Rare earth permanent magnets — sintered NdFeB magnets above all — are the key material behind EV traction motors, industrial motors, robotics and wind turbines. Saehan Nanotech designs and builds, with its own engineering team, the diamond wire sawing machines that cut these magnets to the exact size and thickness each application requires.
Magnet segments for electric vehicle motors, where high output and compact packaging both matter
Permanent magnets for high-efficiency industrial motors and servo motors
Magnet components for robot joints and actuators that demand precise motion control
Magnet blocks for large direct-drive permanent magnet generators
Multi wire sawing cuts a magnet block into many pieces at once using multiple strands of diamond wire. Because the wire is thin, material loss stays low, and because every strand cuts simultaneously, magnets of uniform thickness come off the machine in a single pass — which is what makes the method well suited to NdFeB magnet mass production.
One pass cuts a magnet block into many pieces at the same time, which raises output per unit of time and improves process efficiency on the production line.
A fine diamond wire keeps the kerf narrow, so less material is lost in each cut and expensive rare earth raw material is used efficiently.
The machine is configured around the behaviour of rare earth magnets, which crack and chip easily, so that uniform thickness and consistent cut quality are maintained.
Machine configuration and dedicated jigs are designed around your magnet size, shape and production method, and automation can be proposed alongside the machine where it is needed.
Max. workpiece 160 × 100 × 750 mm · Cut thickness 1 – 20 mm · Twin work table design
Saehan Nanotech has been developing and supplying precision cutting machines for rare earth permanent magnets, sintered NdFeB among them, since the mid-2000s. Deliveries to major domestic magnet material and component manufacturers have built up know-how across magnets of many different sizes and shapes.
Operating experience and customer feedback from real production lines feed back into machining performance, machine stability and ease of operation. Existing operating practice is preserved, so the machining conditions and know-how you have accumulated carry straight over to the new machine.
Building on our domestic track record, we export rare earth permanent magnet machining equipment to overseas customers. As global supply chains are redrawn, we are a partner capable of stable equipment supply and long-term technical support.
Machine design, assembly, inspection, installation and after-sales technical support are all handled directly by our own engineers. We review your production environment and propose standard machines, dedicated jigs and fully customised equipment alike.
Rare earth sintered magnets such as NdFeB are hard and highly brittle, so cracks and chipping occur easily during cutting. Diamond wire sawing cuts with a fine wire in a grinding-like action, which keeps the machining load low, and the narrow kerf also reduces the loss of expensive rare earth material.
Multi wire sawing cuts a block into many pieces at once with multiple wire strands, which suits mass production. Single wire sawing uses one strand and lets you set the thickness freely, so it is used for prototypes, small-lot production and large blocks. We will review your production volume and product specification with you and recommend the right method.
Saehan Nanotech reviews your magnet sizes, shapes and production method, then custom-designs the machine configuration and dedicated jigs to match. Automation can be proposed alongside the machine where it is needed.
Yes. Saehan Nanotech exports rare earth permanent magnet machining equipment to overseas customers, and installation and after-sales technical support are handled by our own engineering team.
Get in touch about diamond multi wire sawing machines for NdFeB magnet cutting, dedicated jigs and custom-built equipment.
We will review your magnet specification and production method and propose the optimal machine configuration.
Our engineering team responds within 1 business day with a tailored proposal.