Company cases about Wet Electromagnetic Magnetic Separation Renovation Eliminates Glaze Pinhole Defects for Ceramic Glaze Manufacturer in Ma

Wet Electromagnetic Magnetic Separation Renovation Eliminates Glaze Pinhole Defects for Ceramic Glaze Manufacturer in Ma

2026-06-30

A large ceramic glaze producer in Johor, Malaysia, launched iron removal upgrading for slurry production lines in June. Imported kaolin and feldspar slurry contain tiny weakly magnetic iron oxide particles, causing pinholes and black spots on tile surfaces after glazing and firing. The yield of high-end polished tiles was only 76%, restricting export orders to European and American markets.

High-gradient slurry electromagnetic separators are installed between ball mill discharge outlets and glazing processes, matched with small front-end drawer magnetic grates for pre-removal of coarse iron. The wet high-strength magnetic field adsorbs micron-scale weak magnetic impurities in slurry, and the equipment comes with an automatic backwashing structure to adapt to long-term circulating production of high-viscosity glaze without blockage or shutdown.

After transformation, the iron content of glaze slurry drops from 0.39% to 0.07%, and glaze surface defects of tiles are reduced by 91%. The yield of high-end tiles rises to 95.3%, with export orders to Europe growing by 42% month-on-month. The factory plans to purchase matching equipment for three more glaze production lines in Phase II construction.

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