Ring/Tube Neodymium Magnets

As one of the professional ring magnet suppliers,we provide high quality neodymium ring magnets for sale.

Ring/Tube Neodymium Magnets

Material Sintered Neodymium Iron Boron

Dimensions Outer Diameter Min.3.0 mm—Max.200 mm

Inner Diameter Min.1.5 mm—Max.150 mm

Height Min.0.5 mm—Max.50 mm

Tolerance Standard +/-0.05mm, Min.+/-0.01mm

Magnetization Orientation Axial, Diametrical, Radial

Magnetic Properties Grade Max. Operating Temperatures

N35-N52 80°C (176°F)

33M- 48M 100°C (212°F)

33H-48H 120°C (248°F)

30SH-45SH 150°C (302°F)

30UH-40UH 180°C (356°F)

28EH-38EH 200°C (392°F)

28AH-35AH 230°C (428°F)

Remanence(Br) 11,300 Gauss — 14,800 Gauss

Coercive Force(Hcb) 10,000 Oersted — 12,600 Oersted

Intrinsic Coercive Force(Hcb) 11,000 Oersted — 36,000 Oersted

Magnetic Energy Product (BH) 33M GOe — 53M GOe

Surface Treatment Ni-Cu-Ni, Nickel, Zn, Gold, Silver, Copper, Epoxy, Chemical, PTFE, Parylene, Everlube, Passivation and more.