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Sample Manipulation and Motion > Rotary Motion > Ferro-Magnetic Solid Shafts > 
CF Flanged Solid Shaft – KJLC Standard, Ferro-Magnetic Fluid Rotary Feedthroughs


CF Flanged Solid Shaft – KJLC Standard, Ferro-Magnetic Fluid Rotary Feedthroughs

Designed to provide rotary motion under high vacuum, these Ferro-Magnetic Fluid Sealed feedthroughs have ConFlat® compatible (CF) mounting flanges. Normal helium leak detectors capable of detecting 1 x 10-11 std cc/sec of Helium flow detect no leakage for CF mounts under static and dynamic testing. Our CF flanged rotary motion feedthroughs routinely operate in the 10-6 Torr range and, when properly prepared and installed, may be used to mid 10-10 Torr using ConFlat compatible (CF) Mounting Flanges.

Features

  • Use a special magnetic fluid (ferrofluid) in place of an o-ring seal around dynamic parts
  • Fluid hermetically seals the shaft, making a liquid o-ring while a permanent magnet keeps the fluid in place
  • Ferrofluid magnetically held in stages formed by grooves machined into either the shaft or pole pieces
  • Unlike regular o-rings, the ferrofluid o-ring remains intact for years of operation despite the shaft's motion

Applications

  • Rotary stages
  • Barrels
  • Platens
  • Planetaries
  • Web coater rollers used in thin film deposition and etching processes

Specifications Table

Mounting Water Cooling Shaft O.D.
1.33" CF
No
1/4"
2.75" CF
No
1/4"
2.75" CF
Yes
(1.07", 1.24")
1/4"
2.75" CF
No
3/8"
2.75" CF
Yes
(1.07", 1.24")
3/8"
2.75" CF
No
1/2"

Dimensional Drawings


Ordering Table

Model Dim
A
Dim
B
Dim
C
Dim
D
Dim
E
PartNo Price Add To
Cart
Model Dim
A
Dim
B
Dim
C
Dim
D
Dim
E
PartNo Price Add To
Cart
Standard (in.)
0.25"
0.75"
3.25"
1.75"
0.75"
KLFDCF025133 $830.00
Standard (in.)
0.25"
1.5"
4.06"
2.56"
0.75"
KLFDCF025275 $830.00
Standard (in.)
0.375"
1.5"
4.06"
2.56"
0.75"
KLFDCF037275 $910.00
Standard (in.)
0.375"
1.5"
4.56"
3.06"
0.75"
KLFDCF037275W $1,010.00
Standard (in.)
0.5"
2.375"
8.656"
4.906"
2.5"
KLFDCF050275 $1,095.00

NOTE: * Shaft mount measured 1" from process side face of feedthrough.

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