Composed of a magnetic slag ring and a labyrinth floating carbon ring seal. Its split design allows for easy installation without dismantling equipment, saving time and reducing maintenance costs. The magnetic slag ring seals by sliding along the pull rod, while the labyrinth floating carbon ring provides non-contact sealing that prevents wear on the pull rod, ensuring permanent use. This combined seal offers superior performance and long service life, capable of operating continuously for over 8000 hours. It is widely used in coal mill equipment across metallurgy, power generation, and coal chemical industries.