Arcos Hydraulik AB

Twice as powerful


Pneumatic doctor oscillator for wire and press section manufactured in acid-proof steel. Connected with just one air hose. Long life span, reliable, no engine that wears down and no maintenance are some of the characteristics for S-520.


The oscillator is mainly an acid-proof steel cylinder. The valve controlling the oscillating functions mounted in the cap, sealed from water by an acid-proof casting. The speed for the in- and out movement is easily adjusted with a screw situated under a plug in the casing.

  • Adjustable speed 3-20 strokes/min. Traction force 11500N. Stroke length 16 mm.

  • S-520 is designed especially for oscillation of doctors in, for example, wire and press section.

  • S-520 is designed so that it can replace Valmet´s existing oscillators without any other fastening devices.

  • S-520 moves smoothly and has variable speed transmission.

  • S-520 connects with a hose to a compressed air system with clean air.

  • Cylinder diameter 160mm.

  • Recommended pneumatic pressure: 6 bar.

  • Pulling force at 6 bar: 1100 kg.

  • Temperature: max 150°C

  • Stroke length: specified when ordered (16mm standard).


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Teknikergatan 5
SE-781 70 Borlänge

Phone +46 (0)243 - 820 75
Fax +46 (0)243 - 102 82