Ferrites

Inductotherm Heating & Welding has developed ferrite material that possesses higher magnetic permeability whilst offering the highest Curie temperature (200ºC), minimal core loss and high saturation flux density over a wide operating temperature range. These are just some of the reasons why a growing number of tube and pipe producers worldwide choose Thermatool ferrites in order to optimise the performance of their mills. Thermatool offers four different types of ferrites which can be cut to length, if required:

Tube Welding & Cutting Consumables Brochure

Fluted Ferrite (FF): The best all round ferrite offering a large mass of material with maximum cooling capacity due to its “fluted” design. This type of ferrite is ideal for use with through flow impedors.
Fluted Hollow Ferrite (FHF): The hollow centre permits this type of ferrite to be utilised where a mandrel is used or for return flow impedor applications. This type of ferrite is ideal for use with return flow impedors.
Hollow Ferrite (HF): This type of ferrite can be utilised where high numbers of ferrite rods are required, particularly where extra cooling capacity is needed.
Flat Sided Ferrite (FSF): Commonly used in larger impedors where high numbers of ferrite rods are required, thus reducing overall cost, however, cooling is not as efficient as that which can be achieved using fluted ferrites.