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Cartridge Mount O-Ring Flange Mount O-Ring Flange Mount

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

Ferrofluid Sealed Drive
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Ordering Table

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
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
Cartridge Mount Cartridge 6906/BS Accepts 1.000"(+0" / -0.002") - - O-V037 O-V022 FE103319 $1,570.00 In Stock
Cartridge Mount Cartridge 6906/BS Accepts 1.500"(+0" / -0.002") - - O-V041 O-V029 FE103320 $2,265.00 In Stock
Cartridge Mount Cartridge 6911/BS Accepts 2.000"(+0" / -0.002") - - O-V153 O-V033 FE103321 P.O.R. Contact KJLC for Availability
O-Ring Flanged 7.00" Flange OD 6909/BS Accepts 1.500" (+0" / -0.002") Yes
(0.55", 1.13")
O-V244 - - FE103354 $2,935.00 Contact KJLC for Availability
O-Ring Flanged DN100CF (6.00" OD) 6903/BS Accepts 0.500" (+0" / -0.002") No O-V238 - - FE103358 $1,830.00 Contact KJLC for Availability
O-Ring Flanged 7.00" Flange OD 6906/BS Accepts 1.000" (+0" / -0.002") No O-V244 - - FE103359 P.O.R. Contact KJLC for Availability
O-Ring Flanged 7.00" Flange OD Radial/BS Accepts 1.500" (+0" / -0.002") No O-V262 - - FE103360 $2,500.00 Contact KJLC for Availability
O-Ring Flanged 7.00" Flange OD 6911/BS Accepts 2.000" (+0" / -0.002") No O-V244 - - FE103361 $3,010.00 Contact KJLC for Availability
O-Ring Flanged 7.00" Flange OD 6911/BS Accepts 2.000" (+0" / -0.002") Yes
(0.62", 1.23")
O-V244 - - FE103921 $3,335.00 Contact KJLC for Availability
O-Ring Flanged DN100CF (6.00" OD) 6903/BS Accepts 0.500" (+0" / -0.002") Yes
(0.54", 1.15")
O-V238 - - FE105395 $2,095.00 Contact KJLC for Availability
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. Contact KJLC for Availability
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. Contact KJLC for Availability
Cartridge Mount Cartridge 6903/BS Accepts 0.500"(+0" / -0.002") - - O-V032 O-V014 FE132405 $1,355.00 Contact KJLC for Availability
Cartridge Mount Cartridge Radial/BS Accepts 3.000"(+0" / -0.002") - - O-V159 O-V151 FE133759 P.O.R. Contact KJLC for Availability

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

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