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Basically, the rotary press is simple. Its chief functioning elements are two large-diameter rolls, nearly always rubber-covered, one of which is positioned precisely above the other. Sometimes, these rolls are driven by a single-speed motor, which provides a feed of about 30 fpm, but more often a variable-speed drive is employed, which allows any feed speed from 10 to 60 fpm. Neoprene rubber is used to cover the rolls. This rubber is from 60 to 70 duro A hardness, which will provide a perfect bond without any danger of marring of scratching."

It is very significant for our purpose that what the flat platen presses can do can be done by rotary presses. It is argued by the importers that their flat platen presses are moulds. As we have seen the forming is done by means of the pressure exerted by the plates upon the impregnated paper, and with the help of heat to form the laminate sheets/plates. It turns out, however, that the same work can be done by rotary presses whose arrangement is given in the book as follows:-

"Its chief functioning elements are two large-diameter rolls, nearly always rubber-covered, one of which is positioned precisely above the other. Sometimes, these rolls are driven by a single-speed motor, which provides a feed of about "50 fpm, but more often a variable-speed drive is employed, which allows any feed speed from 10 to 60 fpm."