Transformer Oil Duct Strips Factory Direct China Supplier, Manufacturers
High-Performance Transformer Oil Duct Strips – Factory Direct & Fully Customizable
As a premier China-based manufacturer specializing in electrical insulation, we provide high-grade Oil Duct Strips (also known as zig-zag spacers or cooling duct strips) designed specifically for power and distribution transformers. By managing our own production lines, we eliminate the middleman, offering you the most competitive wholesale prices without compromising on international quality standards.
Key Features (Why Buy From Us?)
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Direct Manufacturer Pricing: Benefit from significantly lower costs by sourcing directly from our factory in China.
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100% Customizable: We produce strips to your exact specifications, including width, thickness, length, and "gap" intervals.
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Premium Material Grade: Made from high-density insulation pressboard or Diamond Dotted Paper (DDP) for maximum dielectric strength.
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Superior Thermal Management: Engineered to create precise cooling channels, ensuring optimal oil circulation and heat dissipation.
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High Mechanical Stability: Built to withstand the high-pressure environment of transformer windings during short-circuit events.
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Rapid Lead Times: Our self-owned facility ensures flexible production scheduling and fast global delivery.
| Feature | Specification Details |
| Material | Electrical Grade Pressboard / DDP / Laminated Wood |
| Thermal Class | Class A (105°C) to Class H (180°C) |
| Thickness | 1.0mm - 8.0mm (Customizable) |
| Width | 10mm - 50mm (Customizable) |
| Standard Compliance | IEC 60641 / ASTM / GB Standards |
| Bonding | Epoxy Resin (for DDP types) |
Industrial Applications
Our oil duct strips are essential components for:
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Power Transformers: Creating cooling ducts between disk windings.
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Distribution Transformers: Maintaining structural integrity and oil flow.
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EHV/UHV Projects: Reliable insulation for high-voltage electrical grids.
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Reactors and Motors: Specialized spacing and insulation requirements.