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Polishing Processes Benefit from Pre-tumbled Media

Media selection is key in any surface finishing process since these consumables are essential “precision tools” required to achieve the specified finishing results. Whether you are developing a new mass finishing process or changing process parameters including different work pieces, process times, and requirements, partnering with an experienced expert will help you in evaluating all process parameters. With decades of experience developing mass finishing machines and manufacturing media and compounds , Rosler is an excellent source for guidance. In some cases, pre-tumbled media may be suggested. What is Pre-tumbled Media? After production, some types of pre-polishing and polishing media are pre-tumbled by the manufacturer. This process breaks sharp points and corners off individual media pieces to create smoother edges. Without this step, media still has sharp edges and a relatively rough surface. For heavy‐duty deburring and surface grinding this abrasiveness produces a welcome benefit. Yet for pre‐polishing and polishing purposes it is a distinct disadvantage since the initial surface conditions of the media can cause micro scratches and prevent the desired smooth/polished finish. Polished knives processed with pre-tumbled media When is Pre-tumbled Media Useful? The need for pre-tumbled media applies primarily to finishing tasks requiring a very smooth surface finish with the ultimate goal of a high-gloss polish. These polishes can only be achieved with pre-tumbled media. In addition to the desired process, the state of the process may also factor into the need for pre-tumbled media. For new processes requiring a complete load of new media, the use of pre-tumbled media is an absolute must while media for established processes may not need pre-tumbling if only small quantities of new media are added to offset media wear and undersized media discharge. When in Doubt, Test Your Media. Whether your process uses ceramic, plastic, or drying and polishing media, a crucial step in selecting media should always be consulting experts, i.e. your supplier. Since a media change might require extended test trials, an experienced partner should test prospective media with your specific work piece in their test lab. Rosler test center The Rosler Way With more than 80 years of experience in surface finishing, the Rosler team is well equipped to provide media selection guidance and FREE testing in our global test centers . For new processes and adjustments, contact us for all your surface finishing and media needs!

Double-batch mass finishing system for wet and dry finishing process

Highly flexible and efficient solution for processing of zinc die-castings Gjuteriteknik, a Swedish foundry specialized in zinc die-casting, was looking for a mass finishing system that allows the fully automatic and cost-efficient running of different finishing processes. With the mass finishing system R 420 2-CH Rösler was able to provide the ideal solution. This system allows the simultaneous dry or wet processing of two work piece batches, including the drying of the finished work pieces, with a high degree of process stability. In the mid 1990’s the foundry Gjuteriteknik AB, founded in 1978, made the strategic decision to exclusively specialize in the production of zinc die-castings. This family-owned company, located in Värnamo, Sweden, and run by the second generation owners Jonas und Peter Abrahamsson, has successfully established itself in this field and produces about one million castings per day. The company’s services include the design phase for a product, the production, surface refinement and logistics. With this comprehensive portfolio the zinc die-casting specialist Gjuteriteknik is partner of a wide range of companies active in the fields of telecommunication, electronics, automotive, furniture and construction in Europe, Asia and South-America. A recipe for success - flexibility, quality and automation Jonas Abrahamsson comments: „Zinc die-casting is a relatively small segment in the foundry industry. To be competitive on an international level, as a Swedish company we must not only be highly flexible in the fulfillment of the customer requirements but must also be very cost-competitive. We have achieved this by the implementation of highly automated processes throughout our entire manufacturing operation”. Mr. Abrahamsson continues: „Our goal is to produce casting qualities that require no additional processing. However, if the work pieces had to be deburred, we did this predominantly in fully automatic shot blasting cells. One reason for this approach was that our old mass finishing system offered only very limited processing possibilities and required a lot of manual operations”. Therefore, when the company decided to purchase a new mass finishing system, its main requirements were flexible processing possibilities, an automated process from the loading of the work pieces to their discharge after the drying operation and a high capacity. Because of its excellent experience with the existing Rösler mass finishing and shot blast equipment, Gjuteriteknik decided to purchase a system that consists of a double-batch rotary vibrator, model R 420 2-CH , a hot air belt dryer and a centrifuge for cleaning and recycling of the process water. Another reason for purchasing the Rösler system was that it fully met the cycle time requirements of the customer. Efficient, parallel wet or dry processing At the center of the double batch system, allowing the parallel processing of two work piece batches, is a rotary vibrator with a gross volume of 420 liters that is suitable for wet as well as dry finishing operations. „We already had one project for dry finishing of the work pieces. And we knew that the demand for dry finishing would grow significantly. Therefore, it was very important for us to process the work pieces fully automatically, which so far had not been possible. For this reason, process flexibility had top-priority”, explains the managing director. For the mass finishing operation customer-supplied bins with raw work pieces are placed into the lift and tip loading device that transfers the work pieces into a vibratory hopper. After the operator has entered the work piece identification into the PLC, the work piece specific processing program starts automatically. While the vibratory hopper transports the raw zinc die-castings into the rotary vibrator, the loading device moves back into its home position. This allows placing another batch of work pieces into the loader and selecting the respective program. After the pre-programmed processing time an unload gate in the bottom of the rotary vibrator is opened, and the mix of media and finished work pieces is discharged onto a vibratory buffer with an infinitely adjustable vibration intensity. As soon as the processing bowl is empty, the unload gate is closed, and the processing bowl is filled with another batch of media and raw work pieces. At the same time the vibratory buffer gently transfers the mix of finished work pieces and media into the vibratory screen separation unit, where media and work pieces are separated. An undersize media screen ensures that during the separation operation media that has become too small, is discharged from the system. This ensures a high process stability. Within certain time intervals new media is manually added to the system. The area around the vibratory separation unit was designed as a separate safety zone, which can be safely entered, while the rotary vibrator is running. This allows placing empty part bins for work pieces that were finished in a dry process and discharged through a movable vibratory cross conveyor. Work pieces that underwent a wet finishing process are transferred to the two meter long hot air belt dryer R 2000 BT. Cleaning and recycling of the process water by centrifuge During wet finishing processes a high water-compound flow through the rotary vibrator ensures a complete and safe flushing out of contaminants such as metal and media fines, etc. The water/compound mix flows into the rotary vibrator from the top, is discharged through bottom drains and then pumped to the semi-automatic centrifuge Z 800. To promote the separation of the solids from the process water in the centrifuge, flocculants are automatically dosed into the process water. The cleaned water is pumped to a clear water tank. As needed, compound is injected into the process water fully automatically. This guarantees a constant compound concentration and, therefore, absolutely repeatable, high-quality finishing results. Jonas Abrahamsson concludes: „The new mass finishing system permits us to adapt our finishing processes to the work pieces and, thus, enables us to perfectly fulfill the requirements of our customers. We are very happy with the new equipment and feel that we are well prepared for any future finishing challenges”.

wet blasting technology, part 4 - typical wet blasting applications

Wet blasting can do nearly any job that is done with dry shot blasting . The defining differences are that wet blasting does so more gently and without producing dust. In addition, wet blasting can handle a small amount of oil and grease unlike dry blasting. At Rosler , we have more than 80 years’ experience in surface finishing . While wet blasting has gained popularity recently, we’ve used this technique to provide precise, repeatable results to a number of industries over the years. Typical Applications With proper testing and process parameters, wet blasting can achieve numerous surface finishing goals. Cleaning A fastener with heat discoloration before versus after wet blasting. Depending on the work piece’s starting condition and successive finishing steps, rust, scale, oxidation, road grime, grease, and oil may need to be removed. Wet blasting can accomplish a variety of cleaning applications including: Dies and molds such as die castings and tire and glass molds. Automotive rebuilds such as engines, transmissions, brakes, etc. Investment castings such as boat propellers, pump impellers, housings, valve bodies, etc. Aircraft engine rebuilds. Various components before inspection or secondary processing. Burr Removal Hydraulic components before and after wet blasting. Work pieces with flashings and burrs must undergo deburring and deflashing. For example, firearm components require burr removal after drilling, milling, and turning. Drill bits and milling tools also require burr removal. Descaling Despite the newest heat treatment processes, discoloration, oxidation, scale, and hard residues are found on cast and forged products as a result of manufacturing and environmental influences. Modern production methods, control and testing processes, and an uninterrupted continual processing of the cast and forged parts requires clean, light work piece surfaces. Surface Texturing Creating a somewhat rougher surface finish is a key step in preparation for painting, coating, and bonding with glue. Ensuring that subsequently applied coatings have a rough enough surface to adhere to improves the quality and life span of a work piece. Examples of wet blasting applications for surface texturing include: Preparation of automotive parts for rubber coating such as brake and engine seals. Surface preparation to place a corrosion protection coating for screws. Surface preparation to place a primer on airplane components such as rotor blades, stringers, and wing spars. Orthopedic implants in which osseointegration and bone growth around the implant are encouraged. Light profiling of tibia plates, knee femorals, hip stems, and spinal implants helps promote this bone growth. Stripping of Paint and Coatings Wet blasting is ideal for stripping of paint and coatings from delicate work pieces. Processing of mineral-based construction materials such as concrete or sandstone, glass, textiles, and wood is possible with Rosler machines as well as the finishing of plastics and metals. Cosmetic Finishing Wet blasting removes machining lines from aluminum gun bodies as shown in these before and after examples. Wet blasting serves as an excellent method of applying a uniform, matte finish on work pieces. This finish can take various forms, including: Creating a pre-polish finish smoother than what can be achieved with dry blasting. Applying a non-glare, matte finish such as the finish required for surgical instruments. Masking machining lines on a variety of parts like tibia implants or aluminum gun bodies. Shot Peening Landing gear includes many wet blasted components. Shot peening is a process specially developed to improve the properties of components which are exposed to changing strains. For safety reasons, shot peening is also now absolutely necessary in the aviation and space industries . Shot peening is also essential in all industries requiring long lives for components including the automotive sector. Wet blasting applications for shot peening are mainly used in conjunction with Almen strip N for glass beads, ceramic beads , and stainless steel shot . Additive Manufacturing Post Processing Additively manufactured components before and after wet blasting. Wet blasting is an essential technology for various post processing tasks, specifically additive manufacturing. Wet blasting cleans the 3D printed components by removing residual powder and significantly reduces their initial high surface roughness. It is capable of de-powdering and providing general surface cleaning and initial surface smoothing from Ra = 1,000 micro inches down to Ra = 40-60 micro inches (25 µm to 1–1.5 µm). On metal AM parts the loosely sintered grains on corners are effectively removed. The wet process eliminates the worry about residual powder containment or sparking during the blasting process. De-contamination of nuclear power plant components Manual wet blast cabinets allows for same removal of contaminants. Removal of small, radioactive fragments from the component surface in nuclear power plants can also be achieved through wet blasting. The process decontaminates the components to a point where they can be declassified as radioactive. Special consideration regarding the water treatment are required to meet the requirements for this application. The Rosler Way With a trusted partner such as Rosler, you don’t need to worry about the ins and outs of an application. Contact us to discuss your wet blasting needs and challenges and we will deliver a solution. We’ll even demonstrate results with FREE sample processing in one of our global test centers . That’s the Rosler Way. The complete Wet Blasting Technology Series includes: Part 1 – “Wet Blasting Gently Delivers Dramatic Finishing Results.” Part 2 – “Comparing Attributes, Advantages to Dry Blasting.” Part 3 – “Technical Features, Slurry Control Achieve Precise Finishing.” Part 4 – “Typical Wet Blasting Applications.” Part 5 – “PureFinish® Offers Food-Grade Excellence.” Sign up for enews alerts to be notified of all Rosler blog posts!

Rösler introduces fully automatic antistatic compound replenishment system - another milestone for process safety and quality

Electrostatic charges are frequently a reason for difficulties in our everyday life. The use of plastic blast media, such as polyamide, inevitably causes electrostatic charging of the media pellets, work pieces or dust particles with the result that these items are sticking to each other. This can impede the handling and functionality of the work pieces. Especially the carryover of dust and blast media can cause serious problems with downstream manufacturing operations ranging from equipment failures to the malfunction of electrical components. For many years this problem has been overcome by the addition of liquid antistatic compounds, which are dosed into the blast chamber with special nozzles from a storage tank. The dosing quantity is predominantly controlled by timing relays, timing switches or timing functions in the PLC. Fully automatic dosing of the antistatic compound offers significant benefits To date the machine operator had to manually replenish the antistatic compound in the storage tank. This requires the mixing of a relatively small quantity of antistatic concentrate with a relatively large quantity of water. A major problem with the manual mixing procedure is that a permanent achieving the optimum mixing ratio is rather difficult. A poor mixing ratio will not lead to a sufficient remove of dust and residual blast media from the work pieces and can, therefore, seriously threaten the overall process safety. With the development of the “automatic antistatic dosing equipment” the Rösler experts found a way to overcome this problem. For the automatic replenishment process the machine operator simply enters the exact mixing ratio between concentrate and water on the PLC touch panel. As soon as the minimum fill level in the storage tank has been reached, water is automatically added through the connected water pipe. At the same time a dosing pump is adding a precise quantity of antistatic concentrate from a special canister. This ensures that the pre-defined mixing ratio between water and antistatic compound is maintained during the entire shot blast process. The result is a drastic improvement of the process safety and quality. Faulty dosing of the antistatic concentrate and handling of the empty storage tank are, therefore, completely eliminated.

Exploring the shot blasting process - Simulation helps create perfect surface finishes for raw castings

In the foundry industry many production processes are developed by the use of simulations. But the actual casting phase is followed by further manufacturing stages adding value to the raw work pieces. One such operation is the surface refinement by shot blasting and mass finishing as offered by the Rösler company. Both technologies are cleaning the castings and generate precisely defined surface characteristics. The development of shot blasting systems and the underlying shot blasting processes is mostly based on decades of experience and knowhow. In its efforts to further refine these processes and improve their efficiency, the Rösler Oberflächentechnik is utilizing various simulation software modules and adapting them to specific surface refinement targets. With the modified software the achievable work piece surface finishes can now be demonstrated. Furthermore, it allows simulating various treatment modes such as single piece or batch processing, where the work pieces are tumbling over each other. The knowledge gained by such simulations provides valuable information about the optimal arrangement of the blast media acceleration systems like turbines or blast nozzles in relation to the work pieces to be blasted. With the software such processes as blast cleaning, cosmetic blasting, blast chipping and shot peening can be demonstrated. It also allows the simulation of different work piece transport systems to analyze the mixing and shot blast effect in work piece batches, where the work pieces are tumbling over each other. The simulations have shown that the blast performance of actual shot blast processes can be improved by 20 to 30%. Such improvements are directly reflected in shorter cycle times and reduced energy consumption.

Centrifuge Technology, Part 2 – Operational and Economic Benefits of Recycling Process Water

During mass finishing , the process water injected into the finishing machine is contaminated with the chemical ingredients of the compounds , fines from the grinding or polishing media, and metal fines from the work pieces. In case of ball burnishing, when acidic or alkaline compounds are used, the process water can also contain dissolved metals or be alkaline or acidic. Or, for example, when the work pieces are covered with oil from machining or stamping operations, the water can even be contaminated with oil. Rosler has developed a series of closed-loop, water circulation systems using centrifuge technology to remove these contaminants regardless of their origin and allow clean process water to be reused and/or safely discharged. In addition to offering more effective work piece processing, cleaning process water saves money and the environment through reduced consumption, compound usage, disposal costs, and regulations. Mass finishing input and output Environmental Stewardship Depending on the machine size, type, and its application, a single mass finishing machine can use between 10 and up to 250 gallons of water per hour amounting to as much as 2,000 gallons during every 8-hour shift. Considering that the average household uses approximately 140 gallons per day, this is a lot of water that is literally going down the drain. The centrifugal cleaning process separates solids in the form of media and metal fines from the process water without removing the compound. This allows the cleaned process water to be reused in the mass finishing machine. A small amount of compound is consumed to keep the process stable and some water losses occur due to carry-out by the work pieces and evaporation. On average, centrifugal cleaning and recycling of the process water results in water and compound savings of 90 to 95%. Reduced Municipal Regulations Centrifuge technology does not require approval from municipal water authorities since the cleaned process water is reused rather than being discharged into a sewer. Recycling process water saves time by not having to undergo the elaborate discharge approval process. It also eliminates the need for regular water analysis to ensure that the cleaned water going to sewage is indeed in compliance with the legal limits for hazardous materials. https://videopress.com/v/gU0wE8kR?preloadContent=metadata Easy Operation Contrary to conventional waste water cleaning methods, centrifuges are easy to operate and require very little operator involvement. Above all, they require no special training or specialized knowledge. The water level in automatic centrifugal cleaning and recycling systems is automatically monitored, and any water/compound losses due to carry-out and evaporation are made up by fully automatic water/compound dosing units. For applications in conjunction with high-energy mass finishing machines that generate a lot of heat, the centrifuges can be equipped with a special cooling system for controlling the temperature of the process water. In case of semi-automatic centrifuges, an operator must periodically remove the accumulated sludge in the centrifuge drum. This is typically done once every few hours or once per day. In fully automatic centrifuges even the sludge removal is automated. A timer-controlled peeling knife periodically removes the sludge from the drum wall and discharges it into a waiting sludge bin. All the operator must do is empty the sludge bin every few days or, in some cases, weeks. At left, a fully automatic centrifuge during the cleaning cycle is shown. On the right, a sludge discharge peeling cycle is shown. The Rosler Way Centrifugal process water cleaning and recycling makes a significant contribution towards ecologically sustainable production and is a prime example for environmental stewardship in manufacturing. Contact Rosler today to learn how we can improve the efficiency and economic impact of your mass finishing process. Previous posts in the Centrifuge Technology series include: Part 1 – “Water Cleaning Systems Replace Outdated Methods.” Part 2 – “Operational and Economic Benefits of Recycling Process Water.” Part 3 – “Mechanics and Limitations of Water Recycling.” Part 4 – “Pre-Conditions and Consumables Enhance Process Efficiency.” Upcoming posts in the Centrifuge Technology series will include: Part 5 – “Potential Issues and Remedies for Water Recycling.” Sign up for enews alerts to be notified of new posts!

Time for digital transformation: Innovative digitalization solutions for shot blasting and mass finishing technology with Rösler Smart Solutions

While digitalization is already more or less advanced in various industrial sectors, it is still in the development phase in surface technology, especially in shot blasting and mass finishing. In order to drive the digital transformation forward, we are constantly working on new, innovative digitalization solutions and will offer adequate solutions under the Rösler Smart Solutions brand in the future. The field around Rösler Smart Solutions makes it possible to comprehensively monitor and control work and production processes and to intelligently link and process data. They thus create added value for plant operators and set a milestone in the digitalization of shot blasting and mass finishing technology. The first products will be commercially available from spring 2021. Learn more about Rösler Smart Solutions

Top quality – Rösler installs a convincing new plastic de-flashing system at Berker in in Ottfingen

For over 30 years the Berker GmbH & Co KG has been de-flashing plastic components like switching elements, electrical outlet covers, frames, etc., with Rösler shot blast equipment. The company is mainly using continuous feed systems such as loop and flat belt machines. Berker – since 2010 a member of the Hager Group – is one of the leading manufacturers of high-end electrical components – from timeless classical switches to intelligent electrical systems for buildings. The company also supplies switches for electrical appliances and automobiles. Because of an increasing production volume at its Wenden-Ottfingen manufacturing location, in 2018 Berker had to invest in an additional shot blast machine. The new investment was intended to replace an existing continuous feed loop belt system with the latest de-flashing technology. The specifications called for increased capacity and a high equipment availability. After the capacity requirements had been established, Rösler developed a system concept that fully met the customer’s technical and economic demands. Equipped with two direct-drive blast turbines, the new Rösler machine produces excellent de-flashing results combined with an extremely high degree of process stability. This is achieved by a host of technical features like modern PLC controls, an optimized media cleaning and recycling system with vibratory screen and air wash separator, a sensor-controlled media replenishment unit, the automatic replenishment and mixing of anti-static compound, noise protection, an automatic-stand-by module and the Rösler dust collector emitting a minimum of residual dust. An additional bonus was that the new machine design allows the automatic de-flashing of large work pieces, which could not be handled with the old equipment. The above technical highlights convinced the Berker GmbH & Co. KG to purchase the new continuous feed loop belt blast machine RSBS 1702 from Rösler. Unfortunately, the Corona pandemic caused a delivery delay. But the new plastic de-flashing system could finally be commissioned at the customer’s Wenden location in July 2020.

Wet Blasting Technology, Part 3 – Technical Features, Slurry Control Achieve Precise Finishing

Numerous technical features combine to make wet blasting an effective method of surface finishing . When expertly combined by an experienced finishing expert such as Rosler , this method can achieve precise and repeatable results on a variety of work pieces from a wide range of industries . A general understanding of the essential technical elements of a wet blasting machine will help you select a machine for your specific needs as well as prolonging the efficiency and life of existing wet blasting equipment. Technical Highlights Rosler Wet Blast Schematic The numbered diagram details the wet blast principle and the basic features of a wet blast system. Blast chamber with slurry tank – A mix of media and water is stored in this holding tank found at the bottom of the blast chamber. The chamber is made of stainless steel. Compressed air – Approximately 70 PSI of compressed air accelerates the slurry. Blast gun(s) – One or more guns accelerate the slurry supplied by the slurry pump with compressed air. Blast media feed – Media enters the machine. Slurry pump – This high-powered mechanism transports the slurry to the blast gun(s). Larger wet blast systems can be equipped with multiple pumps. Slurry agitator (stirrer nozzle) – In order to keep the media suspended in the water, the slurry pump diverts some of its flow to a stirrer nozzle placed in the tank to agitate the mix of water and abrasives. Overflow – Small media particles, dirt, and other contaminants tend to stay suspended and are skimmed off and sent to the filtration unit. Water filtration system – Media particles and debris skimmed off the water’s surface must be passed through a filtration system to separate still usable media and process water from waste. Common filtration methods include hydro cyclones, weir tanks, bag filters, paper band filters, and semi- and fully automatic centrifuges. Filtered water – Once processed by a water filtration system, water is returned to the slurry tank and reused. Exhaust vent – The water mist mixed with media fines and other small particulates is removed from blast cabinet by suction fan-equipped filters. Controlling Slurry Concentrations Depending on the specific wet blast process, the typical concentration of abrasive media in the slurry ranges from 10 to 40% by volume. Establishing the ideal concentration usually requires more or less extensive processing trials. During the blast process the media wears by becoming smaller or fracturing and must be removed from the system. To make up for this loss, good media must be added. To consistently achieve the desired high-quality blasting results, the established slurry concentration must be maintained within a very tight tolerance range of 1-2%. This can be done by visual inspection of the viewing glass and manually adding media as needed. However, in larger blast systems the slurry concentration is controlled automatically with an ultrasonic level sensor, a weighing system, or continuous density measurement. Adding media to the desired concentration level can be done manually or through an automated, PLC controlled media adder. Manual slurry concentration measurement unit The Rosler Way Building standard and custom wet blasting equipment to deliver precise, repeatable results is the Rosler Way. Contact us to learn how we can solve your surface finishing challenges and to request a FREE sample processing in one of our global test centers . The complete Wet Blasting Technology Series includes: Part 1 – “Wet Blasting Gently Delivers Dramatic Finishing Results.” Part 2 – “Comparing Attributes, Advantages to Dry Blasting.” Part 3 – “Technical Features, Slurry Control Achieve Precise Finishing.” Part 4 – “Typical Wet Blasting Applications.” Part 5 – “PureFinish® Offers Food-Grade Excellence.” Sign up for enews alerts to be notified of all Rosler blog posts!

Helfen macht Spaß: Rösler spendet für regionales Hilfsprojekt

Gerade die aktuelle Corona-Pandemie zeigt, wie wichtig Solidarität ist. Deshalb folgten wir auch in diesem Jahr wieder dem Spendenaufruf des Obermain-Tagblatts und unterstützen die Leseraktion „Helfen macht Spaß“, die sich für hilfsbedürftige Menschen in der Region einsetzt. So können dank der finanziellen Unterstützung Weihnachtsgeschenke an Bedürftige verteilt, Finanzspritzen für Familien in Not gegeben oder finanzschwache Alleinerziehende unbürokratisch unterstützt werden. Auch in diesem Jahr geht ein besonderer Dank an unsere Lieferanten, durch deren großzügige Spendenbereitschaft konnte erneut ein hoher Betrag zusammengetragen werden, welcher durch Rösler nochmal großzügig aufgestockt wurde. Insgesamt konnte so eine stolze Summe von insgesamt 8.000 Euro gesammelt werden. Bei einem Besuch in der Rösler Academy nahm HMS-Initiator und OT-Redakteur Till Mayer gemeinsam mit BRK-Kreisgeschäftsführer Thomas Petrak den Scheck freudestrahlend entgegen und bedankte sich herzlich bei Stephan Rösler für diese besondere Spende. „Nicht erst durch die Corona-Pandemie sind unzählige Menschen unverschuldet in Schieflage geraten. Daher ist es wichtig, sich als regional verwurzeltes Familienunternehmen seiner gesellschaftlichen Verantwortung bewusst zu sein und sich solidarisch mit denen zu zeigen, die Hilfe benötigen“, so Stephan Rösler.