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Help CenterDT4C Grade Hot-Rolled Electromagnetic Pure Iron Coil for Relays and Sensors Production
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Shanxi Juli Run Technology Co., Ltd. presents premium DT4C Grade Hot-Rolled Electromagnetic Pure Iron Coils, engineered to elevate the performance of sensitive electromagnetic components. With exceptional magnetic properties and industry-compliant manufacturing, our coils serve as the foundational material for high-reliability relays and precision sensors across industrial automation and automotive sectors.
Our pure iron coils deliver consistent magnetic permeability and minimized eddy current losses, directly translating to enhanced device efficiency and extended service life. Customizable dimensions and processing options ensure seamless integration into your production workflow.
Core Technical Advantages:
- Optimal Magnetic Performance: DT4C grade purity (≥99.8%) ensures high saturation induction (≥1.50T) and low coercivity (≤96A/m), critical for responsive relay switching and accurate sensor signals.
- Low Core Loss Design: Annealed microstructure reduces hysteresis losses by up to 30% compared to standard grades, improving energy efficiency in continuous operation.
- Precision Engineering: Tight thickness tolerance (±0.03mm) and flatness control (
- Custom Fabrication Ready: Pre-annealed coils support immediate stamping, blanking, or etching without additional heat treatment.
Technical Specifications:
| Parameter | Value | Standard |
|---|---|---|
| Material Grade | DT4C Pure Iron | GB/T 6983 |
| Thickness | 0.5-3.0 mm | Customizable |
| Width | Max 1000 mm | Customizable |
| Coil ID/OD | 508mm / 1200mm | Standard |
| Surface Finish | Annealed, oxide-free | Visual inspection |
Beyond specifications, our coils undergo rigorous quality validation including Epstein frame testing for magnetic properties and ultrasonic thickness mapping. Each batch ships with Material Test Certificates detailing chemical composition and magnetic metrics.
Application-Specific Benefits:
- For Relay Manufacturers: Reduced contact bounce through faster magnetic field buildup, enabling higher switching cycles (tested to 10⁷ operations).
- For Sensor Producers: Improved signal-to-noise ratio via homogeneous permeability, critical for Hall-effect and current sensors in EV applications.
- For EMI Shielding: Effective attenuation (>40dB) of low-frequency interference in medical imaging equipment.
Partner with Shanxi Juli Run for just-in-time delivery from our Taiyuan facility. Our technical team provides free application consulting to optimize your lamination design and material utilization. Contact us today for sample requests or customized quotations.
Frequently Asked Questions:
Q1: What is the typical lead time for DT4C coils?
A: Standard specifications ship within 15 working days. Custom-cut sizes may require 20-25 days.
Q2: Can you provide coils with protective coating?
A: Optional anti-rust oil coating is available upon request for humid environment applications.
Q3: Do you test magnetic properties batch-wise?
A: Yes, we provide Epstein test reports for permeability and core loss with every shipment.
Q4: Is laser cutting recommended for this material?
A: Absolutely. Our annealed microstructure ensures clean laser cuts with minimal burr formation.
Q5: What packaging is used for overseas shipping?
A: Coils are wrapped in waterproof paper, palletized, and secured with steel strapping for ocean freight.
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