Self-matting rolls

by Emily Wilson
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Softer, self-matting rolls used primarily in flour milling have been developed by Spomasz, Ostro Wielkopolski, Poland. Manufactured out of a special alloy, the self-matting rolls have a surface that maintains a sandblasted finish throughout the roll's working life, a feature that improves flour extraction, increases mill capacity and eliminates the need for maintenance. Tests carried out over a two-year period showed that self-matting rolls can increase flour extraction by 1% to 1.5%. Alternatively, if the extraction level remains unchanged, milling capacity can be increased by up to 10%. Other benefits include a shorter milling process (by one to two passages), decreased power consumption and lower process temperatures.