Donglai, Zhangjiagang City, Jiangsu,China 215600
SKY BLUER provides advanced enamelled rectangular copper wire production lines integrating precision rolling, annealing, and enamelling systems. Our solution enables manufacturers to convert round copper wire into high-precision rectangular conductors, followed by insulation coating, ensuring stable quality, high efficiency, and compliance with international standards.
Enamelled rectangular copper wire is a flat conductor with a rectangular cross-section coated with an insulating enamel layer.
Compared with round wire, it offers:
It is widely used in high-efficiency electrical equipment where performance and size optimization are critical.
Enamelled rectangular copper wire is used in a wide range of industries:
Rectangular copper wire production follows international standards such as:
Key technical requirements include:
Typical Size Range:
Dimensional Tolerances:
Size Range Tolerance
≤ 3.15 mm ±0.030 mm
3.15 – 6.30 mm ±0.050 mm
6.30 – 12.50 mm ±0.070 mm
Corner Radius (R):
The enamelled rectangular copper wire production line typically includes:
Multi-pass rolling system converts round wire into rectangular shape with high dimensional accuracy.
Multi-layer coating system with controlled curing ovens ensures uniform insulation.
Final product is cooled and wound into spools for packaging and transport.
SKY BLUER is a full-solution provider for rectangular copper wire production, not just an equipment supplier.
Our rolling technology enables:
We also provide complete support for:
From raw material to finished enamelled wire, we deliver a complete and customized production solution.
Our rolling mills are designed for high precision forming of rectangular copper conductors.
Key Features:
This allows manufacturers to achieve consistent rectangular geometry with excellent surface quality.
Our enamelling equipment ensures reliable insulation coating with:
The system can be configured for different thermal classes and insulation requirements.
We provide complete turnkey solutions for rectangular copper wire manufacturing plants:
This ensures customers can start production efficiently with optimized workflow and stable output.
Rectangular copper wire offers significant advantages over traditional round wire, especially in applications where efficiency, space utilization, and thermal performance are critical.
By using a rectangular cross-section, the conductor can achieve a tighter winding structure with fewer gaps, improving the overall performance of electrical equipment.
Key advantages include:
Rectangular geometry allows more copper to be packed into the same space, increasing power density.
Reduced air gaps and optimized winding structure help lower electrical losses.
Better conductor utilization leads to more efficient current transmission.
Enables smaller and lighter electrical equipment with the same output performance.
Improved heat dissipation due to increased contact area and tighter winding arrangement.
These advantages make rectangular wire the preferred choice for modern high-performance electrical equipment.
Every project is different. We provide customized configurations based on:
If you are planning to produce enamelled rectangular copper wire or build a complete production line, contact us for a tailored solution.
Our engineering team will help you design a system that meets your technical requirements and production goals.