Hitachi Energy (Insulation & Components, Nanjangud — formerly Raman Boards)

Country IndiaState KarnatakaCity NanjangudOfficial website ↗

Hitachi Energy's premier insulation manufacturing facility in Nanjangud (formerly Raman Boards Ltd), producing high-density precompressed pressboard (IEC 60641-3-1 Type B.3.1), diamond dotted paper (DDP), insulating cylinders, edge spacers, and CNC-machined insulation kits up to 1200 kV class.

Product categories

Pressboard / insulation materials DDP / DPE (densified pressboard) Laminated wood / insulation wood

Related components

Insulation Materials

Company record

CompanyHitachi Energy (Insulation & Components, Nanjangud — formerly Raman Boards) (Hitachi Energy)
RolePRIMARY_MILL_MANUFACTURER
LocationNanjangud, Karnataka, India
Accessory categoriesPressboard / insulation materials, DDP / DPE (densified pressboard), Laminated wood / insulation wood
Product familyHigh-Density Pressboard & Fabricated Components
Product / Trade namesRaman High Density Pressboard, Precompressed Board, DDP, Moulded Components
Density1.15 – 1.25 g/cm³
Documented gradesIEC 60641-3-1 Type B.3.1, IS 1576
Thickness / dimensions0.8 mm – 6.0 mm (laminated blocks to 100 mm)
Technical standardsIEC 60641-3-1, IS 1576
Founded1979
Primary evidence citationHitachi Energy Nanjangud / Raman Boards official technical documentation
Source tierTIER A
ProvenanceVerified · Source: official website · checked 14 Sept 2026

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