The difference between permanent magnet suction cup and electromagnetic suction cup

Permanent magnet suction cup, also known as magnetic chuck, is a magnetic fixture widely used in mechanical processing fields such as machinery factories and mold factories, which can greatly improve the clamping efficiency of steel materials in terms of magnetic permeability. Electromagnetic suction cup is an electromagnetic fixture that uses the suction force generated by the suction cup after the electromagnetic coil is energized to fix the workpiece. What is the difference between them?

Permanent magnet suction cups are made of permanent magnets rather than electromagnets. The magnetic block is composed of several magnets, brass plates, and pure iron plates, connected together by brass screws, and connected to the handle through a connecting rod and eccentric shaft. Pull the handle to move the magnetic block left and right to the working position and unloading position.

Electromagnetic suction cups are manufactured based on the principle of the magnetic effect of electricity. Many horseshoe shaped electromagnets are wound around a coil and placed in a closed electromagnetic suction cup. The cover plate of the working face is separated from the electromagnet by brass or lead tin alloy.

Thus becoming an electromagnetic suction cup that can be made into squares and circles, using direct current. After being energized, the horseshoe shaped magnet is magnetized, generating an electromagnetic field that attracts workpieces with good magnetic permeability. After turning off the power, the magnetic effect is interrupted and the workpiece can be unloaded.

Both permanent magnet suction cups and electromagnetic suction cups use magnetic fields to attract workpieces with magnetic permeability energy. However, if used for too long, the magnetic force will weaken and needs to be re magnetized. At present, with the continuous expansion of people's production activities, in order to improve production efficiency, permanent magnet suction cups and electromagnetic suction cups are increasingly developing towards high speed and automation.

The above is the difference between permanent magnet suction cups and electromagnetic suction cups. With the development of industrialization, the demand for permanent magnet suction cups in China is still growing, but the technology has always lagged behind foreign countries. We will continue to innovate to improve productivity.