Wobble Stick Feedthroughs

Wobble Sticks Mounted on ISO or CF Flanges

Wobble stick feedthroughs offer an economical method of providing both angular and linear movement.

The position of the wobble stick must be manually held by the operator or customer provided position lock. Under vacuum load the bellows are compressed and the shaft is completely extended into the vacuum chamber, unless restrained.

The two models offered are capable of 44° (0.5 inch linear) and 60° (1 inch linear) of angular motion respectively. However, when mounted on a typical necked port, the angular motion can be reduced to 20° and 30° respectively.

Feedthroughs are available on Conflat® style CF metal seal or ISO-KF style elastomer seal flanges.

Section (Layout)
Left Column Content
Callout Image
wobble-stick feedthroughs
Image Callout
Ultrahigh CF and High Vacuum ISO NW Mount types
217
169
Edge-Welded Bellows Seal
288
166
.125 and .250 Inch Shaft Diameters
412
161
.50 and 1 Inch linear travel / 44° to 60° arc motion
252
334
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Wobble Stick, Linear-Angular Travel

Wobble stick feedthroughs offer an economical method of providing both angular and linear movement. Position of the wobble stick must be manually held by the operator or customer provided position lock. Under vacuum load the bellows are compressed and the shaft is completely extended into the vacuum chamber, unless restrained. The two models offered are capable of 44° (0.5-inch linear) and 60° (1-inch linear) of angular motion, respectively. However, when mounted on a typical necked port, the angular motion can be reduced to 20° and 30° respectively. Feedthroughs are available on Conflat® style CF metal seal or ISO-KF style elastomer seal flanges.

Right Column Content
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Features

  • 1/2 Inch / 44° linear-angular travel
  • 1 inch / 60° linear-angular travel
  • UHV compatible construction
  • Leak tight to 2 x 10-10 Std cc/sec Helium
  • Conflat® and ISO compatible mounts
  • Manual actuation
  • Edge-welded bellows seal
  • Custom solutions on request

Specifications

Material 
Body, Stainless Steel304
Bellows, Edge-WeldedAM-350
Vacuum Range 
UHV, Ultrahigh vacuum1x10E-10 Torr
HV, High vacuum1x10E-8 Torr
Temperature Range 1 
Feedthrough250°C
Flange, Conflat®450°C
Flange, ISO150°C
Load 
Axial, Maximum5 lb
Lateral, Maximum 25 lb
Resolution 
Linear/Angular ScalesNone
Notes 
  1. Overall assembly ratings must be adjusted to that of its lowest rated component. For cryogenic service, the lowest recommended temperature is -80°C
  2. With load positioned 2-Inches from flange sealing face
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