Japanese
Chinese
SiteMap
HOME
Lineup of New Common Specification
Common Specification
| Operating pressure | From atmospheric pressure to 10-6Pa | |
|---|---|---|
| Leakage rate (He) | Less than 9.9x10-11Pa - m3/sec | |
| Atmosphere | For vacuum, inert gas or reactive gas (*１) | |
| Materials | Housing | SUS 304 |
| Shaft | SUS 630 | |
| Pole piece | SUS 630 | |
| Bearing | SUJ2 | |
| O-ring | FKM | |
| Bearing lubricant | Vacuum side : Fluorinated vacuum grease Atmosphere side : Anti-corrosive grease |
|
| Standard accessories (*2) | O-ring Washer and Nut(LSB series) |
|
Operating temperature range(*3)(*4)
Temperatures listed below are indications for using Magnetic seals safely WITHOUT WATER-COOLING.
In case of using Magnetic seals at out of range of those temparatures, water-cooling may be required.
| Magnetic fluid | Operating temperature range (no water-cooling) |
|---|---|
| Standard | 10 to 80°C |
| Anti-corrosion | 10 to 100°C |
| Low vapor pressure and anti-corrosion | 10 to 120°C |
Basic structure and Bearing arrangement
1) Both side suspended struture (*5)
2) Cantilever structure
Precaution
(*1) In case of using in Active gas, please select the magnetic fluid for "anti-corrosion" or "Low vapor pressure and anti-corrosion". However, another action will be needed in case of type of gas and using environment. Please tell us the type of gas and operating temperature when you inquire the question and place the order.
(*2)Regarding the size of the O-ring as accessories, please refer the detailed page of each product.
(*3)Operating temperature rate indicates the temperature of the attached plane of the housing and the end of the shaft in the vacuum side.
(*4)According to the actual applied circumstance and pressure, there may be a few cases that you can not use Magnetic seals in described temperatures in the chart.
Please refer here for more information.
(*5)Because of the structure of Magnetic Seal, a shaft should move a little (approximately 0.6 mm) to the axial direction.
