Alnico magnets are made of aluminum, nickel, cobalt, copper, iron and other materials. We can manufacture cast and sintered alnico permanent magnets in a variety shapes including horseshoe, U shape, bar, block, disc, ring, rod and other customized shapes, grades like FLN8-FLNGT42, LN9-LNGT72, or alnico2-alnico9,magnetized through thickness or diameter. Customers usually order uncoated alnico, several customers requested NiCuNi plating, yes, we can do it, but as it has weak adhesion to plating, NiCuNi plating might flake off if not handled properly.
Cast Alnico Magnets
Cast alnico magnets are made by pouring melted AlNiCo material into a mold, and then heat and cool the solidified blank. Cast AlNiCo are mainly manufactured into shapes of disc, block and ring, and are characterized by low temperature coefficient, high dampness, oxidation and temperature resistance, as well as the stability of magnetic performance..
Sintered Alnico Magnets
Sintered Alnico magnets are produced by powder metallurgy technology, which enables the production of sintered alnico into various complicated, light, thin and tiny shapes....
Raw Materials – Burdening – Melting – Cleaning – Sorting - Grinding – Rough Inspection – Heating Treatment – Magnetic Inspection – Finish Machining – Cleaning Drying – Finishing Test – Finished Goods Inspection – Packing – Final Shipment Inspection – Shipment
Cast alnico & Sintered alnico
According to different production process, alnico magnets can be divided into sintered and cast. Compared with sintered magnets, cast alnico magnets have following advantages.
1. Cast alnico can be processed into different sizes and shape, while sintered alnico magnets are limited to small sizes.
2. Cast alnico magnet is slightly better than sintered alnico magnet in magnetic performance.
3. Cast alnico has the lowest reversible temperature coefficient.
Cast alnico magnets are mainly applied in automotive parts, instruments, electro-acoustic, electrical, teaching equipments, aviation and military areas. Sintered Alnico magnets are widely used in fields of instrumentation, communications, electronic, magnetic switches, sensors and others.
Given the low coercive force of alnico permanent magnet, in order to avoid irreversible demagnetization or disorder of magnetic flux distribution, alnico magnets shall be strictly kept apart from other magnetic materials in actual application or shipping process, especially neodymium magnet material.
1.Q: What information do I need to supply when I have an inquiry?
A: If you have any inquiry, please kindly advise the following items:
Dimensions, sizes, shape and drawing with tolerances.
Material grade or magnetic properties.
Magnetic direction, quantity. Surface coating (if necessary).
2.Q: What about the sample time and charge?
A: (1) 7-10 days if you want to customize your logo, charge according to your design.
(2) 3-7 days for our existing samples for reference.
3.Q: What about the delivery time of our products?
Fast Delivery when you choose the item and decide your design, we can produce it as fast as possible, and deliver it as quick and convenient as possible.
4.Q: Could you provide me the shortest lead time?
A: We have materials in our stock,if you really need, you can tell us and we will try our best to satisfy you.
5.Q: What is your MOQ?
A: 1-10-100-500-1000-5000-10000-200000 pcs etc. depend different size ,item, design and process. MINI and SMALL quantity accept accordingly.