Wednesday, 1 January 2014

Understanding Rotary Tablet Press Machines

By Harriett Crosby


In the pharmaceutical industry, there are several types of products that are released to the market. Some are in the form of syrup, liquid injections, topically applied creams and ingestible tablets. In the production of tablets, this machine is required to produce the desired shapes and sizes. Currently, manufacturers use the more advanced Rotary Tablet Press machines. Those with little production needs still use the single-punch one which is slower.

In the former days, manufacturers of pharmaceutical products had to place the material on conveyor belts where they were then compressed and packaged by the use of foils. A process that was prone to biological contaminants like bacterial transfer from the humans handling the drugs. The process was also very expensive in terms of production costs to the manufacturers. Currently the processes are automated requiring very limited human contact.

By use of hardened steel plates, the powder id highly compressed. This calls for programming the entire process so as to produce precisely sized tabled with the desired weight so as not to overdose or under dose the consumers. The machines are also used in the manufacture of cleaning products and some cosmetics other than pharmaceuticals.

The basic operations procedures for these machines are flow, compression and finally ejection. At the first stage, the powdery granulated material flows through the machine then is compressed under the specified pressure and punched out in sizes. It is then ejected and collected as tablets ready for packaging and distribution.

Upper and lower punches together with a punching dye concertedly work to bring out the specified weight, size and shape of drug. It is filled into the dye as required then after closing the upper and lower punches; a pressurized roller applies pressure to compress the powder. The two punches with dye the releases the tablet hence ejection.

The press machines have several benefits. They have a good cost ratio of owning one. Their cleaning is very simple and operating them is very easy resulting in high yields. Changing the format is very fast and the parts are easy to assemble hence the short cleaning time.

They come with in-built dust extraction making the head section dust free. They have vacuum regulation and if one desire, a window display for large format indication. They come with very good accuracy even under stress like thermal and static. Their working safety is known to be very good and comes with long maintenance intervals.

There are two types of press machines, the single-punch and the Rotary Tablet Press machines. The second one is preferable since it has many cost saving benefits to the manufacturer. It can hold several punches meaning more output per specific timeframe. The dyes and punches for this machine are designed to custom for the production requirements. Monitoring the process is automated so the mass production is a fact while ensuring quality of the products. Consider buying a closed system so as to prevent cross-contamination with other products especially when working with drugs. Work with the high performance machines and you will never regret it.




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