Frequently Asked Questions
For a more technical treatment of these issues, please see our Design Guide
Site Directory ----------------- About Us Pictures ----------------- Products • NdFeB • SmCo • Ferrite • Alnico • Flexible • Custom • System Level • Other ----------------- Design • Magnet Design • Tools • Engineering ----------------- Quality ----------------- Support • FAQs • Glossary ----------------- Catalogs ----------------- Info Request ----------------- Contact ----------------- Site Map
What does a magnet do?
What are magnets made of?
How are magnets made?
Magnet Power
How permanent is a magnet's strength?
Do magnets lose their strength over time?
What might effect a magnet's strength?
How does a magnet's strength drop off with distance?
What is the equation for field strength relative to distance?
Can a magnet that has lost its strength be re-magnetized?
Can I make a magnet that I already have any stronger?
Measuring Strength
How do you measure the strength or power of a magnet?
If I have a Neo magnet with a Br of 12,300 Gauss, should I be able to measure 12,300 Gauss on its surface?
Magnetic Poles
What are "magnetic poles"?
What are the standard industry definitions of "North" and "South" poles?
Can a particular pole be identified?
How can you tell which is the "North" pole if it is not marked?
Magnet Materials
What are the different types of magnets available?
What are Rare Earth magnets?
Which are the strongest magnets?
Magnetic Properties
What does "orientation direction" mean?
How are magnets rated?
What are the properties of commonly used magnet materials?
How can I use this information?
Magnetic Assemblies
What is a magnetic assembly?
How should I assemble magnets to my device?
Magnets and Temperature
What is the maximum recommended operating temperature for different magnet materials?
Why is the maximum temperature a magnet can operate at not a set value?
Machining Magnets
Can I machine magnets?
How much does it cost to machine magnets?
Handling Magnets
What can I use to "block" a magnetic field?
Tips on handling and storing magnets
Other Questions
What are eddy currents?
What are some good magnet reference books?
What do magnets cost?
Are there Industry Standards for magnets?
How do I order magnets?