Basic Info.
Application
Electronic Products, Speaker Magnet, Industrial Magnet, Jewelry Magnet, Solenoid, Motor Magnet, Assembly
Max Working Temp.
Under 80 Degree C
Tensile Strength
8.0kg/mm2
Material
Neodymium,Iron, Boron
Shipment
Accept Ship by Air
Transport Package
136 PCS Per Box
Specification
20mm Dia x5mm T hole5mm countersunk10
Product Description
Product Description :
D20X5 Black Epoxy Coating N38 Ring Magnet
Magnet dimension | Dia 25x5mm |
Special | hole 5mm with countersunk 10mm |
Tolerance | + / - 0.1mm |
Grade | N38 |
Surface Plating | Black Epoxy Coating |
magnet Direction | through thickness 5mm |
Net weight | 13 g |
Surface field | 3500 Gauss |
Max working Temp. | 80 ºC |
Br Max | 12100 Gauss |
Bh Max | 35 MGOe |
Packing | inner box, cartons |
Shipment | By air or by sea |
MOQ | 1000 pieces |
Lead time | 20 days |
Material Detail
Standard Specification for Sunny Fore Sintered NdFeB Magnets:
Grade | Remanence (Br) | Coercive Force (Hcb) | Intrinsic Coercive Force(Hcj) | Max Energy Product (BH) max | Working temp. |
KGs | T | Koe | KA/m | KOe | KA/m | MGoe | Kj/m3 | ºC |
N35 | 12.2-11.8 | 1.22-1.18 | ≥10.8 | ≥860 | ≥12.0 | ≥960 | 36-33 | 286-260 | ≤80 |
N38 | 12.6-12.2 | 1.26-1.22 | ≥10.8 | ≥860 | ≥12.0 | ≥960 | 38-36 | 303-286 | ≤80 |
N40 | 12.9-12.6 | 1.29-1.26 | ≥10.8 | ≥860 | ≥12.0 | ≥960 | 40-38 | 318-303 | ≤80 |
N42 | 13.2-12.8 | 1.32-1.28 | ≥11.0 | ≥875 | ≥12.0 | ≥960 | 42-40 | 334-318 | ≤80 |
N45 | 13.8-13.3 | 1.38-1.33 | ≥11.0 | ≥875 | ≥12.0 | ≥960 | 45-43 | 358-342 | ≤80 |
N48 | 14.1-13.7 | 1.41-1.37 | ≥10.5 | ≥836 | ≥12.0 | ≥960 | 49-46 | 390-358 | ≤80 |
N50 | 14.3-14.0 | 1.43-1.40 | ≥10.5 | ≥836 | ≥11.0 | ≥960 | 51-47 | 406-374 | ≤80 |
N52 | 14.5-14.2 | 1.45-1.42 | ≥10.5 | ≥836 | ≥11.0 | ≥875 | 53-49 | 422-390 | ≤80 |
N33M | 11.8-11.4 | 1.18-1.14 | ≥10.3 | ≥820 | ≥14.0 | ≥875 | 33-31 | 263-247 | ≤100 |
N35M | 12.2-11.8 | 1.22-11.8 | ≥10.8 | ≥860 | ≥14.0 | ≥1114 | 36-33 | 286-260 | ≤100 |
N38M | 12.6-12.2 | 1.26-12.2 | ≥11.0 | ≥875 | ≥14.0 | ≥1114 | 38-36 | 303-286 | ≤100 |
N40M | 12.9-12.6 | 1.29-1.26 | ≥11.0 | ≥875 | ≥14.0 | ≥1114 | 40-38 | 318-303 | ≤100 |
N42M | 13.2-12.8 | 1.32-1.28 | ≥11.5 | ≥910 | ≥14.0 | ≥1114 | 42-40 | 334-318 | ≤100 |
N45M | 13.8-13.3 | 1.38-1.33 | ≥11.8 | ≥938 | ≥14.0 | ≥1114 | 45-43 | 358-334 | ≤100 |
N48M | 14.1-13.7 | 1.41-1.37 | ≥11.8 | ≥938 | ≥14.0 | ≥1114 | 49-46 | 390-358 | ≤100 |
N50M | 14.3-14.0 | 1.43-1.40 | ≥11.8 | ≥938 | ≥13.5 | ≥1075 | 51-47 | 406-374 | ≤100 |
N30H | 11.4-10.8 | 1.14-1.08 | ≥9.8 | ≥780 | ≥17.0 | ≥1356 | 30-28 | 239-223 | ≤120 |
N33H | 11.8-11.4 | 1.18-1.14 | ≥10.3 | ≥820 | ≥17.0 | ≥1356 | 33-31 | 263-247 | ≤120 |
N35H | 12.2-11.8 | 1.22-1.18 | ≥10.8 | ≥860 | ≥17.0 | ≥1356 | 36-33 | 286-260 | ≤120 |
N38H | 12.6-12.2 | 1.26-1.22 | ≥11.0 | ≥875 | ≥17.0 | ≥1356 | 38-36 | 303-286 | ≤120 |
N40H | 12.9-12.6 | 1.29-1.26 | ≥11.0 | ≥875 | ≥17.0 | ≥1356 | 40-38 | 318-303 | ≤120 |
N42H | 13.2-12.8 | 1.32-1.28 | ≥11.5 | ≥915 | ≥17.0 | ≥1356 | 42-40 | 334-318 | ≤120 |
N45H | 13.8-13.3 | 1.38-1.33 | ≥11.8 | ≥938 | ≥17.0 | ≥1356 | 46-43 | 358-342 | ≤120 |
N46H | 13.9-13.6 | 1.39-1.36 | ≥12.3 | ≥980 | ≥17.0 | ≥1356 | 47-44 | 374-345 | ≤120 |
N48H | 14.1-13.7 | 1.41-1.37 | ≥12.6 | ≥1010 | ≥16.0 | ≥1270 | 49-46 | 390-358 | ≤120 |
N30SH | 11.4-10.8 | 1.14-1.08 | ≥9.8 | ≥780 | ≥20.0 | ≥1600 | 30-28 | 239-223 | ≤150 |
N33SH | 11.8-11.4 | 1.18-1.14 | ≥10.3 | ≥820 | ≥20.0 | ≥1600 | 33-31 | 263-247 | ≤150 |
N35SH | 12.2-11.8 | 1.22-1.18 | ≥10.8 | ≥860 | ≥20.0 | ≥1600 | 36-33 | 286-260 | ≤150 |
N38SH | 12.6-12.2 | 1.26-1.22 | ≥11.0 | ≥875 | ≥20.0 | ≥1600 | 38-36 | 303-286 | ≤150 |
N40SH | 12.9-12.6 | 1.29-1.26 | ≥11.0 | ≥875 | ≥20.0 | ≥1600 | 40-38 | 318-303 | ≤150 |
N42SH | 13.2-12.8 | 1.32-1.28 | ≥11.5 | ≥915 | ≥20.0 | ≥1600 | 42-40 | 334-318 | ≤150 |
N45SH | 13.6-13.3 | 1.36-1.33 | ≥11.8 | ≥938 | ≥20.0 | ≥1600 | 46-42 | 358-334 | ≤150 |
N28UH | 10.8-10.4 | 1.08-1.04 | ≥9.3 | ≥740 | ≥25.0 | ≥2000 | 28-26 | 223-207 | ≤180 |
N30UH | 11.4-10.8 | 1.14-1.08 | ≥9.8 | ≥780 | ≥25.0 | ≥2000 | 30-28 | 239-223 | ≤180 |
N33UH | 11.8-11.4 | 1.18-1.14 | ≥10.3 | ≥820 | ≥25.0 | ≥2000 | 33-31 | 263-247 | ≤180 |
N35UH | 12.2-11.8 | 1.22-1.18 | ≥10.8 | ≥860 | ≥25.0 | ≥2000 | 36-33 | 286-260 | ≤180 |
N38UH | 12.6-12.2 | 1.26-1.22 | ≥11.0 | ≥875 | ≥24.0 | ≥1910 | 38-36 | 286-260 | ≤180 |
N28EH | 10.8-10.4 | 1.08-1.04 | ≥9.3 | ≥740 | ≥30.0 | ≥2400 | 28-26 | 223-207 | ≤200 |
N30EH | 11.4-10.8 | 1.14-1.08 | ≥9.8 | ≥780 | ≥30.0 | ≥2400 | 30-28 | 239-223 | ≤200 |
N33EH | 11.8-11.4 | 1.18-1.14 | ≥10.3 | ≥820 | ≥30.0 | ≥2400 | 33-31 | 263-274 | ≤200 |
N35EH | 12.2-11.8 | 1.22-1.18 | ≥10.8 | ≥860 | ≥30.0 | ≥2400 | 36-33 | 286-270 | ≤200 |
Characteristics of Surface Treatment:
Performance | Zn | Double Ni | NiCuNi | Electroless Ni | Epoxy |
Colour | White | Silver | Silver | Silver | Black |
Thickness(µ M) | 8-15 | 15-20 | 15-30 | 10-20 | 10-30 |
Pressure Cooker Test (120C,2atm,10%RH) | >15hr | >24hr | >48hr | >24hr | >24hr |
Salt Spray Test (5%NaCl,35ºC,1.2atm) | >24hr | >24hr | >48hr | >72hr | >100hr |
Physical Properties:
Tem.Coeff.of Br: | -0.09~-0.11%/ºC |
Density: | 7.5~7.6g/m3 |
Vickers hardness: | 600Hv |
Tensile Strength: | 8.0kg/mm2 |
Specific Heat: | 0.12kcal(kg,ºC) |
Young's.Modulus: | 1.6x1011N/m2 |
Poisson's.Ratio: | 0.24 |
Curie Temperature: | 310-340ºC |
Temp.Coeff.of Hc: | 0.5~-0.60%/ºC |
Electrical Resistivity: | 114µΩ.cm |
Flexural Strength: | 25kg/mm |
Coeff.of Thermal Expansion: | 4x10-6/ºC |
Thermal Conductivity: | 7.7kcal(m.h.ºC) |
Rigidity: | 0.64N/m2 |
Compressibility: | 9.8x10-2m2/N |
Relative Recoil Permeability: | 1.05 |
Shipment and Packing
Air shipment | Inner Box | Air carton |
Quantity | 136 pieces | 680 pieces |
Size: | 12X9X5cm | 29X23X14cm |
N.W. | 1.8 kgs | 8.8 kgs |
G.W. | 3.7 kgs | 10.8 kgs |
Sea Shipment | inner box | sea caton |
Quantity | 136 pieces | 816 pieces |
Size: | 12X9X6cm | 28X14X13cm |
N.W. | 1.8 kgs | 10.6 kgs |
G.W. | 2.0 kgs | 11.0 kgs |
Magnet is special goods for shipment , they need to make special packing when shippment is ship by air,
sunny fore have 9 years export experience and transportaion experience,
We will arrange air shipment in good condtion.
Quality Control:
FAQ
What information do I need to supply when I have an inquiry?
SunnyFore--If you have any inquiry , please kindly advise the following items:
Dimension , Sizes, Shape and drawing with tolerance.
Material grade or magnetic properties
Magnetic direction , quantity , Surface coating (if necessary)
Any special packing, delivery or other requirements.
Sunnyfore qualified by ISO9001:2008, RoHs, REACH, MSDS
Contact US
Thanks for your time to reading our producting. Please click contact us to get the detail quotaiton.
Wish you a nice day !
Address:
No. 34, Machong Jinguzhou, Xinhui District, Jiangmen, Jiangmen, Guangdong, China
Business Type:
Manufacturer/Factory
Business Range:
Apparel & Accessories, Arts & Crafts, Bags, Cases & Boxes, Computer Products, Electrical & Electronics, Furniture, Light Industry & Daily Use, Manufacturing & Processing Machinery, Metallurgy, Mineral & Energy, Packaging & Printing
Management System Certification:
ISO 9001
Company Introduction:
Jiangmen XinLike Magnet Company Limited specializes in producing MAGNETS, including Neodymium magnet, NdFeB magnet, and Rubber magnet.
Our company is located in Jiangmen city, Guangdong. Basic on Pearl River Delta economic zone, which is one of China′s leading economic regions and a major manufacturing center. Jiangmen city is 100 kliometers away from Guangzhou, Dong guan 60 Kilometer, Shenzhen 90 kilometer, and Hong Kong 150 kilometer.
We insist on Quality Policy of "customer first, quality first, Refined management and continuous improvement" and "people-oriented, technological-innovation and integrity-Operating" management concept. Also, we have successfully passed the ISO9001-2008 quality system certification.
Thanks to more than 10 years experience on magnetic material and more than 500 000 pieces production capacity, with experienced production skills and perfect quality management system, we can supply our customer with innovative and nice stability products.
We will complete customized samples for your in just 3 days and then finish your orders in 7 days. Our R and D Engineers are experts in developing ND-Fe-B, rare-earth and permanent magnet types in shapes and size to suit your needs.
To put this experience to work for you, start by placing an order for just 500USDOLLAR today. We believe that we can win your reliance and support with our best service with high quality products