Thermionics manufactures a full line of metal-sealed, all metal, linear-rotary motion feedthroughs, using welded bellows and stainless steel linear bearings.  Manual units are bakeable to 200°C fully assembled with higher bakeouts available with partial disassembly.

Precision Linear-Rotary

The FRLC series utilized a micrometer to provide precision linear motion input and rotary input with 1° graduates and 0.1° resolution. 

Magnetically Coupled Linear-Rotary

The FLLRE series magnetically coupled feedthrough offers exceptional linear-rotary motion for sample introduction and transfer. The small magnetic driver package provides more than 150 oz-in torque and four lbs of linear force. 

Magnetically Coupled Precision Linear-Rotary Drives

The MCLR Series linear-rotary feedthrough offers precise and smooth rotary motion for sample introduction and transfer utilizing a 3/4" linear support tube and a rotary bearing in the tip to guide the 1/4" rotary probe. 

Rack & Pinion Linear-Rotary

The RPLR series of linear-rotary feedthroughs uses a 3/4" diameter probe actuated by a rack and pinion positive drive.  The independent rotary actuation is achieved by a second rotary feedthrough.  

Push-Pull Linear-Rotary

The FLRM series of linear-rotary feedthroughs provide linear motion is push-pull against the pressure differential (12 lbs. maximum) and an FRM-133-25 rotary feedthrough mounted on the axis of the 1/2" tube.

High-Vacuum Push-Pull Linear-Rotary

Thermionics High-Vacuum Push-Pull Linear-Rotary Feedthrough provides a cost effective solution for applications not requiring Ultra High Vacuum (UHV) specifications.

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