2022 China New Design Varnished Copper Winding Wire - SEIW 180 Solderable Polyester-imide Enameled copper wire – Ruiyuan
2022 China New Design Varnished Copper Winding Wire - SEIW 180 Solderable Polyester-imide Enameled copper wire – Ruiyuan Detail:
SEIW is composed of denatured polyesterimide as insulation which is solderable. In this case, SEIW can be resistant to high temperature as well as possesses property of soldering. It meets the needs of winding that requires soldering, high heat resistance and high impedance. Compared with conventional polyurethane of temperature rating 180C, coherence of insulation of SEIW is much more better. Insulation of SEIW also features soldering compared with regular polyesterimide, hence more convenient during operation and better work efficiency.
Characteristics:
1.Excellent performance in heat resistance, chemical resistance and corrosion resistance.
2. Physical properties are suitable for most winding.
3. It can be soldered directly at 450-520 degrees.
High temperature coils and relays, Special transformer coils, Automotive-coils, Electronic coils, transformers, Shaded pole motor coils.
Take a sample with a length of about 30cm from the same spool (for specifications of Φ0.050mm and below, eight strings are twisted together without abnormal tension; for specifications above 0.050mm, one string is good). Use a special winding bracket and put the sample into 50mm tin liquid at specified temperature. Take them out after 2 seconds and make assessment according to condition of 30mm in the middle.
Data Reference (Soldering Timetable):
Chart of soldering temperature and time of enameled copper wire with different soldering enamels
Reference
1.0.25mm G1 P155 Polyurethane
2.0.25mm G1 P155 Polyurethane
3.0.25mm G1 P155 Polyesterimide
Soldering ability is the same as copper wire.
Conductor [mm] |
Minimum film [mm] |
Overall diameter [mm] |
Breakdown Voltage Min[V] |
Conductor resistance [Ω/m,20℃] |
Elongation Min[%] |
|
Bare wire diameter |
Tolerance |
|||||
0.025 |
±0.001 |
0.003 |
0.031 |
180 |
38.118 |
10 |
0.03 |
±0.001 |
0.004 |
0.038 |
228 |
26.103 |
12 |
0.035 |
±0.001 |
0.004 |
0.043 |
270 |
18.989 |
12 |
0.04 |
±0.001 |
0.005 |
0.049 |
300 |
14.433 |
14 |
0.05 |
±0.001 |
0.005 |
0.060 |
360 |
11.339 |
16 |
0.055 |
±0.001 |
0.006 |
0.066 |
390 |
9.143 |
16 |
0.060 |
±0.001 |
0.006 |
0.073 |
450 |
7.528 |
18 |
Transformer
Motor
Ignition coil
Voice Coil
Electrics
Relay
Drawing
Paint
Annealing
Baking
Cooling
Customer Oriented,Innovation brings more Value
RUIYUAN is a solution provider, which requires us to be more professional on wires, insulation material and your applications.
Ruiyuan has a heritage of innovation, along with advancements in enameled copper wire, our company has grown through an unwavering commitment to integrity, service and responsiveness to our customers.
We look forward to continuing to grow on the basis of quality, innovation and service.
7-10 days Average delivery time.
90% European and North American customers. Such as PTR,ELSIT, STS etc.
95% Repurchase rate
99.3% Satisfaction rate. Class A supplier verified by German customer.
Product detail pictures:





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We have quite a few great team customers very good at internet marketing, QC, and dealing with kinds of troublesome trouble while in the output approach for 2022 China New Design Varnished Copper Winding Wire - SEIW 180 Solderable Polyester-imide Enameled copper wire – Ruiyuan , The product will supply to all over the world, such as: Kyrgyzstan, Istanbul, Mauritius, Our market share of our products and solutions has greatly increased yearly. If you are interested in any of our products or would like to discuss a custom order, make sure you feel free to contact us. We've been looking forward to forming successful business relationships with new clients around the world in the near future. We've been looking forward to your inquiry and order.

This is a very professional and honest Chinese supplier, from now on we fell in love with the Chinese manufacturing.
