Block Permanent NdFeB Magnet with SGS CertificateQuality Control and Sampling Plan:
Sampling plan for magnetic properties or dimensional attributes is performed according to the customer's specific requests. Otherwise we use MIL Standard 105D Sampling plan for normal inspection.
Magnetization and Magnetic Test Equipment:
Test Equipment:
* The magnetic properties of test samples are determined using a modern BH tracer potting a full loop demagnetization curve.
* High accuracy calibrated Gaussmeters, Fluxmeters, and some other necessary measuring tools are used for appropriated parts.
Physical and Magnetic Tolerance:
In the absence of clear instruction on magnetic and physical tolerances, we use Magnetic Material Producers Association (MMPA) Standard Specification for Permanent Magnet Material as a guideline.
NdFeB Magnet Processing
Required Information for Quotation:
1. Intend application and Material.
2. Shape, size dimensions and tolerance level.
3. Material Characteristic (i. E. Br, bHc, iHc, BHmaxK)
4. Environmental conditions and Inspection sampling plan.
5. Magnetized or unmagnetized.
6. Magnetic Polarity and magnetized direction.
7. Quantity per year and per shipment...
8. Special request method for packing.
Note: We can produce the magnets in accordance with the customers' requirements, please send us drawing or samples!
|
Property Grade |
Remanence Br(KG) min .nom. |
Coercive Force bHc(Koe) min. nom. |
Instrinsic Coercive Force
iHc(Koe) |
Max.Energy product
BHmax.(GOe) |
Working Temperature(C) |
|
N28EH |
10.4~10.8 |
≥9.5 |
≥ 30 |
26~29 |
200 |
|
N30H |
10.9~11.4 |
10.1~10.9 |
≥ 17 |
28~31 |
120 |
|
N30SH |
10.9~11.4 |
10.1~10.9 |
≥ 20 |
28~31 |
150 |
|
N30UH |
10.9~11.4 |
10.1~10.9 |
≥ 24 |
28~31 |
180 |
|
N30EH |
10.8~11.3 |
≥9.5 |
≥ 30 |
28~31 |
200 |
|
N30AH |
10.8~11.3 |
≥10.2 |
≥ 35 |
28~32 |
220 |
|
N-33 |
11.3~11.7 |
10.7~11.5 |
≥ 12 |
31~34 |
80 |
|
N33H |
11.3~11.7 |
10.7~11.5 |
≥ 17 |
31~34 |
120 |
|
N33SH |
11.3~11.7 |
10.7~11.5 |
≥ 20 |
31~34 |
150 |
|
N33UH |
11.3~11.7 |
≥10.7 |
≥ 25 |
31~33 |
180 |
|
N33EH |
11.3~11.7 |
≥10.2 |
≥ 30 |
31~33 |
200 |
|
N33AH |
11.2~11.7 |
≥10.2 |
≥ 35 |
31~34 |
220 |
|
N-35 |
11.7~12.1 |
10.9~11.8 |
≥ 12 |
33~36 |
80 |
|
N35EH |
11.7~12.1 |
10.2 |
≥ 30 |
33~36 |
200 |
|
N35SH |
11.7~12.1 |
11.0~11.8 |
≥ 20 |
33~36 |
150 |
|
N35UH |
11.7~12.1 |
≥ 10.7 |
≥ 25 |
33~36 |
180 |
|
N-38 |
12.1~12.5 |
≥ 11.3 |
≥ 12 |
36~39 |
80 |
|
N38H |
12.1~12.5 |
≥ 11.3 |
≥ 17 |
36~39 |
120 |
|
N38SH |
12.1~12.5 |
≥ 11.3 |
≥ 20 |
36~39 |
150 |
|
N38UH |
12.1~12.5 |
≥ 11.4 |
≥ 25 |
36~39 |
180 |
|
N-40 |
12.5~12.8 |
≥ 11.6 |
≥ 12 |
38~41 |
80 |
|
N40H |
12.4~12.8 |
≥ 11.6 |
≥ 17 |
38~41 |
120 |
|
N-42 |
12.8~13.2 |
≥ 11.6 |
≥ 12 |
40~43 |
80 |
|
N-42H |
12.8~13.2 |
≥ 11.6 |
≥17 |
40~43 |
120 |
|
N-45 |
13.2~13.8 |
≥ 11.0 |
≥ 12 |
43~46 |
80 |
|
N-45H |
13.2~13.5 |
≥ 12.0 |
≥ 17 |
42~46 |
120 |
|
N-45SH |
13.2~13.8 |
≥ 12.6 |
≥ 20 |
43~46 |
150 |
|
N-45M |
13.2~13.8 |
≥ 11.0 |
≥ 14 |
43~46 |
100 |
|
N-48 |
13.8~14.2 |
≥ 10.5 |
≥ 11 |
46~49 |
80 |
|
N-48M |
13.6~14.1 |
≥12.0 |
≥ 14 |
44~49 |
100 |
|
N-48H |
13.6~14.3 |
≥12.5 |
≥ 16 |
46~49 |
120 |
|
N-50 |
13.8~14.5 |
≥ 10.5 |
≥ 12 |
47~51 |
80 |
|
N-50M |
14.0~14.5 |
≥ 13.0 |
≥ 14 |
48~51 |
100 |
|
N-52 |
14.3~14.8 |
≥ 10.8 |
≥ 11 |
50~53 |
80 |
Shenzhen Goodhelper Industrial Co., Ltd. Was established in 2000, with import and export rights, is engaged in the production, processing of magnetic material and magnetic devices, sales of professional firms.
Company under the facility is located in China's largest magnet materials production base ---- Ningbo. We have the most advanced production, processing, testing equipment and technology, a full range of convenient magnetic materials processing support services, to provide a guarantee for the production and processing of a variety of difficult magnetic components. Our main products neodymium magnetic rings, discs, box, tile, shaped; Magnetic components including magnetic chuck, magnetic badges, magnetic lifter, magnetic rotor, magnetic hooks and clips. These products are widely used in various fields of electronics, instrumentation, micro-motor, motor, communication equipment, audio equipment, medical treatment, magnetic therapy jewelry, chemical industry and daily life.
We have been always adhere to strict management, continuous innovation, continuous improvement, customer satisfaction the company aims to seek common development with customers at home and abroad with good quality, competitive price and fast delivery speed, create future!
