International Sugar Journal

A premium sugar mill roller shell material for conventional and high performance internal bleeding rollers* [Full subscriber]

Historically, sugar mill roller shells have been manufactured in open grained cast iron for a number of reasons. Open grain cast iron provides the rough surface conducive to better traction. Cast iron has low elongation so that the roller teeth tend to break under high, concentrated loads, possibly saving other, more serious, extensive damage. The traditional cast iron shells are also low cost compared to more sophisticated materials. Cast iron however, suffers from low strength and low weldability. With the advent of surface engineered rollers by weld deposition (hardfacing), the benefit of the rough surface of the cast iron needed…

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