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    • Wind power
    • Railway technology
    • Laser Technology
    • LED
    • Boards
    • Solar applications
    • Inverter

    Wind power

    Heat sinks for wind turbines have to fulfil not only the cooling function but also the requirements for increased corrosion protection, long reliability and low maintenance.

    Controls for blade adjustment and wind tracking are examples of assemblies in which heat sinks for wind power are used.

    Seifert high-performance profile and finned heat sinks reliably protect the inverters and frequency converters from overheating.

    Railway technology

    The heat sinks used in railway technology are often so-called push-through versions, in which the cooling fins are inserted through a housing cutout and then exposed to the wind.

    The electronics are protected from environmental influences on the inside, on the base surface of the cooler, which is separated from the outside by seals.

    In the railway sector, high demands are placed on the optimal use of installation space, safety and durability.

    Seifert is certified to EN 15085 for the supply of welded heat sinks.

    Laser Technology

    Laser systems are finding an ever wider range of applications in metalworking, medical technology, telecommunications, microprocessing, marking and much more.

    The cooling of laser devices requires convection cooling, i.e. heat sinks that are operated with forced convection. A high heat dissipation is achieved by turbulent flow.

    In laser applications, the heat sinks often combine the cooling task with other functions such as mounting or housing functions.


    Heat sinks for high-performance LED luminaires fulfil important functions with regard to the performance, efficiency and service life of the LEDs.

    For example, the light output and the light color depend on the temperature of the LED unit. It is important to maintain a constant temperature level for safe, long-lasting operation of the light source.

    While in the consumer sector the cooling function is mainly covered by the housing parts and no additional heat sink is required, in the field of industrial or outdoor lighting or even for larger LED luminaires in the railway sector individually manufactured LED heat sinks are necessary.


    The heat from components on circuit boards is mainly dissipated by natural convection and radiation. For this purpose Seifert electronic offers a variety of different heat sink designs.

    The heat sinks in the PCB area are usually black anodized to take advantage of the higher emission rate of surface radiation from black bodies.

    Seifert PC-Board heatsinks achieve high heat dissipation with optimized use of installation space.
    All common mounting types of PC-Board heatsinks are available.

    Solar applications

    The solar modules in the photovoltaic systems produce direct current, which must be converted into alternating current by inverters before it can be fed into the public grid.

    In addition to this conversion, these inverters also perform control tasks for grid feed-in and monitoring. The inverters thus have a central task for the safe operation of the solar system.

    For operation with high efficiency, the resulting power loss must be safely dissipated. Seifert offers powerful heat sinks for forced cooling.


    Frequency converters control the speed for electric motors by changing the voltage and frequency, thus allowing the motor speed to be varied continuously.

    Due to their high power density, effective cooling with forced convection is required, which can dissipate large amounts of heat in a compact installation space.

    Seifert high performance fan units or the finned coolers of the Vario series ideally meet these requirements and can be flexibly adapted to the requirements due to their modular design.