Prium® Lehr – Integrated Annealing lehr

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Anneling Lehr - Prium Lehr-FIVES

Complete annealing lehr solutions

With more than 25% of the worldwide flat glass lines installed, Fives is one of the top annealing lehr engineering provider of complete solutions with E&P or EPC. 

We design and procure your annealing lehr according to your line process specification, product application, site situation, selecting the most appropriate solution to optimize your Capex and Return On Investment time. 

We will assist you during commissioning, start up and can do production service on your demand.

Standard Float Glass Annealing Lehr: Prium® Lehr

Annealing Lehr for building, automotive and solar glass are typically producing soda lime glass ribbons with thicknesses ranging from 1.6 to 25mm and maximum pull up to 1200 tpd. Prium® Lehr is an integrated solution focusing on factors bellow to achieve a first class annealing lehr:

  • Precise theoretical thermal balance calculation
  • Patterned Hot Air Process
  • Continuous Annealing Process
  • Fuzzy logic temperature control
  • Proportional control
  • Experienced and Specialized service team

Customer’s benefit

Thanks to more than 100 lines experience in annealing lehr design and smooth running, Prium® Lehr is the sole solution which will guarantee you an optimized investment and a trouble free annealing lehr operation.

Ultra-thin float glass world sets a new paradigm for glass makers: Prium® Lehr UTG

With ribbon thicknesses down to 0.35mm, ribbon width close to 5.4 m and difficult annealing due to specific glass composition (high Alumina, high Alkali), ultra-thin annealing lehr configuration becomes a real challenge.

In this specific world all details matter, every technical choice and trade-off can impact the final quality of glass sheets. Specific attention is paid on annealing curve on ribbon edge and centre both maintain to the design by optimized configuration and multi-section drive.

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