Wobble Sticks - Dual and Triple Action
The wobble stick is one of the simplest manipulation tools available, translating hand movements, with defined freedom, through a vacuum enclosure.
The wobbles stick series is based upon UHV Design’s PowerProbe technology, which provides high power linear and rotary motion through a magnetic coupling. The wobble stick range includes two series, the: -   
bullet WS series, for linear/rotary motion
bulletWST series, for linear/rotary motion + tilt

Above: WST-250-H with linear, rotary and tilt motion

Design concept
The UHV Design wobble stick is a modular concept. The basic ‘WS’ stick provides two degrees of freedom, rotation and linear push/pull.  By adding a bellows adaptor, the stick will also provide tilt, therefore offering three-axis of movement (WST series).
Magnetic Coupling
The wobble sticks benefit from the high strength and stiffness characteristics provided by all UHV Design’s magnetically coupled products.
The magnetic coupling eliminates the need for long bellows ‘stacks’, typically employed with conventional wobble stick designs. This reduces the risk of leaks and in doing so, improves reliability for sensitive applications.

Above: WST-250-H with linear and rotary motion, featured beside a US dollar bill

Dimensional Drawings
Click here to view dimensional drawings of the wobble sticks
Specification / Part Number WS-150-H WS-250-H WST-150-H WST-250-H
Linear travel 150mm 250mm 150mm 250mm
Linear break-away force 65N
Angular break-away torque 0.45Nm
Tilt N/A N/A +/-15°
Suggested maximum sample mass 260g
Maximum bakeout temperature 250°C
 

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