TAXONOMY: MAT_PRESSBOARD
Transformer Pressboard & Cellulose Insulation
Pre-Compressed Transformerboard, Laminated Wood, Crepe Paper & Machined Kits
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Technical Baseline & Specification Parameters
| Pulp Base | 100% unbleached softwood sulphate chemical pulp |
|---|---|
| Density Range | 0.90 to 1.30 g/cm³ (pre-compressed) |
| Dielectric Strength | ≥ 45 kV/mm (oil-impregnated at 90°C) |
| Moisture Content | ≤ 6.0% as delivered, dried to ≤ 0.5% during factory vacuum vapor phase |
| Ash Content | ≤ 0.70% (high chemical purity) |
Subcategories & Engineering Architectures
Pre-Compressed Board (B.3.1)
High-density, dimensionally stable pressboard for clamping rings, pressure rings, and high-voltage barriers.
Calendered Board (B.2.1)
Flexible, moldable pressboard for cylinders, wrap insulation, and duct strips.
Laminated Wood (Lignostone)
Vacuum-densified beechwood with synthetic resin bonding for mechanical coil clamping rings and beam supports.
Diamond Dotted Paper (DDP)
Kraft paper coated with epoxy resin dots on both sides for layer-insulated distribution windings.
CNC Insulation Kits
Prefabricated insulation packages: molded angle rings, snouts, lead exits, and stepped spacers.
Suppliers in this category (36)
Companies listed for this category. A listing is not a product certification. The identity badge is shown only after TransformerPath checks the organization and a business contact.
| Company & Location | Capabilities & Product Lines | Status | Action |
|---|---|---|---|
|
Weidmann Electrical Technology Rapperswil, Switzerland |
Global benchmark transformerboard, CNC insulation kits, and diagnostic services | Listed | Website ↗ · RFQ |
|
Krempel Group Vaihingen, Germany |
Pressboard, flex insulation, and composite materials | Listed | Website ↗ · RFQ |
|
PSP Pressspan Zwönitz, Germany |
Calendered pressboard and precision stamped components | Listed | Website ↗ · RFQ |
|
Röchling Engineering Plastics Haren, Germany |
Lignostone transformerwood coil clamping rings and beams | Listed | Website ↗ · RFQ |
|
ACC Insulations Pvt Ltd Nashik, India |
Pressboard / insulation materials | Listed | Website ↗ · RFQ |
|
Ahlstrom-Munksjö Helsinki, Finland |
Pressboard / insulation materials, DDP / DPE (densified pressboard) | Listed | Website ↗ · RFQ |
|
Cottrell Paper Company Rock City Falls, United States |
Pressboard / insulation materials | Listed | Website ↗ · RFQ |
|
Dehonit (Deutsche Holzveredelung) Kirchhundem, Germany |
Laminated wood / insulation wood | Listed | Website ↗ · RFQ |
|
DuPont (Nomex) Wilmington, United States |
Pressboard / insulation materials | Listed | Website ↗ · RFQ |
|
ENPAY Endüstriyel Pazarlama ve Yatırım A.Ş. Başiskele, Türkiye |
Pressboard / insulation materials, Laminated wood / insulation wood, CRGO (core steel) | Listed | Website ↗ · RFQ |
|
Isovolta AG Wiener Neudorf, Austria |
Pressboard / insulation materials | Listed | Website ↗ · RFQ |
|
Krempel GmbH Enzberg, Germany |
Pressboard / insulation materials, DDP / DPE (densified pressboard), Laminated wood / insulation wood | Listed | Website ↗ · RFQ |
|
Lee Vedla Industrial Corporation Bhopal, India |
Copper / CTC conductors, Pressboard / insulation materials, CRGO (core steel), Transformer oil / ester fluids | Listed | Website ↗ · RFQ |
|
Permali Gloucester Ltd Gloucester, United Kingdom |
Laminated wood / insulation wood, Pressboard / insulation materials | Listed | Website ↗ · RFQ |
|
Hitachi Energy (Insulation & Components, Nanjangud — formerly Raman Boards) Nanjangud, India |
Pressboard / insulation materials, DDP / DPE (densified pressboard), Laminated wood / insulation wood | Listed | Website ↗ · RFQ |
|
Röchling Industrial (Lignostone) Haren, Germany |
Laminated wood / insulation wood, Pressboard / insulation materials | Listed | Website ↗ · RFQ |
|
Senapathy Whiteley Ltd Bengaluru, India |
Pressboard / insulation materials, DDP / DPE (densified pressboard) | Listed | Website ↗ · RFQ |
|
Taizhou Xinyuan Electrical Equipment Co., Ltd. Taizhou, China |
Pressboard / insulation materials | Listed | Website ↗ · RFQ |
|
Umang Boards Ltd Jaipur, India |
Pressboard / insulation materials, DDP / DPE (densified pressboard), Laminated wood / insulation wood | Listed | Website ↗ · RFQ |
|
Von Roll (Superior Essex) Breitenbach, Switzerland |
Pressboard / insulation materials | Listed | Website ↗ · RFQ |
|
Weidmann Electrical Technology (Weidmann Group) Rapperswil, Switzerland |
Pressboard / insulation materials, DDP / DPE (densified pressboard), Laminated wood / insulation wood | Listed | Website ↗ · RFQ |
|
Chromatography & Instruments Co. Pvt. Ltd Vadodara, India |
Bushings (HV, LV), Pressboard / insulation materials, Breathers (silica gel), Monitoring / diagnostic devices | Listed | Website ↗ · RFQ |
|
Hitachi Energy India Ltd Bangalore, India |
Bushings (HV, LV), Pressboard / insulation materials | Listed | Website ↗ · RFQ |
|
Pressgel Insulations Pvt. Ltd. Vadodara, India |
Bushings (HV, LV), Pressboard / insulation materials | Listed | Website ↗ · RFQ |
|
Raychem RPG (P) Ltd. Thane, India |
Copper / CTC conductors, Bushings (HV, LV), Pressboard / insulation materials, Transformer oil / ester fluids | Listed | Website ↗ · RFQ |
|
SCOPE T&M Pvt. Ltd. Mumbai, India |
Pressboard / insulation materials, Test equipment | Listed | Website ↗ · RFQ |
|
Surendra Composites Pvt. Ltd. Bhopal, India |
Pressboard / insulation materials | Listed | Website ↗ · RFQ |
|
The Motwane Manufacturing Co. Pvt. Ltd. Nashik, India |
Pressboard / insulation materials, Transformer oil / ester fluids, Monitoring / diagnostic devices | Listed | Website ↗ · RFQ |
|
Pucaro Elektro-Isolierstoffe GmbH Roigheim, Germany |
Pressboard / insulation materials, DDP / DPE (densified pressboard) | Listed | Website ↗ · RFQ |
|
Permali Wallace Pvt Ltd Bhopal, India |
Laminated wood / insulation wood, Pressboard / insulation materials | Listed | Website ↗ · RFQ |
|
Tomoegawa Co., Ltd. Tokyo, Japan |
Pressboard / insulation materials | Listed | Website ↗ · RFQ |
|
Henan Yaan Electrical Insulation Material Co., Ltd. Xuchang, China |
Pressboard / insulation materials, DDP / DPE (densified pressboard) | Listed | Website ↗ · RFQ |
|
Baoding Xinyuan Electrical Insulation Material Co., Ltd. Baoding, China |
Pressboard / insulation materials, DDP / DPE (densified pressboard), Laminated wood / insulation wood | Listed | Website ↗ · RFQ |
|
Spaulding Composites Inc. Rochester, United States |
Pressboard / insulation materials, Laminated wood / insulation wood | Listed | Website ↗ · RFQ |
|
Alrocel S.A. Barcelona, Spain |
Pressboard / insulation materials | Listed | Website ↗ · RFQ |
|
Elin Insulation FZ LLC Ras Al Khaimah, United Arab Emirates |
Pressboard / insulation materials, Laminated wood / insulation wood, DDP / DPE (densified pressboard) | Listed | Website ↗ · RFQ |
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