Magnet Shape: Ring with Countersunk (Countersink)
Material: Hard Ferrite (Ceramic) and Steel
Coating: Zinc(Zn) / Nickel(Ni)       
Grade(Chinese Stardard):         Y30BH
Magnet ID:              FPC-80-Y30BH-Ni 
Detailed magnetic properties data:
Residual Magnetic Flux Density (Br): 3.8-3.9 KGs (mT):  380-390 mT
Intrinsic Coercivity Force (Hcj):    2.80-2.95 KOe    223-235 KA/m
Coercivity Force (Hcb):              2.90-3.08 KOe    231-245 KA/m
Energy Density (BH)max:              3.4-3.7 MGOe     27.0-30.0 KJ/m³
Operating Temperature:               -40 °C to +250 °C
Magnetisation Direction: Axial / Radially magnetized
Pot Magnet Size:
Pot Total height (H):       12.5 mm
Pot Total diameter (D):     80 mm
Pot Diameter top (d2):      8 mm
Pot Diameter bottom (d3):   13.5 mm
Countersunk depth (h3):     4 mm
Tolerance:         +/-2% mm
Delivery time           7-25 days
Measurements

Strong Ferrite Pot Magnets(magnetic bases) with inner thread holes! Made from the strong Neodymium Iron Boron magnets, punching mild steel housing and plastic spacer that all are assemble to be a set of pot magnets and then they are magnetized to be magnetic before shipment, these pot magnets offer substantially more holding and gripping power than ferrite pot magnets.

This kind of configuration and design will keep the magnetic flux more concentrated and the products more powerful. These pot magnets are perfect for use in tooling and fixturing and holding field. Contact Us Now
Please if the size you need is not listed below and we will produce the products according to your requirement without a problem.