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Pro-Expand Glass Sheets
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  • Pro-Expand Glass Sheets
  • Pro-Expand Glass Sheets
  • Pro-Expand Glass Sheets
  • Pro-Expand Glass Sheets
  • Pro-Expand Glass Sheets
Pro-Expand Glass Sheets

Pro-Expand Glass Sheets

The Pro-Expand Glass Sheet is an advanced insulating material reinforced by a glass mat, designed to provide excellent rigidity and insulating properties. Its core feature lies in its thermal expansion capability: upon heating, the fiberglass mat rapidly expands to fill surrounding spaces. During this expansion, the plate generates small interspaces that easily absorb varnish, allowing it to cure seamlessly together with other components. Impressively, its thermal expansion rate exceeds 80% under 180℃.

Key Benefits & Product Application Cutting this sheet into pads and utilizing them as insulation strips effectively solves the common problem of motor slot wedge looseness caused by long-term operation. This innovative solution ensures reliable motor operation, significantly improving both the performance and the service life of the motor.

Industrial Uses This material is mainly utilized for:

  • AC and DC motor and generator insulation strips and pads.

  • Fixing coils and cores.

  • Spacers or lashing materials in various coils within electric motors and power generators.

Basic Specifications

  • Thickness Range: Available in 0.5mm, 0.7mm, 1.0mm, 1.5mm, 2.0mm, and 2.5mm

  • Laminate Size: 1000 x 600mm, 1000 x 1200mm

  • Standard Colors: Red, White

  • Thermal Grades: B, F, H
CNC Machining & Customization Capabilities
  • Custom Machining Scope: Custom cut-to-size panels and CNC components based on drawings (PDF, DWG, STEP).
  • Max Equipment Processing Area: Up to 2500mm × 2500mm (facility equipment limit).
  • Machining Thickness: Machinable thickness strictly per raw material stock limits or custom stacked/molded specs.
  • Machining Accuracy: Standard tolerance ±0.1mm; Precision tolerance up to ±0.02mm.
Quality Certificates & Compliance
  • ISO 9001 Certification: Certificate No. 04425Q10157R2S (Valid to Feb 17, 2028)
  • UL Recognition: UL File No. E538818
Ordering & Logistics Information
  • Minimum Order Quantity (MOQ):
    • Sheets & Rods: 500 kg
    • Tubes: 100 kg
    • CNC Machined Parts: 100 pcs
  • Lead Time: Quoted individually per project specifications and order volume.
  • Samples: Material samples are available upon request for testing and evaluation.

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Frequently asked questions
Which international standards does your material comply with?

Our materials comply with IEC, NEMA, DIN, ASTM, and UL standards. We provide direct equivalents to NEMA grades (e.g., G10, FR4, G11, G7, GPO-3) and IEC EPGC series.
Do you provide custom CNC machining services based on drawings?

Yes. Operating over 100 CNC machining centers, we manufacture custom-shaped parts from your drawings (PDF, DWG, STEP) with machining accuracy up to ±0.05mm.
Under which quality management system do you operate?

Production runs under an ISO 9001 compliant quality system. In-house test reports for electrical, mechanical, and thermal properties as well as CoC certificates are available upon request.
What is your Minimum Order Quantity (MOQ) and lead time?

Our products are manufactured at our Beijing production facility. We carefully select our manufacturing partners to ensure our products are high quality and a fair value.
How much does shipping cost?

Shipping is calculated based on your location and the items in your order. You will always know the shipping price before you purchase.

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