The ferrofluid sealing device adopts double-flange connection. When the drive shaft is inserted into the shaft sleeve, two O-rings inside the shaft sleeve press tightly against the drive shaft to form a static seal between them. The rotation of the drive shaft drives the shaft sleeve to rotate together, thus realizing vacuum sealing for the drive shaft. To prevent the shaft from slipping, the clamp at the tail end of the shaft sleeve shall lock the shaft tightly. It is suitable for vacuum sealing at medium and low rotating speeds under ambient temperature.

Hollow shaft (insertion type) shaft diameter: standard range from 10mm to 50mm, non-standard customization available.

Bearing configuration: standard (supported at both ends)

Water cooling: available.

Hollow shaft specifications of ZXF type. Customers can use their own prepared shafts, which provides design freedom. Bearing specifications for both ends are available.

• Notes
  (*1) These values apply when using general vacuum-grade ferrofluid (Type A). Values will differ when using corrosion-resistant (Type F) and low vapor pressure / corrosion-resistant (Type U) ferrofluid.
  (*2) Allowable speed when the shaft is under no load.
  (*3) Allowable speed under radial load.
  (*4) Refers to the maximum axial load when load is applied centrally to the ferrofluid seal shaft. Please contact us when the shaft bears axial load combined with other loads, or when the load deviates from the shaft center.
  (*5) Starting torque refers to the maximum load torque at the start of rotation. These are reference values, not guaranteed values. When selecting a motor, please use three times the indicated values as reference.