Insulation Materials & Components
Four focused product categories — pressboard, presspaper, laminated wood and drawing-based components. Select a category for grades, specifications and OEM options.

Browse by Category
C.01
Electrical Insulation Paperboard
0.8 – 5.0 mm · T3 / T1 / T4
High-density pressboard sheets for main barriers, winding cylinders, oil-duct spacers and structural insulation in oil-filled transformers.
0.8–5.0 mmThicknessIEC 60641Standard20,000 t/yrCapacity View Category
C.02
Electrical Insulation Paper
0.1 – 0.6 mm · 1100 mm Rolls
Roll and sheet formats for layer, turn and motor slot insulation — precision slitting with natural and dyed color options.
0.1–0.6 mmThicknessIEC 60763Standard8,000 t/yrCapacity View Category
C.03
Electrical Laminated Wood
10 – 120 mm · Birch / Beech Veneer
Densified cross-laminated veneer boards and machined parts — pressure rings, step blocks and coil supports for high-strength structures.
10–120 mmThickness0.7–1.3Density g/cm³2700×2700Max Sheet mm View Category
C.04
Components & Machined Parts
CNC-Machined · OEM to Drawings
Angle rings, lead exits, spacers, barriers and formed insulation parts — custom-manufactured per customer drawings and tolerances.
1000 kVMax VoltageCNCProcessOEMTo Drawings View Category// OEM Note — Send drawings in PDF / DWG. We return machined parts to tolerance.
Send DrawingsSend the Specification — Not Just a Product Name
For an accurate recommendation and quotation, include the following with your inquiry:
- Application & Standard
End use and required IEC or customer standard.
- Material Grade
Density grade, color and variant.
- Thickness & Dimensions
mm thickness, sheet or roll size, tolerances.
- Quantity & Packaging
Estimated volume and export packaging needs.
- Drawings / Documents
PDF or DWG files for machined components.
Can't Find Your Specification?
Guangxin produces custom thicknesses, formats and machined parts to drawing. Share your requirement — we respond within 24 hours.