Alvan Blanch used roller mill 55 inch £ +, Charterhouse 8ft used heavy flat roller Hydraulic road, Fraser M7 used electric roller mill 3 phase, £ +. Get Price. Alvan Blanch Roller Mills. We have being selling Alvan Blanch roller mills for over 25 years and the company has been in the business of crop processing for over sixty years We sell a.