Shanghai Husu M&E Technology Co., Ltd
| Payment Terms | T/T |
| Supply Ability | 100 tons/month |
| Delivery Time | 5-8 working days |
| Packaging Details | Spools, Cartons, Pallets, Wooden Boxes, Containers |
| Thermal Class | Class H (220°C) |
| Conductor | High-purity copper (OFC optional) |
| Insulation Material | Polyimide |
| Diameter Range | 0.10 mm – 4.00 mm (Grade 2 full series) |
| Standards | GB/T 6109.6-2008, IEC 60317-7, NEMA MW 16-C |
| Cut-through Temperature | ≥400°C (superior heat resistance) |
| Chemical Resistance | Solvent, refrigerant & radiation resistant |
| Target Frequency | High-frequency transformers, motors |
| Heat Shock | 240°C (exceptional thermal overload) |
| Packaging | PT-10 / PT-15 / PT-25 spools |
| Brand Name | CHINGCUNG |
| Model Number | QY-2/220 |
| Certification | RoHS |
| Place of Origin | Jiangsu |
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Product Specification
| Payment Terms | T/T | Supply Ability | 100 tons/month |
| Delivery Time | 5-8 working days | Packaging Details | Spools, Cartons, Pallets, Wooden Boxes, Containers |
| Thermal Class | Class H (220°C) | Conductor | High-purity copper (OFC optional) |
| Insulation Material | Polyimide | Diameter Range | 0.10 mm – 4.00 mm (Grade 2 full series) |
| Standards | GB/T 6109.6-2008, IEC 60317-7, NEMA MW 16-C | Cut-through Temperature | ≥400°C (superior heat resistance) |
| Chemical Resistance | Solvent, refrigerant & radiation resistant | Target Frequency | High-frequency transformers, motors |
| Heat Shock | 240°C (exceptional thermal overload) | Packaging | PT-10 / PT-15 / PT-25 spools |
| Brand Name | CHINGCUNG | Model Number | QY-2/220 |
| Certification | RoHS | Place of Origin | Jiangsu |
CHINGCUNG® | Special Enameled Wire Expert
Class 220 High-Temperature Resistant | Grade 2 Heavy Build Insulation | Superior Thermal Stability
|
Featured: Grade 2 (Heavy Build) Optimized for demanding insulation requirements: QY-2/220 with Grade 2 polyimide insulation provides higher dielectric strength, improved voltage endurance and reliable performance for high-voltage windings & industrial coils. Grade 1 & Grade 3 also available upon request. |
✓ Grade 1 / Grade 3 optional |
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Key Attributes
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Electrical & Thermal
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Dimensional Data (QY-2/220 Copper Round - Grade 2 focus)
|
Conductor Dia. (mm) |
Tolerance ±mm |
Min. Film Build Grade 2 (mm) |
Max. Outer Dia. Grade 2 (mm) |
Typical Breakdown (V) |
|
0.10 |
±0.003 |
0.016 |
0.125 |
≥950 |
|
0.15 |
±0.003 |
0.023 |
0.182 |
≥3200 |
|
0.20 |
±0.003 |
0.027 |
0.239 |
≥3500 |
|
0.25 |
±0.004 |
0.032 |
0.309 |
≥3900 |
|
0.30 |
±0.004 |
0.035 |
0.352 |
≥4000 |
|
0.35 |
±0.005 |
0.038 |
0.406 |
≥4300 |
|
0.40 |
±0.005 |
0.040 |
0.459 |
≥4400 |
|
0.50 |
±0.005 |
0.045 |
0.566 |
≥4600 |
|
0.60 |
±0.006 |
0.050 |
0.674 |
≥4800 |
|
0.70 |
±0.007 |
0.053 |
0.779 |
≥4800 |
|
0.80 |
±0.008 |
0.056 |
0.884 |
≥4900 |
|
0.90 |
±0.009 |
0.060 |
0.989 |
≥5000 |
※ Table shows typical Grade 2 dimensions. Full range 0.10~4.00mm available. Grade 1 & Grade 3 datasheets upon request. Custom build available for higher voltage requirements.
Why CHINGCUNG QY-2/220 Polyimide Wire?
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Class 220 Heat Resistance Continuous 220°C operation, short-term up to 400°C. Ideal for extreme environment windings. |
Grade 2 High Dielectric Heavy build insulation increases breakdown voltage by ~30% compared to Grade 1. |
Chemical & Radiation Resistant Polyimide base resists most solvents, refrigerants and radiation, extending service life. |
Precision Manufacturing In-line pinhole detection and concentricity control ensure uniform Grade 2 build. |
As a core product of the CHINGCUNG brand, the QY-2/220 polyimide enameled copper wire adopts advanced "base coat + top coat" composite curing technology, ensuring a dense and uniform insulation layer. For Grade 2 heavy build, we apply precision dies and multi-pass annealing/baking processes to guarantee film thickness deviation within ±0.003mm across 0.10~4.00mm diameters. The pinhole count is significantly lower than standard requirements. It fully complies with IEC 60317-7, NEMA MW 16-C, and GB standards. Compared to conventional polyester or polyurethane wires, QY-2/220 maintains superior electrical and mechanical properties under continuous high-temperature stress.
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Custom Attributes (Differentiators)
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Commercial & Logistics
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Typical Applications
Aerospace coils, High-temp industrial motors, Oil & drilling equipment, EV traction motors, Solenoids / actuators, Variable frequency transformers, Railway propulsion, Hermetic relays, Induction heating, Nuclear instrumentation windings
QY-2/220 polyimide enameled wire with Grade 2 heavy build is specifically recommended for high-voltage gradients, high-frequency power supplies and severe thermal environments. The heavy build reduces turn-to-turn short circuit risk and enhances overall system reliability. CHINGCUNG customers worldwide have deployed Class 220 polyimide wires in mission-critical electromagnetic components across Europe, North America, Southeast Asia and the Middle East.
Technical insight: Grade 2 vs Grade 1 – Why upgrade?
For designs that demand higher insulation safety margins, Grade 2 (heavy build) offers an average increase of 0.005~0.045mm in film thickness compared to Grade 1, depending on diameter, boosting breakdown voltage by about 30%. The QY-2/220 leverages a well-controlled polyimide application that reduces pinhole defects far below industry limits. This makes it the preferred choice for inverter-duty motors, high-voltage transformers, and any application where long-term reliability under electrical stress is crucial. CHINGCUNG provides full traceability reports and batch-to-batch consistency testing ensuring each spool meets NEMA MW 16-C and IEC 60317-7.
✅ Recommendation: For ultra-high temperature needs consider QY(F)-2/240 (Class 240) or self-bonding polyimide wires; QY-2/220 offers the best balance of performance and cost-effectiveness for most demanding industrial environments.
Shanghai Husu M&E | CHINGCUNG Strength
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§ Established in 2015, dedicated to special enameled wires, owned factories in Jiangsu & Zhejiang. § Automated production lines + in-line pinhole/concentricity inspection; monthly capacity 100 tons. § Multiple patents and ISO9001 quality system to ensure Grade 2 film precision. § Experienced import/export team providing turnkey international logistics (air/sea/courier). § Free technical support for material selection, customized insulation build & voltage rating. |
Contact us Shanghai Husu M&E Technology Co., Ltd |
Frequently Asked Questions
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Q1: Can I order a sample of QY-2/220 Grade 2 for testing? Q2: Do you offer other film grades besides Grade 2? Q3: Is QY-2/220 suitable for outgassing-sensitive environments (space/aerospace)? |
Q4: Can you customize spool sizes or winding lengths? Q5: What is the typical lead time and export documents? Q6: Main advantage vs other Class 220 polyimide wires? |
Company Details
Business Type:
Manufacturer,Exporter,Trading Company,Seller
Year Established:
2015
Total Annual:
1,000,000-10,000,000
Employee Number:
100~110
Ecer Certification：
Verified Supplier
Shanghai Husu M&E Technology Co., Ltd has been a reliable supplier of high-performance enameled wires since 2015. Under our brand CHINGCUNG, we serve global manufacturers with quality products and professional service. EVMagnetWire.com is our dedicated platform for regular enameled ... Shanghai Husu M&E Technology Co., Ltd has been a reliable supplier of high-performance enameled wires since 2015. Under our brand CHINGCUNG, we serve global manufacturers with quality products and professional service. EVMagnetWire.com is our dedicated platform for regular enameled ...
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