Increasing quality requirements and the constant optimization of machine performance are on the agenda for anyone who wants to stay ahead in the future. Paper and tissue manufacturers and converters are faced with increasing demand for more efficient use of resources and cost effectiveness in production, without affecting product quality. Considering the complex aspects of the equipment in an ever-faster world, manufacturers increasingly resort to external service providers.
SchäferRolls, a worldwide established producer of polymer-based roll covers with its headquarters in Renningen, Germany, is expanding its product range by focusing on application and service support around roll systems. SchäferRolls provides the paper and tissue industry with an all-round range of maintenance, operating and management solutions for rolls systems and covers – from planning to construction, from implementation to start-ups, from maintenance to end-to-end integration within on-going processes. The detailed analysis of an application in order to determine the ideal roll cover design as well as helping with the optimization of process parameters are just as much part of the service catalog as the preventive maintenance.
A leading name in the industry, renowned for its precision, technical expertise and solid track record
Dewatering analysis for an optimized performance
With the support of the SchäferRolls SurfaceOptimizer, a software for the configuration and planning of surface design and dewatering performance of roll covers, the SchäferRolls application engineers developed a new surface design for the suction pressure roll cover of a German tissue manufacturer. With the changeover from a cover design with blind and suction holes to a grooved and suction-drilled design an increase of nearly 10% in the open surface could be achieved. The result: a dry content increase of 1% and big potential for energy savings.
Nip measurements und thermographic analysis solve persistent problem
A customer in the Netherlands complained of vibrations and resulting regular paper breaks at the film press rolls. He therefore sent the rolls for investigation to SchäferRolls, where massive detachments of the cover were determined. The good SchäferRolls references for this roll position convinced the customer to buy two new roll covers including complete service support by SchäferRolls, such as nip measurements, thermographic analysis and on-site consultation. After start-up, the customer still had problems with wrinkling. Supported by a thermographic analysis, the problem could be identified directly in the wire section and thus be eliminated. Due to the good experience with the covers as well as the service both roll pairs for this position have been covered at SchäferRolls.
