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VSPL is an authorized importer of Cold Rolled Grain Oriented (CRGO) Steel(the basic raw material for manufacturing Lamination and Wound Cores) from reputed overseas mills in Various Grades are imported in the form of mother coils. The company maintains extensive stocks of all grades, to meet the customer’s qualitative and quantitative requirements.
- RAW MATERIAL QUALITY CHECK
A special attention is paid to ensure quality while processing raw material. All the incoming material goes through a quality check in VARDHMAN- Dr. BROCKHAUS Magnetic Material Testing Laboratory. Plus, all materials are processed on CNC Machines. Tungsten Carbide-tipped cutting tools ensure minimum burr levels and high accuracy. Quality Control checks are carried out throughout the manufacturing process.
- QUALITY NORMS -RAW MATERIAL
Sr. No. |
Tests |
Acceptance Norms |
1 |
Bend Test or Brittleness Test |
Min. 5 Bends |
2 |
Stacking Factor Test |
As per Diff. Thickness (mm) |
3 |
Surface Insulation Resistivity Test as per Franklin Test Method |
Min. 10 Ohm/Cm2 |
4 |
Core Loss Test |
W/kg. at specific Flux Density for diff. Grades from coils (At start and end of the coil) |
5 |
A/c Permeability Test |
Min. 1.75T at 800 AT/m & 50 Hz for conventional G.O. Steel and Min. 1.85 T at 800 AT/m & 50 Hz For High Permeability G.O. Steel. |
