Tag Archives: Mass Finishing

Croom ‘Engineers Movement’, Partners with Rosler for Surface Finishing

Since 1984, Croom Medical has supplied global healthcare companies with outsourced manufacturing services of high-precision components and medical devices. The Ireland-based company is an industry leader utilizing high-tech, high-growth, cutting-edge medical device manufacturing technology.

When it came to the design, manufacture, and installation of its initial orthopedic implant finishing systems, Croom Medical chose Rosler as its strategic partner. As production and throughput of medical implants increased to the point of expansion, Croom once again turned to Rosler.

The Situation

From the initial contact to the final installation and commissioning, Croom’s expansion occurred under somewhat complicated circumstances. Falling within COVID restrictions, extra care and consideration had to be paid to meet the project’s expected timelines and incorporate required safety protocols.

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AM Solutions Automates Smoothing and Homogenization for Printing Job Shop

When Klaus Stöcker (Stöcker) started offering ready-to-install 3D-printed plastic and metal components to its customers, the job shop initially utilized manual post-processing methods. Due to the rapidly growing demand and stricter requirements for process stability and consistency of these operations, the company took a new approach when it purchased two automated systems from AM Solutions, a brand of the Rosler Group.

The initial purchase included an S1 for de-powdering and an M1 Basic for surface smoothing and homogenization. Based on excellent processing results, a second M1 Basic system was recently commissioned as a cost-efficient alternative to chemical smoothing.

The Situation

Klaus Stöcker metal processing was founded in 1990 in Wermelskirchen-Dabringhausen, Germany. Since then, it has grown to employ approximately 60 team members and offers a wide range of services in the field of machining. This includes turning, milling, sinking and wire EDM, face and circular grinding, assembly, and measuring with state-of-the-art machinery.

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ITAR Compliance Protects Surface Finishing Customer Data, National Security

Protecting sensitive customer information is a priority at Rosler whether in the form of intellectual property, proprietary manufacturing designs, or non-disclosure agreements. When it comes to matters of security and safety, we’ve gone a step further to create International Traffic in Arms Regulations (ITAR) Compliance Programs.

In addition to delivering industry-leading mass finishing and shot blasting equipment, consumables, and service, Rosler’s expertise includes discrete handling of customer information in all industries, including aerospace and defense.

What is ITAR?

Administered by the U.S. Department of State, the legislation that created ITAR regulates the import and export of defense and military-related technologies. Its intent is to prevent foreign access to technologies included in the United States Munitions List (USML) by controlling access to the technology itself and associated data.

All companies and organizations involved with manufacturing, exporting, or furnishing defense articles and services – including second- and third-tier suppliers – are required to register with the Directorate of Defense Trade Controls (DDTC) and comply with ITAR regulations.

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Partnership Provides Excellent Finish for Deep-Drawn Medical Components

Deep-drawn functional components are increasingly being utilized in the production of medical and pharmaceutical products. To meet the strict standards for manufacturing and quality management in the field of surface finishing, Hubert Stüken GmbH & Co. KG has relied on mass finishing solutions and consumables from Rosler for more than 30 years.

Founded in 1931, Hubert Stüken GmbH & Co. KG is a family-owned business with manufacturing operations at five locations in Europe, Asia, and the United States. Its product range includes stamped and bent parts, plastic-coated components, and complex assemblies.

Rosler works with Stüken Medical, the company’s medical business division which focuses on medical and pharmaceutical engineering, to meet the increasing demand for deep-drawn metal components.

Andreas Hellman, Manager of the ISO 13485-certified business division, explained, “Components used in the field of medical and pharmaceutical engineering must meet strict quality standards. The same strict standards apply also to the actual production operations. For this reason, we have pooled the required know-how for the development and production of such precision components at Stüken Medical.”

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Single-Source Supplier Helps Job Shop Operation Expand into New Markets

As a supplier of mass finishing and shot blasting equipment as well as consumables and service, Rosler understands the need for multi-faceted operations and the corresponding flexibility, cost-effectiveness, and innovation required to be successful.

B+S Metallbearbeitung GmbH (B+S), a job shop based in Southern Germany, also provides various surface finishing services. Its multi-faceted mass finishing operations include deburring and polishing as well as shot blasting, part cleaning, and packaging.

B+S handles a broad range of work pieces with different shapes, made of different materials, requiring different finishes, and coming from all kinds of industries. To create a streamlined and one-stop supplier, B+S chose to work with Rosler for its surface finishing equipment and consumables.

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Interlinked Mass Finishing and Cleaning Systems Half Processing Time

Because of a positive experience with four continuous flow washing machines operating at its headquarters, VIA Oberflächentechnik (VIA) decided to work with Rosler for a comprehensive mass finishing and cleaning operation.

The resulting interlinked system meets the most demanding cleanliness specifications while achieving significant cycle time reductions and cost savings and providing a high degree of operational flexibility.

The Situation

Headquartered in Lennestadt, Germany, VIA sought an integrated solution for de-oiling, mass finishing, and deep cleaning of stamped and formed parts. 

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Mass Finishing Work Piece Handling Series, Part 3 – Maintaining Wear Linings

Adequate wear linings are an important factor in ensuring work pieces are efficiently handled in a mass finishing machine. Along with the method speed of transfer as well as the media selection and separation, the condition of a machine’s wear lining factors into the quality of process results.

Thick linings assist with work piece handling by providing a cushioning effect, yet thin or damaged wear linings allow unwanted knicks, scratches, and dings.

With more than 80 years of expertise in surface finishing, Rosler can assist with all aspects of your mass finishing process including proactively eliminating potential work piece handling issues.

Observing Machine Conditions

Regularly checking the lining of your work bowl(s) and trough(s) for wear is one way to ensure parts don’t get accidentally damaged during processing. Inspecting linings consistently will help identify repairable issues before permanent damage to the machine occurs.

To effectively finish work pieces, media must be matched to the specific finishing task and the initial state of a work piece.

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How to Use a Vibrascope to Measure Vibratory Bowl Amplitude and Frequency

When it comes to mass finishing, amplitude and frequency require balance and careful consideration. Amplitude is a measure of movement and intensity while frequency refers to the rate of repetition.

The wrong amplitude, for example, can create lackluster finishing results and longer processing times if it is too low. If too high, it can cause unnecessary wear and tear on the machine.

Creating Vibratory Energy

Whether rotary or tub style, mass finishing vibrators always include two key components: a work bowl containing the finishing media and the work pieces.

Firmly attached to this work bowl is a vibratory drive system generating the energy to put the media and work pieces in motion. The work bowl with an attached vibratory drive system sits on a number of coil springs – in some cases on air cushions – which in turn sit on a machine base. The springs, respectively, act as air cushions allowing the work bowl to “free float” up and down within a certain distance.

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Hot Air and Media-Based Systems Offer Drying Options for Mass Finishing

With few exceptions, mass finishing processes require the addition of water and compounds to produce the desired results. That means finished work pieces discharged from the finishing machine are wet.

Since possible corrosion or problems with subsequent manufacturing steps are possible, the finished work pieces must undergo a drying operation. While not as complex as the mass finishing process itself, drying nevertheless requires careful consideration to ensure that the work pieces are completely dry and free of any water or dirt spots.

Rosler has extensive experience developing dryers for a wide range of work pieces and the expertise to assist with process parameters and settings.

Work Piece-Based Machine Settings

Machine settings for speed and temperature must be matched to the work pieces and their surface condition to ensure the lowest possible energy use to complete the task.

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Mass Finishing Work Piece Handling Series, Part 2 – Preventing Drop Height Damage

Ensuring drop heights are not too high when raw work pieces are loaded into and exiting a mass finishing machine is an important consideration.

Rosler has extensive experience developing mass finishing machines as well as material handling accessories to create a productive and efficient surface finishing system and prevent drop height damage. When evaluating drop heights and machine configuration needs, it is recommended that you consult an experienced equipment provider to help review key machine aspects and suggest solutions tailored to your unique needs.

Issues to Avoid

Falling from a loading container into a machine as well as moving from the machine into a post-process collection can cause damage to work pieces in the form of nicking and scratching caused by contact among work pieces as well as with the machine itself. More delicate and/or sharp work pieces, therefore, require extra consideration and evaluation of drop heights than sturdy and rounded components.

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