Neodymium ring magnet linear generator for sale

Neodymium ring magnet linear generator for sale (HS code: 85051110)   Product Description   Common Use       Magnetic recording media: Video Home System (VHS) tapes contain a reel of magnetic tape. The information that makes up the video and sound is encoded on the magnetic coating on the tape.   Common audio cassettes also rely on magnetic tape. Similarly, in computers, floppy disks and hard disks record data on a thin magnetic coating.   Credit, debit, and automatic teller machine cards: All of these cards have a magnetic strip on one side. This strip encodes the information to contact an individual's financial institution and connect with their account(s).   Common televisions and computer monitors: TV and computer screens containing a cathode ray tube employ an electromagnet to guide electrons to the screen. Plasma screens andLCDs use different technologies.   Speakers and microphones: Most speakers employ a permanent magnet and a current-carrying coil to convert electric energy (the signal) into mechanical energy (movement that creates the sound). The coil is wrapped around a bobbin attached to the speaker cone and carries the signal as changing current that interacts with the field of the permanent magnet. The voice coilfeels a magnetic force and in response, moves the cone and pressurizes the neighboring air, thus generating sound. Dynamic microphones employ the same concept, but in reverse. A microphone has a diaphragm or membrane attached to a coil of wire. The coil rests inside a specially shaped magnet. When sound vibrates the membrane, the coil is vibrated as well. As the coil moves through the magnetic field, a voltage is induced across the coil. This voltage drives a current in the wire that is characteristic of the original sound.   About neodymium 1. Physical Properties of Permanent Neodymium Magnet: a) NdFeB magnets offer the highest energy product of any material today and are available in a very wide range of shapes, sizes and grades.   b) NdFeB magnets have some limitations due to their corrosion behavior. In humid applications, a protective plating is highly recommended.  Platings which have been used successfully include, parylene,epoxy resin,zinc plating, gold plating, Ag plating,nickel plating and combinations of these platings.  Changes in composition and processing over the past several years have resulted in significant improvements in corrosion resistance and high temperature performance.    2.Magnetic characteristics of Permanent Neodymium Magnet:   It is customized for you.   3.Shape of Neodymium Magnet: Disc, Ring, Block, Segment, Cylinder, Trapezoid, Customized Design(Design proper magnets for clients specific requirements)   4.Tolerance: +/-0.05mm for small dimensions, +/-0.1mm for common specifications, +/-0.15mm for big blocks   5.Coating:  Ni, Ni-Cu-Ni, Zn, Epoxy, Parylene, etc.   6.Applications:  Motors, Generators,Neodymium Pot,Speakers,Sensors,Earphones and other musical instruments,Magnetic therapy devices,Magnetic Chuck,Other magnetic applications.     7 .Magnetization of magnet :   Packaging & Shipping 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.     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.   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. Our Services 1.Quick response: we commit to give you immediate detailed quotations with instructions and product material. And customize your required product in the shortest time. 2. High-quality products and favorable price: we reduce material costs through purchase large quantitative of raw materials and other measures from manufacturers directly, which ensure good quality and favorable price of our products, and we share our profit with customers. 3. Closed service: Big or long-term cooperation customers can become our VIP customers and enjoy more competitive prices and VIP service. They love us: They love us:   1.  Professional factory, 6 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.   We will try our best to meet your needs!     Company Information Yang Yi Magnetics is a Hangzhou based magnet supplier,specializing in Ndfeb,SmCo,Alnico,mini magnet and magnetic assemblies.We manufacture reliable magnets and distribute quality magnets to the globe. Yang Yi experienced work team pursues "valued based product adds value to client",as a consequence,we enjoy good reputation among our clients. Durable magnets and magnetic assemblies we produce have been applied in automation,robotics,turbine parts,toys and etc.Clients from the globe give us strong support because of our prompt service and value based products.Welcome to contact us.