Moventas Santasalo Launches New Generation Yankee Cylinder Drive

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Moventas Santasalo Oy Finland, reports that it has developed a new gear series of yankee cylinder drive units for tissue machines. The new series, enhancing the design layout of the yankee cylinder drive unit, is based on a completely new technological solution to meet the requirements of today’s high-speed tissue machines, the company notes, adding that its cost-effective and maintenance-friendly structure reduces the life-cycle costs of yankee cylinder drive units.

The design of the new yankee cylinder drive series is an optimal solution for production-optimized tissue machines, Moventas Santasalo explains. The unique pre-load arrangement of the main bearing is a completely new design the company has developed to optimize load distribution. This stabilizes the running of the yankee cylinder drive unit and consequently extends bearing lifetime. Additionally, the pre-load arrangement of the main bearings is adjustable, for instance in situations when a unit is used as a spare reducer for opposite-handed tissue machines.

The new series, running with two main motors, will be available in three different sizes. All feature maintenance-free labyrinth seals. The hollow shaft inside diameter can be up to 540 mm. The forces caused by the rotary steam joint are taken into account in both possible running directions of the yankee cylinder drive. The new drive unit can be equipped with Sunday drive in three alternative mounting arrangements.