Transformer Equipment & Integrated Solutions, Backed by 20+ Years of Transformer Know-How
Tranfovia is the dedicated equipment division of SIDA, a leading transformer insulation materials manufacturer serving 500+ transformer makers worldwide since 2004.
Get a Quote within 24 HoursEquipment Built by Engineers, for Engineers
Tranfovia is the dedicated equipment division of SIDA, a leading transformer insulation materials manufacturer with 20+ years of industry heritage. We don't just sell machines — we deliver integrated production solutions backed by deep material know-how and professional after-sales support.
From Insulation Materials to Integrated Manufacturing Solutions
Our clients kept asking the same question: "Can you also help us source reliable production equipment?" For two decades we supplied the materials that transformers are built from — so we know exactly what the machines processing them must deliver.
- Trusted by transformer manufacturers including
- State Grid
- TBEA
- ABB
- SIEMENS
- WEIDMANN
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2004
SIDA was founded in Ningbo, China, specializing in transformer insulation materials: laminated wood, DDP pressboard, presspaper, duct strips, and cooling strips.
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2004–2024
Over the next two decades, we supplied materials to 500+ transformer manufacturers worldwide, including State Grid, Southern Power Grid, TBEA, ABB, SIEMENS, and WEIDMANN.
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2024
To meet growing demand, SIDA established TRANFOVIA as a dedicated team for transformer manufacturing equipment — connecting global clients with China's leading equipment brands while ensuring every machine meets IEC and NEMA standards through professional inspection and responsive after-sales service.
A Materials Insider's Standard for Equipment
Twenty years of supplying insulation materials taught us what separates a reliable machine from an expensive problem.
Deep Material Know-How
We supplied the pressboard, paper, and strips your coils are wound with — so we spec machines that actually protect material performance.
IEC & NEMA Verification
Every machine is inspected against IEC and NEMA standards before shipment — not just promised on a datasheet.
Whole-Line Configuration
Send us your transformer rating and target output — we configure the entire production line, not just one machine.
Responsive After-Sales
English-speaking engineers, 24/7 support, plus on-site installation and operator training included.
What Our Clients' Production Lines Achieved
Real outcomes reported by plant managers and engineers running Tranfovia-supplied equipment.
"We integrated the automatic high-voltage winding machine into our line during a capacity expansion. Winding efficiency for large transformer coils improved by nearly 40%, and our first-pass yield rate has climbed noticeably. Technical support responds within a day."
"The servo sorting core cutting line has become a critical part of our silicon-steel processing shop. Edge quality is clean and burr-free, and automated sorting reduces manual handling significantly."
"We run the vacuum drying equipment in tandem with the HB-series curing oven for large transformer coils. Temperature distribution is even across the chamber, and the energy-saving drying oven made a visible dent in our monthly power consumption."
Talk to an Engineer Who Has Spent 20 Years Inside Transformers
Send your capacity, voltage class, and target output. We reply within 24 hours with machine configuration and a budgetary quotation.
Get a Quote within 24 HoursFree layout consultation · English-speaking engineers · Installation & training included
