Automotive Air Conditioning Compressor Seals

Product Description

Passenger vehicles and cargo trucks depend on reliable cooling systems. Auto compressor terminals must withstand sustained exposure to adverse elements and conditions including extreme temperatures, moisture, and constant vibration. To survive these conditions, automotive ac compressor terminals require extraordinarily careful design and the use of extremely durable materials.

Electric compressors are widely used in environmentally friendly vehicle applications such as electric vehicles (EVs) and hybrid electric vehicles (HEVs). Normally, gasoline-fueled cars use air conditioning compressors that are powered by the engine. However, the electric compressors found in HEVs and EVs function with their own motor independent of the engine and must be hermetically sealed. These compressor terminals serve the purpose of power transfer.


SCHOTT offers both standard and custom-made automotive ac compressor seals. The use of ceramics and silicon rubber as standard materials provide quality insulation to manage substantial areas and challenging environmental conditions. Screws are sometimes used to close the compressor seals, but SCHOTT can also design these seals according to specific customer requests.


Automotive air conditioning compressor seals are hermetically sealed and ideal for modern electric compressors for car air conditioners.

Technical Details


SCHOTT glass-to-metal automotive ac compressor seals help form a hermetic seal for electric air conditioning compressors. For more information about our glass-to-metal technology, please click on this page. Alternatively, you can find out about our GTMS products from the GTMS brochure.

Features / Specifications of Our Compressor Seals
Material information
Pin Fe-Cr、Copper core Fe-Cr
Eyelet Fe
Glass Soda barium
Insulation material Glass, Ceramic

Technical information
Air tightness ~1.0×10-9Pa m3/sec.
Insulation resistance 1000MΩMin. at DC500V

Forms of Supply and Product Packaging

Standard forms of supply are available. Please contact our sales department if you have questions or special requests concerning supply and packaging.


All of our automotove ac compressor seals are manufactured in our ISO 9001/14001 certified plant, the quality assurance standard of ISO. For more information, please click here.
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