
What Are You Looking For?
This conventional 20mm long rectangular neodymium magnet is very suitable for various magnetic experiments or any other projects that require neodymium magnets.
Size :
20x10x5mmColor :
SilveryOrder(MOQ) :
100pcsSample :
FreeDensity :
7.5g/cm³Lead Time :
3-15daysPayment :
Paypal/TT/Credit CardSuper Rectangular Permanent N45 Magnetic Bar Magnet
Product Description
Length: 0.79 inches (20 millimeters)
Width: 0.39 inches (10 millimeters)
Thickness: 0.19 inches (5 millimeters)
Material: NdFeB magnet
Magnetic Grade: N45
Tolerance: ±0.05mm
Plating/Coating: Ni Cu Ni (Nickel)
Magnetization direction: Axial (Flat end magnetic pole)
Warning:
These magnets are extremely powerful and must be handled with care to avoid pinching injuries or breakage. Keep them away from children and electronic devices.
Product Features Introduction
Material and magnetic source:
Neodymium magnet (NdFeB) is a rare earth permanent magnet material composed of neodymium, iron, and boron, which has extremely high magnetic properties and is currently the strongest permanent magnet in terms of magnetism. Its magnetic grade is usually represented by "N" plus a number (such as N35, N52), the larger the number, and the stronger the magnetism.
Neodymium | Br | Hcb | Hcj | (Bh)max | Tw | ||||
Grade | mT | kGs | kA/m | kOe | kA/m | kOe | kJ/m3 | MGOe | ℃ |
N35 | 1170-1220 | 11.7-12.2 | >868 | >10.9 | >955 | >12 | 263-287 | 33-36 | <80 |
N38 | 1220-1250 | 12.2-12.5 | >899 | >11.3 | >955 | >12 | 287-310 | 38-39 | <80 |
N40 | 1250-1280 | 12.5-12.8 | >907 | >11.4 | >955 | >12 | 302-326 | 38-41 | <80 |
N42 | 1280-1320 | 12.8-13.2 | >915 | >11.5 | >955 | >12 | 318-342 | 40-43 | <80 |
N45 | 1330-1370 | 13.3-13.7 | >915 | >11.5 | >955 | >12 | 342-367 | 41-44 | <80 |
N48 | 1380-1420 | 13.8-14.2 | >923 | >11.6 | >955 | >12 | 366-390 | 46-49 | <80 |
N50 | 1400-1450 | 14.0-14.5 | >796 | >10 | >876 | >11 | 382-406 | 48-49 | <80 |
N52 | 1430-1480 | 14.3-14.8 | >796 | >10 | >876 | >11 | 398-422 | 50-53 | <80 |
Magnet coating:
The nickel plating magnets consists of three thin and uniform layers of Ni+Cu+Ni protective coating, designed to prevent oxidation and corrosion. It enhances the durability of the magnet while providing a smooth and aesthetically pleasing surface.
How to separate magnets:
When you need to use these block strong magnetic magnets, exercise caution by sliding them apart to separate them, keep them away from children, electronic devices, and items that are susceptible to magnetic fields, and ensure safe operation.
Usage:
The magnet will not leave any marks or stains when removed from a metal surface. Bar magnets are suitable for various applications, including refrigerator magnets, push pins, whiteboard magnets, photo displays, tool storage, and scientific experiments.
Company Introduction
Hefei Super Electronics Co., Ltd was founded in 2002 and is located in Hefei, Anhui Province. It is a company specializing in the production of various magnetic products and materials. We have 20 years of experience in the field of magnetic materials and have hundreds of staff responsible for different processes. We respond promptly and provide attentive service, enjoying a good reputation in this field.
Our company fully supports customization to meet your specific needs. Including magnet size, grade, coating and magnetization direction, and providing various other magnetic products, etc
Packing&Shipping