aHR0cDovL2ZyZWVzaGlwLmNvLmtyItem specifics - Composite:NdFeB Magnet
- With Holes:Yes
- Model Number:HMME
- Application:Industrial Magnet
- Type:Permanent
- Shape:Ring
- Materials:NdFeB
- Grade:As described, can be customized
- Dimensions:As described, can be customized
- Magnetizing:Axially
- Plating:NiCuNi or Zinc
- Cerficates:RoHS Certified, ISO certified
- Tolerance:+/-0.004``
- MOQ:1 Piece, Lower Price for Larger Quantity
Packaging Details - Unit Type:Pack
- Package Weight:1.5kg (3.31lb.)
- Package Size:20cm x 10cm x 5cm (7.87in x 3.94in x 1.97in)
Packaging Details - Unit Type:Pack
- Package Weight:1.5kg (3.31lb.)
- Package Size:20cm x 10cm x 5cm (7.87in x 3.94in x 1.97in)
cellpadding="0" cellspacing="0" border="0" style="color:#111112;background-color:#ffffff;clear:both;;"> | | | | | | | | | Specifications(1"=25.4mm; 1lbs=0.453kg) - Dimensions: OD43.70 x ID25.10 x Thick 3.00 mm (Outer Diameter*Inner Diameter*Thickness)
- Tolerances: +/-0.004\`\` x +/0.004\`\` x +/-0.004\`\`
- Material: NdFeB, Grade N38SH
- Plating/Coating: NiCuNi
- Magnetization Direction: Axially (Poles on the flat faces)
- Max Operating Temp: 150ºC
- Brand: HMME
- Other: All magnets passed QC(Br. Flux.Dimensions) and 24-Hour Salt Spray Test.
Production Details: ![D43.7xD25.1x3 (2)](http://ae01.alicdn.com/kf/HTB1LseUh0fJ8KJjy0Feq6xKEXXax.jpg) MOQs (Minimal Order Quantity): We do not have MOQ yet the price for bulk order is much lo wer than that of smaller order due to production cost differences. Please feel free to contact our sales person for a quotation. Shipping Time and Cost *Shipping Methods: Considering time and cost issue, we now mainly use express shipping for magnets, which including e-Packet, EMS, UPS, FedEx, TNT, DHL. All shipping methods are with traceable tracking numbers and shipping cost paid off before shipping. That means, you do not need to pay ANY shipping cost when receiving the package. For magnets, they have to be packed very well for air shipping, which caused large dimension packages. Meaning time, only e-Packet and EMS does not charge over-sized shipping cost. Therefore, the shipping method for your package is choosen according to below order #1. ePacket -- Packages less than 2kg. It can reach US, CA, UK, FR, RU, AUS. Usually takes 10-25 days #2. EMS -- Package more than 2kg or if the shipping cost is much more reasonable. Usually takes 7-20 days #3. UPS/FedEx/TNT/DHL/Toll, etc. -- Shipping cost if much more reasonable. Usually takes 5-15 days Above shipping time can be realized by most of occasions. However, shipping can be influenced by many facts, such as bad weather, war, shopping season, etc. Therefore, please be understanding if there is a delay. We will do our best to make the package moved faster. *Shipping Weight: To avoid magnetizing influences to air flight safety, we have to pack magnets via thick foam and/or steel plates for magnetizing sheilding. Therefore, the shipping weight is much more than the magnet weight in most cases. For example, when the magnets N.W. is 2kg (4.4lbs), the shipping weight is probably more than 3.8kg (8.36lbs). Magnetic Characteristics Material Type Grade | Residual Flux Density (Br) | Coercive Force (Hc) | Intrinsic Coercive Force (Hci) | Max.Energy Product (BH)max | N35 | 11.7-12.1 KGs | >11.0 KOe | >12 KOe | 33-35 MGOe | N38 | 12.2-12.6 KGs | >11.0 KOe | >12 KOe | 36-38 MGOe | N40 | 12.6-12.9 KGs | >11.0 KOe | >12 KOe | 38-40 MGOe | N42 | 13.0-13.2 KGs | >11.0 KOe | >12 KOe | 40-42 MGOe | N45 | 13.3-13.7 KGs | >11.0 KOe | >12 KOe | 43-45 MGOe | N48 | 13.8-14.2 KGs | >11.0 KOe | >12 KOe | 45-48 MGOe | N50 | 14.1-14.5 KGs | >11.0 KOe | >11 KOe | 48-50 MGOe | N52 | 14.5-14.8 KGs | >11.2 KOe | >11 KOe | 49.5-52 MGOe | N35M | 11.7-12.1 KGs | >11.4 KOe | >14 KOe | 33-35 MGOe | N38M | 12.2-12.6 KGs | >11.4 KOe | >14 KOe | 36-38 MGOe | N40M | 12.6-12.9 KGs | >11.4 KOe | >14 KOe | 38-40 MGOe | N42M | 13.0-13.3 KGs | >11.4 KOe | >14 KOe | 40-42 MGOe | N45M | 13.3-13.7 KGs | >11.4 KOe | >14 KOe | 42-45 MGOe | N48M | 13.6-14.2 KGs | >11.4 KOe | >14 KOe | 45-48 MGOe | N50M | 14.1-14.5 KGs | >11.4 KOe | >14 KOe | 48-50 MGOe | N33H | 11.4-11.7 KGs | >10.3 KOe | >17 KOe | 31-33 MGOe | N35H | 11.7-12.1 KGs | >10.8 KOe | >17 KOe | 33-35 MGOe | N38H | 12.2-12.6 KGs | >11.4 KOe | >17 KOe | 36-38 MGOe | N40H | 12.6-12.9 KGs | >11.4 KOe | >17 KOe | 38-40 MGOe | N42H | 13.0-13.3 KGs | >11.4 KOe | >17 KOe | 40-42 MGOe | N45H | 13.3-13.7 KGs | >11.4 KOe | >17 KOe | 42-45 MGOe | N48H | 13.6-14.2 KGs | >11.4 KOe | >16 KOe | 45-48 MGOe | N30SH | 10.8-11.2 KGs | >10.1 KOe | >20 KOe | 28-30 MGOe | N33SH | 11.4-11.7 KGs | >10.3 KOe | >20 KOe | 31-33 MGOe | N35SH | 11.7-12.1 KGs | >10.8 KOe | >20 KOe | 33-35 MGOe | N38SH | 12.2-12.6 KGs | >11.4 KOe | >20 KOe | 36-38 MGOe | N40SH | 12.6-12.9 KGs | >11.4 KOe | >20 KOe | 38-40 MGOe | N42SH | 13.0-13.3 KGs | >11.4 KOe | >20 KOe | 40-42 MGOe | N45SH | 13.3-13.7 KGs | >11.4 KOe | >19 KOe | 43-45 MGOe | N28UH | 10.4-10.8 KGs | >9.8 KOe | >25 KOe | 26-28 MGOe | N30UH | 10.8-11.2 KGs | >10.1 KOe | >25 KOe | 28-30 MGOe | N33UH | 11.4-11.7 KGs | >10.3 KOe | >25 KOe | 31-33 MGOe | N35UH | 11.7-12.1 KGs | >10.8 KOe | >25 KOe | 33-35 MGOe | N38UH | 12.2-12.6 KGs | >11.4 KOe | >25 KOe | 36-38 MGOe | N40UH | 12.6-12.9 KGs | >11.4 KOe | >25 KOe | 38-40 MGOe | N30EH | 10.8-11.2 KGs | >10.1 KOe | >30 KOe | 28-30 MGOe | N33EH | 11.4-11.7 KGs | >10.3 KOe | >30 KOe | 31-33 MGOe | N35EH | 11.7-12.1 KGs | >10.8 KOe | >30 KOe | 33-35 MGOe | N38EH | 12.2-12.6 KGs | >10.8 KOe | >30 KOe | 36-38 MGOe |
Thermal Characteristics Neodymium Material Type | Thermal Expansion Coeff. | Maximum Operating Temp | Curie Temp | Thermal Conductivity | %/°C | °C (°F) | °C (°F) | kcal/m-h-°C | N | -0.12 | 176°F (80°C) | 590°F (310°C) | 7.7 | NM | -0.12 | 212°F (100°C) | 644°F (340°C) | 7.7 | NH | -0.11 | 248°F (120°C) | 644°F (340°C) | 7.7 | NSH | -0.10 | 302°F (150°C) | 644°F (340°C) | 7.7 | NUH | -0.10 | 356°F (180°C) | 662°F (350°C) | 7.7 | NEH | -0.10 | 392°F (200°C) | 662°F (350°C) | 7.7 |
The Thermal Characteristics listed above are values commonly associated with each magnet\`s grade or material. Actual performance in your application may vary with other factors, including the shape of the magnet, the Permeance Coefficient or load line, and how it is used in a circuit. About Shipping
We provide free shipping for most of the products. Some are with economy shipping and some are with express shipping. For economy shipping, there are many options, including Standard Shipping, ePacket, Korea Post, POS Malaysia, Special Line Yanwen, etc. Most of the packages can be delivered within 10-35 days, but for some countries, economy shipping may take up to 60 days (Brazil may take 90 days). Please don’t hesitate to contact us if we can be of any assistance.
For express shipping, FedEx IE&IP, UPS Saver&Expedited, DHL, DPEX are mostly used. Premium Shipping, EMS, Yodel, SF Express are also available. Express shipping usually takes 4-12 days for a delivery.
![](http://ae01.alicdn.com/kf/HTB1i0rzXErrK1RkSne1q6ArVVXas.jpg)
After Sale and Feedbacks
Please leave us 5-star DSR ratings if you are satisfied with our products and services. Your feedbacks are very important for us and we hope you could leave us a positive feedback. We would leave you a great feedback, too. If there is any problem with the logistics or products, please make sure to contact us before leaving negative feedbacks. We have complete aftersales service system at your service all the time. There are always a way to solve a problem by communications and mutual understanding. You can contact us by below ways:
A. Via Message or Order Messages B. Via Trade Manager C. Via Emails or other contacts
We give 30-Day unconditional return for refund service warranty, even the product arrived at perfect condition. SHOPPING WITH US, SHOPPING WITH NO RISK! |
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