Self-Bonding Enameled Copper Round Wire (130/155/180/200 °C)

Thermal Class: 130/155/180/200 °C
Dimension: 0.040-0.80 mm; AWG 20-46
Application: frameless coils, servo coils, sensors

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Estimated Delivery:Oct 31 - Nov 04

Self-Bonding Enameled Copper Round Wire (Class 130/155/180/200)

Technical Specifications

130 °C / 155 °C / 180 °C / 200 °C 0.040 – 0.80 mm IEC 60317 / NEMA MW 1000 / GB/T 6109

Product Name	Self-Bonding Enameled Copper Round Wire
Enamel Code	QATY – self-bonding overcoat over UEW (QA), PEW (QZ) or EIW (QZY) base enamel
Conductor	Electrolytic copper, Cu ≥ 99.95%
Diameter Range	0.040 – 0.80 mm
Thermal Class	130 °C / 155 °C / 180 °C / 200 °C
Insulation Grade	Grade 1, Grade 2, Grade 3
Bonding Method	Heat bonding, solvent bonding or alcohol bonding
Colour	Natural amber, red, blue, green; custom colours on request
Standards	IEC 60317, NEMA MW 1000, GB/T 6109, JIS C 3202
Compliance	RoHS, REACH
Packing	PT-15 – PT-270 spool, 5 – 60 kg per spool

Product Overview

Self-bonding enameled copper round wire carries an additional thermoplastic bonding layer over the base enamel. Once a coil is wound, the bonding layer is activated by heat, solvent or alcohol and cures turn-to-turn, producing a mechanically rigid coil that requires neither a bobbin nor varnish impregnation.

The grade is supplied from 0.040 to 0.80 mm across thermal classes 130 to 200, and is available in a wide family of variants so that bonding behaviour can be matched precisely to the winding process and operating environment.

Key Advantages

Dual manufacturing hubs in Changzhou and Foshan, China, covering both fine-gauge and heavy-gauge production.
Full production range from 0.04 mm to 2.50 mm, supporting everything from micro-motors to large power equipment.
Monthly output of approximately 3,000 tons, with stable capacity for repeat and high-volume programmes.
ISO 9001 and ISO 14001 certified quality and environmental management systems.
RoHS and REACH compliant insulation systems for European and North American markets.
Wire manufactured in accordance with IEC, NEMA, GB and JIS international standards.
Rigid coils without bobbins, tie cords or varnish impregnation.
Lower assembly cost and shorter production cycle.
Available in a broad range of bonding and environmental variants.

Product Features

Excellent thermal shock resistance and high mechanical strength.
Continuous operation at temperatures up to the rated thermal class.
Uniform bonding layer for consistent coil rigidity.
Good flexibility for tight bend radii.
Direct solderable in the solderable variant.
Consistent quality suitable for automated coil production.

Typical Applications

Complex winding structures and frameless coils in electrical equipment.
Deflection coils for display tubes.
Special-shaped coils for servo motors.
Various micro-motor coils and miniature actuators.
Voice coils, sensors and compact inductors.

Packing & Delivery

Spool Type	PT-15 – PT-270 plastic spool, or plywood spool for heavy-gauge and large-volume orders
Spool Weight	5 – 60 kg per spool (flat wire spools typically 30 – 150 kg)
Inner Packing	Moisture barrier wrap to protect the enamel film during transport
Outer Packing	Carton boxes on pallets, or plywood cases for sea freight
Customisation	Spool size, spool weight and pallet configuration can be tailored to your handling equipment

Quality Assurance & Certifications

Quality management system certified to ISO 9001; environmental management certified to ISO 14001.
Insulation systems compliant with RoHS and REACH directives for EU and North American supply chains.
Routine electrical and dimensional testing on every production batch before release.
Traceability maintained from raw conductor lot through to finished spool.
Products manufactured to IEC, NEMA, GB and JIS dimensional and performance standards.

Enamel Type Reference

The enamel designations below are the international equivalents of the Chinese GB codes. All five enamel systems are available on copper, aluminium and copper-clad aluminium conductors, and can be combined with the insulation grades and thermal classes shown on this page.

GB Code	International Code	Enamel Type	Thermal Class / Feature
QA	UEW	Polyurethane Enameled Wire	Direct solderable; 130 / 155 / 180 °C
QZ	PEW	Polyester Enameled Wire	130 / 155 °C
QZY	EIW	Polyesterimide Enameled Wire	180 °C
QXY	AIW	Polyamide-Imide Enameled Wire	200 / 220 / 240 °C
Q(ZY/XY)	EI/AIW (PEI/PAI)	Polyesterimide / Polyamide-Imide Composite	200 °C

Overseas customers normally work with the international codes (UEW, PEW, EIW, AIW). When specifying a grade, please state the international code together with the required thermal class, for example UEW 155 °C or EI/AIW 200 °C.

FAQ

Which self-bonding variant should I choose?

It depends on your bonding process and the operating environment. Direct-solderable variants suit lines that terminate by soldering, refrigerant-resistant variants are required for hermetic compressors, and self-lubricating variants reduce friction where coils must be inserted into tight slots. Our engineers will match the variant to your process.

Can the bonding layer damage the base enamel?

No. The bonding layer is applied over the fully cured base enamel and is designed to be compatible with it. Correctly specified and processed, the finished coil retains the electrical and thermal performance of the base wire.

Can you produce custom diameters, colours and thermal classes?

Yes. As a manufacturer operating two production bases, we can customise conductor diameter, enamel build, colour and thermal class to match your drawing or reference sample. Send us your specification and we will confirm feasibility and tooling lead time.

Do you provide samples for evaluation?

Yes. Standard specifications can be supplied as free samples for qualification testing; freight is normally arranged on a collect basis. Customised specifications may require a small sample charge, which is credited against your first bulk order.

What is the typical lead time?

Standard specifications are typically dispatched within 7 to 15 working days after order confirmation. Lead time for customised or high-volume orders is confirmed at the quotation stage.

How is the wire packed for export?

Wire is wound on plastic or plywood spools, individually wrapped to prevent moisture and mechanical damage, then packed in carton boxes on pallets or in plywood cases. Packing is suitable for both sea and air freight, and customised spool sizes and pallet configurations are available.

What documentation is supplied with each shipment?

Each shipment is accompanied by a packing list, commercial invoice and certificate of origin where applicable. Inspection and test reports covering conductor diameter, enamel thickness, elongation, flexibility and breakdown voltage can be provided on request.

Request a Quotation

Need Pricing or a Technical Datasheet?

Send us your conductor size, thermal class and quantity requirement. Our engineers will confirm the correct grade and enamel build, and issue a formal quotation within one working day.

Send Inquiry

Self-Bonding Enameled Copper Round Wire (130/155/180/200 °C)

Thermal Class: 130/155/180/200 °C
Dimension: 0.040-0.80 mm; AWG 20-46
Application: frameless coils, servo coils, sensors

get a quote

Technical Specifications

Product Overview

Key Advantages

Product Features

Typical Applications

Packing & Delivery

Quality Assurance & Certifications

Enamel Type Reference

FAQ

Need Pricing or a Technical Datasheet?

Can I customize the packaging?

Collapsible tab heading?

How can I get a quotation?

Can I get a sample first? How long does it take?

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