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Nabertherm GmbH

Bahnhofstr. 20, 28865 Lilienthal
Telephone +49 4298 922-0
Fax +49 4298 922-129

Hall map

glasstec 2018 hall map (Hall 12): stand C33

Fairground map

glasstec 2018 fairground map: Hall 12

Our range of products

Product categories

  • 01  Glass production/Production Technology
  • 01.09  Kiln technology
  • 01.09.03  Annealing lehrs, continuous/intermittent operation
  • 01  Glass production/Production Technology
  • 01.09  Kiln technology
  • 01.09.04  Decorating lehrs

Decorating lehrs

  • 01  Glass production/Production Technology
  • 01.09  Kiln technology
  • 01.09.05  Pre-heating furnaces
  • 01  Glass production/Production Technology
  • 01.09  Kiln technology
  • 01.09.06  Fusing Kilns

Fusing Kilns

  • 02  Glass processing and finishing
  • 02.09  Safety glass technology
  • 02.09.01  Pre-tempering technology
  •  Furnaces for chemical pre-tempering of glass

Furnaces for chemical pre-tempering of glass

Our products

Product category: Annealing lehrs, continuous/intermittent operation

Chamber Furnaces N.../G for Glass Annealing

These high-quality chamber furnaces for firing, sintering and tempering have qualified themselves with the reliability for many years in daily use. Thanks to their five-side heating, the furnaces provide for a very good temperature uniformity. A wide range of additional equipment perfectly adapt these chamber furnaces to the process requirements.

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Product category: Annealing lehrs, continuous/intermittent operation

Chamber Furnaces with Wire Heating for Tempering Quartz Glass

When cooling, decorating, glazing or sintering special glass during production, bogie hearth furnaces offer numerous advantages. Due to their very good temperature uniformity, these models are perfectly suited for burning in a separation layer of silicon nitride in crucibles for the solar industry. The bogie can be charged outside the furnace. Several shuttles can be used, so that one shuttle can be charged while the other shuttle is in the furnace.

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Product category: Annealing lehrs, continuous/intermittent operation

Top Hat Furnaces or Bottom Loading Furnaces for Tempering Quartz Glass

These top hat furnaces or bottom loading furnaces were specially developed for cooling complex structures or when the process requires the treatment of warm glass, e.g., the welding process in glass apparatus manufacturing. The wide-opening electro-hydraulically driven top hat allows furnace opening even at high temperatures and provides easy access from 3 sides. Depending on process conditions, a top hat or bottom loading version is advisable. The system can be expanded to include one or more changeable tables, either manually or motor driven. Further additional equipment like a multi-zone control to optimize the temperature uniformity or controlled cooling systems for shorter processes provide for customized solution with respect to the process requirements.

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Product category: Pre-heating furnaces

Forced Convection Chamber Furnace NA.../65 for Glass Annealing

The very good temperature uniformity of these forced convection chamber furnace with air circulation provides for ideal process conditiones for annealing, curing, solution annealing, artificial ageing, preheating, or soft annealing and brazing. The forced convection chamber furnaces are equipped with a suitable annealing box for soft annealing of copper or tempering of titanium, and also for annealing of steel under non-flammable protective or reaction gases. The modular forced convection chamber furnace design allows for adaptation to specific process requirements with appropriate accessories.

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Product category: Fusing Kilns

Fusing Furnaces

The fusing furnaces in the GF 75 - GF 1425 product line were conceived for professional glass artists. The heating elements, closely arranged, protected in quartz tubes, ensure a very high degree of temperature uniformity during fusing or during bending across the whole table surface. The insulation, made of non-classified fibrous material in the furnace hood and robust lightweight refractory bricks in the furnace floor allow clean and safe operation. High current connection capacities assure that the fusing furnace can be rapidly heated up.

The fusing furnaces of GFM product line were developed to meet the special requirements of production. For different applications different table models can be supplied. Standard is a table for fusing. Various tables and tubs with different heights are available as system add-ons. Especially economical is the alternating table system, in which one table is loaded while the other one is in the fusing furnace.

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Product category: Furnaces for chemical pre-tempering of glass

Salt-Bath Furnaces for Chemical Hardening of Glass

Chemical hardening is mostly applied for the solidification of thin glasses with a thickness of up to 3 mm. Chemical pretensioning is recommended because the surface flatness can be maintained. Producers of copy machines, solar modules, microwave devices, measuring instruments as well as companies in the lighting industry, the automotive industry and other users of flat glass need to apply the toughest possible glass in their products. Nearly all glasses containing a large percentage of sodium can be strengthened by means of ion exchange.

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About us

Company details

As a family-owned company, Nabertherm is furnished with the essential financial power and independency, to develop and expand its internationally leading position in the industrial furnace industry with high technology.

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