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A tablet press in operation An old rotary tablet press. A tablet press is a mechanical device that compresses powder into tablets of uniform size and weight. A tablet press can be used to manufacture tablets of a wide variety of materials, including pharmaceuticals, nutraceuticals, cleaning products, industrial pellets and cosmetics.
Also, it can press the name of the manufacturer or the product into the top of the tablet. Stage 1: Top punch is withdrawn from the die by the upper cam. Bottom punch is low in the die so powder falls in through the hole and fills the die. Stage 2: Bottom punch moves up to adjust the powder weight. It raises and expels some powder.
The upper and lower punches compress the tablet in two steps as they travel across heavy compression rolls. The tablet is then ejected from the cavity and the process repeats. At full speed, a typical press can make over 250,000 tablets per hour. Reason Animation shows the complex, multi-step process of tablet pressing in a convenient view.
Quick change tool system, plug and punch (left: die; front: punch, split punch retainer; back: tool body; right: punch guide) The linear tool carrier (y-axis) has several stations that hold the punching tools and one cutting tool. Especially for flexibility and efficient processing are set up times a crucial cost factor.
The tablet press is an essential piece of machinery for any pharmaceutical and nutraceutical manufacturer. Tablet presses must allow the operator to adjust the position of the lower and upper punches accurately, so that the tablet weight, thickness and density/hardness can each be controlled.
Punch Cards 1890-late 1980s The punched-card tabulation system was first put into widespread use during the 1890 United States Census, although inventors had previously tinkered with earlier versions.