Basic Machine design and operation similar to AI-B 3000(H). In
addittion,an 'optical device' with 14x magnification provided front to project dia of
ball impression on glass screen with a micrometer measuring system with 0.01 mm accuracy.
The indenter swivels and projects dia of ball impression immediately after unloading
operation which avoids additional time for measurement of ball impression. This give real
Brinell number on production testing. |