Where Guangxin Materials Perform
Guangxin insulation materials are the silent guardian inside electrical equipment worldwide — from distribution transformers powering local grids to high-voltage systems demanding uncompromising reliability.
Distribution Transformers
≤ 66 kV · China's Largest Board Supplier
China's largest supplier of 0.8–5.0 mm insulation paperboard for distribution transformers — every major domestic transformer manufacturer is a Guangxin customer.
- Oil-Paper Insulation Structure
Paperboard + transformer oil form a dielectric barrier with matched permittivity.
- Key Components
Main insulation barriers, oil-duct spacers, yoke insulation, press rings, end rings.
- Material Grades
T3 soft board for formed parts; T4 hard board for high-stress structural areas.
- Proven at Scale
0.5 mm insulation paper supplied to all major domestic transformer manufacturers.
Power Transformers
Up to 1000 kV AC / ±800 kV DC
Structural and dielectric performance at larger scale — high-density pressboard and precision components for mechanically demanding areas.
- Layer & Inter-Turn Insulation
For medium and large power transformers.
- Lead-Exit Insulation Systems
Rated up to 1000 kV AC / ±800 kV DC.
- T4 High-Density Pressboard
Board cylinders, press plates and end rings for structural components.
- Large-Format Boards
1.4 × 2.5 m sheets available for large transformer applications.
Capacitors & Motors
0.1 – 0.6 mm · Precision Slit Rolls
Thin insulation paper engineered for dielectric layers, slot insulation and automated winding processes.
- Capacitor Dielectric
Thin insulation paper (0.1–0.6 mm) as capacitor dielectric layers.
- Motor Slot Insulation
100/00 type (0.1–0.5 mm) for low-voltage stator slots.
- 50/50 Type
Winding protection for vibration-environment motors.
- Precision Slit Rolls
Ready for automated winding processes.
Industrial Composites & Packaging
Lamination · Gaskets · Defense-Grade Board
Pressboard as an industrial material — for composite lamination, sealing, heavy-duty packaging and specialized defense applications.
- Composite Lamination
Insulation paperboard as base material for composite structures.
- Gaskets & Sealing
Industrial gasket and sealing applications.
- Packaging-Grade Board
Heavy-duty industrial packaging solutions.
- Neutral Paperboard
Military and specialized defense applications.
Have a Demanding Application?
Share your voltage class, component geometry and operating conditions. Our team will match the right grade and format — response within 24 hours.
