NFS Company

Korea (South)
  • Booth: C644

Thank you for visiting our company.

Our Magnetic seals, Mechanical seals, etc. are the core parts used in adavanced machinery, which are acknowledged by customers for their high performance and durability which exceed rival products. NFS has accomplished this by enhancing the price competitiveness od ths advanced products and providing quick delivery which is the result of its success in the localization of R&D by superior technical team.
Our extensive studies of numerous sites and their respective test data enable us to link the results to various applications. We offer durability and extended and service times in high-vacuum fields, high speed and high pressure fields. The quality and technical prowess of NFS is acknowledged by industry professionals.


  • Magnetic Fluid Seal
    When rotary movement is required within the vacuum chamber, the Magnetic Fluid Seal are used. (For rotary movement, if the Magnetic Fluid Seal moves in a straightforward manner, Metal Bellows maintain the vacuum state.)...

  • Magnetic fluid is composed of fine magnetic particles which are approx. 10nm and have specially-treated surfaces, which is cotained in a colloid state liqu. Fine particles mixed in the liquid do not settle but are evenly distributed within the liquid molecules. The magnetic fluid seal is result of applying such characteristics to the sealing technoloy. The magnetic fluid seals where magnetic flux is formed. this forms the liquidring caused by magnetic flux, materializing.

BEWARE - Special Warning Notice about ExpoGuide and FAIRGuide

With the ongoing solicitations, SEMI would like to continue to alert you with questionable professional practices perpetrated against exhibitors by (Austria) and Expo Guide (Mexico), Event Fair - The Exhibitors' Guide with their misleading directory services. There may be others that we are not aware of and are hence not named here. 

These companies provide legitimate exhibition guides aimed at exhibitors across the globe offering online listing services. They use a form which resembles and organizer's free catalogue listing service, inviting exhibitors to complete the form for an entry in an on-line directory. Unsuspecting exhibitors who sign and return the form are then contracted into a three-year, non-retractable agreement, which could cost the exhibitor a significant amount of money, with very limited foreseeable benefits. The details are often available on the form itself, but are often too small and insignificant to be noticed. It is always wise to really the small print before signing a contract, and if the information is impossible to read then the contract should not be signed. These publications have no connection with SEMI or any of our events, and it is important that all companies are made aware of this. 

Should you receive any communication from the Expo-Guide and or related company, please IGNORE THEM COMPLETELY and DO NOT COMMUNICATE WITH THEM IN ANY WAY.

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