2019-10-24
SealView from Voith: Exploit the maximum wear capacity of seal strips with no risk
- Digital wear detection for seal strips in suction rolls
- No unscheduled machine downtimes and sufficient time to plan spare parts procurement
- A safe way to increase runtimes for suction rolls
Digital wear detection for seal strips
Seal strips in suction rolls delimit the individual vacuum zones and are subjected to constant wear as they are pressed against the rotating suction roll shell. At the moment, it is not possible to determine the current state of wear after its final assembly or while the roll is in operation. The right time for a roll change has therefore generally been determined based on empirical values. When operating parameters change, for example due to a failure of individual lubrication nozzles, an unexpected vacuum failure might occur which negatively influences the planned runtime of the roll.
With SealView, this risk is now a thing of the past. The new technology can be built into the suction roll – independently of roll design and brand – during a roll service at one of Voith’s service centers. After changing the rolls, Voith personnel will do the initial commissioning and training at the paper machine.
No unscheduled machine downtimes and sufficient time to plan replacement part procurement
The system alerts the operator when the seal strip has reached half of its service life. When it gets to a safety margin before the maximum wear level, an alarm is triggered. Via a visual representation on a monitor, the system informs the operator about the actual wear condition and the probable remaining service life of the seal strip, alerting the operator in good time to the necessity for a roll change. Moreover, the associated notifications are sent by email and are therefore available to personnel on their smartphones.
After receiving this information, the operator has sufficient time to systematically plan the disassembly of the roll and coordinate further action for a roll service and the procurement of replacement parts with the Voith service department.
Longer suction roll service life and maximum reliability
The system reveals its full potential, particularly in the case of runtime extensions over and beyond the usual lifetime. Because the seal strip wear is displayed, the operator can rely on the system over extended periods of use without worrying about an unscheduled downtime.
Voith has decades of experience in the maintenance of rolls in general and suction rolls in particular. Based on the information currently available, particularly important components need to actively communicate with the operating and maintenance system to achieve maximum reliability. Through its SealView technology, Voith has reached another milestone in implementing this approach in respect to Papermaking 4.0.
For more information on the SealView technology, please visit
About the company
The Voith Group is a global technology company. With its broad portfolio of systems, products, services and digital applications, Voith sets standards in the markets of energy, oil & gas, paper, raw materials and transport & automotive. Founded in 1867, the company today has more than 19,000 employees, sales of € 4.2 billion and locations in over 60 countries worldwide and is thus one of the larger family-owned companies in Europe.
More about the Voith Group
The Group Division Voith Paper is part of the Voith Group. As the full-line supplier to the paper industry, it provides the largest range of technologies, services, and products on the market, and offers paper manufacturers holistic solutions from a single source. The company’s continuous stream of innovations facilitates resource-conserving production and supports customers in significantly reducing their carbon footprint. With its comprehensive automation products and leading digitization solutions from the Papermaking 4.0 portfolio, Voith offers its customers state-of-the-art, digital technologies to increase the availability and efficiency of their systems in all areas of the production process.