Feedthroughs
 
 
Inch-based models
Products
Shaft types
 

Magnetic fluid (ferrofluid) fills a small annular gap between a rotating shaft and a stationary magnetic pole piece. The gap is part of a high-energy magnetic circuit which includes the shaft and pole piece. The very large magnetic flux in the gap exerts a force on the fluid, holding it in place against pressure difference from atmosphere to vacuum, yielding a dynamic rotary seal in which there is no solid friction. Therefore, very long operating lifetimes are achieved.

Because the magnetic fluid has very low vapor pressure, it remains permanently in place for the entire lifetime of the seal, and does not contaminate the system. Some applications have special requirements (high temperature, highly reactive gases) which can be satisfied by selection of the optimum fluid from our family of fluid materials.

 
Home > Products > Vacuum products > Inch-based models > Hollow shaft, water cooled
 

FD (inch) series: Water-cooled hollow shaft rotary feedthroughs

Magnetic fluid sealing for high vacuum and other critical process applications

Ferrofluidics direct replacements


FD-F1-HS-W Style: Hollow shaft, flange mount, water cooled

Nominal ID 0.5 1.0 1.5 2.0 3.0
Recommended 0.501/0.498 1.001/0.998 1.501/1.498 2.001/1.998 3.001/2.998
Product No.
Model
10C-8927-A
FD-F1-HS-
0500-W-C
10C-8927-B
FD-F1-HS-
1000-W-C
10C-8927-C
FD-F1-HS-
1500-W-C
10C-8927-D
FD-F1-HS-
2000-W-C
10C-8927-E
FD-F1-HS-
3000-W-C
Max RPM 6000 4500 3000 2500 1800
A (inch)
B (inch)
(hole pattern)
0.502/0.503
6.00
(4) x 0.75 dia
on 4.750 B.C.
1.002/1.003
7.00
(4) x 0.75 dia
on 5.500 B.C.
1.502/1.503
7.00
(4) x 0.75 dia
on 5.500 B.C.
2.002/2.003
7.00
(4) x 0.75 dia
on 5.500 B.C.
3.002/3.003
10.000
(8) x 0.87 dia
on 8.500 B.C.
C (inch)
D (inch)
E (inch)
F (inch)
G (inch)
2.75
3.215
0.03
0.38
2.75
2.75
3.339
0.03
0.38
3.00
3.00
3.65
0.03
0.38
3.75
3.25
3.966
0.03
0.38
4.18
3.87
4.717
0.03
0.62
5.87
H (O-ring)
J (O-ring)
2-238
2-014
2-244
2-022
2-244
2-029
2-244
2-033
2-262
2-151
M (2 places) Fitting for 0.25" OD tube
FFC Part No.
FFC model no.
50A105395
SC-500-FWC
50A105396
SC-1000-FWC
50A105354
SC-1500-FWC
50A103921
SC-2000-FWC
50A105397
SC-3000-FWC


To select a feedthrough for a new application, locate the table for the appropriate shaft mounting style (through-hole, flanged, or bore mount). Dimensional and performance information is tabulated and keyed to an outline drawing.

To identify the Magnaseal direct replacement for a Ferrofluidics Corp. product, locate the FFC Part Number/Model Number at the bottom of each column of tabulated data. For FFC products not listed, or for application engineering assistance or information beyond the scope of the tabulated data, please contact Rigaku Vacuum Products.