| | | Dust generated from conveying coke and raw materials adheres to conventional switch devices and impairs their ability to operate reliably. | | Consequently, industrial engineers crave switches with longer life and without contact problems. Bestact built in limit and proximity switches can meet such demand due to the sealed contact that is used. | | Bestact output contacts are used in the master and thus causes switching problems of controller in iron making plants. conventional contacts. Slide movements of a cam operate conventional A Bestact vane type magnetic proximity switch contacts. However, the cam often seizes and improves reliability of output contacts and oxide coating forms on the surface of contacts mechanical durability of a main operational due to the severe operational environments switch in iron making plants. | | |