Magnet Shape: Ring with Cylindrical Borehole (Hole)
Material: Sintered Hard Ferrite (Ceramic) and Steel
Coating: Zinc (Zn)        
Grade(Chinese Stardard):         Y30BH
Magnet ID:              FPCB-32-Y30BH-Zn   
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 Diameter (D):  32 mm
Pot Height (H):    8 mm
Borehole  (d1):    5.5 mm
Borehole  (d2):    9 mm
Depth      (t):    5.5 mm
Tolerance:         +/-2% mm
Delivery time           7-25 days
Measurements

Strong ferrite Pot Magnet is the third generation of rare-earth permanent magnet, is the most powerful and advanced commercialized permanent magnet today. ferrite has high coercive force, high energy and high performance/ cost ratio. It can be formed into various sizes and widely used in many fields such as aviation, electronics, instruments, meters, machines and medical instrument.
We are the magnet manufacturers in ningbo, China. We have advanced automatic production equipments and testing instruments. We are gathering a group of experienced professional and technical personnel engaged in manufacturing magnetic materials and magnetic products. The Pot Magnet with Countersunk have a countersunk hole in the front (magnetic) face and can be easily fixed in place with a countersunk screw (M4, M5 and D8). They are ideal for using in fixing applications such as Point of Sale Displays, Exhibitions, Marketing Displays, Doors, Panels, False Ceilings and Light Fixtures and Fittings.
The Pot Magnet has a maximum operating temperature of +180 deg C with ferrite, +550 deg C with Alnico and +200 deg C with NdFeB, 350 deg C with SmCo Magnet.
Applications:
• Sale Displays, Exhibitions, Marketing Displays, Doors, Panels, False Ceilings and Light Fixtures and Fittings.