Slitting & Rewinding Winding up with longer lifetime

The seamless flat belts of Nitta’s Zeroseam line improve operating life and performance in the production of cardboard tubes for food packaging

paper, allowing the belt to run at a lower tension, which significantly increases its longevity while also reducing high cost energy consumption. The rubber compound used is

produced to Nitta’s own proprietary formulation and unites a high coefficient of friction with a strong resistance to abrasive materials such as paper. The result: reliable firm grip over a long service life.

EXCEEDING NORMAL SERVICE LIFE “Frankly, we were surprised,” says Luc van Campenhout of Sonoco in Mechelen. “Of course we were expecting to see a marked improvement of the belt’s longevity, but the actual production numbers we achieved with these new belts go far beyond our expectations.” The service life of the Zeroseam belts


t Sonoco Consumer Products in Mechelen, Belgium, machines are hardly ever standing still, producing

cardboard tubes for the food industry non-stop. Employing 20,000 people in 33 countries, the Belgian company is part of the Sonoco Group, a manufacturer of paper tubes and cores and supplier of a multitude of packaging solutions. As production time is of the essence,

every minute saved in machine maintenance counts. A key factor in the frictionless performance of the spiral tube winding machines used for producing paper cores is the tube winding belt. This belt applies pressure to the product to achieve the required level of adhesion between the individual layers of paper. Requiring strong tension, high flexibility and a firm grip as well as abrasion resistance, this application poses a unique set of challenges for the belts’ design.

REDUCING MACHINE DOWNTIME Featuring a strong, seamless surface made of structured rubber, the Zeroseam belts were developed specifically to meet the needs of tube winding applications. The combination of a strong cord tension layer and their seamless design makes these belts highly flexible. It means that the belt pressure is applied evenly to the

38 December/ January 2020

exceeds that of the previously used polyamide belts by a factor of seven without loss of production speed or product quality. “Having tried many different suppliers’ solutions without seeing any significant changes, this was quite a pleasant surprise,” van Campenhout adds, pointing out the results with the Zeroseam ZS-TWL-42H belts on several of his machines. The new line of Zeroseam belts is made in a moldless production process developed by Nitta technology, which allows rubber-coated seamless belts to be produced to customer-specified lengths and widths. Nitta Zeroseam belts are currently

available in three different configurations, all of them customisable to customer needs, with additional belt types currently being developed for both tube winding machines and other applications.

RUBBER APPLICATIONS In addition to industrial belting products, Nitta manufactures conveyor systems, plastic hoses and tubing, engineered rubber products, air filtration systems, industrial wipers and mechatronic sensor systems. These products are used in many industry sectors including logistics, paper processing and printing, banking automation, and textiles. In Germany, Nitta is headquartered in Düsseldorf and has a fabrication center near Frankfurt, where belts, tubes, and hoses are stocked and fabricated to customer specifications.

Page 1  |  Page 2  |  Page 3  |  Page 4  |  Page 5  |  Page 6  |  Page 7  |  Page 8  |  Page 9  |  Page 10  |  Page 11  |  Page 12  |  Page 13  |  Page 14  |  Page 15  |  Page 16  |  Page 17  |  Page 18  |  Page 19  |  Page 20  |  Page 21  |  Page 22  |  Page 23  |  Page 24  |  Page 25  |  Page 26  |  Page 27  |  Page 28  |  Page 29  |  Page 30  |  Page 31  |  Page 32  |  Page 33  |  Page 34  |  Page 35  |  Page 36  |  Page 37  |  Page 38  |  Page 39  |  Page 40  |  Page 41  |  Page 42  |  Page 43  |  Page 44  |  Page 45  |  Page 46  |  Page 47  |  Page 48  |  Page 49  |  Page 50  |  Page 51  |  Page 52