We have repeatedly addressed the topic regarding lead in alloys and pointed out that it is one of the biggest challenges in the world of machining today.
Globally, many countries are committed to a common goal: to minimize the presence of lead in alloys. This commitment is reflected in international standards, which, while varying among different continents and countries, converge on the urgent need for action. In particular, the latest edition of the ‘Drinking Water Directive’ aims to reduce the concentration of lead in drinking water from 10 μg/l to 5 μg/l by 2036, with implementation planned as early as 2025/2026. Among the various alloys examined for this purpose, only CW727R was recognized as suitable.
This scenario poses the need to adapt the transfer machines used in the processing of these materials. The Roadmap, a set of regulations to be followed, suggests changes that could lead to a 70% reduction in the presence of lead, but introduces the issue of processing alloys with long chips that can compromise plant efficiency.
Faced with this situation, Picchi has responded with innovation, demonstrating how it is possible to adapt to increasingly stringent environmental regulations by developing solutions that not only meet legal limits but also improve performance.
Specifically, Picchi has developed an advanced technology and a new processing method supported by the use of "Long Life" hydrostatic units. This approach has enabled transfer machines to process previously difficult-to-process materials, such as CW511L lead-free brass, facilitating the production of large volumes with reduced cycle times. The effectiveness of this technology can be demonstrated through tests comparing run times and energy consumption, with and without the implementation of Picchi's proposed solution.
For more details, we quote the article opposite, published in the Giornale di Brescia.
In addition, you can refer to the following articles published on the blog for further details on the subject of lead in alloys:
