lundi 23 décembre 2013

Understanding Rotary Tablet Press Machines

By Harriett Crosby


It is amazing how tablets are made. After the development and mixing of the compounds composing a drug it has to go through a press to compress it into tablets of the desired shapes and sizes. The most efficient type is the Rotary Tablet Press machines. They can produce large quantities of tablets within a short period of time. And as we progress so do we expect better technology to improve these processes.

In the earlier days, tablets were placed on conveyor belts where they were compressed and packed by the use of foils. This resulted in high production costs and great material wastage. Additionally, the use of human hands to do the work exposed the drugs to transfer of infections like bacteria. The current methods are majorly automated and require minimal human contact if at all.

The medicinal powder is compressed under very high pressure between hardened steel plates. This process is programmed to produce solid tablets of specific weights so as to conform to dosage requirements of patients. Other than their use in pharmaceuticals manufacturing, these press machines are also used in cosmetics an even cleaning products manufacture.

These machines basically involve flow, compression and ejection of completed product. In the flow stage, the powdered medicine is directed into the machine where it fills the punches and is compressed into the desired shapes. After this it is then ejected then collected for packaging and sold to the market.

Two punches combine in action with a punching dye to create the desired shape and size of tablet. The powder fills the specific dyes which are then closed then a high pressure roller comes in to compress the material. The dyes then give way to release the tablet as a final product.

There are many benefits of using the machine. Their cost ratio of ownership is very good. Cleaning them is quite simple and they come with easy operation procedures hence high yields. One can change the format fast and easily assemble the parts resulting in shortened cleaning time.

Their in-built dust extraction works to make the head section dust free all the time when working. The vacuum regulation and optional large format window display makes the press a wonderful machine for tablet production. They are accurate and maintain this even under thermal and static stress. The machines will work safely and the maintenance interval is extended.

Many types of these machines exists, these includes single-punch press and Rotary Tablet Press machines. The rotary press offer very high speeds and can hold many punches for mass production and time saving benefits. Dyes and punches are designed specifically for every job meaning the shapes and sizes are unique to a customer's needs. The process monitoring is automated and the components of these machines are of very high quality. When buying one for pharmaceutical use, consider choosing one with a closed system so as to avoid cross-contamination. The amount of tablets it can produce in a specified time should also be considered in addition to its ability to change the charging and compression modules easily. For the best in production, always go for the high performance machines and you will not be disappointed.




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