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|Testing Parameter||Hardness, Friability|
|Drum’s Radius||Dia. 286 mm|
|Drum’s Depth||39 mm|
|Tablet Falling Height||156 mm|
|Rotation Count||10-900 r|
|Rotation Speed||25 rpm|
|Speed Regulator Accuracy||±1 rpm|
|Hardness Range||2~199.9N (50Kg, 499.9N is optional)|
|Probe Procession Range||3~40 mm|
|Power Supply||220V/ 50Hz, 110V/ 60Hz|
Why do we measure hardness of tablets?
Tablet hardness can serve as a guide for product development and as a quality-control specification. The tablets should not be too hard or too soft, as a hard tablet could prevent the dissolution of the tablet, which is needed for an accurate dosage.
How to test tablet hardness?
Compression testing and 3 point bend testing. For compression testing, the analyst generally aligns the tablet in a repeatable way, and the tablet is squeezed between a fixed and a moving jaw. The tablet hardness tester continually applied force with a spring and screw thread until the tablet started to break. When the tablet fractured, the hardness was read with a sliding scale.