DT4 Motor Core Iron Rods | Xinye Taiming
Ultra-High Permeability, Low-Loss Iron Rods for High-Efficiency Electric Motors
Powering the Future of Electrification
Xinye Taiming's DT4 motor-grade iron rods are precision-engineered to optimize torque density and energy efficiency in modern electric motors. With 99.93%+ purity and advanced domain-refined annealing, our rods deliver 1.8T saturation flux density and <2.1 W/kg core loss (at 1.5T, 400Hz), making them ideal for EV traction motors, industrial servos, and aerospace propulsion systems. Compliant with IEC 60404-8-6 DT4, IATF 16949, and NEMA MG-1 standards.
Material Composition & Purity
| Element | Composition (%) | Motor Industry Standard |
|---|---|---|
| Iron (Fe) | ≥99.93 | IEC 60404-8-6 (DT4 Class) |
| Silicon (Si) | ≤0.03 | SAE J2547 |
| Carbon (C) | ≤0.012 | GB/T 3655 |
| Aluminum (Al) | ≤0.003 | JIS C 2553 |
| Manganese (Mn) | ≤0.02 | DIN EN 10106 |
| Custom formulations for high-speed (>20,000 RPM) motor applications available. |
Core Performance Advantages
1. High-Torque Efficiency
Core Loss: 1.9 W/kg @ 1.5T, 400Hz (25% lower vs. M19 laminations)
Permeability: 30,000–50,000 (adjustable via hydrogen annealing)
Hysteresis Loss: <0.3 W/kg (EN 10342 validated)
2. Precision Manufacturing
Diameter Range: 8mm–150mm (±0.08% tolerance)
Surface Finish: Phosphate-coated (3–5μm) for interlamination insulation
Grain Orientation: 90% Cube texture for reduced eddy currents
3. Thermal & Mechanical Stability
Continuous Operating Temp: 180°C (Class H insulation compatible)
Vibration Resistance: 15G @ 50–2,000Hz (ISO 10816-3 compliant)
Thermal Expansion: 11.8 ×10⁻⁶/°C (matches copper windings)
4. Noise & Vibration Control
Magnetostriction: <2 ppm (ensures <45 dB(A) motor operation)
Harmonic Suppression: 60% lower 3rd/5th harmonics vs. standard steels
Motor Application Matrix
| Motor Type | Key Benefit | Performance Validation |
|---|---|---|
| EV Traction Motors | 20% higher torque density | 650 Nm/m³ @ 5,000 RPM (WLTP tested) |
| Industrial Servos | Zero cogging design | 0.05° angular repeatability |
| Drone Propulsion | Ultra-lightweight cores | 1.2 kg/kW power-to-weight ratio |
| HVAC Compressors | 95% efficiency at partial loads | ASHRAE 90.1-2022 compliant |
Technical Specifications
| Parameter | Value |
|---|---|
| Resistivity | 10 μΩ·cm |
| Lamination Stack Factor | 98% (0.27mm thickness) |
| Coercivity | ≤35 A/m |
| Hardness | 85–100 HV |
| Rod Length | 300–5,000mm (±0.5mm/m straightness) |
| Certifications | IATF 16949, UL 1004, RoHS/REACH |
Advanced Manufacturing Process
AI-Driven Quality Control:
Real-time hysteresis loop monitoring during annealing
Laser ultrasonic testing for subsurface defects
Customizable Services:
Slitting to 0.27/0.35mm laminations (±0.005mm)
Pre-stacked cores with epoxy bonding
Ni-Zn coating for high-frequency (>1kHz) applications
Sustainability Commitment
Green Production: 30% recycled content with full IMDS reporting
Low-Energy Annealing: 20% less natural gas consumption vs. conventional methods
End-of-Life Recyclability: 100% compatible with EAF steelmaking
FAQ
Q: How do your rods improve EV motor range?
A: Our ultra-low core loss reduces energy waste, extending range by 6–8% (NEDC cycle simulation).
Q: Can you supply rods for oil-cooled motors?
A: Yes – Proprietary hydrophobic coating resists ATF fluid degradation (1,000h/150°C tested).
Q: What's the tolerance for high-speed balancing?
A: Dynamic balancing grade G1.0 achievable (ISO 21940-1).
Q: MOQ for prototype motor cores?
A: 100kg for R&D; 500kg for pre-production validation.
Why Xinye Taiming?
Motor Specialists: Partnered with 10+ global EV OEMs for next-gen motor designs
Digital Integration: Motor-CAD compatible B-H curve datasets
Rapid Prototyping: 10-day lead time for custom laminations
Package
Pure iron is typically packaged with rust-preventive oil, wrapped in plastic film, and secured with plastic or metal straps. It is then placed on wooden pallets or in wooden crates, sometimes using moisture-proof paper or vacuum packaging for extra protection during transportation and storage.
Transportation
At Taiyuan Xinye Taiming Manufacturing and Processing Co., Ltd., we efficiently deliver products worldwide, handle shipping and customs clearance, and ensure fast, safe, and hassle-free transportation to all parts of the world.
Partner
We are proud to have established strong, trusted partnerships with leading steel companies. These alliances have enabled us to enhance our operations, ensure the delivery of top-quality products, and maintain our industry leadership, driving excellence and innovation.
