Household technology case study: Designer panel for the Thermomix TM5 from Vorwerk

At a glance:
Development and construction of an injection moulding tool using 3-component technology for the production of the designer panel for the Thermomix® TM5 from Vorwerk.

The customer:
Vorwerk & Co. KG was founded in Wuppertal, Germany in 1883 and is an international group of companies which has remained a family-run company to this day. The Thermomix® from Vorwerk is a powerful food processor combining 12 different functions.

The task:
The Thermomix® TM5 was introduced simultaneously around the world for the first time, which further increased requirements on the mould, especially with regard to production reliability and quantity. The designer panel is also a visually distinctive component which puts the highest demands on processing. Hofmann’s task was to create a 3-component serial-production mould guaranteeing production quantities in the millions while at the same time meeting the special quality requirements of the Thermomix® TM5 panel surface.

The solution:
To achieve optimum results, very close cooperation between Hofmann and the customer was crucial during the product development phase. A trial mould was also constructed to test production of the components. Thanks to the expertise of Hofmann – Ihr Impulsgeber, precise colour separation on the designer panel as desired by the customer was achieved. The experts also found a way to overspray the clear-as-glass PMMA, which is difficult to process, as a top layer. Among other things, this was achieved through a clever distribution of the sprue points determined through extensive simulations and verified with a trial mould.

Success:
Hofmann’s specialists built a 3-component serial-production tool for the designer panel of the Thermomix® TM5 which not only offers outstanding quality, but also enables high production quantities at the same time. The knowledge and experience of Hofmann – Ihr Impulsgeber also made it possible to achieve even shorter cycle times than originally planned. A total of 10 serial-production moulds for designer panels were provided by Hofmann for the Thermomix® TM5.