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ROCKWELLE
- surface smoothness comparable to chrome
- twice as hard as chrome, and three times harder than nitride
- lasts twice as long as chrome
- keeps flute geometry stable through the lifetime of the roll
Many of our competitors offer "tungsten-carbide" coatings, but only FRIESE offers the specially-formulated ROCKWELLE coating.
Combined with FRIESE's three-stage polishing process, ROCKWELLE coating produces a roll surface smoothness equivalent to chrome coatings (Ra < 0.2 μm) that is twice as hard and lasts twice as long, in effect eliminating noticeable wear on the flute tips of the roll. Flute profile remains constant over the life of the roll.
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ROCKPROFILE
- stronger corrugated board
- reduced take-up factor, leading to less medium consumption
Constant flute geometry throughout the life of the corrugating roll enables FRIESE to optimize the flute profiles significantly. Focus is put on reducing the web tension in order to produce stronger corrugated board.
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The optimum ROCKPROFILE is developed for your individual application, based on your machinery, board grades and production speeds. FRIESE engineers will work to reduce the take-up factor to help realize board savings while maintaining or even improving your finished corrugated board strength.
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CCS/THERMOGROOVES
- better heat transfer permits higher production speeds
- eliminates waste on production restarts
- no maintenance or adjustment
THERMOGROOVES run the inside length of the corrugating roll, extracting condensate during corrugation. This results in a higher roll surface temperature, enabling better heat transfer, faster production speeds, and stronger glue bonding.
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Regular corrugating rolls suffer from distorted exterior geometry after lengthy production runs, leading to wasted production on restarts as the rolls wind up and resume normal shape. FRIESE corrugating rolls equipped with CCS/THERMOGROOVES stay dimensionally stable during production stops, eliminating production waste on restarts.
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| What's more, FRIESE corrugating rolls with CCS/THERMOGROOVES require no maintenance or adjustment to the steam head or condensate pipe. |
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