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Shanxi Jurun Technology Co., Ltd., a trusted manufacturer based in Taiyuan, Shanxi - China's industrial heartland, specializes in premium Mill Certified Electrical Pure Iron Coils. Our coils deliver exceptional magnetic permeability and minimal core loss, engineered specifically for high-performance electromagnetic applications. Backed by comprehensive test reports, we guarantee material traceability and consistent quality that meets rigorous industrial standards. With over a decade of metallurgical expertise, we provide OEMs and precision engineering firms with the foundational material required for reliable electromechanical systems.
Core Advantages of Our Electrical Pure Iron Coils:
- Ultra-Low Core Loss: Minimizes energy wastage in alternating current applications through controlled silicon content and annealing processes.
- High Magnetic Permeability: Achieves μmax values exceeding 15,000 mH/m for superior magnetic flux conduction in sensors and actuators.
- Precision Dimensional Tolerances: Strictly controlled thickness (±0.02mm) and width (±0.5mm) ensure seamless integration into automated production lines.
- Reduced Eddy Current Loss: Laminated grain structure optimized through specialized rolling and heat treatment protocols.
Technical Specifications:
| Parameter | Standard Value | Testing Standard |
| Resistivity | 0.12 μΩ·m | ASTM A932 |
| Coercive Force (Hc) | < 72 A/m | IEC 60404-4 |
| Surface Insulation | Optional C3/C5 coating | IEC 60404-11 |
| Tensile Strength | 280-320 MPa | ISO 6892-1 |
Detailed Test Documentation Includes:
- Mill Test Certificate (MTC) with heat number traceability
- Chemical Composition Analysis (C, Si, Mn, P, S, Al content)
- Full Magnetic Property Report (B-H curve, core loss at 1.0T/50Hz)
- Mechanical Properties Test (yield strength, elongation)
- Surface Roughness Measurement (Ra ≤ 0.8μm typical)
End-Use Applications:
Ideal for manufacturing:
✓ Magnetic shielding components
✓ Relay cores and solenoid valves
✓ High-precision instrument transformers
✓ Linear motors and voice coil actuators
✓ Vacuum interrupters in power systems
Why Partner with Shanxi Jurun:
Operating from Shanxi Province – China's steel production hub – we leverage direct access to raw materials and advanced rolling mills. Our vertically integrated processes enable strict control over purity levels (99.8%+ Fe content) and magnetic homogeneity. Each coil undergoes 100% non-destructive testing before shipment. We maintain an average 99.3% on-time delivery rate to global clients in the energy, automotive, and industrial automation sectors. Contact our technical team today for customized specifications and volume pricing.
Frequently Asked Questions:
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Q: What is the lead time for 20MT orders?
A: Standard orders ship within 15-25 days after confirmed specifications. -
Q: Can you provide coils with specific magnetic aging properties?
A: Yes, we offer stabilization annealing to minimize magnetic aging (≤ 3% degradation). -
Q: Are test reports certified by third-party labs?
A: Mill certifications are issued by our accredited internal lab; third-party certification is available upon request. -
Q: What packaging prevents corrosion during ocean freight?
A: Coils are oiled, VCI wrapped, and crated in dehumidified wooden cases with desiccant packs. -
Q: Do you supply slit coils with edge protection?
A: Edge-guarded slitting is standard with protective plastic caps on coil IDs/ODs. -
Q: How do you ensure batch-to-batch consistency?
A: Statistical process control monitors 12 magnetic/mechanical parameters throughout production.
Send Inquiry to This Supplier
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