Metallic pillow plate heat exchangers SYNOTHERM®

Good solutions are often astonishingly simple::

  • low space requirement
  • highest efficiency
  • easy to clean
  • titanium grade 2 and stainless steel (AISI 304, AISI 316L, AISI 316Ti)

Production Process of Pillow Plate Heat Exchanger SYNOTHERM®


We manufacture the SYNOTHERM® plate heat exchangers at our premises in Schwabach, Germany, and monitor the production process within the scope of DIN EN ISO 9001. The quality of the plate heat exchangers is determined by the quality of the welding processes. The latest welding technologies produce nearly no annealing colors to the surface during the welding process and pickling of the surface is not necessary. The surface is smooth and can be electroplated for applications with high hygiene requirements.

The SYNOTHERM® plate heat exchangers are manufactured using two metal sheets to form the basic plate. The substantial quality of the metal sheets used ensures the high quality of our plate heat exchangers.

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Spot and edge welding

The metal sheets are cut to the required dimensions by a sheet shear, then a fully automatic spot and edge welding is achieved by a retraceable welding process.

Connection options

The inlet and outlet consists of piping with the appropriate quality connection technology. As a connection technique, either a flange or a threaded nipple can be welded onto the pipes. This allows us to easily solve your complicated installation situations.

Fastening options

After this the fixing strips and spacers are welded on the heat exchanger. The plate heat exchangers are fixed to the tanks by the fixing strips. The spacers guarantee a defined distance to the tank wall, that the entire heat exchanger surface is immersed and the process liquid is able to flow round the exchanger. This ensures optimum heat transfer.

High pressure forming

The pillow structure of the plate heat exchangers is generated by high pressure forming. The expansion is effected with an inflation pressure, which is far above the working or operating pressure.


The type designation (article number and device number) and technical data are engraved on an identification plate, which is permanently legible.

Pressure Test

All plate heat exchangers are designed, manufactured and final-tested in compliance with the Pressure Equipment Directive 2014/68/EU. Every product hast to perform the overpressure test and the leakage test.

Please contact us for technical questions or a quotation.

We look forward to your questions and inquiries.


Schlachthofstraße 3, D-91126 Schwabach


+49 (0) 9122 9855-0