China alibaba small block neodymiums magnet used in cabinet door stopper

China alibaba small block neodymiums magnet used in cabinet door stopper Product info  Material: Sintered Neodymium-Iron-Boron; Temperature: the max operation temp is up to 200 degree centigrade; Grade:N33-N52,33M-48M,33H-48H,30SH-45SH,30UH-38UH and 30EH-35EH; Shape: ring,block,disc,bar and so on Size: according to customers' request; Coating: Ni, Zn, gold, copper, epoxy and so on; Process Flow: Raw material-----Mixing-----Melting-----Powder-----Pressing-----Sintering----MagneticTesting-----Cutting & Grinding-----Coating-----Inspection-----Packing and shipping Material Information
Produced by powder metallurgical method with chemical composition of Nd2Fe14B
High resistance to demangnetization
High magnetic values (Br, bHc, iHC und (BH)max)
Excellent cost to performance ratio
Reasonable temperature stability
Very brittle & hard
Poorest corrosion resistance of all commercial magnetic materials
Not suitable for application which exposed in high temperture conditions   Typical Physical Properties

Curie Temperature (°C)	310-370
Maximum Operating Temperature (°C)	80-240
Resistivity (µ ohm.cm)	160
Hardness (Hv)	560-580
Density (g/cm3)	7.40
Relative Recoil Permeability (µrec)	1.05
Saturation Field Strength, kOe (kA/m)	30-40 (2400-3200)
Temperature Coefficient of Br (%/°C)	-0.12 ~ -0.10
Temperature Coefficient of iHc (%/°C)	-0.6

      Attributes of Neodymium Material    Very high resistance to demagnetization;
High energy for size;
Good in ambient temperature;
Moderately priced;
Material is corrosive and should be coated for long term maximum energy output;
Low working temperature for heat applications, but higher levels of heat resistance materials are being introduced periodically;     Magnetization direction     Neodymium series magnetic property
Product show Quality Assurance Our quality assurance system in factory meets the requirements of ISO9001:2000 as certified by BM TRADA & UKAS. Our products meet RoHS standard as per test reports issued by an internationally recognized laboratory SGS. Please check the relevant certificate, reports in our website.  
Packing As the magnets have strong attraction and we will use the spacer to apart the magnets each other in case people will be hurt when take it out. Then, they will be packed in a white box of pieces each, several boxes to a carton.
+By Air: If the goods will be shipped by air, all the magnetic should be degaussed and we will use Iron sheet to shield.
+By Sea: If the goods are will be shipped by sea, we will place a pallet on the bottom of cartons.
Payment  
Shipping   Express (TNT, DHL, FedEx, UPS, etc), Air, Ocean.
a: The weight is under 40Kgs, we recommend to send them in shielding boxes to you by Express.
b: The weight is between 40Kgs-100Kgs, it can be sent by Express or Air.
c: The weight is over 100Kgs, we recommend to send them by Ocean.
About us

Company   name	Hangzhou YangYi magnetics Co., Ltd
Year   of establishment	2007
Location	Hangzhou City, Zhejiang Province, P.R. China
Main   products	Neodymium magnets, SmCo magnets, Alnico   magnets, Mini magnets, Magnetic filters, pot magnets, magnetic assemblies,   etc
Quality   certification	ISO9008:2008, SGS
Our   Market	America, Germany, Italy, UK, France, Japan,   Korea, Iran, Israel, Domestic market, etc

 
Why choose us?   1.  Professional factory, 5 years gold supplier and Trade Assurance supplier in Alibaba.   2. More than 10 years experiences for magnet and export, we can supply technical support and    develop projects with customers together.   3. High quality products, we have advanced equipment and good quality system to ensure the products quality.   4. Competitive prices and quickly delivery.   5.  Good service. Usually we will reply customer within 24 hours.   6. Various payment way.
FAQ   1:How long will you give me the reply? we will reply you in 48 hours.   2:How about the quality of the magnets? We have the certification of ISO, SGS, ROHS.   3:How is the price? As we believe the quality is the most important, we will provide the high quality magnet with reasonable price.   4:Could I get samples? Yes, we have materials in stock to help you to get the samples as soon as we can.   5:How long will you deliver sample and bulk order? If we have materials in our stock, we can send them within 3 days. If we don’t have material in stock, production time for sample is 5-10 days, 15-25 days for bulk order.   6. How to pay you? T/T, Western Union, L/C, ESCROW.     Any questions,pleas be free to contact me.