High‑Performance C1100 Copper Tape / Foil for Power & Transformer Industry
1. Product Introduction
C1100 copper tape / foil is a high‑purity electrolytic copper material with ≥99.9% Cu and 98–100% IACS conductivity. It features excellent electrical conductivity, thermal stability, ductility, and processability, making it an irreplaceable key material for power transformers, reactors, cables, switchgears, and new energy power systems.
| Item | Specification |
|---|---|
| Material Grade | C1100 Pure Copper |
| Purity | ≥99.9% |
| Conductivity | 98–100% IACS |
| Thickness | 0.1 mm – 3.0 mm |
| Width | 15 mm – 1220 mm |
| Edge | Smooth, burr‑free (high‑speed trimming) |
| Surface | Clean, oil‑free, anti‑tarnish optional |
2. Production & Processing Flow
① Raw Material
High‑purity cathode copper (≥99.95%) ensures low resistance and stable performance.
② Melting & Continuous Casting
Controlled atmosphere melting and casting to avoid oxidation and inclusions.
③ Hot Rolling + Cold Rolling
Multi‑pass rolling to achieve precise thickness and uniform structure.
④ Annealing
Intermediate and final annealing to restore ductility and eliminate internal stress.
⑤ Precision Slitting & High‑Speed Trimming
Professional slitting line + trimming technology ensures no burrs, no cracks, no sharp edges, critical for high‑voltage insulation safety.
⑥ Surface Treatment
Degreasing, cleaning, passivation, anti‑tarnish coating available.
⑦ Inspection
Conductivity, dimension, surface, edge, tensile, hardness full inspection.
3. Secondary Processing Services
Precision slitting to custom width
Cut to length (sheet / strip)
Surface passivation & anti‑tarnish treatment
Rewinding, labeling, customized coil ID/OD
4. Packaging & Export Shipping
Inner: anti‑rust paper + VCI film + plastic film
Outer: fumigated wooden pallet / wooden box
Moisture‑proof, shock‑proof, oxidation‑proof for long sea transportation
Custom packaging logo & label available
5. Key Applications in Power & Transformer Industry
① Transformer Winding Material
Distribution transformers
Power transformers
Dry‑type transformers
Amorphous alloy transformers
Rectifier transformers
Furnace transformers
② Transformer Electrostatic Shield & Isolation Layer
Interlayer electrostatic shielding
Suppress partial discharge
Reduce electromagnetic interference
Improve insulation safety
③ Reactor & Inductor Coils
Shunt reactors
Series reactors
Filter inductors
Smoothing chokes
④ Power Cable Shielding
MV / HV power cable copper tape shield
Metallic sheath reinforcement
Grounding and anti‑interference layer
⑤ Busbar & Electrical Connections
Copper busbar
Switchgear components
Distribution cabinet connections
Grounding system conductors
⑥ New Energy Power Equipment
Wind power transformers
Solar inverter inductors
Energy storage transformer components
EV charging station transformers
⑦ Other Power Applications
High‑voltage switchgear
Insulation matching components
Electromagnetic shielding parts
Grounding tapes for substations
6. FAQ (Frequently Asked Questions)
Q1: Why use C1100 copper tape in transformers?
A: C1100 has ultra‑high purity and conductivity, which reduces load loss, improves efficiency, and ensures stable long‑term operation. Good ductility makes winding easier.
Q2: Why are burr‑free edges important?
A: Burrs cause electric field concentration, partial discharge, insulation breakdown, and short circuit. Our trimmed copper tape greatly improves safety and service life.
Q3: Can you produce custom sizes for transformers?
A: Yes. We support customized thickness, width, length, hardness, and surface treatment according to drawings.
Q4: Do you provide anti‑tarnish treatment?
A: Yes. Passivation and anti‑tarnish coating are available to prevent oxidation during storage and transportation.
Q5: What packaging do you use for export?
A: Standard export packaging with anti‑rust, VCI, moisture‑proof, and wooden pallet / wooden box protection.
Q6: What is your typical lead time?
A: 2–3 weeks for standard products; 3–4 weeks for customized sizes.
Q7: Can you supply large coils for automatic winding lines?
A: Yes. We can provide large outer diameter coils suitable for high‑speed automatic transformer winding machines.
Q8: Do you support sample orders?
A: Yes. Free samples are available for quality verification; customers bear shipping cost.
7. Closing
We are a professional supplier of C1100 copper tape / foil for power and transformer industries worldwide. With stable quality, precise dimensions, burr‑free edges, and flexible customization, we help you improve product performance and reduce failure rates.
Welcome to contact us for quotations, samples, and technical support.