About us…



Seifert electronic GmbH & Co. KG Egerstraße 3, 58256 Ennepetal


Extrusion saw and Computer controlled containerized raw material stores


Computerized assembly unit for PC-board heat sinks


CNC machining centre


Computer controlled anodizing plant

This is how you take the heat off
This is how you take the heat off
Electronics and heat are like fire and water. To safely remove heat from components and modules and minimize failure from overheating, SEIFERT electronic has been producing, for more than 50 years, application-specific heat sinks that are tailored to meet various requirements and operating conditions.

Under the ambiguous slogan “The Heat S(th)ink Company” our manufacturing plant at Ennepetal, which covers well over 4,500 m², produces “Quality Made in Germany”. Our range of products extends from small PC board heat sinks via high-performance fan sets to liquid coolers. Thanks to a high manufacturing depth and an experienced engineering team, Seifert can meet the most varied customer needs quickly and flexibly.

SEIFERT is certified to DIN EN ISO 9001. A computer-controlled container warehouse has storage capacity for 250 tons of high-quality profile heat sinks. This warehouse, in combination with sophisticated production equipment, forms the basis for our ability to quickly deliver standard and special heat sinks.

Special heat sinks are developed in constructive dialog with our customers – in a competent and effective manner. To ensure best possible results, SEIFERT‘s engineering, simulation, instrumentation and production experts work hand in hand.

Through SEIFERT‘s direct sales service or competent marketing partners, we provide a high level of customer proximity in order to effectively serve our customers worldwide. Our marketing efforts focus not only Europe, but also on the U.S.A., South Africa and Asia.

Get to know the competence of SEIFERT electronic, if you wish to cool your electronic components effectively. Tell us your specific needs – no matter whether they relate to individual components or complete switchgear units!