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Lignostone® Transformerwood® - for transformers
Lignostone® Transformerwood® - for transformers
  • Industrial
  • Industries
  • Electrical Industry
  • Transformer
  • Oil-filled transformers
  • Lignostone® Transformerwood® - for transformers
  • Lignostone® Transformerwood® - for transformers

    Under the brand name Lignostone® Transformerwood® we offer you a laminated densified wood according to IEC 61061 for the construction of transformers that consists of beech veneers (Fagus sylvatica), which are joined together with thermosetting synthetic resins under pressure and heat. Lignostone® Transformerwood® has the following properties:

    • good electrical insulation
    • very good oil absorption
    • low specific weight
    • withstands high mechanical loading
    • low- and high-temperature resistance
    • resistance to abrasion and wear


    Transformer with construction elements made of Lignostone® Transformerwood

    Röchling is a member of TRANSFORM - A unique network of leading global suppliers in the field of power transformers.


    Veneer quality

    Key to identification

    The required grade for a specific application is defined by

    Densification symbols

    L = 0.75 to 1.05 g/cm³
    M = 1.10 to 1.25 g/cm³
    H = 1.30 to 1.40 g/cm³


    I= parallel
    II= crosswise
    X= tangential

    Veneer thickness

    1 = veneers < 2 mm
    2 = veneers ≥ 2 mm

    Type of resin

    without character = mechanical types
    E3 = electrical types

    Example: An example for identification of one of the standard types: LII/2-E3 = Low density – crosswise lamination – with ≥ 2.0 mm veneer – electrical type. We also supply special types for applications with particular requirements.



    We offer you our laminated densified wood Lignostone® Transformerwood® as:



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