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to
draw
your best options
in superior
raw
materials:


All the incoming raw materials undergo a whole regimen of tests at the Vardhman – Dr BROCKHAUS Laboratory.

  • Testing machines in this lab include:
  • Single Sheet Tester
  • Ring Core Tester
  • Epstein Tester
  • Franklin Insulation Resistance Tester
  • Bend Tester
  • Stacking Factor Tester
  • Acceptance Norms (for tests above):

Sr. No.

Tests

Acceptance Norms

1

Bend Test or Brittleness Test

Min. 5 Bends
0-180° Bending Of Sample
(Size :- 305 X 30 mm)

2

Stacking factor test

As Per Diff. Grade
0.23 – 95.5%
0.27 – 96.0%
0.30 – 96.0%
0.35 – 96.5%

3

Surface Insulation Resistivity Test as per Franklin Test Method.

> Min. 10 Ohm/Cm2.

4

Core Loss Test (By Epstein Square Test Method)

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 800AT/m & 50Hz
for conventional G.O. Steel and
Min. 1.85T at 800AT/m & 50Hz
for high permeability G.O. steel

Although we follow IS Standards, however our plant works at the most upgraded technology with far ahead stricter quality norms than above mentioned standards to ensure the best of customer's needs.
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