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Reduce your magnetic component spend by up to 35% without sacrificing performance. Ideal for Purchasing Managers, Technical Directors, and Operations Leaders.
Get Free Quote in 24 hResult: Your project budget inflates, production schedules slip, and ROI drops.
| Parameter | Typical Value | Unit | Tolerance |
|---|---|---|---|
| Core Material | Silicon‑steel (EI) | – | ±0 % |
| Core Size (E×I) | 50 × 25 | mm | ±0.2 mm |
| Power Rating | 500 W | W | ±5 % |
| Insulation Class | B | – | – |
| Operating Temp. | -40 ~ +85 | °C | – |
Audio Amplifier OEM – USA
Reduced transformer cost from $3.20 to $2.10 per unit (34% saving) while meeting IEC‑60950‑1 safety standards. Lead time cut from 45 days to 12 days.
Medical Imaging Equipment – Germany
Custom EI core with 0.1 % tolerance enabled compliance with ISO 13485. Project delivered 2 weeks ahead of schedule, avoiding a $45k penalty.
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“Switching to Xinchangda cut our transformer spend by 28% and the units passed our in‑house stress test on the first try. Delivery was on schedule – a rarity in our industry.”
— Mark L., Purchasing Manager, AudioTech Corp (USA)
Certificates & Compliance: CE, FCC, GS, CB, RoHS, ISO 9001, ISO 13485, VDE, SAA, HACCP/GMP, IPPC.
Core material grade, EI dimensions, winding turns, insulation class, and order volume are the primary cost drivers. By sourcing directly from our 5,000 ㎡ factory and using automated winding lines, we keep material waste below 1 % and pass the savings to you.
Yes. Our R&D team (10 engineers) offers free CAD layout and prototype testing. Typical lead time for a 5,000‑unit custom run is 14 days after design approval.
Standard terms are 30 % T/T deposit, 70 % balance before shipment. For trusted partners we accept L/C at sight or net‑30 days after delivery.
Stocked EI cores ship via DHL/FedEx within 3‑5 business days. Custom orders are air‑freighted in 7‑10 days once production is complete.
Our 24 h technical hotline ( +86 131 2825 6415 ) and email support (grace01@xinchangdadz.com) cover design validation, failure analysis, and warranty claims (12‑month limited warranty).
Only 5,000 units of the standard 50 × 25 mm EI core are left at the promotional price of $2.05 each. After that, price returns to $2.30.
Request Free Sample & QuoteRisk‑free: If the sample fails your test, we’ll cover the return shipping and issue a full refund.
Contact Options: +86 131 2825 6415 | grace01@xinchangdadz.com | WhatsApp
Linda G., Procurement Lead – GreenEnergy Inc (USA)
“The quoted price was 28% lower than any other supplier we evaluated. Quality was verified on the first batch, and the 7‑day delivery kept our project on schedule.”
Thomas H., Technical Director – MedEquip GmbH (Germany)
“Custom EI core dimensions were delivered with ±0.1 mm tolerance. The product passed ISO‑13485 audits without any re‑work.”
Sarah K., Operations Manager – AudioWave Ltd (UK)
“Xinchangda’s after‑sales support helped us resolve a minor winding issue within 4 hours. Their expertise saved us $12k in potential downtime.”
James Li, Senior Magnetics Engineer
With 18 years in transformer design and a Master’s in Electrical Engineering (University of Shanghai), James has led more than 120 OEM projects for Fortune 500 audio, medical, and renewable‑energy brands. He is the primary technical liaison for Xinchangda’s Western market and holds ISO 9001 auditor certification.
Contact: grace01@xinchangdadz.com | Phone: +86 131 2825 6415
