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Roll forming lines for complex profiles

For more than 100 years, SEUTHE, a company of the ASMAG Group, near Dusseldorf, has been developing tube mills and roll forming lines on which steel, stainless steel and ferrous metals are processed. All lines are mechanically and electrically developed, assembled and automated in-house at SEUTHE: Nearly all of the parts used are manufactured in the group's production facilities and, like the line itself, tested in trial operation prior to delivery. The associated quality guarantees set SEUTHE well apart from the other providers in this industry. In addition, customers appreciate the custom developments and process requirements tailored to their respective needs, which justify the company's reputation world-wide.

For more than three decades now, SEUTHE has been designing and manufacturing the same roll forming lines for strip widths up to 1,300 mm and wall thicknesses of up to a maximum of 5 mm.

For complex cold-rolled profiles, there are numerous sales opportunities in the automotive industry, the energy industry, the construction and mechanical engineering, the furniture industry and agriculture, to name a few industries. However, the trend is increasingly headed towards applications where high strength profiles, dynamically changed cross-sections, composite profiles or highly complex profile shapes are required.

In addition, customers are demanding complex and progressive processes and product requirements to obtain demonstrable competitive advantages, to react to market demands flexibly or to be able to produce more efficiently and powerfully.

In addition to the goal of reducing operating and maintenance costs, customers prefer the SEUTHE "Made in Germany" quality standards not only because of the sound engineering and the long service life of the equipment, but they also place great value on the modular set-up, which offers an extremely flexible adaptation to the respective process and product requirements. Diverse options of adjustability, short set-up times and simple operation are also in demand.

The latest development highlights of roll forming lines are:

  • Modular variation of forming stands as a change module design (rafted design) for the "off-line" setting up and "online" producing in order to minimize machine downtimes.
  • All forming stands are driven by individual motors per shaft. This prevents the different relative speed between the belt and roller, thereby optimizing the forming geometry. The individual drive leads to energy savings and to the reduction of tool costs.
  • The solution of the single drive per roller axis (separated at the top and bottom) driven by a servo motor offers a number of advantages: improved energy efficiency, the ability to precisely determine the speed and velocity on each roller axis or to prevent an over-control or under-control of the performance values. 
  • The tricky manual coupling and uncoupling of the cardan shafts each on the bottom and main shafts was fully automated by a newly developed system. Not only is the line availability drastically increased in this way, but the occupational safety for the operator and maintenance personnel is also increased considerably.
  • The line concept can be adapted for existing exchangeable plates (rafted design). Existing production tools will therefore be adopted with rack systems.

SEUTHE delivers all machines for all roll forming processes: Strip preparation, strip accumulation, roll forming stands in multiple numbers, high frequency or laser welding tables, sizing units and different flying saw or cutting units, including roller conveyor, sorting table as well as a stacking and bundling unit – all in outstanding quality MADE by SEUTHE.

Photo credit: Copyright voestalpine Krems, Austria

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