Electrical Steel Material Inspection
Material inspection verifies electrical steel grade, thickness, surface condition, and magnetic properties to ensure materials meet production and customer requirements.
Strict material control ensures every electrical steel material meets specified grade, thickness, magnetic properties, surface condition, and dimensional requirements, providing a reliable foundation for consistent core loss, dimensional accuracy, and high-performance stator core manufacturing.
Strict Material Control for High-Performance Stator Cores
Material grade identification
Supplier certificate verification
Batch number confirmation
Specification and thickness verification
Electrical Steel Grade Verification
All incoming electrical steel materials are verified according to customer specifications and industry standards, including:
We ensure that every batch of electrical steel matches the required motor application.
Core loss testing
Magnetic flux density verification
Electrical steel performance evaluation
Magnetic Performance Testing
Electrical steel directly affects motor efficiency and power density. Material inspection includes:
These inspections help ensure stable electromagnetic performance of the finished stator core.
Thickness & Dimensional Inspection
Steel sheet thickness tolerance
Sheet size accuracy
Flatness
Surface condition
Precision inspection is performed to control:
Consistent material dimensions help achieve accurate stamping and reliable stacking quality.
Surface Quality Inspection
Surface defects
Coating quality
Rust prevention condition
Cleanliness
Each batch of silicon steel sheets is inspected for:
Good surface quality reduces production defects and improves the durability of stator cores.
Material Traceability Management
Supplier information
Material grade
Batch records
Inspection results
LLSSTATOR maintains complete material records throughout the manufacturing process, including:
This ensures full traceability from raw material to finished stator core.
Quality Assurance Before Production
Only materials that pass inspection are approved for production, providing a reliable foundation for high-efficiency EV motor stator cores.
