Ceramic Hermetic Seals
In recent years, there has been a strong need for components that are used in electronic devices to be applicable in high-vacuum ranges, and to have a high degree of fineness and precision. As this trend continues, the materials used in products have been shifting from resin and glass to ceramics, in order to respond to the need for improved quality. MARUWA's ceramic hermetic seals use ceramics Al2O3, etc.) as the insulating hermetic materials and maintain airtightness in high-vacuum ranges, so they eliminate concerns about aging deterioration. In addition, their applicability and reliability in high-temperature ranges has also been enhanced. Thanks to these characteristics, our ceramic hermetic seals are widely used in devices and equipment for fields related to space, medicine and nuclear power - areas that particularly require compatibility with high-vacuum and high-pressure conditions.
MARUWA's ceramic hermetic seals are highly airtight products that use ceramic-metal seal connection technology that we have cultivated over many long years.
|High airtightness||1x10-10[Pa･m3/S]or less (Amount of He gas leakage)|
|Heat-resistance temperature||350[℃]or less (Baking temperature, in inert gas or vacuum)
200[℃] (Temperature under continuous use)
* Varies depending on the product. Please contact us.
|High electric insulation||Ceramics are used for the insulating materials.|
|Special products||We accept orders to design and produce new products.|
n devices that have containers that seal them against vacuums (or, as special applications, against pressure, liquids and gases), these products electrically connect and insulate the inside and outside of the containers.
Ultra-high vacuum devices
Devices that use superconductivity
Semiconductor manufacturing equipment
Devices related to electric power
Medical analysis devices
Devices related to space and nuclear power
List of Products
Support for custom-made products
We accept orders to design and produce new products, regardless of the quantity.
We can also choose something to meet your requirements from the rich lineup of products we already have to offer.