Aluminum winding wire is a conductive wire, typically made from electrical-grade aluminum (EC grade), used to create electromagnetic coils. Its primary applications include motors (especially for EVs and HVAC), transformers, inductors, solenoids, and generators, where its excellent conductivity and lightweight properties offer cost and performance advantages over copper in many designs.
The core difference is the base conductor material. Aluminium enamelled wire uses an aluminum core, offering significant weight and cost savings but requires about 1.6 times the cross-sectional area for equivalent conductivity to copper. Copper enamelled wire has higher conductivity and is often mechanically stronger, making it suitable for applications where space is extremely limited or tensile strength is critical.
UEW and PEW are insulation material type identification for enameled wire, usually used to indicate the composition of the paint film and the heat resistance level of the enameled wire.
In Chinese national standards, these types have corresponding codes, such as PEW corresponding to QZ and UEW corresponding to QA
Enamelled winding wire provides a thin, uniform, and highly dielectric insulation layer directly bonded to the conductor. This allows for compact, high-density windings, improved heat dissipation, enhanced reliability by preventing turn-to-turn shorts, and simplifies the automated winding process compared to using separate tape or sleeve insulation.
The aluminum winding wire price is significantly lower per kilogram than copper wire, primarily due to the lower raw material cost of aluminum. However, for equivalent electrical performance, you need more aluminum (larger cross-section).
Key factors affecting aluminium enamelled winding wire price include: Aluminum rod ( LME or SMM aluminum price) and Varnish coating type.
1 Thin wire price is higher than thick type ( 0.15-2.50MM), when Varnish type and thermal class are confrimed.
2 High thermal class wire price will be more expensive than low thermal class type, when wire size is confirmed.
3 Order quantity (bulk discounts)
4 Packaging (spool size, type)
Enameled copper wire is a copper conductor coated with a thin, insulating layer of polymer enamel (e.g., polyurethane, polyester, polyimide). This insulation allows the wire to be wound tightly into coils without short circuits. It is the most common winding wire for applications demanding the highest conductivity in minimal space, such as precision motors, small transformers, and high-frequency inductors.
PEW 130/155 : QZ 130/155
UEW 155/180: QA 155/180
EIW 180 : QZY 180
EI-AIW 200/220: QZYXY 200/220
AIW 220: QZY 220
Not directly. A design substitution requires careful re-engineering. To achieve the same resistance, the aluminum wire must have a larger cross-sectional area (~1.6x). This affects the winding space, slot fill, heat dissipation, and mechanical connections (terminations must be designed for aluminum). Consulting with our engineers is recommended for a successful transition.
Common thermal classes per IEC standards include:
Class 130 (B): Up to 130°C
Class 155 (F): Up to 155°C
Class 180 (H): Up to 180°C
Higher classes use more advanced insulation like polyester-imide or polyamide-imide.
Selection is based on:
Required current carrying capacity (ampacity).
Available winding space/slot size.
Desired resistance/impedance of the finished coil.
Thermal considerations (heat generated vs. dissipated).
Our technical team can assist with calculations based on your specific motor or transformer parameters.
Yes, at Rongda Wire, we specialize in providing custom solutions. We can produce aluminium enamelled winding wire to your exact specifications regarding conductor alloy, diameter tolerance, insulation type and thickness, thermal class, and packaging. Contact us with your project requirements for a tailored quotation.
From 0.05-2.50mm enameled round copper wire, this is my company machine can make range.
We can supply the samples as per the customers’ requirements freely: to customer office- about 1KG wire, or to customer china forwarder agent company- 2-3KG wire.
4 types.
PEW - magnetic copper wire
Polyester Film Insulated Round Copper Magnet Wire Thermal Class F (Single and Heavy)
UEW - insulated copper winding wire
Polyurethane Film Insulated Round Copper Magnet Wire (F and H Thermal Class)
EIW - insulated winding wire
Polyester-imide Film Insulated Round Copper Magnet Wire Thermal Class 180
EI-AIW - polyimide magnet wire
Polyamide over Coated with Polyester-imide Insualted Round Magnet Copper Wire Thermal Class C
Always a pre-production sample before mass production; Always final Inspection before Packing.
If china market normal packing (PT type spool) and factory has no stocks, 0.05-0.20 Min order is 500KG, 0.20-2.50 Min order is 800KG each sizes.
My factory enamel wire price depends on china market copper price, it is not stable. but most time, it is from 9.00USD to 12.00USD per KG.
Polyurethane ECCA Wire QA/155 (180) Type 0.08-1.30MM
Polyesterimide ECCA Wire QZY/180 Type 0.13-1.30MM
Polyamide-imide ECCA Wire Q (ZY-XY)/200 Type 0.13-1.30MM
Copper Clad Aluminum Annealing Wire
155C Modified Polyester Enameled Aluminum Wire
155C Polyurethane Enameled Aluminum Wire
180C Polyesterimide Enameled Aluminum Wire
200C Polyamide-imide Enameled Aluminum Wire
Polyester Film Insulated Round Copper Magnet Wire Thermal Class F (Single and Heavy)
Polyurethane Film Insulated Round Copper Magnet Wire (F and H Thermal Class)
Polyester-imide Film Insulated Round Copper Magnet Wire Thermal Class 180
Polyamide over Coated with Polyester-imide Insualted Round Magnet Copper Wire Thermal Class C
Sample order will be neutral packaging.
If order is more than 300KG, will adopt pallet packing.
This depends on which sizes and factory stocks amount.
Usually, less than 0.20MM wire Min order is 300KG each sizes.
More than 0.50MM wire Min order is 500KG each sizes.
If factory have stocks, more than 100kg we can arrange loading.
Accepted Delivery Terms: FOB, CFR, CIF, EXW
Accepted Payment Currency: USD, CNY.
Accepted Payment Type: T/T, D/P D/A.
Language Spoken: English, Chinese.
