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The tablet press is mainly used for the research of tablet technology in the pharmaceutical industry. It is a device for manual or automatic continuous production of tablets with a diameter of no more than 13mm, round, special-shaped and with text, symbols, and graphics. A machine that puts granular or powdery materials in a die hole and presses them into tablets is called a tablet press.
Tablet Press Machine
The working principle of the tablet press:
The punch and die are subjected to a lot of pressure during the process of tableting. They are usually made of bearing steel and are heat treated to increase their hardness.
There are many types of punches, and the shape of the punch depends on the shape of the tablet. According to the shape of the die structure, it can be divided into circular and special shapes (including polygonal and curved shapes); the shape of the punch section includes flat, hypotenuse, shallow concave, deep concave and comprehensive shapes. The flat and beveled punches are used to compress flat cylindrical tablets, the shallow concave is used to compress biconvex tablets, the deep concave is mainly used to compress the chips of coated tablets, and the comprehensive shape is mainly used to compress shaped flakes. In order to facilitate the identification and taking of medicines, the name of the medicine, dosage and vertical and horizontal lines can also be engraved on the end face of the die. To compress tablets of different dosages, a suitable size die should be selected.
The working process of the tablet press:
The working process of the tablet press can be divided into the following steps:
① The lower punch position (its working position facing upwards) extends from the lower end of the middle mold hole into the middle mold hole to seal the bottom of the middle mold hole;
②Using a feeder to fill the hole of the middle mold with raw materials of medicine.
③The punch part of the upper punch (its working position facing downward) falls from the upper end of the middle die hole into the middle die hole, and down a certain stroke to compress the powder into tablets;
④The upper punch lifts out the hole, and the lower punch lifts to push the compressed tablets out of the middle die hole to complete the single pressing process.
⑤Drop down to the original position and prepare for the next material filling.
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