Project Background: Why OEMs Prefer Spacer Kits Over Bulk Parts
Traditionally, transformer OEMs had to source duct strips, wedge blocks, corner spacers, and side plates separately. This resulted in:
Inconsistent part matching during coil assembly
High error rates from manual cutting or mismatched tolerances
Lack of traceability and difficult inventory management
That’s why more OEMs are shifting to complete transformer duct spacer kits, delivered per unit, with all cooling spacer components pre-cut, labeled, and packaged for each model.
Case Study: CNC Pressboard Kit Supplied to 10 MVA Oil-Immersed Transformer OEM
Client: Transformer manufacturer, Turkey
Model: 10 MVA / 132kV oil-immersed power transformer
Request: Complete duct spacer set matched to winding drawing (DWG)
Materials: IEC 60641 pressboard + pre-compressed insulation strips
Kit Contents Delivered:
- CNC-cut pressboard spacers (custom length, slot profile per coil layout)
- Vertical cooling strips with notched grooves for oil circulation
- Chamfered wedge blocks for winding corners
- Spacer labels and packing matched to BOM and coil section
Packing Method:
- Each set packaged per transformer
- Includes drawing reference and labeled parts
- Available in batch export packing (3–10 units per pallet)
- Vacuum-packed with humidity-resistant foil and wood crate option
Key Capabilities in Delivering Insulation Spacer Sets
| Capability | Details |
|---|---|
| Drawing Matching | Accepts DXF, DWG, PDF – layout feedback & engineering matching available |
| CNC Processing | CNC slotting, hole punching, chamfering, radius shaping |
| Small MOQ Kit | Pilot batch starts from 1 set per transformer type |
| Custom Packing | Labeled box-by-box packing, QC batch ID traceability included |
| Global Export | CIF/DDP to 30+ countries, with SGS-compliant moisture barrier packaging |
📌 OEMs only need to send transformer coil layout drawings or samples—we handle everything from prototyping to export-ready assembly kits.
Client Feedback
“Their CNC pressboard kit fit perfectly into our winding slots. No adjustments were needed on-site—cut our coil assembly time by 20%.”
— Transformer Assembly Engineer, Europe
Why Choose Us for CNC Pressboard Kits?
✅ 20+ years of experience in insulation machining
✅ In-house CNC routing, slotting, laser marking & part tracking
✅ IEC 60641-certified pressboard material sourcing
✅ Exported to Europe, Middle East, Southeast Asia
✅ Full engineering support + English drawing review
✅ Sample kits and pre-production validation available
Next Step: Request a Spacer Kit Evaluation
📩 Ready to simplify your transformer insulation assembly?
Send us your drawing—we’ll evaluate the design and recommend a matching duct spacer kit layout.
🔘 [Request a Factory Quote + Lead Time]
🔘 [Download Our CNC Spacer Catalog PDF]
Phone: +86-15958243831
Email: jessie.feng@sidanm.com
Whatsapp: https://wa.me/8615958243831
