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Roof welding machine

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Welding of surface, parapet, eaves and
edge areas with only one device

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Laron BL

Roof welding machine

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For welding all thermoplastic roof materials
and tarpaulins

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Exon 6

Manual welding device

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Air and mass temperature separately adjustable
and optional 360° adjustment of the welding shoe

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HBR and AB

Combined heating
and bending machine

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Bending device for bending the boards up to a
angle of 130° and a radius of max. 30 mm.

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Weldon S

Apparatus and tank construction

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With 360° rotatable heating element tube
for nozzle positioning without tools

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Manual welding device

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Steplessly adjustable temperature and effortless
welding due to ergonomic handle shape

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Air heater

as potentiometer, external
control or without electronics

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Multifunctional use due to modular construction
equipped with electric motors heating element
and device protection

Products & Applications

Find your product: We offer you comprehensive but compact information on all our equipment and machines in every category. We are also happy to develop products to suit your specifications - from welding systems to air heaters.

Flat roof

From manual welding device to automatic welding machines, testing equipment and accessories - everything you need for reliable plastics processing on flat roofs.

Heater / Blower / Ignitors

Reliable built-in devices for industrial process heat with a huge range of modification options.

Apparatus and tank construction

Innovative ideas, ergonomic handles and matching accessories ensure safe and effortless work.


Manual welding extruders in many sizes and performance classes, industrial extruders and extruders for robotics, automation and 3D printing applications.

Heating and bending machines

Whether it is acrylic, plexiglass, PC, PVC, PP, PE, Forex, etc. Bending machines and equipment for many materials up to 25mm thickness.

Civil engineering

Durable machines with and without recording of parameters for civil engineering, pond and tunnel construction.

Awnings / Banners

Whether on the table or on the floor - with our tools you work safely, quickly and efficiently.

Pipe and plate welding

Pipe welding machines for trenches and workshops as well as plate welding machines up to 4m width.


Tools designed for the specific material allow reliable work in any situation.


From the all-round facility manager to the specialized professional - with our tools you have the processing of thermoplastic materials totally under control.

Welding wire

Plastic welding wires in many materials, shapes and colours. Also in small quantities.

Filament for 3D-Printer

Filaments for 3D printing from our own production. Also available as OEM or wage fabrication.

With HERZ through the world of plastics

HERZ GmbH, plastics welding and process heat technology, is developer and producer of devices, machines and accessories for the processing and manufacturing of plastics as well as for the process heat technology. For more than 50 years, our more than 50 employees in many countries of Europe are available to you with advise and action.


  • Innovative
  • Practice oriented
  • Service oriented


Here you can find our job offers or find out about training. We look forward to receiving your application! 

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Events & Fairs

Events & Fairs

Whether online or on location - insights into our events and activities such as trade fairs, company parties, employee events, etc. are shown here.

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