Beilun Metal delivers precision-engineered pure iron rotors designed for motors, generators, and electromagnetic systems requiring unmatched magnetic performance, durability, and energy efficiency. With purity levels up to **99.99%**, our rotors minimize energy loss and maximize operational reliability across industries.
Technical Specifications
|
Parameter |
Specifications |
|
Material Grade |
ASTM A848, DIN 17405, IEC 60404-8 |
|
Purity Level |
99.9% (Commercial Pure Iron) to 99.99% (Ultra-Pure Iron) |
|
Core Loss (at 1.5T/50Hz) |
≤3.5 W/kg (ultra-low hysteresis and eddy current losses) |
|
Saturation Flux Density |
≥2.0 T |
|
Dimensions |
Outer Diameter: 20 mm – 1000 mm |
|
Surface Finish |
Machined, Annealed, Phosphated, or Nickel-Plated |
|
Tolerance |
±0.05 mm (dimensional), ±1° (angularity) |
|
Certifications |
ISO 9001, IATF 16949, RoHS, REACH |
Chemical Composition
Our rotors are crafted from ultra-pure iron with tightly controlled impurities to optimize magnetic and mechanical performance:
|
Element |
Beilun Pure Iron Rotor (%) |
Industry Standard (%) |
Impact on Rotor Performance |
|
Iron (Fe) |
≥99.9 |
≥99.5 |
Maximizes magnetic flux density. |
|
Carbon (C) |
≤0.005 |
≤0.02 |
Reduces brittleness and eddy current loss. |
|
Silicon (Si) |
≤0.01 |
≤0.03 |
Enhances thermal stability. |
|
Sulfur (S) |
≤0.002 |
≤0.005 |
Prevents hot cracking during machining. |
|
Phosphorus (P) |
≤0.004 |
≤0.01 |
Improves corrosion resistance. |
|
Manganese (Mn) |
≤0.015 |
≤0.03 |
Reduces magnetic aging. |
Key Advantages of Beilun's Pure Iron Rotors
|
Feature |
Benefit |
Industry Application |
|
Ultra-Low Core Loss |
Reduces energy waste by up to 30%, improving motor/generator efficiency. |
Electric vehicles, industrial motors. |
|
High Magnetic Permeability |
Ensures rapid magnetization/demagnetization for responsive performance. |
Servo motors, robotics, HVAC systems. |
|
Precision Balancing |
Minimizes vibration and noise for smoother operation. |
Wind turbines, aerospace actuators. |
|
Custom Geometry |
Tailored slots, grooves, and shaft bores for OEM integration. |
Pump systems, medical imaging devices. |
|
Corrosion-Resistant Coatings |
Phosphate or nickel plating extends lifespan in harsh environments. |
Marine propulsion, chemical processing. |
Applications by Industry
|
Industry |
Use Case |
Critical Requirements |
|
Automotive |
EV traction motors, starter motors |
High torque density, thermal stability. |
|
Renewable Energy |
Wind turbine generators, hydroelectric systems |
Low core loss, vibration resistance. |
|
Industrial Automation |
CNC machinery, robotic arms |
Precision balancing, high-speed performance. |
|
Aerospace |
Actuators, flight control systems |
Lightweight design, non-sparking properties. |
|
Consumer Electronics |
Household appliances, power tools |
Compact size, energy efficiency. |
Manufacturing Process & Quality Assurance
1. Advanced Production Workflow
- Vacuum Induction Melting (VIM): Ensures ultra-low oxygen/nitrogen content (<50 ppm).
- Precision Forging: Hot/cold forging for uniform grain structure and density.
- CNC Machining: Achieves tolerances within ±0.02 mm for critical dimensions.
- Stress Relief Annealing: Eliminates residual stresses post-machining.
2. Rigorous Testing Protocols
|
Test |
Method |
Standard |
Acceptance Criteria |
|
Magnetic Properties |
Epstein Frame Testing |
IEC 60404-2 |
Core loss ≤3.5 W/kg at 1.5 T/50Hz |
|
Hardness Testing |
Rockwell B Scale |
ASTM E18 |
65–85 HRB |
|
Dimensional Inspection |
CMM (Coordinate Measuring Machine) |
ISO 10360-2 |
±0.01 mm accuracy |
|
Surface Defect Detection |
Eddy Current Testing |
ASTM E309 |
Zero cracks/pits >0.1 mm |
3. Sustainability Commitment
- Recyclability: 100% recyclable material with closed-loop scrap reuse.
- Energy Efficiency: Solar-powered annealing furnaces reduce CO2 emissions by 25%.
Why Choose Beilun Metal?
- Expertise: 25+ years in high-purity iron component manufacturing.
- Custom Solutions: Prototyping to mass production with fast turnaround (15–20 days).
- Global Compliance: Meets EU, US, and Asian regulatory standards.
- Cost Efficiency: Competitive pricing via vertical integration (raw material to finished rotor).
FAQ
|
Question |
Answer |
|
Can you produce rotors with complex geometries? |
Yes, our 5-axis CNC machines handle intricate designs. |
|
Do you offer anti-corrosion coatings? |
Phosphating, nickel plating, and epoxy coatings are standard options. |
|
What's the lead time for bulk orders? |
3–4 weeks for 1–10,000 units, depending on complexity. |
|
Is material traceability ensured? |
Full batch-specific documentation (mill test reports) provided. |
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