Straight heat sealing bands (strips) are the most widespread.
Their thickness, width, profile, length and alloy vary according to the application. Heat sealing bands can have a thickness of 0.1 mm to 0.4 mm and are usually between 2 mm and 10 mm wide. The length ranges from a few centimeters to several meters.
The part of a flat band facing the film is generally wedge-shaped (tapered), to ensure that a sufficiently strong sealed seam is also created at the edges.
The design of the heat sealing band ends also varies considerably. A reliable connection must be guaranteed between the band and the bar end block. Easy handling and freedom from contact resistances are also important. Sleeves, eyelets and brass end pieces are used for this purpose. Parts of the heat sealing bands that don’t need to be heated for sealing – especially the free ends – are passivated by suitable types of coating.
This prevents them from overheating, which is also vital for precise temperature control.
Heat sealing bands play a functional role in the impulse heat sealing process, which means we – as the supplier – have no room to compromise on quality.

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