MOTION FEEDTHROUGHS FOR
ULTRA HIGH VACUUM SYSTEMS


These motion feedthroughs are extensively used in all the ultra high vacuum based analytical instruments for imparting various motions required for loading, transportation and manipulation of samples, inside the vacuum region.  

Technical Specifications

Sr. No. Description Linear Motion Rotary Motion Differential Linear Motion Rotary-Linear Motion
1 Sealing Mech. S. S. Bellows S. S. Bellows S. S. Bellows S. S. Bellows
2 Flange CF 70 CF 70 CF 70 CF 70
3 Actuating medium Calibrated thimble Calibrated thimble Calibrated thimble on each stage Calibrated thimble & Vernier
4 Compatibility for motorised operation Compatible Compatible Compatible Rotary stage Compatible
5 Position Lock Thumb screw Thumb screw Thumb screw Thumb screw (for rotary)
6 Shaft Run-Out NA 0.1mm TIR NA 0.1mm TIR
7 Resolution 0.02 mm 0.1° 0.02 mm on each stage 0.1° and 0.02 mm
   Linear Motion Feedthrough

Atm

 Transmission of Rotary motion from Atmosphere (atm) to Linear motion into Ultra High Vacuum (UHV) System.

UHV
Rotary Motion Feedthrough

Atm

 Transmission of Rotary motion from atm. to Rotary motion into Ultra High Vacuum (UHV) System.

UHV
Differential Linear Motion Feedthrough

Atm

 Two stage device transmits rotary motion from atmosphere to very fine linear motion to two concentric shafts into UHV system.

Differential motion is obtained by turning the either stage, which is assembled in serie
 

UHV
Rotary-Linear Motion Feedthrough
Rotary and Linear motions are independently transmitted.

Linear movement transmission through Vernier head.

Rotary movement transmission through thimble head.

   For details contact : 
   

    Head, Technology Transfer & Collaboration Division, 
    BHABHA ATOMIC RESEARCH CENTRE, 
    TROMBAY, MUMBAI - 400 085
    Tel : 091-022-25505337/25593897
    Fax : 091-022-25505151 
    Email : headttcd@barc.gov.in