Centrifuge for Hot-Dip Galvanizing Lines
In hot-dip galvanizing, zinc-coated steel products often require precise removal of excess zinc to ensure uniform coating thickness and high-quality finish. The Centrifuge is a key piece of equipment designed to remove surplus zinc and improve surface quality while maintaining production efficiency.
Working Principle
The Centrifuge uses high-speed rotation to spin galvanized steel strips or small components, forcing excess molten zinc off the surface. This process ensures uniform coating thickness and minimizes zinc waste. The system is equipped with temperature-resistant components to handle hot, molten zinc safely.
Precision Spin Galvanizing: Perfecting Small Parts & Fasteners
Standard hot-dip galvanizing often leaves small components, threaded fasteners, and hardware with excess zinc buildup, clogged threads, or sharp spikes. To deliver a flawless fit for high-precision components, we utilize an advanced Centrifugal Galvanizing (Spin) System.
Immediately after the steel parts are lifted from the molten zinc kettle, they are transferred into a high-speed centrifuge. The powerful centrifugal force instantly expels all excess zinc before it solidifies. This specialized process ensures that male and female threads remain completely clear, clean, and fully functional, eliminating the need for costly post-galvanizing re-tapping. From industrial bolts and nuts to intricate stampings, our centrifuge technology guarantees complete corrosion protection without compromising mechanical tolerances.
Enclosed Pretreatment System for Hot-Dip Galvanizing Lines
In hot-dip galvanizing, steel surfaces must undergo pretreatment to remove rust, oil, and other impurities, ensuring proper zinc adhesion. The Enclosed Pretreatment System provides a fully contained solution for cleaning, pickling, and fluxing steel before galvanizing, improving coating quality while minimizing environmental impact.
Working Principle
Achieving a flawless zinc coating begins with meticulous surface preparation. Our chemical pre-treatment process incorporates high-efficiency degreasing, pickling, and fluxing to eliminate all surface impurities. For stubborn contaminants—such as heavy paints, enamels, or anti-splash welding silicones—we integrate targeted mechanical cleaning to ensure a pristine substrate. Since subtle contaminants can easily bypass basic visual inspections, precision in this phase is non-negotiable. Any residual surface pollution can compromise coating adhesion, leading to dark burn marks and reduced corrosion resistance. By combining advanced chemical and mechanical treatments with rigorous multi-stage quality control, we consistently deliver uniform, reliable, and high-performance finishes
In conclusion, flawless hot-dip galvanizing depends entirely on a seamless, integrated pre-treatment process. By prioritizing meticulous surface cleaning and strict contamination control, we eliminate the root causes of coating defects, ensuring that every finished product delivers maximum durability and premium quality.
Flux Regeneration System for Hot-Dip Galvanizing Lines
Optimizing Coating Integrity: Our Advanced Flux Regeneration System
A premium hot-dip galvanized finish requires an ultra-pure flux bath. During the galvanizing process, iron carryover inevitably contaminates the flux solution, leading to increased dross formation, zinc waste, and surface defects like dark spots or rough coatings.
To guarantee uncompromised quality, our facility utilizes an automated Flux Regeneration System. This continuous online treatment system precisely removes harmful ferrous iron (Fe2+) contaminants and stabilizes the zinc-to-ammonium chloride ratio without interrupting production.
By maintaining the flux bath at peak chemical purity, we significantly reduce zinc consumption, eliminate surface burning, and deliver exceptionally uniform, high-adherence coatings for every project.
Fully automatic unmanned flux iron removal integrated system.
Non-standard customized skid-mounted system for easy installation and transportation.
After treatment, Fe²⁺ concentration is reduced to below 2 g/L, helping to shorten dipping time, reduce dross generation, minimize bare spots, and improve galvanizing surface quality.
Automatic chemical dosing system to adjust pH value to 4.50.
Filtration area: 15–60 m².
The Flux Regeneration System is widely used in hot-dip galvanizing lines to recycle flux in pretreatment processes. By regenerating the flux, it reduces operational costs, minimizes waste, and ensures that the flux performs optimally, contributing to high-quality zinc coatings and sustainable galvanizing operations.
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