CZL-YB type (made of alloy steel) column load cell is hermetically sealed,and has protection grade specified as IP68.IP69K. It has high ability to correct the center. Argon-arc welded, taking compression force, its dynamic reaction is good. Easily installed. It is able to be used in explosive dangerous circumstance, the explosion-proof symbol is Exia Ⅱ CT6Ga;ExiaD20T85. It can be highly over-loaded and used in truck scale, dynamic railway scale, hopper scale and so on.