Abstract: The paper describes the design principle，main unit structure，operation process，main features and application of LJK combined type tramp iron remover for magnetic ores.LJK combined type tramp iron remover for magnetic ores has the advantages of automatic supervision and automatic iron removal，little ore attachment and no tram iron missing and therefore，has wide application prospect.

Key words: Tramp iron remover, LJK, Combination type, magnetic ore, Superimposed magnetic field