Thermal Sealing Device

polystar® 400 SZ
polystar 400 SZ
polystar 400 SZ
polystar 400 SZ


Feather-light tongs: Sealing made safe and fast

Oh, but they do!

The 400 SZ sealing tongs from the polystar® brand combine all these attributes into one – and are GS-tested.

As with all polystar® film sealers and continuous rotary heat sealers, we place a great deal of emphasis on user safety right from the design phase. We have noticed that although there are many sealing tongs on the market, very few put safety in the spotlight: most of the time, the sealing tongs are top-heavy and the handles are unpleasantly hot. The closer you get to the sealing elements, the greater your risk of being burned.

That is why we were determined to make it better – i.e. safer and easier for you:

Heat protection/protection against burns:

  • With the polystar® 400 SZ heat sealing tongs, the sealing elements are behind a protective polycarbonate cover. Only a small amount of heat makes its way through the cooling slots.
  • The tong handles are, at most, warm to the touch – thanks to our superior thermal insulation.
  • The sealing elements are closed and protected by the polycarbonate cover when not in use. “Accidental” burning is practically impossible.

Easy to use:

  • Weighing in at just 1.5 kg, they can be used for long periods of time non-stop.
  • They are not top-heavy and therefore make work more comfortable and less tiring.
  • Easy to open/close by pressing the handles together/releasing them.
  • The sealing process is started when the heat sealing tongs (sealing elements) are closed.
  • The sealing temperature can be set using the turnable pointer knob in the handle.
  • The sealing time can be set using the special handle electronics.
  • Visual and audible status indication.
  • Visual and audible error signal in the event of deviations/operating errors.

Aluminium and paper composite films and/or PA/PE and PP films can be effortlessly sealed to lock out air and lock in aromas with the polystar® 400 SZ heat sealing tongs.

And, with the correct temperature setting, doypacks can be sealed in no time at all. This makes the polystar® 400 SZ heat sealer ideal for use in shops of bakeries, pâtisseries and coffee roasters, etc. So you can hand your customer freshly packaged – and aroma-sealed – merchandise ready for the journey home.

Of course, the constantly heated polystar® 400 SZ heat sealing tongs are also suitable for long periods of use. Production runs involving large numbers of items over several hours can be handled without a problem.

Important: The polystar® sealing tongs are not suitable for polyethylene bags (PE bags).

To seal polyethylene bags (PE bags) or polyethylene film (PE film), use our polystar® thermal impulse sealers or the rapid-action continuous rotary band sealers from the polystar® 350/5 DSM series.


Technische Daten

Technical Data polystar® 400 SZ
Max. sealing seam length  400 mm
Sealing seam width  12 mm corrugation
Sealing temperature  Variable 100 - 220°C
Input current (peak value)  1,8 A
Power consumption (peak value)  400 watt
Dimensions  425 x 300 x 130 mm
Net weight  1.5 kg
Power supply  230 V/50 Hz
Sealing tongs delivered with 5 m connection cable. Figures given are approximate. Subject to technical changes.


Datenblatt 260 HSG (150.13 KB)

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