In one of the our Trial containing herbal ingredients we find that during the compression the machines makes a very loud sound indicating the high pressure of the machine.
I want to know what are the different possible reasons for this sounds.
I cross check with calcium granules and the tablets compressed were of proper hardness without any sound of the machine.
Please comment.
We are also not getting proper hardness of tablet
Granules final sifted from 20# sieve.
Compress at 10 mm round standard concave punch both side plain.
Please comment
also check hardnes of 20 no grains by releasing pressure down.some product at high pressure does not give high hardness due to overload and sliping action and give good hardness by decreasing pressure.