KTR-MINEX-S 磁気カップリング

磁気カップリング,マグネットカップリング,磁性聯軸器

Contactless torque transmission with permanent magnets

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MINEX® 磁気カップリング

KTR-MINEX-S
磁性聯軸器 KTR-MINEX-S
磁性聯軸器 KTR-MINEX-S
產品資訊
產品資訊

Product features

  • Contactless torque transmission with permanent magnets
  • Hermetic separation of the driving and driven side
  • Resistant to aggressive media
  • Torque from 0.15 to 1,000 Nm
  • Optionally API 685
  • Frequently used in vacuum and fluid pumps

The MINEX®-S is a permanent-magnetic synchronous coupling that transmits torque through magnetic forces between the internal and the external rotor. It ensures a hermetic separation of the drive and the driven side in its main function as sealing element in pumps and agitators. For critical media like aggressive acids etc. it serves as a reliable seal and prevents serious leakages occurring.

Fonctionnement

The coupling consists of an external and an internal rotor. The external rotor has high-quality, permanent magnets of changing polarity on the inner side and the internal rotor has them on the outside. The external rotor is normally fixed on the drive side and the magnets are glued in the keyways. The magnets of the driven-sided internal rotor are cylindrically ground to ensure a minimal air gap and encapsulated through a magnetic cover that is impervious to fluids.In their non-operative states the north and south poles of the rotors are opposite to each other and the magnetic field is completely symmetric. It is only when the rotors are twisted that the magnetic field lines are moved, hence the torque is transmitted through the air gap. Then there is a synchronous operation under a constant torsion angle.If the maximum coupling torque and the maximum torsion angle are exceeded, the power transmission is interrupted. Thus the MINEX®-S offers an overload protection function of the drive train. After removing the cause of the overload (e. g. damage to the bearing, blocking of the internal rotor) both rotors can be synchronised again and operation is resumed.

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