Achieving material savings even faster and more reliably

June 5, 2023

A new, self-learning optimization algorithm improves the tube thickened end control of the atrac® smart control for stretch-reducing mills.

In the case of frequently unavoidable larger wall thickness deviations in the area of the shell ends, the setting of the thickened end control must almost always be actually adapted. In the past, the operator had to perform this task until the automatically adapting thickened end control was introduced. This operation mode carried out the operator's working method, using data storage for the tube sequence and a defined optimization algorithm to achieve a better result that was above all independent of the operator.

In fact, the task of adapting the thickened end control to the current rolling situation is a complex optimization task: by selectively varying several interdependent parameters, an optimum (shortest possible end losses) must be achieved as quickly as possible under specified boundary conditions.

A new improved optimization method solves this task perfectly. For this purpose, the currently valid relation of the parameters (= the formulation of their dependence on each other) is used to execute the variation of several parameters simultaneously, instead of separately and successively, thus minimizing the number of optimization steps. The relation of the parameters is first specified and then automatically optimized with help of practical results. The relation (depending on the rolling situation) is stored and reused together with successful parameter combinations. In this way, a faster, self-learning optimization algorithm for multiple optimization parameters is implemented, another step in the permanent further development of the atrac® system.

LTC (Local Thickness Control)

May 13, 2023

Newly developed and already proven in production use is the automatically adapting local wall thickness control smart LTC (Local Thickness Control) as an integral part of the smart control of the atrac® system. Local wall thickness deviations are the changes in the average wall thickness related to the individual tube cross-section over the length of the rolling stock. This is made up of various parts: a trend that is similar from tube to tube, individual deviations that differ from tube to tube, and measurement data errors. Due to the complex composition of these local deviations, it is difficult to adapt a pre-control using the measurement data of the pre-tube based on the measurement data of the rolled tube. A newly developed algorithm now performs this task perfectly and automatically. The smart LTC thus supplements the atrac® smart control with the self-adapting TEC (Thickened End Control) and MTC (Main Thickness Control).


February 18, 2023

Another tube mill relies on atrac® automation (information letter).


March 1, 2021

On March 1, 2021, the long-term cooperation between Engels Informatik GmbH and DEHUA GmbH was reorganized. DEHUA GmbH takes over the atrac system and continues business with this product. The cooperation and the personnel base, i.e. expertise and experience, are essentially retained, so that our customers receive the same quality of product and service they are accustomed to. The contact person is now DEHUA GmbH.

Season's Greetings and a Happy New Year!

December 21, 2018
Happy Holidays!

One of the real joys of the Holiday Season is the opportunity to say 'Thank you' for the passing year and to wish you happiness and success for the whole new year.

Happy Holidays!

Your Engels Informatik Team

NEW: The next development stage in the process control of stretch-reducing mills: atrac® smart control

December 04, 2018
<b><i>atrac</b></i>® smart control - the next development stage in the process control of stretch-reducing mills

In rolling mills, we repeatedly come up against the problem that the operator inputs for the parameters for controlling the crop ends and thus also the result depend strongly on the respective operator.

We re-analysed the problem and chose a completely new approach for our system. That's how atrac® smart control originated.

atrac® smart control can work without any operator intervention. In the course of a rolling process, it constantly compares the results obtained with the set rolling parameters and adapts them, if necessary, until the thickened ends are minimal or the mill has reached the physical limits.

Also taken into account is the protection against material tearing and other critical situations in the rolling mill, therefore: "it will be optimised to the limit".

The best results are stored at the end of the rolling lot and will be reused as the starting parameter for comparable production lots in the future. Then the self-regulation will continue.

Therefore, the problems that have occurred in the past will no longer occur.

The enthusiastic reaction of our customer confirms it: atrac® smart control is a great system, it delivers excellent results!

You can find more information in this short description. For further inquiries, we look forward to your contact.

For good seamless tubes: atrac®. Leading, future proof, reasonably priced.

NEW: atrac® MTS - Material Tracking System and Quality Management

October 12, 2018
New solution in the <i>atrac</i>® family: Material Tracking System and Quality Management atrac® MTS

With atrac® MTS you get a better overview of the entire production line, from the furnace to the cooling bed.

To accomplish this, all process data is collected, the rolling material tracked and evaluated via technological process models. Consequently, the entire production line becomes more transparent, and the system automatically notifies of quality-relevant actions. As a result, you achieve higher product quality, safety, and transparency in production.

Learn more about atrac® MTS - download our flyer!

For good seamless tubes: atrac®. Leading, future proof, reasonably priced.

快速的便携式监控,全新的APP atrac® SRM:Lite

全新的APP atrac® SRM:Lite


新的移动APP atrac® SRM:Lite 的目标是通过灵活的访问及更快的反应提高 atrac® 系统的作用。


  • 实施访问当前和历史文件
  • 快速发现问题,更快做出决定
  • 发送关于严重错误的通知,如壁厚过小
  • 让每一个安卓机变成一个移动的 atrac® 操作台

了解更多, 请下载宣传页。

Season's Greetings and a Happy New Year!

December 20, 2017
Happy Holidays!

Season's Greetings and a Happy New Year!

Engels Informatik delivers atrac® to Rohrwerk Maxhütte

September 28, 2017
Logo Rohrwerk Maxhütte

After the first success in Asia, the first atrac® automation system has now started operations in Germany.

Only three months ago, Engels Informatik GmbH received an order from the Bavarian Rohrwerk Maxhütte GmbH for the supply and installation of the automation system atrac® - now the system is already used for production. The advantages of quality and cost of pipe production are achieved.

The high-quality tube manufacturer was convinced by the innovative and low-cost system. Fast delivery and a short commissioning time were the decisive arguments.

The system of the mill manufacturer used until now in the production plant in Sulzbach-Rosenberg has been replaced by the atrac® system in a seamless transition within a few days, without any downtime for the Maxhütte production.

Thanks to the atrac®, the steeped in tradition tube rolling mill will achieve an even better quality of the final product, with optimal utilisation of the raw material and thus will be able to even better maintain its ultimate goal of "seamless quality".

Rohrwerk Maxhütte GmbH belongs to the Max Aicher group of companies, which is wholly-owned by the Aicher family. The company devolops reliable and sustainable solutions since 1952 and reacts to customer requirements in the short term.

Engels Informatik is pleased to be able to enter into a close partnership with the Rohrwerk Maxhütte, which will help to integrate practical insights into steel pipe production into the future system versions.

Engels Informatik GmbH was founded by Thomas Engels in 1995 in Mönchengladbach, Germany. The company's strength lies in providing design, implementation, and operation of secure, highly-available systems that are directly incorporated worldwide into customers' production processes.

atrac® is the product of Engels Informatik GmbH.

atrac® - automated stretch-reducing of steel tubes

April 10, 2017
Flyer: atrac® - automated stretch-reducing of steel tubes

Our new flyer "atrac® - automated stretch-reducing of steel tubes" is ready for download!

Among others, the advantages of the atrac® system are:

  • big savings of material due to drastically reduced crop end losses,
  • a much better quality of the end product thanks to the new optimisation technologies as well as
  • a clear and informative operator interface.

Learn more - also about our successful atrac® installation in South Korea - download our flyer!

For good seamless tubes: atrac®. Leading, future proof, reasonably priced.

Merry Christmas and a happy New Year!

December 16, 2016
Merry Christmas!

We wish you and your families Merry Christmas and a happy New Year!


Logo DEHUA Handel + Beratung GmbH

为了尽可能大量获得无缝钢管生产厂家的用户,恩格斯有限公司和德国门兴格拉德巴赫市 德华贸咨询有限公司 达成合作协议,旨在共同开发 atrac® 市场。德华公司将作为恩格斯公司在中国市场的代表进行 atrac® 的推销。


如果您的钢管轧机在中国而您又对 atrac® 感兴趣的话,请按照下列电子邮件地址联系.

& www.dehua-gmbh.com/zh.

关于 atrac® 模型组件


优质无缝钢管的定义是,在钢管横截面和长度方向上壁厚恒定。在无缝钢管生产中如果避免了钢管壁厚偏差,可以节省生产成本,充分利用资源,提高市场竞争能力, atrac® 系统具备了这个能力,向无缝钢管生产者提供各种模型方法。通过4组模型组件集中了轧机工艺诀窍,是无缝钢管工艺专业人士多年来的经验和智慧结晶。


SRM:Expert (专家系统)




SRM:Manager (管理系统)

通讯联系,可视化控制,报告系统 监控和纪录系统-用于管理通讯联系和信息处理。



SRM:Control (控制系统)




SRM:Archive (归档系统)





© 2021-2023 DEHUA Handel + Beratung GmbH


DEHUA Handel + Beratung GmbH
Bismarckstr. 100
41061 M&ounl;nchengladbach


engelsinformatik_phone  +49 2166 / 2567856