Seamless roll

- for special applications. This is the latest addition to the Stressometer family. It is a roll intended to be used where there are extreme demands on the strip surface quality, e. g. bright annealed stainless steel as well as some aluminium applications.

The roll has a completely seamless surface - there is nothing that can mark the strip. The surface, made of tungsten carbide, has a hardness of 69 HRC, thus minimizing wear and preventing material pick-up.
The roll body is completely sealed and no dirt or liquid can enter into the body. This makes the roll exceptionally reliable.
The roll has 26 or 52 mm wide sensors for measuring the flatness.
Data
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Data

Type Standard roll
Roll life cycle More than 20 years
Strip thickness range 0.1 - 10 mm or
0.02 - 2 mm1)
Typical accuracy
(installation dependent) 0.5 I-units
Measurement zone width 26 or 52 mm
Min. edge zone coverage for measurement 1 mm
Measurement range per zone 10 - 60000 N
5 - 10000 N1)
Max. mechanical load per zone without need for recalibration of roll 120000 N
20000 N1)
Dynamically measurable force change per zone 0.7 - 1 N2)
0.3 - 0.5 N1)
Max. measurement density
(number of measurement points/meter strip) 2603)
Max. strip temperature 240°C
Wrap angle variations during rolling 4 - 70 degrees
Roll diameter 313, 400 mm
1) Semi foil design
2) Wrap angle dependent
3) 4 measurement point per zone and roll revolution

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