Magnet Shape: Ring with Cylindrical Borehole (Hole)
Material: Sintered Hard Ferrite (Ceramic) and Steel
Coating: Nickel (Ni)       
Grade(Chinese Stardard):         Y32
Magnet ID:          FPCB-80-Y32-Ni  
Detailed magnetic properties data:
Residual Magnetic Flux Density (Br): 4.0-4.2 KGs (mT):  400-420 mT
Intrinsic Coercivity Force (Hcj):    2.01-2.37 KOe    160-190 KA/m
Coercivity Force (Hcb):              2.07-2.45 KOe    165-195 KA/m
Energy Density (BH)max:              3.4-4.0 MGOe     30.0-33.5 KJ/m³
Operating Temperature:               -40 °C to +250 °C
Magnetisation Direction: Axial / Radially magnetized
Pot Magnet Size:
Pot Diameter (D):  80 mm
Pot Height (H):    15 mm
Borehole  (d1):   10 mm
Borehole  (d2):    15 mm
Depth      (t):    8 mm
Tolerance:         +/-2% mm
Delivery time           7-25 days
Measurements

Pot magnets with cylindrical borehole
Distinctive feature: These pot magnets can be fastened with a screw without countersink. We also carry pot magnets for counter-sunk screws.
Principle: The strong neodymium magnets are embedded in a steel pot. The steel pot increases the adhesive force of the magnet on direct contact with a thick iron surface. If there is no direct contact with the counterpart, or if the steel plate is thin, painted or rough, you can strain it much less.

Item: Pot Magnet/ Magnet Pot / Permanent Pot Magnet/ ferrite Pot Magnet
Place of Origin: Zhejiang China (Mainland) Type: Permanent
Composite: Magnet+metal Shape: According to clients' requirements
Material: ferrite magnet Size: Customized
Packaging:
1. Standard Air or Sea Way package
2. Customized package is available
Pot magnets are made from different kinds permanent magnets and metal pot. Special magnetic circuit make it have super strong magnetic force, many times stronger than the single strong magnet.