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Pharmaceutical Manufacturing and Packing Sourcer

Protective Properties

Coating technology has advanced considerably over the years. When used in conjunction with highquality tooling steel, tool coatings are increasingly seen as an acceptable means of solving production problems. They allow for better tableting efficiency and output by reducing the requirement for tools to be taken out of production for additional cleaning and maintenance work to remove problematic residue, which, if left untreated, may cause potential production issues, such as sticking and picking.

Understanding the product being compressed is crucial when it comes to choosing a tool coating. Some formulations are particularly abrasive and can cause adverse effects to the punch tips when under compression, causing wear, pitting, or corrosion. Although tools are manufactured from hardened and tempered tool steel, the demanding processes involved can lead to deterioration if the tool material is not optimised along with a relevant coating.

The need for a coating that will improve the hardness of the tooling is extremely important for particular formulations. Some ingredients have high quantities of hard, sharp-edged minerals that, when repeatedly compressed, can scrape away or penetrate the surface of the tool. The abrasion can lead to the erosion of punch tip detail such as logo embossing and other identification and branding. Eventually, this wear will lead to weight variation and sometimes other issues like sticking, resulting in the scrapping of the punch.

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Since joining the company in 2003, Rob Blanchard – Research Development, and Quality Systems Manager – has been instrumental in the development of I Holland’s range of surface treatments and coatings for tablet compression tooling. He is also part of the Eurostandard steering committee and responsible for I Holland’s registration to ISO 9001:2015. Rob also co-ordinates I Holland’s close collaboration with various respected academic research bodies.
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Rob Blanchard
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