Vacuum Rotary Feedthroughs

Accu-Glass Products' high-torque HTR series rotary motion feedthroughs are designed to operate at temperatures as high as 250°C and rotational torque up to 250 in-oz.

They are constructed of black-anodized aluminum and stainless steel, where only stainless steel surfaces are exposed to the vacuum environment.

In-vacuum bearings are dry-lubricated with tungsten-disulfide, while air side bearings are lubricated with high-temperature Krytox® lubricant.  The rotation shaft is sealed with an AM-350 edge-welded bellows.

Feedthrough rotation can be monitored via a 360° / 5° increment laser-etched scale found on the manual actuator knob.  Rotary feedthroughs are available on Conflat® style CF metal seal or ISO-KF style elastomer seal flanges.

Stepper motor and Pneumatic Actuator options are also available via the links below.

Section (Layout)
Left Column Content
Callout Image
Rotary Motion Feedthroughs
Image Callout
HTR-133 Precision CF Rotary Feedthrough
145
201
HTR-K40 Precision ISO NW Rotary Feedthrough
248
66
ORR-1/4-133 CF Rotary Feedthrough
350
223
ORR-1/4-K16-ES ISO NW Rotary Feedthrough w/Airside Shaft Extension
271
431
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Vacuum Rotary Feedthroughs

Accu-Glass Products' high-torque HTR series rotary motion feedthroughs are designed to operate at temperatures as high as 250°C and rotational torque up to 250 in-oz.

They are constructed of black-anodized aluminum and stainless steel, where only stainless steel surfaces are exposed to the vacuum environment.

In-vacuum bearings are dry-lubricated with tungsten-disulfide, while air side bearings are lubricated with high-temperature Krytox® lubricant.  The rotation shaft is sealed with an AM-350 edge-welded bellows.

Feedthrough rotation can be monitored via a 360° / 5° increment laser-etched scale found on the manual actuator knob.  Rotary feedthroughs are available on Conflat® style CF metal seal or ISO-KF style elastomer seal flanges.

Stepper motor and Pneumatic Actuator options are also available via the links below.

Right Column Content
Text

Features

  • Precision bearings — no bushings
  • Improved shaft coupling design for high torque, rated to 250 in-oz
  • High temperature rated to 250°C
  • UHV compatible construction
  • Conflat® and ISO compatible mounts
  • Edge-welded metal bellows seal
  • Manual actuators
  • Continuous 360° rotary motion
  • Rotary travel position lock
  • Optional AC or DC motor actuators
  • Custom solutions on request

Specifications

Material 
Body, Stainless Steel304
Housing, Anodized Aluminum2011
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, Maximum6 lb
Lateral, Maximum 210 lb
Resolution 3 
Rotary Scale5°
Motorization Options 4 
DC Step MotorOption-11
DC Step Motor HTOption-12
AC Geared MotorOption-21
Pneumatic, 90°Option-31
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
  3. See detailed motor specifications for various Step motor resolutions
  4. To see detailed specifications for each motor option, click the specific 'motorization option tile' above.
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