Ferromagnetic Feedthrough
Magnetic feedthrough is the ideal way to transfer rotational motion from atmosphere to vacuum or overpressure environment. Benefits are friction-less motion, high torque transmission, high speed (>10,000 rpm) capability, low drag torque, smooth motion and no particle generation withstand process operation without degrading.
- Common use of ferro feedthrough are:
- Cost effective replacement of O-ring rotary feedthrough
- Sample handling, position and Robotics
- Substrate rotation in vacuum chamber
- Agitate fluid under vacuum
- Damper for vibration-free application
- Hermetic seal for clean environment
Our Product range includes standard and special feedthroughs. We also supply retrofits of conventional feedthroughs of other manufacturers.
We specialize in customized design to optimize performance at competitive price
| Standard Specification: | Specification for CF flange |
| Leak rate: 1 x 10-9 std. cc/sec, He | Leak rate: 1x10-11 std cc/sec, He |
| Vacuum range: 8 x 10-7 Torr | Vacuum range: 5x10-10 Torr |
| Max. operation pressure: 28 psi | |
| Bearing lubrication: Fomblin / Krytox |
| Standard ferrofluid | Reactive gas ferrofluid |
| Base oil: Hydrocarbon | Base oil: Perfluorinated Polyether |
| Max. operation temperature: 0-80 °C | Max. operation temperature: 0-90 °C |
Standard Feedthrough
Part Number system
| S | F | N | Shaft size | Cooling | Bearing | Mounting |
| S= solid shaft | F= flange | N= non-active | 025= 0.25" | W= water cooling | N= ordinary | C133=CF1.33 |
| H= hollow shaft | B= base plate | A= active | 100= 1.00" | N= no cooling | H= overload | C275=CF2.75 |
| T= thread | C= cantilever | O6=6" flange w/o-ring | ||||
| C= cartridge | O= special | O7=7" flange w/o-ring | ||||
| 516= 5/16-24 thread | ||||||
| 716= 7/16-20 thread | ||||||
| 100= 1" mtg plate |
| Solid Shaft - CF Flange |
| VPC P/N | a (inch) | b (inch) | c (inch) | d (inch) | e (inch) | Price |
| SFN025NN-C133 | 0.250 | 0.750 | 3.250 | 1.750 | 0.750 | $747.00 |
| SFN025NN-C275 | 0.250 | 1.500 | 4.060 | 2.560 | 0.750 | $747.00 |
| SFN025WN-C275 | 0.250 | 1.500 | 4.060 | 2.560 | 0.750 | $1,413.00 |
| SFN038NN-C275 | 0.375 | 1.500 | 4.060 | 2.560 | 0.750 | $819.00 |
| SFN038WN-C275 | 0.375 | 1.500 | 4.560 | 3.060 | 0.750 | $864.00 |
| SFN050NN-C275 | 0.500 | 2.375 | 8.656 | 4.906 | 2.500 | $986.00 |
| Solid Shaft - O-Ring |
| VPC P/N | a (inch) | b (inch) | c (inch) | d (inch) | e (inch) | B.C. | O-R face seal |
Price |
| SFN050NN-O6 | 0.50 | 2.87 | 6.03 | 3.56 | 1.22 | 4.75 x 4 | V234 | $1,188.00 |
| SFN050WN-O6 | 0.50 | 2.87 | 6.03 | 3.56 | 1.22 | 4.75 x 4 | V234 | $1,359.00 |
| SFN050WN-O7 | 0.50 | 5.00 | 16.32 | 6.00 | 4.32 | 6.00 x 6 | V351 | $2,016.00 |
| SFN075WN-05 | 0.75 | 3.00 | 9.39 | 4.88 | 1.84 | 6.00 x 6 | V337 | $3,258.00 |
| SFN075NN-06 | 0.75 | 2.87 | 6.03 | 3.56 | 1.25 | 4.75 x 4 | V234 | $2,039.00 |
| SFN100WN-06 | 1.00 | 4.00 | 12.625 | 5.38 | 3.00 | 5.00 x 6 | V340 | $2,376.00 |
| Solid Shaft - Thread Mount |
| VPC P/N | a (inch) | b (inch) | c (inch) | d (inch) | e (inch) | B.C. | O-R face seal |
Price |
| STN019NN-516 | 0.187 | 0.63 | 2.562 | 1.58 | 0.482 | 0.28 | V012 | $563.00 |
| STN025NN-716 | 0.25 | 0.75 | 3.437 | 1.937 | 0.75 | 0.375 | V015 | $639.00 |
| STN050NN-114 | 0.5 | 2.87 | 8.812 | 5.072 | 1.25 | 1.51 | V128 | $846.00 |
| STN050WN-114 | 0.5 | 2.87 | 8.812 | 5.072 | 1.25 | 1.51 | V128 | $1,170.00 |
| STN075NN-114 | 0.75 | 2.87 | 8.812 | 5.072 | 1.25 | 1.51 | V128 | $1,116.00 |
| STN075WN-114 | 0.75 | 2.87 | 8.812 | 5.072 | 1.25 | 1.51 | V128 | $1,278.00 |
| Solid Shaft - Baseplate Mount |
| VPC P/N | a (inch) | b (inch) | c (inch) | d (inch) | e (inch) | B.C. | O-R face seal |
Price |
| SBN025NN-100 | 0.25 | 1.625 | 3.44 | 1.93 | 0.75 | 1.68 | V026 | $639.00 |
| SBN025NN-100e (inch) | 0.25 | 1.618 | 3.12 | 1.62 | 0.75 | 1.37 | V026 | $605.00 |
| SBN025NN-150 | 0.25 | 2.12 | 3.97 | 2.47 | 0.75 | 2.22 | V132 | $743.00 |
| SBN025NN-075 | 0.25 | 1.625 | 3.44 | 1.93 | 0.75 | 1.68 | V026 | $639.00 |
| SBN038NN-100 | 0.375 | 1.62 | 3.39 | 1.65 | 0.865 | 1.30 | V026 | $675.00 |
| SBN038NN-150 | 0.375 | 2.12 | 3.97 | 2.47 | 0.75 | 2.22 | V132 | $747.00 |
| Hollow Shaft - Cartridge Mount |
| VPC P/N | a (inch) | b (inch) | c (inch) | d (inch) | e (inch) | f (inch) | O-R OUTER |
O-R INNER |
Price |
| HCN050NN | 0.5025 | 1.9975 | 3.215 | 2.75 | 0.375 | 1.25 | V032 | V014 | $1,220.00 |
| HCN100NN | 1.0025 | 2.6225 | 3.339 | 2.75 | 0.50 | 2.00 | V037 | V022 | $1,413.00 |
| HCN150NN | 1.5025 | 3.2475 | 3.714 | 3.00 | 0.625 | 3.00 | V041 | V029 | $2,039.00 |
| HCN200NN | 2.0025 | 3.7475 | 3.966 | 3.25 | 0.625 | 3.50 | V153 | V033 | $2,439.00 |
| HCN300NN | 3.0025 | 5.2475 | 4.464 | 3.625 | 0.75 | 4.50 | V159 | V151 | $3,371.00 |
| Hollow Shaft - O-Ring Flanged |
| VPC P/N | a (inch) | b (inch) | c (inch) | d (inch) | e (inch) | f (inch) | O-R OUTER |
O-R INNER |
Price |
| HFN050NN-O6 | 0.5025 | 2.75 | 3.215 | 2.75 | 0.38 | 1.25 | V238 | V014 | $1,647.00 |
| HFN050WN-O6 | 0.5025 | 2.75 | 3.215 | 2.75 | 0.38 | 1.25 | V238 | V014 | $1,719.00 |
| HFN100NN-O7 | 1.0025 | 3.00 | 3.34 | 2.75 | 0.50 | 2.00 | V244 | V022 | $1,692.00 |
| HFN100WN-O7 | 1.0025 | 3.00 | 3.34 | 2.75 | 0.50 | 2.00 | V244 | V022 | $2,070.00 |
| HFN150NN-O7 | 1.5025 | 3.75 | 3.714 | 3.00 | 0.625 | 3.00 | V244 | V029 | $2,250.00 |
| HFN150WN-O7 | 1.5025 | 3.75 | 3.714 | 3.00 | 0.625 | 3.00 | V244 | V029 | $2,642.00 |
| HFN200NN-O7 | 2.0025 | 4.18 | 3.966 | 3.25 | 0.625 | 3.50 | V244 | V033 | $2,709.00 |
| HFN200WN-O7 | 2.0025 | 4.18 | 3.966 | 3.25 | 0.625 | 3.50 | V244 | V033 | $3,002.00 |
| HFN300NN-O10 | 3.0025 | 5.87 | 4.717 | 3.875 | 0.75 | 4.50 | V262 | V151 | $3,663.00 |
| HFN300WN-O10 | 3.0025 | 5.87 | 4.717 | 3.875 | 0.75 | 4.50 | V262 | V151 | $4,487.00 |
| Part Number Cross Reference |
Solid Shaft - CF Flange
| VPC P/N | LESKER P/N | FERROTEC P/N | Description |
| SFN025NN-C133 | KLFDCF025133 | FE103915 | 1/4" shaft, CF1.33 flange |
| SFN025NN-C275 | KLFDCF025275 | FE103532 | 1/4" shaft, CF2.75 flange |
| SFN025WN-C275 | KLFDCF025275W | FE103501 | 1/4" shaft, CF2.75 flange, water cool |
| SFN038NN-C275 | KLFDCF037276 | FE103154 | 3/8" shaft, CF2.75 flange |
| SFN038WN-C275 | KLFDCF037275W | FE103912 | 3/8" shaft, CF2.75 flange, water cool |
| SFN050NN-C275 | KLFDCF050276 | FE103909 | 1/2" shaft, CF2.75 flange |
Solid Shaft - O-Ring
| VPC P/N | LESKER P/N | FERROTEC P/N | Description |
| SFN050NN-O6 | KLFDOF05060 | FE103244 | 1/2" shaft, 6" flange w/o-ring |
| SFN050WN-O6 | KLFDOF05060W | FE103182 | 1/2" shaft, 6" flange w/o-ring, water cool |
| SFN050WN-O7 | KLFDOF05070W | FE103329 | 1/2" shaft, 7" flange w/o-ring, water cool |
| SFN075WN-O5 | KLFDOF07550W | FE103904 | 3/4" shaft, 5" flange w/o-ring, water cool |
| SFN075NN-O6 | KLFDOF07560 | FE103246 | 3/4" shaft, 6" flange w/o-ring |
| SFN100WN-O6 | KLFDOF10060W | FE103259 | 1" shaft, 6" flange w/o-ring, water cool |
Solid Shaft - Thread Mount
| VPC P/N | LESKER P/N | FERROTECH P/N | Description |
| STN019NN-516 | KLFDTM018516 | FE103971 | 3/16" shaft, 5/16-24 |
| STN025NN-716 | KLFDTM025716 | FE103978 | 1/4" shaft, 7/16-20 |
| STN0505NN-114 | KLFDTM050114 | FE103191 | 1/2" shaft, 1"-14 |
| STN0505WN-114 | KLFDTM050114W | FE103204 | 1/2" shaft, 1"-14, water cool |
| STN075NN-114 | KLFDTM075114 | FE103193 | 3/4" shaft, 1"-14 |
| STN075WN-114 | KLFDTM075114W | FE103206 | 3/4" shaft, 1"-14, water cool |
Solid Shaft - Baseplate Mount
| VPC P/N | LESKER P/N | FERROTECH P/N | Description |
| SBN025NN-10 | KLFDBP02510 | FE103237 | 1/4" shaft, 1.0" mtg plate |
| SBN025NN-10E | KLFDBP02510E | FE103519 | 1/4" shaft, 1.0" mtg plate |
| SBN025NN-15 | KLFDBP02515 | FE103979 | 1/4" shaft, 1.5" mtg plate |
| SBN025NN-075 | KLFDBP02575 | FE103236 | 1/4" shaft, 0.75" mtg plate |
| SBN038NN-10 | KLFDBP03710 | FE103664 | 3/8" shaft, 1.0" mtg plate |
| SBN038NN-15 | KLFDBP03715 | FE103991 | 3/8" shaft, 1.5" mtg plate |
Hollow Shaft - Cartridge Mount
| VPC P/N | LESKER P/N | FERROTECH P/N | Description |
| HCN050NN | KLFDHC050 | FE132405 | 1/2" hollow cartridge |
| HCN100NN | KLFDHC100 | FE103319 | 1" hollow cartridge |
| HCN150NN | KLFDHC150 | FE103320 | 1.5" hollow cartridge |
| HCN200NN | KLFDHC200 | FE103321 | 2" hollow cartridge |
| HCN300NN | KLFDHC300 | FE103322 | 3" hollow cartridge |
Hollow Shaft - O-Ring Flanged
| VPC P/N | LESKER P/N | FERROTECH P/N | Description |
| HFN050NN-O6 | KLFDHOF05060 | FE103358 | 1/2" hollow shaft, 6" flange |
| HFN050WN-O6 | KLFDHOF05060W | FE105395 | 1/2" hollow shaft, 6" flange, water cool |
| HFN100NN-O7 | KLFDHOF10070 | FE103359 | 1" hollow shaft, 7" flange |
| HFN100WN-O7 | KLFDHOF10070W | FE105396 | 1" hollow shaft, 7" flange, water cool |
| HFN150NN-O7 | KLFDHOF15070 | FE103360 | 1.5" hollow shaft, 7" flange |
| HFN150WN-O7 | KLFDHOF15070W | FE103354 | 1.5" hollow shaft, 7" flange, water cool |
| HFN200NN-O7 | KLFDHOF20070 | FE103361 | 2" hollow shaft, 7" flange |
| HFN200WN-O7 | KLFDHOF20070W | FE103921 | 2" hollow shaft, 7" flange, water cool |
| HFN300NN-O10 | KLFDHOF30010 | FE133218 | 3" hollow shaft, 10" flange |
| HFN300WN-O10 | KLFDHOF30010W | FE133760 | 3" hollow shaft, 10" flange, water cool |