Ferrotec, Hollow Shaft Ferro-Magnetic Fluid Rotary Feedthroughs
O-Ring Flanged Hollow Shaft
These ferrofluid rotary feedthroughs are particularly useful for process development applications involving modified shaft details requiring supply of cooling, power, or instrumentation leads to the rotating part. Most models in this group of feedthroughs have o-ring grooved ANSI/ASA compatible flanges (alternate flange designs are listed with dimensions below).
Please note, a Deublin water union allows for external water connections, the water feed tubes rotate along with the feedthrough.
Cartridge Mount Hollow Shaft
Cartridge mounted ferrofluid rotary feedthroughs can replace existing vacuum shafts or spindles which use dynamic o-ring seals (defined as o-ring seals which press against a moving surface). Dynamic o-ring seals frequently cause leaks in processes using vacuum in a manufacturing environment. To remedy this, replace the shaft having the dynamic seal and select a cartridge feedthrough with an OD that slips inside the seal “well” in the process vacuum wall. The static o-ring seals on the cartridge’s grooved outer surface do not move, making them far less likely to leak than dynamic o-ring seals.
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
Ordering Table
| Description | Mount Type | Mount Size | Bearings | Shaft O.D. | Water Cooled | Face O-ring | Outer O-ring | Inner O-ring | Part Number | Price | In Stock | Add To Cart | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Description | Mount Type | Mount Size | Bearings | Shaft O.D. | Water Cooled | Face O-ring | Outer O-ring | Inner O-ring | Part Number | Price | In Stock | Add To Cart | |
|
F/T, |
Cartridge Mount | Cartridge | 6906/BS | Accepts 1.000"(+0" / -0.002") | — | — | O-V037 | O-V022 | FE103319 | $1,650.00 |
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F/T, |
Cartridge Mount | Cartridge | 6906/BS | Accepts 1.500"(+0" / -0.002") | — | — | O-V041 | O-V029 | FE103320 | $2,380.00 |
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F/T, |
Cartridge Mount | Cartridge | 6911/BS | Accepts 2.000"(+0" / -0.002") | — | — | O-V153 | O-V033 | FE103321 | P.O.R. |
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F/T, |
O-Ring Flanged | 7.00" Flange OD | 6909/BS | Accepts 1.500" (+0" / -0.002") |
Yes (0.55", 1.13") |
O-V244 | — | — | FE103354 | $3,085.00 |
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F/T, |
O-Ring Flanged | DN100CF (6.00" OD) | 6903/BS | Accepts 0.500" (+0" / -0.002") | No | O-V238 | — | — | FE103358 | $1,925.00 |
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F/T, |
O-Ring Flanged | 7.00" Flange OD | 6906/BS | Accepts 1.000" (+0" / -0.002") | No | O-V244 | — | — | FE103359 | P.O.R. |
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F/T, |
O-Ring Flanged | 7.00" Flange OD | Radial/BS | Accepts 1.500" (+0" / -0.002") | No | O-V262 | — | — | FE103360 | $2,625.00 |
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F/T, |
O-Ring Flanged | 7.00" Flange OD | 6911/BS | Accepts 2.000" (+0" / -0.002") | No | O-V244 | — | — | FE103361 | $3,165.00 |
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F/T, |
O-Ring Flanged | 7.00" Flange OD | 6911/BS | Accepts 2.000" (+0" / -0.002") |
Yes (0.62", 1.23") |
O-V244 | — | — | FE103921 | $3,500.00 |
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F/T, |
O-Ring Flanged | DN100CF (6.00" OD) | 6903/BS | Accepts 0.500" (+0" / -0.002") |
Yes (0.54", 1.15") |
O-V238 | — | — | FE105395 | $2,195.00 |
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F/T, |
O-Ring Flanged | DN200CF (10.00" OD) | Radial/BS | Accepts 3.000" (+0" / -0.002") |
Yes (1.635", 1.29") |
O-V262 | — | — | FE105397 | P.O.R. |
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F/T, |
O-Ring Flanged | DN160CF (8.00" OD) | 7012/BS | Accepts 1.500" (+0" / -0.002") |
Yes (0.44", 1.28") |
O-V256 | — | — | FE107428 | P.O.R. |
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F/T ROTARY, |
Cartridge Mount | Cartridge | 6903/BS | Accepts 0.500"(+0" / -0.002") | — | — | O-V032 | O-V014 | FE132405 | $1,425.00 |
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F/T, |
Cartridge Mount | Cartridge | Radial/BS | Accepts 3.000"(+0" / -0.002") | — | — | O-V159 | O-V151 | FE133759 | P.O.R. |
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NOTE: * Shaft mount measured 1" from process side face of feedthrough.