Automatic Brinell Hardness Testing

Split the component stream and use many automatic tester in parallel.

Sorry nothing will be cost competitve at a point were automatic testers fail.

If the mass is great enough and the surface is smooth without surface tension then something on the order of an Equotip (i am not affiliated) could be automated. I believe the newer models have a digital output.

Your information is not complete. How big are the parts to be tested? When you say 'Fully Automatic Tester' does it include loading / unloading of components? What is the bottleneck in the testing process? It can hardly be the vision system as grabbing an image and analyzing it would take only a fraction of a second. In my opinion (I build vision systems for a living) if the part is small (up to a few hundred grams) doing the hardness test within 10 seconds should not be a problem.

if it possible to pass parts (within close tolerances ) between two rollers one of them for support & other heaving hard-indentator(pointer )with sensor/transducer like strain gauge which will give hardness value ?

if material is same but diff. in hardness due to mfg. process & workpiece heaving same shape then try for nonconventational method like Ultrasonic , Electromagnetic... With C.R.O.