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50 Circular 4mm Diameter x 1.5mm Thickness Neodymium (NdFeB) Magnets
Brand New, unused, in packagingThis listing is for one pack of 50 Circular 4 mm diameter x 1.5 mm thickness Neodymium (NdFeB) Magnets.
*Pull is measured on a horizontal steel plate. To work out what the holding force would be on a vertical surface divide the pull by 4 They are magnetised axially so that one face is North and the other is South. Neodymium (chemical symbol Nd) is element 60 on the periodic table. It’s a rare earth metal and forms one of the Lanthanides series. When added to Iron (Fe) and Boron (B) (chemical formula Nd14Fe21B) the resultant magnets are the strongest magnets currently available. Neodymium magnets are sometimes known as NdFeB, Neo, Neod or NIB magnets. Their uses are very varied but care must be taken because they are brittle if allowed to jump together, are normally only safe for use below 80°C/176°F although we do stock some high and extra high operating temperature magnets. The smaller magnets are often used for jewellery clasps, magnetic therapy jewellery, magnetic earrings (one each side of the ear), fridge magnets, model train connecters, motors, science projects etc. Larger magnets are used for science projects, actuators, separators, speakers, pumps, magnetic therapy and circuit breakers in power stations. Neodymium magnets are usually coated to prevent the iron from rusting. Normally this is a Nickel-Copper-Nickel plating, however, Zinc, Tin, Black Nickel, Gold and Silver plating are also used as are Epoxy resin and PTFE (better known under the brand name Teflon). The Gold and Silver plated magnets are often used to make homemade magnetic therapy jewellery; particularly using a number of spheres to make necklaces or bracelets. Here is just some of the uses that we know our neodymium magnets have been put to: · Repairing my fridge seal. Put a couple inside the plastic of the seal and it holds the door shut beautifully · Experimenting with cathode ray tubes (TV's and computer monitors) · Hold directions to my motorbike petrol tank so they don't come off at speed · Removing parts from a punch press, safely. · Cleaning up debris in a machining workshop. · Hanging wet clothes to tent poles or parts of a caravan · Levitation · Tie clip · Violin mute. Put small discs on each side of the bridge to add mass and quiet the violin. · Slot car traction · Holding down a car cover · Pulling dents out of vehicles. · Attaching tracking devices to motor vehicles. · Jewellery clasps · Hanging fairy lights · Re-magnetising alnico (Aluminium-Nickel-Cobalt) magnets. · Hanging tapestries in a warehouse. · Magic illusion tricks · With 1 magnet and a ball bearing I remove dents from brass musical instruments. · Holding all the lathe tools to the lathe · Magnetic stirring device · Bike light generator · Christmas presents! · Wind power alternator · Alleviate joint pain - magnetic therapy · Hold a small vice down · Welding · Picking up nails/screws/needles · School projects and demonstations · Hold lines and tape on steel boat hull. · Collecting nails or bits of barbed wire from pasture · Oil filter in my motorbike · Guitar pickups · Attaching tools securely to my car · Holding the roof down on my shed · Holding safety shield on machine tools · Holding trailer lights on towed vehicle. · Picking keys out of storm drains! · Retrieving an antique shotgun from a well. · Treasure hunting · Loudspeakers · Cleaning up the oil in go-cart racing engines. Glue them inside! · Used to create great ear, nose, lip rings and therefore avoid piercing. · Car Top advertising signs · Stud finder in walls · Holding vehicle number plates to the car · Holding sheet metal together for welding · Dampening for seismograph · Door latches on a tree-house · Hold down a tarpaulin · Hanging tools in sheds and garages · Door catches for cupboards and wardrobes. · Cleaning fish tank glass from the outside · Holding a set of house keys securely in a car. · For the darkroom: to secure metal developing tank parts, reels, etc. To lock down metal wash tank doors instead of sticky bolt locks. · Motor experiments · Water Conditioning · Magic tricks · Erasing tapes · Remove metal debris from a well · Homemade alternator · Movement of paramagnetic beads for biomedical applications · Erasing credit card data · Cleaning plastics granulate for moulding. · Holding a vehicle glove box closed Please note that if you are intending to glue the magnets to something you will need to use an adhesive which will bond to the metal coating OR key the surface lightly with very fine glass paper. Other sizes and quantities also available in our eBay shop Sign up for my email newsletters
POSTAGE AND PACKING Please check out our Posting Policy. If you are purchasing more than one item from us please request a total price. We are more than happy to provide a combined invoice which includes DISCOUNTED postage based upon weight AND size. IMPORTANT - Payment instructions PAYPAL ONLY please
![]() Powered by eBay Turbo Lister On 27-Sep-09 at 11:22:40 BST, seller added the following information:International Buyers Following the changes made by eBay on 22 September 2009, we have taken the decision to stop posting to selected international destinations. This is because of extensive problems we have experienced in shipping to these locations which has resulted in our having to subsidise the postage by sending all items by the tracked 'International Signed For' service. Buyers in these destinations are blocked from purchasing our listings. These destinations are: Italy, Afghanistan, Maldives, Kazakhstan, Greece, Turkey, India, Africa, Croatia, Republic of, Moldova, Bangladesh, Nepal, Malta, Korea, North, Azerbaijan Republic, Korea, South, Netherlands, Mongolia, Kyrgyzstan, Bhutan, Uzbekistan, Romania, Cyprus, Bulgaria, Tajikistan, Sri Lanka, Turkmenistan, Albania, Pakistan, Armenia, Georgia |
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Value Added Tax Number: UK 840976011 | ||||||
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Postage and packaging Item location: Devizes, United Kingdom Dispatches to: N. and S. America, Europe, Asia, Australia
 
*The estimated delivery time is based on the seller's dispatch time, the postal service selected, and when the seller receives cleared payment. Sellers are not responsible for shipping service transit times. Transit times may vary, particularly during peak periods.
VAT price: 15.0% (included in the listed price). If you have questions about this VAT, please contact the seller. The actual VAT requirements and rates may vary depending on the final sale. | ||||||||||||||||||||||
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