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Round Countersink Magnet Permanent Sintered Countersunk Magnet

Name: Round Countersink Magnet Permanent Sintered Countersunk Magnet
Brand: Nanjing Huajin Magnet Co., Ltd.
SKU: JKlEHyVDHAWo
Price: 0.05 USD
Availability: InStock

US$0.20

100-4,999 Pieces

US$0.10

5,000-9,999 Pieces

US$0.05

10,000+ Pieces

Port:

Shanghai, China

Production Capacity:

10000000PCS/Month

Payment Terms:

L/C, T/T, Western Union, Money Gram

Contact Now

Nanjing Huajin Magnet Co., Ltd.

Jiangsu, China

Rating: 5.0/5

Last Login Date:

Jul 18, 2025

Business Type:

Manufacturer/Factory, Trading Company

Main Products:

Neodymium Magnet, NdFeB Magnet, Rare Earth Magnet, Permanent Magnet, PVC Magnetic Button, Magnet Rod/Bar, Block Magnet, Ring Magnet, Disc Magnet, Magnet Filter

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Product Description

Company Info

Basic Info.

Model NO.

HJ242

Application

Industrial Magnet

Shape

Block

Coating

Zinc/Nickel

Grade

N35-N52, 38m-48m, 35h-48h, 33sh-44sh, 30uh-35uh

Sample

Avaiable

Material

Neodymium-Iron-Boron

Density

7.50-7.65g/cm3

Delivery Detail

5-8 Days(According to Quantity)

Type

Permanent

Composition

NdFeB Magnet

Tolerance

+/-0.05mm

Lead Time

7-8 Days

Trademark

HUAJIN

Transport Package

by Carton or Wooden Box

Specification

RoHS SGS MSDS

Origin

Nanjing City, China

HS Code

85051110

Product Description

Round Countersink Magnet Permanent Sintered Countersunk Magnet

Item	Disc Round Countersunk Magnet
Composition	Neodymium Magnet
Application	Voice-coil Motor(VCM), MRI, Generator, Car, Speaker, Computer
Working Temp.	80ºC~200ºC
Coating	Zinc, Color Zinc, Nickel etc
Grade	N35-N52, 38M-48M, 35H-48H, 33SH-44SH, 30UH-35UH
Dimension	Customized size
Magnet Direction	Through thickness(Axially)+Radially
Type	Strong&Permanent
Performance	Permanent, Strong, Rust-proof, Anti-corrosion
Trade Term	EXW, FOB, CIF, C&F ect.
Payment Term	TT, PayPal, Western Union ect.

Nanjing Huajin Magnetic Materials Co., Ltd. Specializing in the production and sale of
magnetic NdFeB, magnetic bar, magnetic products, magnetic frame. Magnets of various
shapes and sizes can be produced according to customer requirements, such as pack
diskette, the motor magnetic tile, magnetic ring, toy bar magnet, magnetic ball, with the
exception of iron magnetic rods, magnetic hooks, magnetic separator box; Surface treat:
Gold, silver, plated epoxy, nickel-plated copper-nickel, zinc, chromium, titanium (blue zinc,
black zinc, color zinc), above the surface treatment to meet environmental requirements.

Grade	Remanence		Coercivity Force		Intrinsic Coercive Force		Max. Energy Product		Working Temp.
	Br		Hcb		Hcj		(BH)max
	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 ° C
N38	1220-1250	12.2-12.5	≥ 899	≥ 11.3	≥ 955	≥ 12	287-310	36-39	80 ° C
N40	1250-1280	12.5-12.8	≥ 907	≥ 11.4	≥ 955	≥ 12	302-326	38-41	80 ° C
N42	1280-1320	12.8-13.2	≥ 915	≥ 11.5	≥ 955	≥ 12	318-342	40-43	80 ° C
N45	1320-1380	13.2-13.8	≥ 923	≥ 11.6	≥ 955	≥ 12	342-366	43-46	80 ° C
N48	1380-1420	13.8-14.2	≥ 923	≥ 11.6	≥ 876	≥ 12	366-390	46-49	80 ° C
N50	1400-1450	14.0-14.5	≥ 796	≥ 10.0	≥ 876	≥ 11	382-406	48-51	60 ° C
N52	1430-1480	14.3-14.8	≥ 796	≥ 10.0	≥ 876	≥ 11	398-422	50-53	60 ° C
35M	1170-1220	11.7-12.2	≥ 868	≥ 10.9	≥ 1114	≥ 14	263-287	33-36	100 ° C
38M	1220-1250	12.2-12.5	≥ 899	≥ 11.3	≥ 1114	≥ 14	287-310	36-39	100 ° C
40M	1250-1280	12.5-12.8	≥ 923	≥ 11.6	≥ 1114	≥ 14	302-326	38-41	100 ° C
42M	1280-1320	12.8-13.2	≥ 955	≥ 12.0	≥ 1114	≥ 14	318-342	40-43	100 ° C
45M	1320-1380	13.2-13.8	≥ 995	≥ 12.5	≥ 1114	≥ 14	342-366	43-46	100 ° C
48M	1360-1430	13.6-14.3	≥ 1027	≥ 12.9	≥ 1114	≥ 14	366-390	46-49	100 ° C
50M	1400-1450	14.0-14.5	≥ 1033	≥ 13.0	≥ 1114	≥ 14	382-406	48-51	100 ° C
35H	1170-1220	11.7-12.2	≥ 868	≥ 10.9	≥ 1353	≥ 17	263-287	33-36	120 ° C
38H	1220-1250	12.2-12.5	≥ 899	≥ 11.3	≥ 1353	≥ 17	287-310	36-39	120 ° C
40H	1250-1280	12.5-12.8	≥ 923	≥ 11.6	≥ 1353	≥ 17	302-326	38-41	120 ° C
42H	1280-1320	12.8-13.2	≥ 955	≥ 12.0	≥ 1353	≥ 17	318-342	40-43	120 ° C
45H	1300-1360	13-13.6	≥ 963	≥ 12.1	≥ 1353	≥ 17	326-358	43-46	120 ° C
48H	1370-1430	13.7-14.3	≥ 995	≥ 12.5	≥ 1353	≥ 17	366-390	46-49	120 ° C
33SH	1130-1170	11.3-11.7	≥ 844	≥ 10.6	≥ 1592	≥ 20	247-271	31-34	150 ° C
35SH	1170-1220	11.7-12.2	≥ 876	≥ 11.0	≥ 1592	≥ 20	263-287	33-36	150 ° C
38SH	1220-1250	12.2-12.5	≥ 907	≥ 11.4	≥ 1592	≥ 20	287-310	36-39	150 ° C
40SH	1240-1280	12.5-12.8	≥ 939	≥ 11.8	≥ 1592	≥ 20	302-326	38-41	150 ° C
42SH	1280-1320	12.8-13.2	≥ 987	≥ 12.4	≥ 1592	≥ 20	318-342	40-43	150 ° C
45SH	1320-1380	13.2-13.8	≥ 1003	≥ 12.6	≥ 1592	≥ 20	342-366	43-46	150 ° C
30UH	1080-1130	10.8-11.3	≥ 812	≥ 10.2	≥ 1990	≥ 25	223-247	28-31	180 ° C
33UH	1130-1170	11.3-11.7	≥ 852	≥ 10.7	≥ 1990	≥ 25	247-271	31-34	180 ° C
35UH	1180-1220	11.8-12.2	≥ 860	≥ 10.8	≥ 1990	≥ 25	263-287	33-36	180 ° C
38UH	1220-1250	12.2-12.5	≥ 876	≥ 11.0	≥ 1990	≥ 25	287-310	36-39	180 ° C
40UH	1240-1280	12.5-12.8	≥ 899	≥ 11.3	≥ 1990	≥ 25	302-326	38-41	180 ° C

What information do I need to supply when I have a inquiry?
If you have any inquiry, please kindly advise the following items:
a. Dimensions or drawing with tolerances.
b. Material grade or magnetic properties.
c. Magnetic direction. c. Magnetic direction.
d. Surface coating (If necessary).
e. Quantity and delivery terms.

Customized Services:
1. Customized Material Neodymium Grade: N35-N52, N35M-N50M, N35H-N48H, N33SH
-N45SH, N30UH-N35UH, N30EH-N35EH;
2. Customized Shaped magnet: Round / block / ring / cylinder / countersunk / arc / segment
other irregular shapes.
3. Custom packaging. Usually we packed the magnet with vacuum polybag. Then packed in
stop magnetic metal box. We can also make the package as your requirements.
4. Customized Mark: to distinguish N pole and S pole.
5. Custom coating. We can coated in Nickel. Zinc, Chromium as your requirements.
6. Customized Working temperature: <80ºC;80ºC-200ºC.

Payment Term:
T/T, L/C, Western Union, PayPal.

Package & Shipment:
Package: Magnetic Isolation Package
Carton: 36*27*15CM

1. By Express(DHL, FedEx, TNT, UPS ect): Door to door, Short Delivery time, 3-5 days.
2. By Air: Short Delivery Time, 3-7 days.
3. By Sea: Cheap Shipping Cost, 7-30 days.

FAQ:
1. How to get prompt quotation?
Kindly offer us the specific size, quantity, coating(zinc/nickel), magnetism direction ect
other requiries. Then best price will be offered ASAP.

2.What about the lead time?
(1) Sample: 5-7 days.
(2) Batch quantity: 7-12 days.

3.What's the MOQ?
(1) Spot Stocks: No MOQ;
(2) Regular Size: 500 PCS, 1000 PCS, 2000 PCS, 5000 PCS ect.
(3) Other Size: 2000 PCS, 5000 PCS, 10000 PCS ect.

4. Terms of Paymemt:
(1). T/T in advance(telegraphic transfer-bank order)
(2). Western Union cash - for small order or samples order.
(3). PayPal- for small order, quick receipt

Please feel free to contact me for any questions and requiries.

Address: 3f, Bldg. 2, Honghui Industrial Pk, No 780, Yingtian St., Jianye Dist., Nanjing, Jiangsu, China

Business Type: Manufacturer/Factory, Trading Company

Business Range: Agriculture & Food, Apparel & Accessories, Bags, Cases & Boxes, Construction & Decoration, Consumer Electronics, Electrical & Electronics, Manufacturing & Processing Machinery, Metallurgy, Mineral & Energy, Packaging & Printing, Toys

Management System Certification: ISO 9001

Main Products: Neodymium Magnet, NdFeB Magnet, Rare Earth Magnet, Permanent Magnet, PVC Magnetic Button, Magnet Rod/Bar, Block Magnet, Ring Magnet, Disc Magnet, Magnet Filter

Company Introduction: Nanjing Huajin Magnet Co., Ltd. is a professional manufacturer specializing in the R & D and manufacture of the permanent magnet. We invest in high quality magnet production line with the vacuum sintering stove which helps to improve the uniformity of magnetic properties and corrosion resistance of sintered ND-Fe-B magnets. Our production line also contains centerless grinding machines, ultrasonic punch and linear cutting machine all of which make us capable of machining very special shapes of magnet, and providing high precision applied in aircraft and automobile industry. Our magnets have passed the SGS RoHS and MSDS test. Our magnets are widely used in toys, packing, speaker, motor, meter and medical care. With the advantage of senior magnetic assembly engineers, experienced staff and comprehensive machining equipment, we can produce high quality magnetic filter, magnetic clamp, magnetic chuck, magnetic attractor and other magnetic products catering to our customers′ different requirements.

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