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Free Oscillation Systems

Type AB-D

The AB-D offers a much higher loading capacity than the AB for the same compact design.

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The AB-D offers a much higher loading capacity than the AB for the same compact design. The linear spring deflection under load is still sufficient to assure for this oscillating unit the respectably low natural frequency of approx. 3.2 Hz. At a vibrator or wave frequency of approx. 16 Hz, this is sufficient for a high insulation efficiency of approx. 95%. As with all screening machine mountings from ROSTA, the characteristic of the AB-D assists the linear oscillation motion of the screen. No lateral guides are necessary for passing through resonance in a controlled manner; the mounting is laterally stable. This low-cost oscillating unit offers sufficient insulation for all plants that are not mounted on high screen platforms or steel structures "above ground".

The units are mounted by directly bolting the steel supports to screen and support structure.
The housings of the double rubber suspension units are of aluminium profile for sizes
AB-D 18 to AB-D 45, and in spheroidal graphite iron for the three sizes AB-D 50.

specifications & cad


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