Permanent Magnet VS Electromagnet

Permanent Magnet Manufacturer China Rare Earth Magnet Limited

Both Permanent Magnets and electromagnets can create different forms of magnetic fields. When choosing the magnetic circuit, you should first consider the purpose of this magnet. Under some circumstances of inconvenient power supply, usual power cut and unnecessary adjustment of magnet force，permanent magnet is preferred. However, when there is need for adjusting magnet force or using remote control, electromagnet is better. Magnets only can be used in the initially scheduled way. If you use wrong type of magnets for some special purposes, it can cause extreme or even fatal danger.

Many machining operations are processing on the heavy block materials during which permanent magnets are necessary. Many users of machinery factories think that the biggest advantage of these magnets is in no need of electrical connection.

Permanent magnet features lifting power of 330~10,000 pounds and can connect or disconnect the magnetic circuit only by rotating a hand shank. Magnet usually has security lock to make sure the magnet will not accidentally disconnect when being lifted. Magnet set can be used for purpose of relatively heavy and long load that a single magnet can't cope with.

Besides, most of the time, the parts we prepare for machining are very thin (0.25 inches or thinner) and we need to extract it from a pile of similar parts. Permanent magnet is not suitable for the work of extracting only one part from a pile of parts. Permanent magnet is dependable when used correctly, but its magnetic force can not be changed. In this respect, electromagnet, with variable voltage control device, enables operators to control magnet field strength as well as pick up one component from piles of parts. As the most economical magnet per unit lifting capacity, self-contained electromagnet can extend its lifting ability to 10500 pounds.

China Rare Earth Magnet Limited
Tags: Permanent Magnet, Electromagnet