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Company holidays in foundries – peak period for the maintenance and the HWS service department

During the summer holidays, the melting furnaces in most foundries are shut down for a few weeks. 

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Successful trade fair in Brazil

Great companies are characterized not only by excellent products and equipment, but also by maintaining relationships with their customers and those who will become them.

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Innovative through research

For the year 2022/2023, Heinrich Wagner Sinto Maschinenfabrik has been awarded the "Innovative through Research" seal of the Stifterverband für die Deutsche Wissenschaft e.V. (Donors' Association for the Promotion of Sciences in Germany).

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Can Atik on flying visit at HWS

On Friday, May 13th HWS was visited by Mr. Can Atik.

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JULY 2022

Company holidays in foundries – peak period for the maintenance and the HWS service department

During the summer holidays, the melting furnaces in most foundries are shut down for a few weeks. 

In order to still serve their customers, the foundries have prepared and filled up their stock for this period accordingly. While the employees now enjoy their annual vacation, the “hour of the maintenance people” strikes.

The season for maintenance usually reaches from early June to mid-September. Besides the Christmas holidays, the calendar weeks 25-33 the peak periods during which all available HWS technicians are away for customer visits.

We have also prepared ourselves accordingly, i.e. scheduled and planned the service visits, manufactured the corresponding components, purchased, manufactured and delivered spare and wear parts, written and tested the software changes and made many other preparations.

Once the deliveries have arrived at the customer's site, our technicians and fitters travel worldwide to implement the service projects. All these assignments are meticulously planned - delay is not an option. 

When the melting furnaces are started up again in a few weeks, the plants will be running again until Christmas or until the next summer break - that's the way it should be!

We wish all maintenance staff and our colleagues every success for the coming weeks.

JUNE 2022

Successful trade fair in Brazil

Great companies are characterized not only by excellent products and equipment, but also by maintaining relationships with their customers and those who will become them.

From June 13-16, the largest foundry fair in South America "FENAF" was held in Sao Paulo.
The first fair after the Covid pandemic, many interesting talks and discussions were held, a personal exchange took place, things that were missing for such a long time.

Heinrich Wagner Sinto, Omega and Sinto Brasil say thank you for the successful fair.

One Global Sinto.

MAY 2022

Innovative through research

For the year 2022/2023, Heinrich Wagner Sinto Maschinenfabrik has been awarded the "Innovative through Research" seal of the Stifterverband für die Deutsche Wissenschaft e.V. (Donors' Association for the Promotion of Sciences in Germany). Since 2014, the association has dignified research-based companies for the special responsibility they assume for the state and society.

The Stifterverband is one of the largest private science sponsors in Germany. In addition to its commitment to young academics, excellent universities and world-class research, the association also collects data on the German research and innovation system, for example. How much does business invest in research and development in Germany? What effect does this have on the future viability of this country? These questions are the focus of the R&D survey, which the science statistics unit at the Stifterverband conducts annually on behalf of the Federal Ministry of Education and Research. (source:


Can Atik on flying visit at HWS

On Friday, May 13th HWS was visited by Mr. Can Atik. He was very impressed by the dimensions of the new “HWS5” moulding line, which will be ready for shipment end of June.

German Foundry Day in Muenster

On May 5th and 6th, the German Foundry Day took place in Münster after a two-year break due to the pandemic.

In addition to highly interesting specialist lectures, the personal exchange was at the forefront of this event. So there was a great joy that the "foundry family" could meet again. The foundry evening was also used to revive old contacts or to make new ones. We would like to thank all participants who visited us at our information stand, as well as the BDG for the professional organization.




Masayoshi Koyama, Atsushi Nagai, Dirk Terlinden, Andreas Klein (from left to right)

Board of management of Sintokogio meets
mayor of Bad Laasphe

The CEO of Sintokogio, Mr. Atsushi Nagai from the group headquarter in Nagoya/Japan, was able to visit the German subsidiary in Bad Laasphe after more than two years.

Mr. Nagai took advantage of his short visit for an exchange of ideas with Mr. Terlinden, the mayor of Bad Laasphe.

APRIL 2022

64th Austrian Foundry Congress

After a pause of two years due to the pandemic situation, the Austrian Foundry Congress of ÖGI was held again this year from 28th to 29th April 2022 in Leoben, Austria. 

We thank all participants for the good conversations and discussions as well as for the professional realization with interesting lectures.







During CASTEXPO 2022 in Columbus, Ohio/USA, held from 23rd to 26th April 2022, we have conducted good conversations with numerous visitors.

We would like to thank everyone who visited our booth!

MARCH 2022

Farewell to Managing Director Minoru Hirata

Mr. Minoru Hirata, the long-time Managing Director of HWS, returned to his home country Japan on March 19, 2022, to take up a new position with Sintokogio as of April 1, 2022. As "General Manager of Foundry Equipment Division," he will be responsible for the entire foundry equipment division. In addition, Mr. Hirata will continue to help shape the fortunes of HWS as Managing Director, based in Toyokawa, Japan.

In a small ceremony, management and staff in Bad Laasphe said goodbye to their managing director. Management spokesman Andreas Klein thanked Mr. Hirata for his extraordinary commitment and active support. With his invaluable experience as an engineer and foundry specialist and his friendly and intelligent manner, he was and remains a great role model for all of us, also regarding the guidance and training of our young engineers. Following the speech, Mr. Klein presented Mr. Hirata with a master key for the company as a memento of his time at HWS and as a sign that he is always welcome in Bad Laasphe. Mr. Hirata expressed his gratitude for the good cooperation during his time in Bad Laasphe and emphasized that he would like to further support and promote an even closer connection between HWS and the foundry division of Sintokogio.

Mr. Hirata had first joined HWS from Sintokogio from 1993 to 1998, and with a great deal of expertise and innovative spirit had driven the development of the center molding machine and the SEIATSU flex process. In 2014, he had then returned to Bad Laasphe in the position of Managing Director. Under his leadership, the new USR sand reclamation unit was developed, which we have already been able to successfully sell and commission in Germany. In addition, the new product line of casting machines for aluminum gravity die casting of the PLS and LPD series was brought to market maturity, which will give HWS an even broader position in the global foundry market. 

We sincerely wish him all the best and much success for the new challenge and his further activities in Japan.





New moulding plant for India - A German-Indian joint project

A new twin-type moulding machine "ZFA-S 4" with a moulding box size of 850 x 650 x 250 / 250 mm is currently being installed at our plant in Bad Laasphe. The picture shows the moulding machine in an early stage of assembly.

The electrically driven moulding line with a total capacity of 200 moulds/hour is a joint project together with our Indian sister company, Sinto Bharat Manufacturing Private Ltd. The main components of the moulding line are produced in Germany, while parts of the line peripherals are manufactured directly in India.

The plant will be delivered in April 2022 and then installed and commissioned at the customer's site.




Portal vent hole piercing unit successfully tested

HWS will install a portal vent hole piercing unit as a retrofit to an existing moulding line for a renowned operator of a green sand foundry in the Netherlands. Following successful tests at our main plant, the unit will be delivered to our customer still this year.

The unit, which is fully electrically driven on all axes, offers the customer the possibility of piercing vent holes from above through the mould surface at all points of the mould. The vent hole piercing unit is integrated into the existing line control system and operates fully automatically in line with the
plant cycle.

This investment increases the customer's flexibility and precision in vent hole piercing. Up to now, the plant has only been operated with a hydraulically driven unit that pierced the vent holes into the mould back from below.



Successful machine replacement

Since last week, Mahindra & Cie. Automotive Ltd. in Pune/India have been operating a new HWS moulding machine EFA-SD 4.5 with an output of 120 moulds/hour.

The new HWS moulding machine replaces an elderly Georg Fischer DISA machine, which was replaced and integrated into the existing plant periphery within a very short period.

With this order, Heinrich Wagner Sinto underline their competence as a specialist for plant retrofits of all existing machine producers.



HWS – 自动化技术改造

2021 年圣诞节期间,将在现有的 HWS 工厂中改装自动浇口杯和进料器钻孔装置。 到目前为止,这些活动都是在客户的工厂手动执行的。 改造将在圣诞节期间极短的工厂停工时间内实现。 HWS 对其自己的工厂以及所有其他制造商的工厂进行改造工作。









2021 年 11 月 9 日至 10 日,第 57 届铸造大会在捷克共和国布尔诺举行。 在我们的展位上,我们欢迎来自全国各地的铸造工人,其中很大一部分是 HWS 的老客户。












2021 年 10 月 27 日至 28 日,第 11 届 VDI 大会“发动机制造中的铸造技术”在马格德堡的玛丽蒂姆酒店举行。 由于这是德语地区铸造厂和发动机制造商最重要的论坛,我们当然再次出席。



显而易见的是,必须避免排放而不是转移排放。 气候保护需要全球解决方案。 作为全球活跃的机械设备供应商,我们支持您共同开发新技术和改进现有技术。



弗莱贝格的 Ledebur 座谈会吸引了众多观

Bergakademie Freiberg 技术大学铸造学院第 30 届 Ledebur 座谈会于 2021 年 10 月 28 日至 29 日举行,来自铸造行业的众多专业观众和铸造学院的学生参加了会议。

继去年的活动取消后,与会者再次能够从当前的讲座中获得有关铸造工程最新趋势的广泛信息。 我们公司还向观众展示了当前机器技术的最新发展以及对铸造行业未来的展望。 在弗莱贝格蒂沃利 (Freiberg Tivoli) 成功举办的晚间活动中,讨论以随意的方式继续进行,去年因疫情而没有进行的友好接触得到了新发展。




Successful trade fair participation at Targi Kielce in Poland

The trade show Targi took place from 19th to 21st October 2021 in Kielce/Poland.

We thank our Polish representation EUROCAST INDUSTRIES for the excellent organization and cooperation.

We had pleasant conversations with the numerous visitors at our booth and would like to thank all attendees for their visit.











Grand international sales meeting at Heinrich Wagner Sinto Maschinenfabrik

From October 6 to 8, 2021, numerous representatives of the worldwide sales network met with the HWS team in Bad Laasphe after successful months of incoming orders. We are particularly pleased that our sales partners took the long journey despite travel restrictions to meet again in person after a long time of virtual meetings and to discuss the latest product developments at HWS.

Many thanks for your participation and the constructive exchange of ideas!




Rear view of the USR-II machine as a detail of the complete plant

1st HWS sand reclamation unit (USR-II) started operation

HWS commissioned the first mechanically operating sand reclamation unit type USR-II. The plant processes a mixture of used sand comprising green sand and core sand with a total plant capacity of approx. 1.5 t/h. The reclaimed material is already being successfully used in the customer’s own core shop.

The complete plants, designed by HWS in modular construction type according to customer’s specifications, achieve a processing capacity of up to 5 t/h per production line. At the same time, the sand reclamation plants expand the in-house material and cycle management under ecological and economic aspects.

Control layout of the plant




New investment at Atik Metal in Aliaga, Turkey

The family-owned company Atik Metal, one of the most traditional Turkish foundries, has decided to expand the company significantly. Founded as Atikler Koll. Sti. İn 1954 and renamed as AKDÖKÜM San. Tic. A.S. in 1967, the company has constantly developed.

Since the beginning of the years 2000, the business focused more and more to the European market. Since 2008 the demand for high-quality casting products has strongly increased, therefore the owners decided to build a brand new foundry under the name Atik Metal close to the city of Izmir. The foundry is working to fullest satisfaction with three tight-flask moulding lines delivered by Heinrich Wagner Sinto (HWS).

As the size of the castings and the number of orders increased constantly, Atik Metal decided to build a further new foundry as a green field project. Atik Metal will then produce approx. 100.000 t/grey and ductile iron castings for powertrain and agricultural machinery. First discussions between Atik Metal and HWS about the implementation of new moulding lines into the existing foundry were held during the GIFA exhibition 2019 in Düsseldorf. Quite fast, it became clear that the free space in the existing foundry was too small for the planned extension of the capacity. Therefore, Atik Metal decided to build a new foundry opposite to the existing premises. The progress of the project became more difficult due to the Corona crisis, however was not stopped. During numerous Web-meetings, the project was developed to the final stage. HWS is proud to be selected once again as supplier for the moulding lines  HWS 5 and 6. Moulding line HWS 5 is a ZFA-SD-5,5 type and has a flask size of 1.100mm x 950mm x 350+50mm (cope)/ 300mm (drag) and an output of 220 moulds/h. In a second step some months later, Atik Metal will install a further new moulding line type EFA-SD7,5 with a flask size of 1.700mm x 1.400mm x 550+70mm (cope)/ 450mm (drag) and an output of 80 moulds/h. This new foundry with the corre sponding moulding equipment will set new standards in the foundry industry.


61st IFC in Portoroz

After a participation from our side has unfortunately not been possible last year, we were pleased to be there again this year.

Thank you for visiting our booth at 61st IFC in Portoroz.

Fit for the Future:
Reclamation of Used Sand
instead of Landfilling

The iron foundry WESO-Aurorahütte GmbH (WESO) based in Gladenbach/Hessen, makes an investment in a new, mechanical reclamation system of used sand made by Heinrich Wagner Sinto Maschinenfabrik GmbH (HWS) who are located in the nearby city of Bad Laasphe. The joint project for upgrading the material and cycle management of the foundry is another milestone for enhancing the sustainability.

For WESO, taking responsibility for the region and the environment is an integral part of the company's corporate philosophy. The economical use of production resources - including sand - is therefore essential. Because even the raw material sand, the most used resource after water, is only available in limited quantities.

Landfilling of used sand cannot be a sustainable model for handling this valuable resource. As HWS offers a full service with the mechanical regeneration process and its own technical center to support green sand foundries, a cooperation of both companies with the aim of sand regeneration was obvious.

The reclamation of used sand ensures a higher sustainability by increasing the recycling rate, reducing the volume of transport and the associated reduction in CO2 emissions as well as the expanded use of materials in the internal recirculation system. In this way, it contributes to securing the long-term future of the site. This was confirmed by WESO when, after an intensive planning phase and reclamation tests, they decided to place the order for the USR (Ultra Sand Reclaimer) sand reclamation unit with HWS in January 2021. The reclamation of used sand to produce a basic moulding material that is similar to fresh sand closes one of the last gaps in the material cycle of the green sand foundry that is otherwise highly efficient already. For this purpose, the new plant will take its place in the tower of the sand preparation plant. The compact design and the modular concept enabled individual planning into the existing trades.

The core component of the overall plant for mechanical green sand reclamation, the USR unit, is expected to process the foundry's used sand for reuse from the end of 2021. The unit uses a gentle and efficient friction process to clean the sand grains. It combines flexibility in terms of individual used sand properties and quantities with low grain wear and high yield of reclaimed material. The process is controlled based on defined target values for reuse. At WESO, the reclaimed material is to be used proportionally as a substitute for new sand both in the core-making shop and in green sand processing.

The plant concept developed and the planning into the existing structures were optimized for the related application in close cooperation between the two companies. The planning was based on the reclamation tests carried out at HWS as well as the analyses of the reclaimed material carried out by the customer and the required plant capacity. Finally, a plant with a processing capacity of 1.5 t - 2.5 t per hour was designed for WESO, depending on the target quality of the reclaimed material to be achieved. Furthermore, additional capacity reserves have already been taken into account in the design, so that a later capacity increase can be realized by retrofitting additional modules. The short start-up times of the reclamation plant allow flexible adaptation to the current production capacities at any time and fast access during maintenance operations. In addition to real-time balancing of the production of reclaimed material, the fully automated plant is equipped with an Energy Monitoring System (EMS), among other things, to ensure transparency with regard to ongoing plant consumption.

In addition, the scope includes individual interfaces for data communication and integration into the customer's IT system landscape.

The entire system is currently in the planning and production phase. The first production steps have already begun, and commissioning at WESO in Gladenbach is planned for the current calendar year 2021.

Almost at the same time as the order for the new sand reclamation plant was placed, HWS was also entrusted with the modernization of the pouring area on the existing HWS twin-type moulding plant ZFA S6. With these two projects, the long-standing and successful joint past of the two companies will be led into an equally promising future.

HWS test plant, Bad Laasphe
WESO-Aurorahütte in Gladenbach

Extension of the HWS Moulding Plant
as a Module for New Paths of WESO-Aurorahütte GmbH

The company WESO-Aurorahütte GmbH (WESO) extends jointly with Heinrich Wagner Sinto Maschinenfabrik GmbH (HWS) the pouring area of the existing HWS twin-type moulding plant and thus also the product portfolio of the foundry. With the investment into another pouring line for pouring ductile iron, the company will be capable to expand the casting spectrum that already has a large variety by other innovative products.

With approx. 400 employees and a foundry tradition of more than 125 years, WESO see their role as a traditional and at the same time modern company. Best prerequisites for an order with the company HWS from nearby Bad Laasphe. WESO are at home on the world market and known for high-quality iron castings. As an innovation and system partner, proximity to customers is not a foreign word, but a daily business that is already supported during the planning and design of the components. The own downstream production up to the ready-to-install assembly of the castings guarantees an optimal process control for a high competitiveness. Continuous investments in new technologies and proven processes create excellent conditions for a secure future at the Gladenbach foundry site.

When planning the extension of the pouring area, WESO laid the foundation for the new plant concept with its sound expertise and many years of experience in operating a fully automatic moulding plant. Together with the engineers from HWS, a concept was developed in which the challenges of the structural conditions had to be taken into account. At the same time, a stable production process of the foundry had to be ensured until the new pouring line is switched over and integrated. The new pouring line is planned as a parallel extension of the existing pouring line and will be integrated into the moulding plant on the opposite side next to the HWS cooling house. One of WESO's objectives was to retain the proven processes in the nearby plant environment and to increase flexibility with an additional pouring unit on a second pouring line, while at the same time utilizing the consistently high quality of the existing HWS moulding line. Additions to the moulding plant of e.g. transfer trucks as well as pushing and damping units, ensure the shortest possible installation and commissioning time.

HWS see themselves as a system supplier of turnkey new moulding plants, pouring machines and sand reclamation plants. As another important - and increasingly significant - mainstay, HWS are active in the field of retrofitting moulding plants - both those of their own manufacture and those of other manufacturers. Even if it is not always immediately obvious at first glance: numerous retrofits, extensions, plant optimizations and also the replacement of entire core components are successfully in use all over the world and prove the production stability of HWS plant technology.
Investment goods such as tight-flask moulding plants are often in use for several decades and can be restructured again and again by retrofits. Typical here are cycle time optimization, cooling time extensions, the installation of new technologies and even complete control system modifications. As a global player, HWS have a high value-added chain and achieved a leading position on the world market thanks to many unique features.

Currently, the extension of the WESO moulding line has passed through production of parts and subassemblies after completion of the planning phase and has been in final assembly since the beginning of June 2021. Delivery will take place in July, followed by installation at the customer's site. This will be followed directly by the switch-over, which will be carried out during the company holidays from the end of July 2021.
Due to the tight time slot, this conversion is an enormous challenge, which, however, avoids a loss of production thanks to perfect planning in shift operation by all those involved in the project. Together with the additional pouring line of the ZFA-S6 moulding plant, HWS was commissioned to install a USR-II sand reclamation plant for green sand at the Gladenbach site. The production start of this project is trendsetting and will also take place in 2021.