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Single Shaft Wobblestick Manipulators


Since 1996, Ferrovac magnetically driven wobblestick manipulators define the benchmark for delicate and precise manipulations in ultra high vacuum systems.

Due to the principle of magnetic force coupling, the motion of the shaft is not affected by the difference between atmospheric pressure and ultra high vacuum. The operator can guide the shaft of the wobblestick  nearly force-free in a smooth and controlled way.

Magnetic coupling also minimizes the risk for leaks and ensure longer lifetimes compared to conventional wobble sticks employed with long bellows stacks for linear motion.

Magnetically driven wobblestick manipulators always allow for continuous rotation of the shaft.

  • Standard stroke range: 100-300mm in 50mm incrementsWM40-GRABSHOM-TSWM
  • Customized strokes up to 700mm
  • +-20° angular deflection (note: WA-models +-28°)
  • High coupling force, linear: 30N, torque 0.5Nm (note: HT-models 60N/1Nm)
  • Bakeout temperature up to 200°C including magnet
  • Pressure range 1E-11 to 1000 mbar (hPa)
  • Low outgassing during movement

Most ordered configuration: WM40-XXXX-0080-GRABSHOM-TSWM
Single shaft wobblestick with grabber  for flag style plates and tube support rail


Ferrovac AG | Thurgauerstrasse 72 | CH-8050 Zürich | | link? | TEL +41 44 273 16 38 | FAX +41 44 273 16 30
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