Galvanized equipment including air knives, sink roll, stability and accessory equipment, zinc pot, add equipment of zinc, etc. Air knife manufacturers for many years continuously to improve the air knife, fang deng coupling, Du Ma, kohler, the steel several famous professional manufacturers of air knives have distinguishing feature each, the general direction is quickly knife can automatically track the strip, and maintain stability of distance with the strip; Gets a knife can be adjusted the whole assembly and accurate positioning; Can realize the dynamic control of the nozzle area pressure stability. Better the lips rotary air knives and knife lip clearance curve, set up a quick knife lip cleaning device; Set the air knife horizontal fast, slowly open and accurate reset system, gets the knife have improved a lot. Sink roll roll surface flow zinc groove shape, spacing and bearing are improved, improves the stability and longevity. Zinc pot with welding groove type ceramic zinc pot, zinc pot volume tends to increase, to facilitate stable liquid zinc, edge of modern large-scale units usually sink roll at least 800 mm from bottom of the pot, and in the production of car plate should be more hot dip galvanized zinc pot of unit volume. Coreless the development of zinc pot is relatively mature, SMS development without sink roll zinc pot, also according to the principle of moving electromagnetic field form the magnetohydrodynamic closed design vertical zinc pot, strip steel vertical through from the molten zinc in zinc pot, the pot He Yi contain zinc corrosion. Industrial trials, this technology has been completed and has obtained South Korea east steel orders, come to the attention of the personage inside course of study