Biomass, Dies, Pelleting
Nov 15, 2015
La Meccanica
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Dies: the “Rollover”

Dies: the “Rollover”

Rollover is the condition of the die face when the hole inlets start to peen closed. This peening action will have dramatic effects on both the pellet quality and the throughput of the die, usually lowering both

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Rollover is caused when the force exerted on the face of the die exceeds the toughness of the die material used. Roller adjustment, and or patterns and certain types of feed exert excessive stresses on the die face, initiating rollover. In the case of Mor-Ton and Alloy dies, the likelihood of rollover occurring increases as the
depth of wear increases, exposing greater amounts of softer ligament material.

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