magnetics   South Africa

 for all

PERMANENT   MAGNETS *  

LEADING PERMANENT MAGNET SUPPLIERS

Rare Earth, Neodymium, Samarium Cobalt, Sintered & Polymer Bonded Ferrite, 

Cast & Sintered - Alnico  Magnets.

Plain & Coloured, Magnetic sheeting. Adhesive backed  Magnetic strip.

*All materials are sourced, wherever  possible, from licensed international sources

 

HOME
PRODUCTS
TECHNICAL
ABOUT US
FIND US
CONTACT

 

 

                  

 
 
 

In an attempt to promote local innovation, Sabel Magnetics cc, is prepared to assist local South African inventors in providing  a small number of magnets from currently held LOCAL stocks, at a discounted price.

We would also be prepared to discuss and assist, your own magnetic circuit designs within our own knowledge capability,  

Practical uses of and for  magnets in your invention is to be encouraged.

Your privacy is extremely important to us, and so we do undertake to never divulge, or use, any information that might be provided to any member of our staff, which might be considered by you, to be of a private nature.

We ask any person wishing to use this service to please state clearly that  their information is to be considered as "private and confidential" before entering into any discussions with us, and to place your name on our register..

Please do register your Full name, email address and contact telephone number, should you wish to use this service.

Register by email      INVENTOR REGISTRATION

                                                                               

 

 

IS there free energy in magnets?

The problem is, that energy is never free but always comes with a price.

 


You cannot create perpetual motion using magnets, and you cannot get out more energy than what was originally put in, and even then, there are always extra losses incurring.
In order to magnetize a magnet, energy needs to be put into it. This is done when a large current is pulsed through a coil in which the material to be magnetized sits. The result of this pulse of current, which contains a certain amount of energy that can be measured, is to enlarge the magnetic domains which are parallel with the magnetic field within the material being magnetized. What will cause the magnetic domains to shrink again? Three things:-

1. An increase in the temperature of the magnet.
2. An external demagnetising magnetic field.
3. Physically shaking or striking the magnet.


Each of these, as you can see, requires that energy be spent
(heat, magnetic field, motion). None of these allows for a way to capture energy released by the decrease in the overall magnetic field. ( Adiabatic cooling does capture some of the heat energy due to the overall magnetic domains becoming random, but it requires energy to be put into the material first.) Also, there are always energy losses in every circuit (in various forms of heat energy, sound energy, mechanical energy, chemical energy, electrical energy, etc).


A keyword often used by those who think they have found the secret to free energy is:

 "over-unity. "

What they mean by this is that the ratio of the energy output to the energy input is greater than 1 (more energy comes out than goes in).


It sounds great, but the physics is poor. When making energy measurements, there are a number of errors that can be made, often unwittingly, that falsely indicate over-unity is possible. In reality, it isn't. I have also heard of a scheme that changes some of the matter into energy (using E=mc^2) by actually taking the copper atoms and converting them into energy. If that inventor is able to accomplish this, great. But, this would not fall into the "over-unit" group of inventions. A sun or a star is good at doing this. They have the advantage of high pressures and high temperatures and large mass.

  
Here's are great Websites which explain what is often neglected by those proposing free energy devices:

http://www.physlink.com/Education/AskExperts/ae354.cfm 
for a discussion on how the energy of a magnet changes

http://www.lhup.edu/~dsimanek/museum/unwork.htm  for
discussions on perpetual motion machines
How much energy is actually stored in the permanent magnet's magnetic field?


 

 

 
 

 

OUR SALES DEPARTMENT CONTACT DETAILS
To ensure a prompt response to your enquiries, it is always prudent to initially telephone, or, should you email our sales office directly, always give details of sizes, material type and grade, quantities and the final use thereof, and your phone contact, especially should you require assistance on the type and grade of the magnet material to use.

EDSON:       ( ++ 27) 11 728 5315; mobile 073 574 0464; Skype: edsonnyathi

EBRAHIM:   ( ++ 27) 11 728 5315; mobile 079 911 4567; Skype: ebrahimp111

   Email:    sales@sabels.co.za : enquiries@sabels.co.za   

UNDERTAKING TO CUSTOMERS       We will ALWAYS endeavour to BEAT, or MATCH, any confirmed 

quotation, for the same size and grade specifications of magnet/s, obtained from a local South African competitor, in both the price, and delivery times.

 

 LINKS 

DIGITOLL
CHRISTIAN & JEWISH TOURS of the HOLY LAND
Web site analytics Web site analytics