Magnetic Drive Coupling

What is the magnetic coupling?
 
Magnetic coupling is a coupling that transfers torque from one shaft, but using a magnetic field rather than a physical mechanical connection.
Magnetic couplings are most often used for liquid pumps and propeller systems, since a static, physical barrier can be placed between the two shafts to separate the fluid from the motor operating in air. Magnetic couplings preclude the use of shaft seals, which eventually wear out and fail from the sliding of two surfaces against each another. Magnetic couplings are also used for ease of maintenance on systems that typically require precision alignment, when physical shaft couplings are used, since they allow a greater off axis error between the motor and driven shaft. 
 
What is the advantages of magnetic coupling?

1.Magnetic coupling for standard applications

2.Hermetically sealed

3.No contact of torque transmitting elements

4.No maintenance necessary

5.High efficient can optional

How does a magnetic coupling work?

The function of the coupling is to connect two shafts of different components together to transmit motion and power. Traditional couplings are all contact couplings. According to whether they have elastic parts inside, they can be divided into flexible couplings and rigid couplings. The interior of the elastic coupling has elastic parts made of metal springs or rubber plastics, so it has the function of buffering vibration absorption and the ability to adapt to the axis deviation. It is suitable for occasions subject to variable load impact and frequent starting and reversing. It is also suitable for applications where 2-axis cannot be strictly aligned. There is no elastic part in the rigid coupling, so there is no ability to absorb vibration.

 
The magnetic drive coupling is a non-contact coupling. It is generally composed of two magnets inside and outside, and the two magnets are separated by a spacer in the middle. The inner magnet is connected with the driven member, and the outer magnet is connected with the power member. In addition to the function of the elastic coupling buffering vibration absorption, the magnetic drive coupling has the greatest feature that it can completely enclose the inner magnet and the driven member, and in the absence of mechanical contact, the power member is coupled by magnetic coupling. Movement and power are transmitted to the driven parts. Therefore, he is widely used in chemical machinery and equipment, such as autoclaves and transfer pumps.
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