TPT July 2016

T UBE M I L L S & R OL L FORM I NG L I NE S

Roll forming lines for complex profiles FOR more than 100 years, Seuthe, a company of the Asmag Group, based near Düsseldorf, Germany, has been developing tube mills and roll forming lines on which steel, stainless steel and ferrous metals are processed.

roller, thereby optimising 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 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.

industry, construction and mechanical engineering, as well as the furniture industry and agriculture. 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 are impressed with the Seuthe standards 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 developments 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 minimise machine downtimes. • All forming stands are driven by individual motors per shaft. This prevents the different relative speed between the belt and 120x120mm for a max thickness 8mm at max speed 80m/min (stainless steel). Each line is complete, from decoiler to cut-off. The mills can produce all the square and rectangular tubes within the size range without change of any rolls in forming, welding, sizing, straightening and clamp jaws in cut-off. That means total elimination of all cost for roll sets. The main advantages of this technology are speed in changing the profiles dimensions, easy maintenance and simplicity in the software utilisation. With this innovative solution the mill makes it easy to produce both square and rectangular tubes by means of a computerised control, where all data is

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. Seuthe prides itself on its strict quality guarantees. In addition, customers appreciate the custom developments and process requirements tailored to their respective needs, which justify the company’s reputation worldwide. For more than three decades Seuthe has been designing and manufacturing roll forming lines for strip widths up to 1,300mm and wall thicknesses of up to 5mm. For complex cold-rolled profiles, there are numerous sales opportunities in the automotive industry, the energy

Seuthe GmbH – Germany Email: sales@seuthe.com Website: www.seuthe.com Three tube mills installed by Olimpia 80 Photo credit: © voestalpine Krems, Austria

stored in order to produce all the tube sizes in the range in the most practical way. The PLC records all the useful data and it is possible to create particular “shapes” with different angles: from the PC it is possible to see the “tube flower” of the tubes that will be produced. The average time for changing tube set-up dimensions is around ten minutes and average saving on raw material (strips) compared to traditional tube mills is five to seven per cent.

THREE complete tube mills with linear cage forming technology for square and rectangular sections have recently been installed in Turkey and Finland by Olimpia 80. The “little” mill is the smallest of the company’s range and can produce square and rectangular sections from 20x20 up to 60x60mm for a max thickness 3.5mm at max speed 150m/ min (carbon steel). The second one can produce square and rectangular sections from 40x40 up to 120x120mm for a max thickness 8mm at max speed 90m/min (carbon steel). The third one can produce square and rectangular sections from 40x40 up to

Olimpia 80 Srl – Italy Fax: +39 0523 864584

Email: olimpia@olimpia80.com Website: www.olimpia80.com

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J ULY 2016