What the Customer Needed
Our customer, based near Zurich, buys copper wire for demanding electrical applications. This order covered four diameters - 0.071 mm, 0.10 mm, 0.21 mm and 0.26 mm - in two thermal classes (155 °C and 180 °C) and two insulation grades (QA-1 and QA-2).
The tricky part wasn't the wire itself. Like most European buyers, they needed full documentation with every delivery: a manufacturing and control plan (PFC), chemical analysis, technical data sheets, a REACH SVHC declaration and a RoHS II declaration. We had to get the product and the paperwork right at the same time.
purchase order for GB6109 copper wire from Swiss customer
| Destination | Switzerland (Zurich) |
| Product | GB6109 enameled copper wire (magnet wire), 4 specifications |
| Quantity | 400 kg (4 × 100 kg) |
| Thermal classes | 155 °C / 180 °C |
| Insulation grades | QA-1 / QA-2 |
| Production lead time | 8 days after receipt of prepayment |
| Quality standard | Mill inspection final; original MTC provided |
| Compliance documents | PFC, chemical analysis, technical data sheets, REACH SVHC declaration, RoHS II declaration |
| Trade terms | FCA Shanghai |
What We Supplied
We produced all four specifications in a single run, each packed in 100 kg units:
| No. | Specification | Diameter | Thermal Class | Insulation Grade | Quantity |
|---|---|---|---|---|---|
| 1 | FILO RAME 0.071 F | 0.071 mm | 155 °C | QA-2 | 100 kg |
| 2 | FILO RAME 0.10 F | 0.10 mm | 155 °C | QA-1 | 100 kg |
| 3 | FILO RAME 0.21 H | 0.21 mm | 180 °C | QA-1 | 100 kg |
| 4 | FILO RAME 0.26 H | 0.26 mm | 180 °C | QA-1 | 100 kg |
Everything was made to the GB6109 standard, within a ±3% size tolerance. We promised production would start within 8 days of the prepayment, and that's what happened.
proforma invoice for 400kg GB6109 copper wire
Production and Quality Control
Every batch was weighed and checked before packing. Each unit came in at 125.0 kg on the scale, quality was confirmed by mill inspection, and the customer received the original MTC with the goods.
The consignment flew from Beijing to Zurich - 125 kg, 0.29 CBM, HS code 854411 - under FCA Shanghai terms, and arrived in Switzerland on schedule.
Documentation for European Customers
For European buyers, the documents matter as much as the wire. This order shipped with:
Original MTC (Mill Test Certificate)
Manufacturing and control plan (PFC)
Chemical analysis and mechanical characteristics
Technical data sheets and confirmed drawings
REACH SVHC declaration (Regulation 1907/2006/EC)
RoHS II declaration (Directive 2011/65/EU)
These are standard for our exports to Europe.
Production finished within the agreed lead time, and the full 400 kg order reached Switzerland with all the documents. The customer received exactly what they ordered - the right diameters, thermal classes and grades, packed for safe international shipping.
Our Copper Product Range
Enameled wire is only part of what we do. We also supply:
| Product Category | Typical Forms & Applications |
|---|---|
| Copper Heat Exchanger Tube | Tubes for heat exchangers, condensers and HVAC systems |
| Copper Plate & Sheet | Flat products for busbars, industrial plates and fabrication |
| Copper Bar & Rod | Round, square and hex bars for machining and electrical connectors |
| Copper Pipe & Tube | Piping for plumbing, refrigeration, air conditioning and industry |
| Copper Wire | Enameled / magnet wire (GB6109), bare and tinned wire for motors, transformers and coils |
| Copper Strip | Precision strip for transformers, relays, connectors and stamping parts |
| Copper Pipe Fittings | Elbows, tees, couplings and flanges for piping systems |
| Copper Machined Parts | Custom-machined components for electrical, mechanical and OEM applications |
Production Equipment
Annealing Furnace
Automatic Straightening Machine
CNC Machining Center
Cold Drawing Machine
Continuous Casting Line
Hot Extrusion Press
Polishing Machine
Precision Saw Cutting Machine
Inspection & Quality Control
Chemical Composition Analysis
Dimensional Inspection
Mechanical Property Testing
Electrical Conductivity Testing
Hardness Testing
Surface Quality Inspection
Hydrostatic Testing
Eddy Current Testing (ECT)
| Inspection Item | Purpose |
|---|---|
| Chemical Composition Analysis | Verify alloy composition |
| Dimensional Inspection | Check OD, ID, thickness & tolerance |
| Mechanical Property Testing | Tensile strength, yield strength & elongation |
| Electrical Conductivity Testing | Verify conductivity performance |
| Hardness Testing | Confirm material hardness |
| Surface Quality Inspection | Check scratches, dents & defects |
| Coating Thickness Inspection | Measure plating thickness (if applicable) |
| Hydrostatic / Air Pressure Testing | Leak testing for tubes & fittings |
| Eddy Current Testing (ECT) | Detect surface and internal defects |
| Packaging Inspection | Verify labels, quantity & export packaging |
FAQ
What is GB6109 enameled copper wire?
GB6109 is the Chinese national standard for enamelled round copper wire (winding wire, also called magnet wire). It defines the requirements for the copper conductor, the insulation film and the finished wire, including diameters, thermal classes and insulation grades. Our wire is produced to this standard, with a size tolerance of ±3%.
What do QA-1 and QA-2 mean?
QA-1 and QA-2 describe the thickness of the insulation film on the wire. QA-2 has a thicker enamel coating than QA-1. Thicker insulation provides higher dielectric strength and is usually chosen for more demanding operating conditions - your application engineer will pick the right grade for the job.
What is the difference between the 155 °C and 180 °C thermal classes?
The thermal class tells you the maximum continuous operating temperature of the wire. Class 155 (F) means the wire can run continuously at up to 155 °C, and class 180 (H) at up to 180 °C. Higher thermal classes are used where motors, transformers or coils run hotter.
Which documents do you provide for European customers?
Every export to Europe ships with the original MTC (Mill Test Certificate), a manufacturing and control plan (PFC), chemical analysis, technical data sheets, a REACH SVHC declaration and a RoHS II declaration - the documents European buyers usually need for compliance and traceability.
What is the production lead time?
For this order, production started within 8 days of receipt of the prepayment. Lead time depends on specification, quantity and the current production schedule - tell us your requirements and we'll confirm a date right away.
Do you ship to Switzerland and other European countries?
Yes. This order was delivered to Switzerland by air, and we regularly arrange both air and sea freight to destinations across Europe. We'll recommend the most practical and economical shipping option for your delivery address.
Which copper products do you supply besides enameled wire?
Besides copper wire, we supply copper heat exchanger tubes, plates and sheets, bars and rods, pipes, strips, pipe fittings and machined parts - see the product range table above. If you need something in copper, ask us.
Tell us your specification (diameter, thermal class, insulation grade, quantity, destination), and we'll come back with a quotation and lead time.
