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MediaService Digital Industries Newsroom

For every size - Engineers use Siemens technology to create filling plant for different package sizes

The filling line (center) for the plant developed to customer order, can be reconfigured with minimum effort from small package to big-bag filling. The filling line (center) for the plant developed to customer order, can be reconfigured with minimum effort from small package to big-bag filling.

Different sized packages are normally processed on different machines. However, one of Burgener’s customers needed a plant which could weigh and fill both small and large packages (big-bags) – in spite of the significant variations in dosing weights. The experts at Burgener were more than happy to take on this challenge. And the engineers‘ inventiveness was piqued as, apart from anything else, the plant had to be calibrated to a dosing accuracy of 10grams to OIML (International Organization of Legal Metrology) standards whilst also operating in a 2/22 ATEX zone (potentially explosive atmosphere). Burgener therefore chose the reliable and highly accurate Siemens SiwarexWP251 weighingelectronics for this new concept of a modular filling line.

The compact Siwarex WP251 weighing electronics provide highly accurate and reliable control of the dosing and filling process independent of the plant control.The compact Siwarex WP251 weighing electronics provide highly accurate and reliable control of the dosing and filling process independent of the plant control.

Autonomous weighing electronics

The concept is based on the principle that the weighing module can be changed mechanically depending on the size of the package. One set of scales measures from 100 grams to 150 kilograms while a second covers 500 grams to 1,500 kilograms. Both sets of scales are equipped with Siwarex WP251 weighing electronics and are integrated into the same operating panel. The weighing modules are therefore independent of the central plant controller, a Simatic S7-1500, and its cycle times. This means that an extremely high processing accuracy can be achieved. A Simatic S7-1500 controller manages the material parameters, amongst other things, and sends them with the defined nominal values to the weighing electronics. The weighing modules can be easily commissioned, set, and operated without programming via a Simatic touch panel or the functional elements of a Simatic controller.

Burgener AG designs and builds bulk material packaging lines for the food, chemical and pharmaceutical industries. Burgener AG designs and builds bulk material packaging lines for the food, chemical and pharmaceutical industries.

New to the range

“The Siwarex solution offers us a major benefit: the weighing technology can be easily integrated into the HMI (Human Machine Interface). This also helps keep plant costs down,” explains Jan Kuonen, Member of the Burgener Management. “The reliability and ease of maintenance of the Siemens equipment is also very important to us.” With this level of success, it is no surprise that Burgener has since included the plant in its range as a standard solution.

Contact

Ursula Lang

Digital Industries

Gleiwitzer Str. 555
90475 Nuremberg
Germany

+49 (911) 895-7947