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High quality custom magnetic disc ring square block arc shape N35 N42 N52 super strong neodymium magnets permanent NdFeB magnets
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Meo Machinery Co.LTD
China - Hangzhou
Manufacturing and trade
Trade Capacity
Export Percentage
0-30%
Nearest Port
Shanghai
Accepted Delivery Terms
Employees
501-1000 people
Accepted Payment Currency
USD,EUR,JPY
Average Lead Time
90 Day(s)
Certifications
Product Specifications
--Product Description
Shipping discount, as low as 20~30% discount
100% Satisfaction Guaranteed On Quality
Samples and Trial Orders Are Most Welcome
Accept custom
100% Satisfaction Guaranteed On Quality
Samples and Trial Orders Are Most Welcome
Accept custom
Products Description
Item | Value | ||||||
Material | Sintered NdFeb | ||||||
Size | 1-200mm | ||||||
Shape | Round ,block,square ,cylinder ,ring bar ,cube,accept customized | ||||||
Grade | N35 N38 N40 N42 N45 N48 N50 N52 | ||||||
Coating | Ni, Zn, Epoxy, Ag, Au, Passivated | ||||||
Thickness, Axial, RadialColor | Ag, Au, black, gray,multi | ||||||
Magnetism direction | Thickness, Axial, Radial Axially magnetized : magnetized pole at the flat ends Thickness : magnetized pole at the biggest furface | ||||||
Temperature | 80℃ to 220℃ | ||||||
Tolerance | ±0.05mm | ||||||
Certification | ROHS, REACH | ||||||
Packing | Special safe package | ||||||
Our service
Various Sizes
NdFeB magnet
Various shapes
There are a variety of options for coatings, nickel, zinc, tin, copper, epoxy, silver and gold.
Company Profile
Production process
Punching
Wire cutting
Fully automatic slicing
IPQC
Double-sided grinding
IPQC
Plating
IPQC
Automatic magnetic material test
salt spray without oxidation for 24h test
FQC
Packing & OQC
Special safe package
a. Plastic separation will be put between magnets, then customer could be easily separate.
b. Batch magnets will be put in small white box.
c. 8 white carton boxes(11.5x9x6.5cm) will be put in a carton (32.5x24x15cm).Foam form will be put between white boxes to avoid broken during shipment.
d.If shipping by express or by air,will put iron sheet between foam and external carton to shield the magnetic field.
e. More than 10 cartons will be packed to pallet, specially for shipment by sea.
b. Batch magnets will be put in small white box.
c. 8 white carton boxes(11.5x9x6.5cm) will be put in a carton (32.5x24x15cm).Foam form will be put between white boxes to avoid broken during shipment.
d.If shipping by express or by air,will put iron sheet between foam and external carton to shield the magnetic field.
e. More than 10 cartons will be packed to pallet, specially for shipment by sea.
Customer feedback
PRODUCT SPECIFICATIONS
Property ,Grades of Neodymium Magnet
Neodymium magnets are all graded by the material they are made of. As a very general rule, the higher the grade (the number following the 'N'), the stronger the magnet. The highest grade of neodymium magnet currently available is N52. Any letter following the grade refers to the temperature rating of the magnet. If there are no letters following the grade, then the magnet is standard temperature neodymium. The temperature ratings are standard (no designation) - M - H - SH - UH - EH.
Sinteed NdFeB Magnetic Properties | ||||||||||||||||||
Grade | Residual lnduction | Coercive Force | lntrinsic Coercivity | Maximum Energy Product | TW | |||||||||||||
Br | HCb | HCj | (BH)max | |||||||||||||||
kGs | T | kOe | kA/m | kOe | kA/m | MGOe | kj/m3 | ℃ | ||||||||||
N35 | 11.7-12.1 | 1.17-1.21 | ≥10.9 | ≥868 | ≥12 | ≥955 | 33-36 | 263-287 | 80 | |||||||||
N38 | 12.1-12.5 | 1.21-1.25 | ≥11.3 | ≥899 | 36-39 | 287-310 | ||||||||||||
N40 | 12.5-12.8 | 1.25-1.28 | ≥11.6 | ≥923 | 38-41 | 302-326 | ||||||||||||
N42 | 12.8-13.2 | 1.28-1.32 | ≥11.6 | ≥923 | 40-43 | 318-342 | ||||||||||||
N45 | 13.2-13.8 | 1.32-1.38 | ≥11.0 | ≥876 | 43-46 | 342-366 | ||||||||||||
N48 | 13.8-14.2 | 1.38-1.42 | ≥10.5 | ≥835 | ≥11 | ≥876 | 46-49 | 366-390 | ||||||||||
N50 | 14.0-14.5 | 1.40-1.45 | ≥10.0 | ≥796 | 48-51 | 382-406 | 60 | |||||||||||
N52 | 14.3-14.8 | 1.43-1.48 | ≥10.0 | ≥796 | 50-53 | 398-422 | ||||||||||||
35M | 11.7-12.2 | 1.17-1.22 | ≥10.9 | ≥868 | ≥14 | ≥1114 | 33-36 | 263-287 | 100 | |||||||||
38M | 12.2-12.5 | 1.22-1.25 | ≥11.3 | ≥899 | 36-38 | 287-302 | ||||||||||||
40M | 12.5-12.8 | 1.25-1.28 | ≥11.6 | ≥923 | 38-40 | 302-318 | ||||||||||||
42M | 12.8-13.2 | 1.28-1.32 | ≥12.0 | ≥955 | 40-43 | 318-342 | ||||||||||||
45M | 13.2-13.8 | 1.32-1.38 | ≥12.5 | ≥955 | 43-46 | 342-366 | ||||||||||||
48M | 13.6-14.0 | 1.36-1.40 | ≥12.8 | ≥1019 | 45-48 | 358-382 | ||||||||||||
50M | 14.0-14.5 | 1.40-1.45 | ≥13.1 | ≥1043 | 48-51 | 382-406 | ||||||||||||
33H | 11.3-11.7 | 1.13-1.17 | ≥10.5 | ≥836 | ≥17 | ≥1353 | 31-34 | 247-271 | 120 | |||||||||
35H | 11.7-12.1 | 1.17-1.21 | ≥10.9 | ≥868 | 33-36 | 263-287 | ||||||||||||
38H | 12.1-12.5 | 1.21-1.25 | ≥11.3 | ≥899 | 36-39 | 287-310 | ||||||||||||
40H | 12.4-12.8 | 1.24-1.28 | ≥11.6 | ≥923 | 38-41 | 302-326 | ||||||||||||
42H | 12.8-13.2 | 1.28-1.32 | ≥12.0 | ≥955 | 40-43 | 318-342 | ||||||||||||
45H | 13.2-13.6 | 1.32-1.36 | ≥12.1 | ≥963 | 43-46 | 326-358 | ||||||||||||
48H | 13.6-14.0 | 1.36-1.40 | ≥12.8 | ≥1019 | ≥16 | ≥1274 | 46-48 | 358-382 | ||||||||||
33SH | 11.3-11.7 | 1.13-1.17 | ≥10.6 | ≥844 | ≥20 | ≥1592 | 31-34 | 247-272 | 150 | |||||||||
35SH | 11.7-12.1 | 1.17-1.21 | ≥11.0 | ≥876 | 33-36 | 263-287 | ||||||||||||
38SH | 12.1-12.5 | 1.21-1.25 | ≥11.4 | ≥907 | 36-39 | 287-310 | ||||||||||||
40SH | 12.4-12.8 | 1.24-1.28 | ≥11.8 | ≥939 | 38-40 | 302-326 | ||||||||||||
42SH | 12.8-13.2 | 1.28-1.32 | ≥12.2 | ≥971 | 40-43 | 318-342 | ||||||||||||
45SH | 13.2-13.8 | 1.32-1.38 | ≥12.3 | ≥979 | 43-46 | 342-366 | ||||||||||||
30UH | 10.8-11.3 | 1.08-1.13 | ≥10.2 | ≥812 | ≥25 | ≥1990 | 28-31 | 223-247 | 180 | |||||||||
33UH | 11.3-11.7 | 1.13-1.17 | ≥10.7 | ≥852 | 31-34 | 247-271 | ||||||||||||
35UH | 11.7-12.2 | 1.17-1.22 | ≥10.9 | ≥876 | 33-36 | 263-287 | ||||||||||||
38UH | 12.2-12.5 | 1.22-1.25 | ≥11.4 | ≥907 | 36-38 | 287-302 | ||||||||||||
40UH | 12.5-12.8 | 1.25-1.28 | ≥11.8 | ≥939 | 38-40 | 302-318 | ||||||||||||
28EH | 10.4-10.9 | 1.04-1.09 | ≥9.8 | ≥780 | ≥30 | ≥2388 | 26-29 | 207-231 | 200 | |||||||||
30EH | 10.8-11.3 | 1.08-1.13 | ≥10.2 | ≥812 | 28-31 | 223-247 | ||||||||||||
33EH | 11.3-11.7 | 1.13-1.17 | ≥10.7 | ≥852 | 31-33 | 247-263 | ||||||||||||
35EH | 11.8-12.2 | 1.18-1.22 | ≥10.9 | ≥868 | 33-36 | 263-287 | ||||||||||||
38EH | 12.2-12.5 | 1.22-1.25 | ≥11.4 | ≥907 | 36-38 | 287-302 | ||||||||||||
28AH | 10.3-10.9 | 1.03-1.09 | ≥9.80 | ≥780 | ≥35 | ≥2786 | 26-29 | 207-231 | 220 | |||||||||
30AH | 10.8-11.3 | 1.08-1.13 | ≥10.2 | ≥804 | 28-31 | 223-247 | ||||||||||||
33AH | 11.3-12.1 | 1.13-1.21 | ≥10.7 | ≥852 | 31-35 | 247-279 | ||||||||||||
Coating
Neodymium magnets are a composition of mostly Neodymium, Iron and Boron. If left exposed to the elements, the iron in the magnet will rust. To protect the magnet from corrosion and to strengthen the brittle magnet material, it is usually preferable for the magnet to be coated. There are a variety of options for coatings, but nickel is the most common and usually preferred. Our nickel plated magnets are actually triple plated with layers of nickel, copper, and nickel again. This triple coating makes our magnets much more durable than the more common single nickel plated magnets. Some other options for coating are zinc, tin, copper, epoxy, silver and gold. Our gold plated magnets are actually quadruple plated with nickel, copper, nickel and a top coating of gold..
Plating Instruction | ||||||||
Kinds | Layer | Thickness（micron） | Color | Resistance to corrosion | ||||
Passivation phosphating | 1-2 | Ag gray | C | |||||
Ni | Ni+Ni | 10-20 | Ag white | A+ | ||||
Ni+Cu+Ni | ||||||||
ZN | ZN | 8-10 | Blue white | B | ||||
C-Zn | Muti color | A | ||||||
CR3+Zn | ZN | 8-10 | Blue white | B | ||||
C-Zn | Muti color | A | ||||||
Sn | Ni+Cu+Sn | 15-20 | Ag color | A+ | ||||
Au | Ni+Cu+Au | 10-20 | Au color | A+ | ||||
Ag | Ni+Ag | 10-20 | Ag color | A+ | ||||
Epoxy | Epoxy | 15-25 | Black, gray | A | ||||
Ni+Cu+Epoxy | ||||||||
Zn+Epoxy | ||||||||
Magnetization direction
Round shape : axially or diametrical , Block: thickness or Length , Cylinder: axially or diametrical ,
Ring: axially or diametrical , Bar: axially or diametrical, Arc: diametrical or width or thickness
Application
Ndfeb magnets possess extremely high magnetic properties and are widely used:
1. Electroacoustic field: loudspeaker, receiver, microphone, alarm, stage audio, car audio, etc.
2. Electronic appliances: permanent magnet vacuum circuit breaker, magnetic latching relay, watt-hour meter, water meter, acoustic meter, reed pipe, sensor, etc.
3. Motor field: VCM, CDDVD-ROM, generator, motor, servo motor, micro motor, motor, vibration motor, etc.
4. Mechanical equipment: magnetic separation, magnetic separator, magnetic crane, magnetic machinery, etc.
5. Medical care: NUCLEAR magnetic resonance apparatus, medical devices, magnetic healthcare products, magnetized fuel economizer, etc.
6. Other industries: magnetization anti-wax device, pipe descaler, magnetic fixture, automatic mahjong machine, magnetic lock, magnetic doors and Windows, luggage and bags, leather goods, toys, tools, gift packaging, etc
FAQ
Q1: Are you a factory or trading company?
A1: We are factory and owned 2 different factories(Home and Garden serials) with 600 workers in total.
Q2: What is your hot items?
A2: We do have 20 years experience for manufacture NdFeB magnet and Ferrite magnet, The main services in electro-acoustic products, tools manufacturing, medical equipment, instrumentation, electrical machinery, power, furniture door suction, lighting suction cups, bags and leather goods, glasses box, magnetic therapy, magnetic toys and other.
Q3: How about the Shipping Method?
A3: DHL/UPS/TNT/Fedex and other air shipments and sea shipments are all workable. In one words, we could do any shipments you wanted.
Q4: How about the delivery date?
A4: In General, the delivery date will be 7-15 working days for normal buy quantity. But if bigger order, please check us further.
Q5: How about the label and the logo?
A5: Customize label and logo is workable.
Q6: How about the MOQ ?
A6: Lower MOQ of 50 PCS per style.
Sales manager:Ms Kou Yang
Email:kouyangqianglian@qq.com
Tel: 0086-0769-33362288
WhatApp: +86 15673528758
Skype: ptm_kouyang
Wechat: 15673528758
QQ: 991061756
Tel: 0086-0769-33362288
WhatApp: +86 15673528758
Skype: ptm_kouyang
Wechat: 15673528758
QQ: 991061756
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