, precision inspection to finished product acceptance. No middlemen are involved. Product quality is traceable and supply remains stable. All finished products undergo strict hardness tests, dimensional tolerance checks and salt spray corrosion tests. Full sets of third-party test reports and export certifications can be provided to satisfy stringent acceptance standards of high-end overseas projects. Thanks to superior corrosion resistance and consistent product quality, Zhongtang ZAM275 alu-zinc-magnesium PV mounting systems have been widely adopted in numerous PV projects in coastal high-corrosion regions globally, and become a preferred option for overseas buyers selecting premium PV brackets.
