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Cathodic protection is one of the most effective electrochemical anti-corrosion methods used in modern metal protection systems. By electrically connecting sacrificial zinc anodes to the metal structure, the zinc anode corrodes first, thereby protecting steel structures and foundation systems from corrosion.
This system uses bolt-on zinc sacrificial anodes, which can be directly installed on steel structures, ground screw foundations, metal wall panels, and buried metal components. It is easy to install and requires minimal maintenance, making it suitable for modular housing, light gauge steel buildings, coastal structures, and underground foundation systems.
The system can also be combined with buried anodes, anode patches, and solar-powered multi-channel controllers to provide long-term and stable corrosion protection while reducing maintenance costs.
The sacrificial anode cathodic protection system works by electrically connecting zinc anodes, which have a more negative potential, to the protected metal within the same electrolyte environment. The zinc anode corrodes first and releases protective current, keeping the protected metal in a cathodic state and preventing corrosion. As the current continues to flow, the zinc anode is gradually consumed while the steel structure and foundation system remain protected.
1. Easy bolt-on installation
2. Long-term stable protection with low maintenance
3. Suitable for underground, humid, and coastal environments
4. Applicable to ground screws, steel structures, metal wall panels, and foundation systems
5. Supports solar-powered multi-channel protection systems
6. Extends metal service life
7. Reduces maintenance and replacement costs
1. Bolt-On Zinc Sacrificial Anode
Installed directly on steel structures and foundation components for corrosion protection.
2. Buried Anode
Installed underground to provide continuous cathodic protection for buried metal structures.
3. Anode Patch
Designed for localized surface protection on metal panels and corrosion-prone areas.
4. Solar 8-Channel Protection Controller
Supports 8 independent channels with short-circuit alarm functions and can be powered by solar energy, AC power, or batteries.
Widely used in modular prefabricated housing, light gauge steel villas, container houses, ground screw foundation systems, metal wall panel structures, and underground steel components. Especially suitable for coastal, humid, underground, and corrosion-prone environments, the system provides long-term corrosion protection for steel foundations, anchoring systems, and metal structures while reducing maintenance costs and extending service life.
1. What is the function of the power supply?
The function of the power supply is to continuously provide current to the cathodic protection system. The power supply mainly includes constant current rectifiers, constant voltage rectifiers, and potentiostatic controllers.
2. What is a sacrificial anode cathodic protection system?
The sacrificial anode method connects a metal or alloy with a more negative potential than the protected metal to the structure being protected. The sacrificial anode corrodes preferentially, generating current that protects the other metal from corrosion.
3. Why do modular houses need cathodic protection?
Underground moisture, coastal salt spray, and rainwater can gradually cause corrosion of steel structures and foundation systems. A cathodic protection system effectively reduces the corrosion rate of metals and extends the service life of building foundation systems.