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Project description
The 20-high reversing mill at HUGO
VOGELSANG has undergone extensive
modernization by ANDRITZ Sundwig.
The complete control electronics now
correspond to today’s state-of-the-art
equipment. Moreover, the drive and
control systems have been replaced,
and all drive motors completely over-
hauled. A modular and digital control
system consisting of automatic thick-
ness, strip shape and strip tension con-
trols, as well as a strip guiding system
are now being used as a replacement
for the previous line control system.
The automation system deals with co-
ordination of the classic sequence and
media control, as well as including a
technological process computer to en-
sure optimum production. Operation of
the line is controlled from a centralized,
air-conditioned, main control stand. For
this purpose, the rolling mill operator is
assisted by a comprehensive process
visualization system as well as a video
system. Extension of the fault indication
and evaluation tools permits a prompt
analysis of any deviations occurring, as
well as contributing to line process op-
timization and improved maintenance.
In designing the main control stand,
particular attention was directed to the
ergonomic design of the working envi-
ronment. The hydraulic screw down of
the mill and the control device for inter-
mediate roll shifting were also renewed
at the same time. The horizontally ad-
justable steering rolls added in the entry
and exit sections enable simple rolling
of wedge-shaped strip. In order to opti-
mize the strip guiding system, the entry
and exit tables were re-machined. In the
mill stand itself, the cooling and spray
plates were optimized and the rolling oil
cooling system provided with a new filt-
ration system.
Line data
CustomerHUGO VOGELSANG GmbH & Co. KG,
Hagen, Germany
Strip thickness 0.04 mm-3.5 mm
Strip tensions 6 kN-180 kN
Strip speed 500 m/min
Material C-steels and alloyed steels
Rolling force 2,400 kN
Drive power 2 x 450 kW
After modernization work, strip thickness
deviations of 1-2 microns and strip shape
deviations of 4-6 I-units were achieved. The
quality reports below show the strip thick-
ness and strip shape results during accep-
tance tests for a selected wedge-type strip.
▲ Statistical process control
ANDRITZ Sundwig’s scope of supply
Mechanical modernization projects
Hydraulic screw down
Axial shifting of the intermediate rolls
Guide and spray plates
Steering roll unit with shielded shapemeter roll
Modernization of the shape measurement and control systems
Electrical modernization of the mill stand and
the rewinding groups
Automation systems
Technological control systems for strip thickness, roll force,
strip tension, strip guiding, and strip flatness
Drive technology
Main control desk with process visualization and video system
Technological process computer
▲Reversing mill with recoiling groups
Double coiler, revolver type
Rewinding group, left Rewinding group, right
Roller-type coiler
All data, information, statements, photographs, and graphic illustrations in this leaflet are without any obligation and raise no liabilities to or form part of any sales contracts of ANDRITZ AG or any affiliates for equipment and/or systems referred to herein. © ANDRITZ AG 2013. All rights reserved. No part of this copyrighted work may be reproduced, modified or distributed in any form or by any means, or stored in any database or retrieval system, without the prior written permission of ANDRITZ AG or its affiliates. Any such unauthorized use for any purpose is a violation of the relevant copyright laws. ANDRITZ AG, Stattegger Strasse 18, 8045 Graz, Austria ASundwig.Vogelsang.Modernisierung.20-Rollen-Reversiergerüst.EN
ANDRITZ Sundwig GmbHStephanopeler Str. 22, 58675 Hemer, GermanyTel.: +49 (2372) 54 0Fax: +49 (2372) 54 200sundwig_welcome@andritz.com
Turnkey systems for the processing of steel, stainless steel, coated metals, non-ferrous metals and special materials
Cold rolling mills for reducing, skin passing, cladding, and finish rolling in 20-high, S6-high (18-high), 12-high, 6-high, 4-high, 2-high designs and combinations of 2-high/4-high or 4-high/S-6 high design, available as one-way, reversing or tandem mill, in-line and offline
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Automation Complete electrical equipment including drive systems, process automation and level-2-systems for cold rolling mills, strip processing lines and finishing lines. Technological control systems for cold rolling mills, such as thickness control systems (AGC) as well as fully automatic roll change systems for rolling mills
Modernization of existing production equipment
Our scope of supply
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