Countersunk Rare Earth Magnets - Neodymium Cup Magnets with 90° Mounting Hole. Countersunk Magnets, also known as Round Base, Round Cup, Cup or RB magnets, are powerful mounting magnets, built with neodymium magnets in a steel cup with a 90° countersunk hole on the working surface to accommodate a standard flat-head screw.
Neodymium Magnet offers the strongest magnetic power today. They are particularly suitable for high volume production in a wide variety of shapes and sizes. Precise dimensional control is achieved in machining processes.
(Other shapes and types are all available, Please Contact us for more information~)
Top-quality magnet countersunk rare earth magnets Inspection
1. Check the raw material appearance and do the ICP test
2. Check the ingredients, thickness, appearance, color, metallographic structure of strip cast.
3. Test the hydrogen and oxygen contents.
4. Test the power granularity and distribution.
5. Check the magnet appearance and size after pressing.
6. Check the magnet appearance and density.
7. Check the magnet size, performance, curves, oxygen content, metallography etc after sintering
8. Check the magnet appearance and size after machining.
9. Measure coating thickness, check adhesion and corrosion resistance.
10. Check the appearance, size, performance.
11. Check the packing: the final product placement packing status.
12. Final inspection before shipment.
Application of the countersunk magnet:
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