Customer Profile
- Region: Spain (European Union)
- Industry role: Transformer / power-equipment manufacturer serving the European market
- 2025 cooperation: 6 purchase orders completed within the year
- Materials purchased: Spacers / angle-ring strips, laminated wood (wood-based laminate), transformerboard / pressboard
Related SIDA Products:
The Challenge
phenolic paper tubes and bushings — and holds its suppliers to European expectations on quality consistency, lead time and documentation.
Its incumbent supply base was built around European mills. That meant premium pricing and long replenishment cycles for exactly the commodity categories — spacers, laminated wood, pressboard — where production consumes material continuously. The procurement team was looking for an alternative source that could meet European-grade specifications while shortening lead time and lowering the total cost of ownership (TCO) of insulation material purchasing. Any new supplier still had to prove material performance batch by batch.
The SIDA Solution
SIDA engaged as a one-stop insulation supply chain rather than a single-product vendor:
- Qualification by category. The cooperation started with spacers / angle-ring strips, then expanded into laminated wood and transformerboard / pressboard as successive orders were accepted.
- Documented quality. All materials are manufactured to IEC 60641-3-1 and ISO 9001 requirements, with a mill test report and batch-level traceability accompanying each shipment.
- Lead time in weeks. SIDA’s supply cycle is measured in weeks, against the longer mill cycles typical of European incumbents, allowing the customer to plan with less buffer stock.
- Flexible order structure. Multi-category, small-batch and rolling orders let the customer replenish what production actually consumed instead of committing to large single-category lots.
Results at a Glance
Six orders in one calendar year — across three distinct material categories — indicates that each delivery passed the customer’s incoming inspection and production use well enough to order the next one.
Key Takeaways
- European manufacturers will qualify a Chinese insulation supplier category by category; each accepted delivery is the qualification for the next category.
- Mill test reports and batch traceability are the entry ticket for the EU market, not a differentiator.
- Rolling, small-batch replenishment matches how transformer production actually consumes spacers, laminated wood and pressboard.
Source the Same Materials
SIDA supplies spacers, laminated wood, transformerboard and 14 other insulation material categories to transformer manufacturers, manufactured to IEC 60641-3-1 with full mill documentation. Send your specification for a quotation and a sample mill test report.
Customer name withheld at the customer’s request. Order counts and product categories sourced from SIDA’s 2025 order records.
