15 x 10 x 5mm NdFeB Rectangular Magnet N40M Ni, Rare Earth Super Strong Sintered NdFeB Block Magnet for Motor Sensor Rotor Toy, Nickel Coating Licensed Neodymium Permanent Magnets China Supplier 15 x 10 x 5mm NdFeB Rectangular Magnet N40M Ni Technical Specifications: Item: NBN40M-15-10-5 Grade: N40M Material: Neodymium (NdFeB) Plating: Nickel Shape: Block, Rectangular, Rectangle, […]
Neodymium Rare Earth Magnetic Cube N40 8mm, Amazing Cube Permanent Magnets, Rare Earth Extremely Elegant Cubical NdFeB Magnet, Magic Toy Puzzle Magnet Block Cubes, Whiteboard Fridge Magnets China Factory
8 mm x 8 mm x 8 mm Neodymium Rare Earth Magnetic Cube N40 Technical Specifications:
Material: Neodymium (NdFeB)
Shape: Cube, Cubical, Cubio
Length (L): 8 mm
Height (H): 8 mm
Width (W): 8 mm
Tolerance: ±0.05 mm
Magnetisation Direction: Axial / Radial
Residual Magnetic Flux Density (Br): 1250-1280 mT (12.5-12.8 kGs)
Energy Density (BH)max: 302-326 KJ/m³ (38-41 MGOe)
Coercivity Force (Hcb): ≥ 907 kA/m ( ≥ 11.4 kOe)
Intrinsic Coercivity Force (Hcj): ≥ 955 kA/m ( ≥ 12 kOe)
Maximum Operation Temperature: 80 °C
Delivery Time: 14-35 days
This neodymium cube (8 mm) has enough strength to safely fix your documents even at magnetic glass walls! Neodymium magnets are made of neodymium, iron and boron and are the strongest raw magnets.
Neodymium cube magnets are great magnets for pin boards or other magnetic surfaces, the fridge for instance. The ideal product is a neodymium cube magnet with a 7 mm edge length. Its adhesive force is sufficient for postcards, notes, photos, etc. At the same time, the neodymium magnet is small, unobtrusive and does not perforate paper. For thicker cardboard or posters or for use on a magnetic glass board, we recommend extra-high adhesive force.
cubical magnet Operating temperature: A low coercivity grade Neodymium magnet may begin to lose strength if heated above 176°F (80°C). High coercivity grade Neodymium Magnets have been developed to function at temperatures up to 428°F (220°C) with little irreversible loss. The need for low temperature coefficient in neodymium magnet applications has triggered several grades to be developed to meet specific operating requirements. Please refer to our chart of magnetic properties to compare the characteristics of each grade.
Corrosion: Neodymium magnets are vulnerable to corrosion, especially along grain boundaries of a sintered magnet. This type of corrosion can cause serious deterioration, including crumbling of a magnet into a powder of small magnetic particles. This vulnerability is addressed by adding a protective coating to prevent exposure to the atmosphere. Nickel plating or two-layered copper-nickel plating are the standard methods, although plating with other metals or polymer and lacquer protective coatings are also available.