Ningbo Horizon Magnetic Technologies Co., Ltd. Company Logo Ningbo Horizon Magnetic Technologies Co., Ltd.
5 1

Block Neodymium Magnet,Square Block Neodymium Magnet

Contact Now* Send an Inquiry to this supplier.
or
Start Order * Name your price

Browse by Category

Contact us

Ningbo Horizon Magnetic Technologies Co., Ltd.
[China]

Address
128# Buzheng East Road, Haishu District, Ningbo Ningbo Zhejiang
Phone
86-0574-27883742
Contact name
Victor Zhou

Quick Information

  • Place of Origin: China
  • :

Description

Block Neodymium Magnet

square Block Neodymium Magnet

rectangular Block Neodymium Magnet

Neodymium bar magnets Factory

Horizon supply Neodymium magnets in square and rectangular block shaped. Usually we call them magnetic blocks, Neodymium bar magnets or rectangular Neodymium magnets. The block magnets are always used in industrial markets and small blocks may be used as craft magnets .

Neodymium magnets  known as NdFeB, Neodymium-Iron-Boron, Neo, NIB or Rare Earth Neodymium magnets, are the third generation of rare earth permanent magnets. They offer the highest energy product of any material today and are available in a very wide range of shapes, sizes and grades. These qualities have made NdFeB magnets preferable over the commonly used larger and less powerful Ferrite magnets.

Although the Curie temperature for NdFeB materials is 310-370ºC, some irreversible loss of output may be expected at even moderate temperatures. NdFeB magnets also have a moderately high reversible temperature coefficient of Br which reduces total magnetic output as temperature rises. Selection of NdFeB instead of SmCo, for example, is a function of the maximum temperature of the application, required magnetic output at typical use temperature and total cost of the system.

However, they are sensitive to oxidization and can develop corrosion, so they require surface protection like phosphate, passivation, Ni, NiCuNi, Zn, Epoxy, NiCuNi+Sn or others.

Characteristics:

G enuine Neodymium magnet , without La (Lanthanum) or Ce (Cerium) to destroy magnet quality

Outstanding magnetic properties – Br high to 14.5 kGs (1. 45T) and (BH)max high to 52 MGOe (414 kJ/m3)

High demagnetization resistance –maximum Hcj higher than 35 kOe (2785 kA/m)

High working temperature – maximum working temperature high to 230ºC

Wide range of grades with new ones regularly being developed – High magnetic properties, AH grades or Low Weight Loss materials and so on.

rare earth magnet  Size:

Normal Size Range: L (Length): 1~180mm, W (Width): 0.4~100mm, T (Thickness): 0.4~120mm

Maximum Size: Rectangular: L180 x W80 xT60mm, Square: L100 x W100 xT70mm

Minimum Size: L1 x W1 x T0.4mm

Orientation Direction Size: Lower than 80mm

Tolerance: Generally +/-0.1mm, Particularly +/-0.03mm

Machining Method:

Generally the finished block of small dimension is sliced from the big block directly. If the dimension of one or two directions is large, for example >60mm, it should need grinding and EDM cutting, due to the limits of the slicing machine. If all three directions are too large, only grinding is enough. Prior to coating, the small block needs vibration tumbling and the big block needs manual chamfering.

Main Application:

Electric motors, wind turbines, pump couplings, chemical pumps, sensors, magnetic sputtering cathodes, magnetic assemblies, etc.

Main Test Items Prior to Delivery:

In order to ensure NdFeB magnets  to meet requirements, we main test following items: size, weight loss, magnetic properties, flux, flux density, angle deviation, magnetic loss, appearance, coating thickness, corrosion resistance, etc.


Packaging & Delivery

  • Packing :CorrugatedboxPolywoodpalletPolywoodcase
  • Delivery Lead Time : 10-20 days after receipt of payment
  • Supply Ability : 500 tons of Neodymium magnet per year

Product Image

  • Block Neodymium Magnet,Square Block Neodymium Magnet image

Send an Inquiry to this supplier

Send an Inquiry to this supplier
* From
  To Victor Zhou
Ningbo Horizon Magnetic Technologies Co., Ltd.
* Buying Product
- Please enter your specific buying item.
e.g. 42 inch LCD TV, leather executive chair
Category : Magnetic Materials
* Message

Use English only Max. 2000 characters. (Min. 20)

Send
EC21.com does not guarantee the validity of product information or the credentials of sellers.