Granite roll material and surface requirements, Technical Information Paper TIP 0404-41 (2017)

 

Most granite rolls have been replaced by rolls with composite or synthetic covers but some stone rolls are still in use. Granite has long been used for paper machine press rolls due to its exceptional release properties. The use of granite for press roll construction dates back to at least the 1700s and the first granite was probably quarried in Scotland near Aberdeen. Today granite for press rolls is quarried primarily in two places; Barre, Vermont and Kuru, Finland. Both granites are quite similar in appearance and mineral composition. Press roll bodies have been quarried in all sizes up to and including 1700 mm × 10,000 mm length.

Due to the importance of the press roll in modern paper machine operation, the components of the press roll must be understood by the paper mill staff. The intent of this paper is to familiarize mill personnel with the properties of granite and serve as an aid in troubleshooting granite roll problems

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Granite roll material and surface requirements
Granite roll material and surface requirements, Technical Information Paper TIP 0404-41 (2017)
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