UK etching specialist wins major filter contract for premium German appliance manufacturer

The filters will be integrated into subsystems in Germany before final assembly by the original equipment manufacturer (OEM).

The new stainless-steel filters replace previous versions manufactured from plastic. The switch to metal will ensure that these appliances will deliver long-lasting reliability, a key factor in the brand’s reputation for high-end products.

Each filter is made from 100 microns-thick stainless steel and contains hundreds of perforations, all of which must meet precise alignment and geometric accuracy, with annual output expected to reach around half a million units.

Creating intricate features in thin metal sheets is achieved through chemical etching, a process that removes material using a controlled chemical reaction rather than stamping or machining.

Compared with stamping, which requires heavy, expensive press tooling and often longer lead times, etching can produce hundreds of tiny perforations accurately and burr-free. This makes it ideal for high-volume, precision components where both performance and appearance matter.

Achieving this level of precision has been supported by significant investment in automation. Over £6m has been spent on advanced production lines, helping ensure components are consistent while reducing manual handling and the risk of errors.

Local support in Germany, provided by Markus Rettig, sales manager at Precision Micro Germany, also helped maintain close coordination and swift decision-making across the project.

"Unlike many etched components, which are hidden inside systems, these filters will be visible within the appliances, giving consumers a tangible impression of quality and precision," said Rettig. "The first samples were clean, flat and burr-free, the quality really spoke for itself.

"Development involved multiple design revisions, including late-stage adjustments following mechanical testing. The ability to update tooling and deliver new samples in just 48-hours proved critical, allowing the team to respond quickly and keep the project on track."

This latest contract underlines Precision Micro’s reputation as a trusted supplier for global OEMs, combining UK manufacturing expertise with on-the-ground support in Europe.

With growing demand for precision engineered components in consumer and industrial markets, the business can support manufacturers demanding both scale and quality.

For more information on chemical etching, download Precision Micro’s latest whitepaper here. Alternatively, contact the team at +44 (0) 121 380 0100.