phenolic paper tube · spacers / angle-ring strips · pressure rings · bushings · cooling ducts / oil ducts · epoxy tubes · G10 epoxy laminate sheet · CNC-machined epoxy parts · electrical steel / silicon steel sheet · bolts / studs · insulation accessories.
All materials are manufactured to IEC 60641-3-1 and ISO 9001 requirements and ship with mill test reports and batch-level traceability.
What These 49 Orders Had in Common
Test reports are a precondition, not a bonus. A Thai manufacturer required documented material performance before committing; SIDA supplied density, dielectric-strength and tensile mill data with the shipment. Batch-level traceability is standard on every order.
Repeat ordering is the real qualification. The Spanish customer returned 6 times within one year, expanding from spacers into laminated wood and transformerboard. The Malaysian customer placed 6 orders across 5 material categories, including CNC-machined parts. Repeat orders across categories — not one-off trials — made up most of the 2025 volume.
Responsive fulfillment when something goes wrong. When a shipment to an Algerian customer was found short-loaded, SIDA replenished the missing material by emergency air freight. When a Brazilian customer raised a quality complaint, the after-sales team worked the case through to resolution — the partnership continued, and the account completed 3 orders in 2025.
Flexible order structure. Multi-category, small-batch and rolling orders let customers keep inventory low while qualifying new material categories one at a time.
Read the Detailed Case Studies
- Spain: 6 repeat orders from a European transformer manufacturer → Read the case study
- Algeria: emergency air-freight recovery on a cooling-duct order → Read the case study
- Egypt: one customer, 4 orders, 4 material categories → Read the case study
- Malaysia: 6 orders including CNC-machined laminated wood parts → Read the case study
- Brazil: epoxy tube and G10 sheet supply through a resolved complaint → Read the case study
- Thailand: mill test reports as the condition of first order → Read the case study
All 23 customer case studies — including Germany, Saudi Arabia, UAE, Sri Lanka, Pakistan, Argentina, Uruguay and Indonesia — are listed on the case study index page.
Work With SIDA
If you manufacture transformers or power equipment and source pressboard, insulation paper, laminated wood, paper tubes or machined insulation components, send us your drawing or specification. We reply with a quotation, lead time and a sample mill test report for the relevant material grade.
Customer names are withheld at the customers’ request. All order counts, countries and product categories in this article come from SIDA’s 2025 order records.
