More than ever before the worldwide consolidation in the steel industry is followed by the constant need for process improvement. Weighing systems have always largely contributed to economical and safe steel production: from mass control and dosing of raw materials over the processing of hot metal and liquid steel to the sale of finished products. Especially the in-process weighing systems, used for internal control in the production area (scrap yard, blast furnace, converter, EAF and continuous casting machine) have to operate in an extremely harsh environment. With loads between 1 and 1,0001 to be weighed, these scales should be mechanically designed for each particular use, leading frequently to solutions very different from conventional legal-for-trade scales like truck or platform scales. In steel plants in-process weighing systems are generally used for the following functions: production control for stable quality parameters, determination and optimisation of the yield inside a production unit, internal plant mass balancing, "invoicing" of services and production turnover between different production units. In addition to these control functions reliable weighing systems contribute significantly to increasing safety and profitability of the daily steel making process.
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