IEF-Werner has developed the positioning units with spindle drive of the profiLINE series to combine the positive properties of a linear axis and a precision slide. With these linear units, the spindle nut converts the rotary movement into a linear movement. Linear axes with spindle drive enable high feed forces and can therefore also move heavy loads over travel distances of up to 1.5 metres at low to medium speeds. They also offer high posi-tioning and repeat accuracy. Compared to axes with toothed belt or direct drives, spindle axes have an advantage up to a certain length. Combined with a large number of standardised as-sembly elements and in conjunction with other linear units from IEF-Werner, complex, multi-axis positioning systems can also be set up. Thomas Hettich, head of the linear axes product area at IEF-Werner: “The spindle drives are used in handling technology, factory automation, plant construction, palletisers and mechanical engineering in general.

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