Product Overview
The Roll-core, engineered with high-permeability oriented silicon steel, acts as a single-phase transformer magnetic circuit to optimize electromagnetic induction while minimizing operational noise.
Technical Parameters
| Item | Specification |
|---|---|
| Core Material | 23P080 cold-rolled grain-oriented silicon steel |
| Rated Low Voltage | 240 V |
| Number of Turns | 28 turns |
| Turn Voltage (Per Turn) | 8.571 V |
| No-Load Loss | 170 W |
| Frequency | 60 Hz |
| Weight | 211.7 kg |
| Core Overall Dimensions | 567 × 352 × 200 mm |
| Window (Inner Core) Size | 345 × 130 mm |
| Structural Clearance | 111 mm (design spacing) |
roll-core drawing
Key Advantages
| Key Advantage | Technical Description & Mechanism |
|---|---|
| Optimized Energy Efficiency |
High-permeability 23P080 silicon steel winding to lower hysteresis and eddy current losses. |
| Weight Reduction | Gapless roll-core structure eliminates overlapping, reducing core weight for easier handling. |
| Acoustic Mitigation | The gapless wound structure maintains magnetic flux continuity, reducing operational noise. |
| High Material Yield | Precision cutting and winding achieve a material utilization rate exceeding 95%. |
| Short-Circuit Resilience | The compact mechanical structure enhances structural rigidity against short-circuit forces. |
Manufacturing Process & Quality Control
Manufacturing Process
- Stress-Relief Annealing: Vacuum stress-relief annealing eliminates slitting stress, fully restoring silicon steel magnetic permeability.
- Domain Refinement: Thermal processing optimizes grain domain alignment, lowering core losses by up to 30%.
- Solidification & Bonding: Specialized vacuum varnishing bonds the layers, reducing operational vibration by over 15 decibels.
Quality Control
- Dimensional Tolerance Verification: Laser measurements guarantee dimensional tolerances within ±0.2 mm for optimal mechanical alignment.
- No-Load Loss Testing: 100% automated testing ensures no-load losses remain well below international IEC standards.
- Exciting Current Analysis: Low exciting current variance limits heat generation, extending the core operating lifespan.
Logistics & After-Sales Service
Secured Bulk Shipping
Heavy-duty, vacuum-packed containers with desiccants protect the wound core from saltwater corrosion.
Anti-Vibration Transit
Sturdy wooden crating and shock-absorbing bases eliminate transit vibrations that degrade silicon steel permeability.
Seamless Field Assembly
Technical specialists provide precise alignment and mounting guidance during transformer core-and-coil assembly.
FAQ
Q: How does the factory guarantee raw material traceability for each Roll-core batch?
A: Every silicon steel coil is logged into our ERP system with its mill test certificate from receiving to final winding.
Q: Can the core clamping structure be customized to fit specific transformer tank dimensions?
A: Yes, we customize clamping frames and lifting hole configurations based on your specific mechanical drawing requirements.
Q: How does the factory manage production capacity to ensure on-time delivery for bulk orders?
A: Multiple automated CNC winding lines operate simultaneously, supported by a continuous buffer stock of raw silicon steel.
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