1 product name: magnetic fluid shaft seal apparatus for film coating seal 

2 usages: high vacuum switches seal

3 characteristics:

A, Long life: There is no contacting between the seals and shaft

B, Non-leakage (Pa.m3/sec): Little than 10-12

C, High vacuum degree (Pa): 10-6

D, Fit for different revolving speed: The magnetic fluid keeps steady at high revolving speed

E, Good capability of pressure resistance: about 0.025Map

F, The best mode of transmission: This is a fluid-solid mode, there is no loss, so the whole power goes into transmission mode.

4 specifications:

5 sealing principle:

Magnetic Fluid Sealing technology is realized by the characteristics of Magnetic Fluid in respond to the magnetic field. When Magnetic Fluid is poured into high performance permanent-magnets, in the clearance formed by the pole shoe and the polar axis that is a good flux guide, the magnetic fluid creates several fluid “o” rings activated by the magnetic field. And that is the principle of sealing of magnetic fluid.