New technology widens rollformer application use

Driven diagonal rollers

Dreistern, Germany, has created a new concept in rollformers, with a priority of expanding the range of applications for the machine to ensure better utilisation under new, complex conditions.

Like all models of the P3-series, the new P3.Flex allows the user to set-up any type of cross-sections. With the push of a button the machine changes into Flex-mode, and can be used like a duplex rollformer with variable width for the production of U, C, C+ or profiles.

Another feature of the machine is that sections of the machine can be adjusted independently within Flex mode. This allows a highly complex part family with a variable cross-section, eg a leg with variable width, to be manufactured without additional cost for tooling or additional lost time for rolltool settings. All adjustments are fully automatic, enabling dimension changes to be performed in less than three minutes.

Dreistern’s P3.Flex works in a zippered merge pattern (patent pending), meaning the rollers form the profile similar to a zip, alternating at the left and the right side of the profile. To adjust the profile width, each second stand can be moved laterally to set-up for the new profile width. Thanks to driven diagonal rollers the P3.Flex is suitable for processing sheet metal blanks.

After adjusting the P3.Flex, a new section can be produced immediately.

P3.Flex creates opportunities for the flexible production of product families with a high degree of dimensional variation, and the concept can be retrofitted to many existing machines.

PUBLISHED: 07 Jan 10