4pcs MAGNETS with TEETH! - Neodymium RODs 3/4" - TRIPLE PLATED

Description

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4 pcs
- Adult Strength, nickel plated, ROD magnets
3/4
" in diameter and 3/4" thick
(0.75 inch = 19.05 millimeter)
SHIPPING is only for domestic orders!
-----------------
20 years of
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!
DESCRIPTION:
and some caution:
4 Large ROD MAGNETS
Above, one lot of 4 ROD magnets 3/4" x 3/4".
Each ROD magnet measures 0.75" length x 0.75" diameter.
NEODYMIUM-IRON-BORON 12,300 gauss
Poles are the 0.75" circular ends.
Licensed Nd-Fe-B Product
These rare earth, neodymium-iron-boron magnets are
new
, and are nickel plated to prevent corrosion.
A rare earth ROD magnet this big is a little scary to handle. Caution is required to avoid hurting oneself and/or breaking magnets!
Two of these thick NdFeB magnets stuck together pole to pole are very difficult to even slide apart.
Most
people simply could not separate them without a nonferrous spacer in between. While trying to separate a pair of these aggressive magnets, a
'bite
' can occur with an outcome worse than a simple blood blister! Whatever you do with these magnets you must do with extra care. All neodymium magnets are brittle and that makes them physically fragile. The aggressive attraction they have for ferrous metals and especially for each other can cause them to smack together very hard resulting in chips or breaks. These magnets
should be covered
if they are to be subjected to frequent handling
and/or
the possibility of being "smacked" together or to hard metal surfaces. Strapping tape around cardboard or chipboard makes a fine cover, is easily replaced and provides excellent protection for both the magnet and the person handling it.
Above an image of 4 magnets with cardboard + strapping tape covers beside 4 uncovered magnets.
A large invisible field exists around each one of these magnets. Basically, the only materials that will have much affect on the field around the magnet are other magnets and ferrous metals. Since the only materials that will significantly affect the large field have iron in them, the cardboard and tape cover will not affect the field around the magnet at all so the covered magnet can be used for many impressive demonstrations while avoiding the danger of handling the uncovered magnet. Heat shrink tubing, other types of plastic, copper or aluminum can all can be utilized for covers over magnets that help remove the "TEETH" in the event the magnet gets a chance to bite.
DEMONSTRATIONS OF LARGE MAGNETIC FIELDS:
While rocking a single ROD magnet at 2ft from the surface of a computer CRT monitor evidence of the interacting field exists in the form of a slight rocking of the entire screen. This is done by alternating the poles of the magnet pointing toward the screen. Magnets do not affect LCD screens such as on laptops.
A single magnet moving at a distance of 3ft from a compass will make the needle begin to move and if one of these ROD magnets was left 2ft from a compass on a boat or plane, someone could end up significantly misguided! Be careful about where you store these magnets.
A pair of these thick ROD magnets will hold aggressively through a small adult hand, and
should not
be placed on either side of a child's hand as the pressure would induce pain. My own hand is small but if I have the pair situated on either side of my hand, through the center of my palm, I can position my hand palm up and begin lifting the magnet off the palm side while still maintaining a "magnetic hold" on the bottom magnet. Although the magnet on the backside of my hand is being pulled straight down by the force of gravity, I can continue to lift the top (palm-side) magnet about 1.5" off the uncompressed surface of my palm before the lower magnet drops away! If you decide to try this demo with two magnets through the hand, it is very important to have a clear, soft, non-ferrous landing spot for the magnet that will drop. If a magnet were to drop from hand height to the floor, you must expect that the bouncing magnet mass will be aggressively looking for something ferrous in the vicinity!
Magnetism never sleeps
! To us humans as witness, this fact can be impressive in a magical way or can be utilized for relentless service... but the magnet being "always on" can also cause pain and destruction. In a way, these remarkably strong magnets seem almost alive. They are kind of sleeping when ferrous objects aren't nearby but any nearby iron can make the magnets wake up quickly and can move in ways that seem to ignore gravity! This thick size ROD magnet is great for pulling through gaps that are too large for the thinner DISC shaped magnets.
Each ROD magnet can hold up to 31 lbs!
Below is an image of
one
of these large ROD magnets being tested for magnetic holding strength.
Basically, the test magnet is stuck to the red painted iron at the bottom of the image and to the head of the bolt,
which is attached to the spring scale. As the hydraulic jack is pumped the magnetic bond pulls down on the spring scale.
This plated ROD magnet tested to 31 lbs!
These test results are basically a "best case scenario" for the amount of hold the ROD magnet can have on a thick piece of iron. The weight is being held straight in line with the pulling down force of gravity. Be clear that a magnet stuck vertically on the side of a fridge will only be able to hold a fraction of the weight that it can hold in the horizontal position as indicated in picture of the testing. In a pole to pole or a pole to flat iron surface use of the magnet, such as in my testing setup above, the results are affected more by the surface area of the magnet than by the thickness between the poles. These thick ROD magnets are best utilized for use through gaps, where thinner DISC shapes do not hold well. Sweepers, retrieval tools, ferrous separators, magical illusion, and scientific demonstration of large magnetic fields are all good applications for these large ROD magnets.
These handsome magnets will suffer
no loss of magnetic strength
from shock
or
proximity to other strong magnets. They have
no need
for keepers, which are required for maintaining the charge in alnico horseshoe magnets. Basically, if these magnets are not heated above 176 degrees F, they will prove to be impressively
permanent
.
It's really fun and educational to tinker with the level of magnetism made available by this new, super-strong, magnet technology. Most of us fondly remember our early magnet experiences. When your first
rare earth
magnet experience occurs, it may rekindle some of those early experiences, and more!
NE
O
DYMIUM-
IRO
N
-BORON
NICKEL PLATED - GRADE 36
Licensed Nd-Fe-B Product
POWERFUL UNSEEN FORCES!
Magnets bring out the child and the scientist in us!
No loss of strength
from close proximity to other magnets.
NO MEASURABLE LOSS OF MAGNETISM
IN YOUR LIFETIME
.
ADULT STRENGTH MAGNETS
============================================================================
PAYMENT:
Terms:
Buyer should plan to make contact within 3 days, payment should be received within 10 days of close of this listing.
Acceptable forms of payment:
check or credit card through PayPal online services. Payments by check or pending eCheck are cleared before the shipment is postmarked.
SHIPPING
:
Shipping is .00 to any destination within the USA. All magnets will be properly packaged for safe transport through the US Postal system.
Orders are shipped within 5 business days of receipt of payment, which is stated as a "worse case scenario" allowing some flexibility for the realities of day to day life. Many orders are processed within 24 to 48 hours of receipt of payment. Customer service is a high priority. Paid orders are processed promptly.
Please confirm by email if you have any questions about combining orders for payment and shipping or if you have questions about the processing time for specific orders.
INTERNATIONAL ORDERS
, APO and other orders requiring a Custom's form
:
Magnet orders can be shipped to many countries outside the US, however the buyer must confirm the INTERNATIONAL shipping charges by email
prior
to placing an eBay bid or agree to the following:
T
hese magnets are shipped to Canada or an APO via US PS 1st Class International for .00
and to most other countries for .00.
RETURNS:
100% satisfaction guarantee. A refund for your purchase price will be made in full upon return of the item in original condition within 30 days.
MAGNET CAUTIONS:
Please read before buying.
Seller assumes no responsibility for injury or damages caused by the rare earth magnets.
Use caution handling strong magnets. The neodymium magnets are brittle and can chip or break if they are allowed to smack together. The smacking of magnets can be avoided by sliding them apart as well as sliding them back together. These magnets are capable of pinching the skin. You must not get them too close to tapes, wind-up watches, credit cards, floppy discs, etc.; (3" is a safe distance). Neodymium magnets can cause permanent damage to TVs and other electronic equipment; (10" is a safe distance).
Anyone using a
pacemak
er
should consult a physician.
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