{"id":8299,"date":"2026-05-09T16:41:42","date_gmt":"2026-05-09T08:41:42","guid":{"rendered":"https:\/\/www.endlesswiresaw.com\/?p=8299"},"modified":"2026-05-09T16:49:58","modified_gmt":"2026-05-09T08:49:58","slug":"recycled-ndfeb-cutting-case-study","status":"publish","type":"post","link":"https:\/\/www.endlesswiresaw.com\/fr\/recycled-ndfeb-cutting-case-study\/","title":{"rendered":"D\u00e9coupe de NdFeB recycl\u00e9 : \u00e9tude de cas d'un recycleur de magnets italien"},"content":{"rendered":"\n

A few weeks ago, an Italian rare-earth recycling company shipped us a single trapezoidal NdFeB blank \u2014 top edge 24 mm, bottom edge 38 mm, height 48 mm, thickness 3 mm \u2014 and asked whether we could cut three different test specimens out of it. The blank wasn’t from a freshly produced magnet. It came from end-of-life motor scrap that the customer had reclaimed and re-sintered into a recycled NdFeB block. Recycled NdFeB cutting is exactly the kind of small-batch sample prep our SGR 20 was built for, so we agreed to do the cut for free and report back with parameters, results, and a few opinions.<\/p>\n\n\n\n

This article walks through the brief, the cutting setup, and what fell out the other side. If you’re working with reclaimed magnet material \u2014 or you’re a magnet OEM evaluating recycled feedstock \u2014 the same workflow applies.<\/p>\n\n\n\n

\"trapezoidal
\u00a0<\/strong>Customer’s original trapezoidal NdFeB blank<\/em><\/figcaption><\/figure>\n\n\n\n

Who the Customer Is and Why This Test Mattered<\/h2>\n\n\n\n

The customer is one of a new wave of European rare-earth recyclers operating on a circular-economy thesis: dismantle end-of-life motors and electronics, recover NdFeB permanent magnets, purify them through a mechanochemical process, and re-sinter them into industrial-grade magnets for the electric motor and sensor industries. According to [CEPS analysis of the EU recycled magnet supply chain<\/a>]<\/strong>, European NdFeB demand is projected to triple by 2030 \u2014 from 12,000 to 36,000 tonnes per year\u2014 and most of that supply still comes from outside the EU, so any operator who can produce recycled magnet material to spec inside Europe has a clear runway.<\/p>\n\n\n\n

The commercial obstacle is the same for every magnet recycler: motor and sensor customers don’t buy on a story. They buy after they’ve measured the magnetic properties and confirmed the recycled material matches virgin sintered NdFeB. That means every batch needs B-H curve testing, microstructure analysis, and dimensional verification. The cut samples we made were not end-use parts \u2014 they were test specimens for QC validation<\/strong>. This is where sample prep turns from a peripheral step into a recurring production cost.<\/p>\n\n\n\n

The Sample and the Three Target Cuts<\/h2>\n\n\n\n

The trapezoidal shape of the input blank is itself a recycling artifact. Many EV traction motors and industrial servo motors use wedge-shaped rotor magnets, so when you reclaim and re-sinter, you often end up with the original geometry. From the 24 \u00d7 38 \u00d7 48 mm trapezoid, the customer wanted three things:<\/p>\n\n\n\n