Linear Feedthroughs

Accu-Glass Products' precision HTL series linear motion feedthroughs are designed to operate at temperatures as high as 250°C.  Linear movement is measured in 0.001 inch increments on rotary barrel scale and 0.025 inch increments on the linear body scale, which are laser etched into the black anodized aluminum finish.  They are constructed of aluminum and stainless steel, where only stainless steel surfaces are exposed to the vacuum environment.

In-vacuum bearings are film lubricated with UHV compatible Krytox® lubricant, while air side bearings are lubricated with high-temperature Krytox® lubricant.  The linear shaft is sealed with an AM-350 edge-welded bellows.

Linear feedthroughs are available on Conflat® style CF metal seal of 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
Linear Motion Feedthroughs
Image Callout
Speed-Handle Manual Adapter Option
105
218
HTL-275-1, Manual 1-Inch Linear Travel Feedthrough
192
89
HTL-K16-4, Step Motor 4-Inch Linear Travel Feedthrough
441
128
HTL-133-2, Motorized 2-Inch Linear Travel Feedthrough
132
442
.025 Inch Linear Scale Resolution
320
331
.001 Inch Rotary Scale Resolution
397
294
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Precision Linear Feedthroughs

Accu-Glass Products' precision HTL series linear motion feedthroughs are designed to operate at temperatures as high as 250°C.  Linear movement is measured in 0.001 inch increments on rotary barrel scale and 0.025 inch increments on the linear body scale, which are laser etched into the black anodized aluminum finish.  They are constructed of aluminum and stainless steel, where only stainless steel surfaces are exposed to the vacuum environment.

In-vacuum bearings are film lubricated with UHV compatible Krytox® lubricant, while air side bearings are lubricated with high-temperature Krytox® lubricant.  The linear shaft is sealed with an AM-350 edge-welded bellows.

Linear vacuum feedthroughs are available on Conflat® style CF metal seal of ISO-KF style elastomer seal flanges.

Stepper motor and pneumatic actuator options are available here...

Right Column Content
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Features

  • Precision bearings guides — no bushings
  • 1, 2 and 4 inch linear travel
  • High temperature rated to 250°C
  • UHV compatible construction
  • Conflat® and ISO compatible mounts
  • Edge-welded metal bellows seal
  • Manual actuators
  • Linear travel position lock
  • Optional AC or DC motor actuators

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, Maximum5 lb
Lateral, Maximum 25 lb
Resolution 3 
Linear Scale.025 Inch
Rotary Scale.001 Inch
Motorization Options 4 
DC Step MotorOption-11
DC Step Motor HTOption-12
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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