Fully automatic operation for perfectly polished coin blanks

Rösler Oberflächentechnik GmbH
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Coin Blanks Finishing center – compact plug-and-play solution for processing blanks

With the compact coin blanks finishing center Rösler has developed an innovative processing system for coin blanks, which meets the requirements of Industry 4.0. It allows the fully automatic, efficient and impingement-free finishing of different types of blanks with a maximum of process safety.

The new coin blanks finishing center from Rösler allows highly precise and impingement-free processing irrespective of whether the blanks are made from precious or other metals, or whether they are intended for coin collectors, memorial coins or circulation coins. The work bowl, equipped with noise protection, the system controls, the compound dosing unit, the screening unit with rinse station and undersize classification are all integrated into the skillfully designed, compact enclosure of this innovative plug-and-play system. Special electronic interface features allow remote communication with the finishing center, which can be directly linked to a drier (for example, to a hot air linear vibratory cloth drier for stain-free drying) and an intermediate storage device. All process stages and system components are displayed in real time on a large touch screen providing a complete system overview. This makes the coin blanks finishing center a high-value, ergonomic work station for the operator, giving them complete visual control of all process stages and the possibility to quickly react to any abnormal events that might occur during the process

Fully automatic operation that can be easily adapted to specific coin blanks

The system PLC allows for storing of around 100 different, product-specific processing programs, which, of course, also includes the timing for the separation stage. Once the work bowl is loaded with coin blanks and media, the respective program starts automatically. To ensure gentle separation of the finished work pieces from the processing media, the work bowl is directly connected to the vibratory screening unit. This allows the mix of finished coin blanks and media to slide onto the screening unit without any hazardous drop height whatsoever, allowing the coin blanks to stay embedded in the media all the way to the screen. Even extremely delicate precious metal coin blanks can be separated without any nicking. Of course, the separation unit can be equipped with a spray-rinse unit for cleaning the finished blanks prior to drying. Undersize media that no longer meets the process requirements is automatically discharged during the vibratory screening cycle.

When it comes to easy, time saving maintenance, the coin blanks finishing center is equally impressive. All critical system components for example, pumps, are easily accessible through access doors. Direct access to all electrical components contributes not only to the space saving design but also helps facilitate maintenance work.

The new coin blanks finishing center with its modern design was first introduced to the public at the World Money Fair 2017 in Berlin, where it drew a lot of attention.

As international market leader Rösler Oberflächentechnik GmbH offers total solutions in the field of mass finishing and shot blasting, painting & preservation systems and mass finishing consumables. In addition, Rösler offers a broad spectrum of surface finishing technologies (deburring, descaling, desanding, polishing, surface grinding,…) for work pieces made from metal and other materials. Headquartered in Germany with plants in Untermerzbach/Memmelsdorf and Bad Staffelstein/Hausen, the Rösler group also maintains sales and manufacturing branches in Great Britain, France, Italy, the Netherlands, Belgium, Austria, Serbia, Switzerland, Spain, Romania, Russia, Brazil, India, China and the United States.

MPA_Konstruktionszeichnung_mit_Trockner
MPA_Konstruktionszeichnung_mit_Trockner

The new coin blanks finishing center with processing bowl, control panel, dosing and separation unit is placed within a space saving enclosure. Various electronic interfaces allow programming of the subsequent work piece drying and intermediate storage stages and integrating them into the overall system controls.

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