The innovative motor concept has all the advantages of direct drives such as high force density, high dynamic response, good control features and outstanding precision. As the secondary section track no longer has a permanent magnet, the 1FN6 is very inexpensive, especially in the case of long traversing distances.
The motor is therefore primarily used for applications in handling and linked axes or in highly dynamic and highly precise feeding axes of water-jet and laser-beam cutting machines. It is therefore an alternative to classic drive solutions with mechanical transmission elements such as gear racks or ball screws, as well as being an alternative to other types of motor such as asynchronous linear or reluctance motors. It is also ideal for applications in which a magnet-free secondary section track is essential.
In many applications in the machine tool area, long traversing distances have to be traveled quickly and precisely. Due to the costs of permanent magnets or in applications where it is difficult to protect the secondary section track against dirt, previous linear motor concepts could not be used or could only be used to a limited extent. The new 1FN8 linear motor is a synchronous linear motor developed by Siemens with a magnet-free secondary section track.
Volker M. Banholzer | Siemens Industry
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