Sdm Directed High Performance Compression Bonded Magnets

• Application: Motor Magnet, Generator
• Shape: Ring
• Coating: Epoxy
• Certification: ISO9001:2008, ISO/Ts16949:2009, RoHS
• Type: Permanent Magnets
• Composite: Rare Earth Magnets
• Model NO.: SDMBM
• Transport Package: Sea Pallet / Air Carton / Express Packaging
• Specification: RoHS
• Trademark: SDM
• Origin: China (Mainland)
• HS Code: 8505111000
• Production Capacity: 200000 Piece/Pieces Per Month

Product Description

Compression Bonded Magnets, Plastic Bonded Magnets, Compression Bonded NdFeB Magnets, Compression Bonding Magnets Made in China Supplier

Compression Bonded Magnets, Plastic Bonded Magnets, Compression Bonded NdFeB Magnets, Compression Bonding Magnets Made in China Supplier

Compression bonded magnets (Plastic bonded magnets) are available using many isotropic neodymium iron boron material grades as well as crushed & powdered samarium cobalt materials. Combinations of different material grades could also be used to bring about specific magnetic characteristics. Compression bonded magnets offers higher magnetic strength than injection molded magnets due to their higher magnetic particle density, but are limited to simpler geometries.

 

Compression bonding is most appropriate for relatively simple geometries due to limitations of the compaction process. The tooling costs for compression bonding is comparatively low, which makes it superior to injection molding where volumes are small. However, with modest automation, compression bonding can also be adopted for large-scale manufacturing, with volumes upto millions of pieces per year.

Compression Bonded Neodymium

+ High Magnetic Strength               + Good Chemical Resistance

+ Tight Tolerances Possible            - Susceptible to Surface Oxidation

+ Good Mechanical Strength          - Lower Temperature Resistance

+ Lower Tooling Costs

 

Neodymium magnets can be manufactured in several ways, and one of the most innovative is the procedure of compression bonding.

 

Compression bonding can be a die-pressing process that involves mixing neodymium powder which includes an epoxy binder and pressing high-density parts that are then oven-cured.

 

Compression bonding results in magnets that exhibit higher energy products (more than 10 MGOe) than those made by injection molding; however they are restricted by more basic shapes due to the nature of the die-pressing process.

 

Compression Bonded Magnets are perfect for applications requiring tight tolerances most amazing magnetic strength. These are isotropic - so they may be magnetized in any direction - and the epoxy binder allows bonded magnets to be resistant to most industrial automotive fluids and solvents. Compression bonded magnets exhibit good mechanical strength. Tooling costs are generally lower than they're for injection molded parts. Bonded magnets have an operating temperature range from -40˚C to 165˚C.

 

By blending different grades of neodymium material, it will be possible to create magnets with very specific and different magnetic characteristics.

 

Because of the level of surface porosity, compression bonded neodymium magnets should be coated to prevent them from oxidizing. SDM Magnetech provides a variety of coating and plating options, and our engineering department will be happy to recommend one for your own personal specific application.