Tablets & Capsules

TC0315

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Tablets & Capsules March 2015 33 Incidentally, the most common means of preventing contamination—equipping the upper punches with drip cups and/or bellows—requires additional consideration when used with multi-tip tooling. With multi-tips, the groove in the punch that holds the cup/bellows in place can reduce the space available for multiple tips, limiting how many tips the punch can accommodate. An expert tool designer can limit this impact. See Figure 3. Setup and care Once the tablet design is final, the prototypes tested, and the final set of tooling ready, be careful during instal- lation. First, use a die alignment tool to check die-pocket wear and turret alignment. That's important because if the Figure 3 Multi-tip punch with seal groove, which may limit the number of tips it can accommodate dies aren't set correctly, both the upper and lower punches can misalign and become tight in the guide. If that hap- pens, the punch tips will contact the die wall, leading to friction and heat buildup. Furthermore, the punches will not move freely during compression and that will damage the fill and ejection cams. The size of the die pockets is also important. Depend - ing on their condition and that of the die table, they may need replacing or you may need to revise the tolerance of the die specification. Of course, the die pockets must be free of foreign objects and burrs. Also be sure that the die-fixing screws are in good condition so that the multi- tips can work to their full capacity. While all tablet press tooling should be handled care- fully, multi-tip tooling is even more delicate than standard tooling, and proper maintenance is critical to maximize ser- vice life. The sidebar on the opposite page lists seven main- tenance steps to follow to avoid tooling problems, many of which stem from poor handling and maintenance. Don't try to save time by skipping a step or doing a less-than-thor- ough job. If you do, you'll pay for it in lost production time due to unplanned maintenance and tooling replacements. T&C Steve Osborn is expert in design and multi-tip tooling, and Steve Deakin is owner-director at I Holland, Nottingham, UK. The company's North American office is located at 1684 Target Court, Suite 3, Fort Myers, FL 33905. Tel. 732 310 4433. Website: www.tablettingscience.com. KURIYAMA EĞǁdŝŐĞƌŇĞdžΡsŽůƚďƵƐƚĞƌΡ,ŽƐĞ ĞƐŝŐŶĞĚĨŽƌ,ŝŐŚ^ƚĂƟĐ ƉƉůŝĐĂƟŽŶƐ ͻEĞǁsŽůƚΡĂŶĚ s>dͲ^Ρ^ĞƌŝĞƐ ;ĨĂďƌŝĐƌĞŝŶĨŽƌĐĞĚͿ ŚŽƐĞƐĞīĞĐƟǀĞůLJ ĚŝƐƐŝƉĂƚĞƐƚĂƟĐ ƚŽŐƌŽƵŶĚ͘ ͻ,ĞůƉƐƉƌĞǀĞŶƚƐƚĂƟĐďƵŝůĚͲƵƉĂŶĚƌĞĚƵĐĞƐƉŽƚĞŶƟĂů ĨŽƌĚĂŶŐĞƌŽƵƐĞůĞĐƚƌŽƐƚĂƟĐĚŝƐĐŚĂƌŐĞƐ͘ ͻ,ŽƐĞƚƵďĞŝƐĐŽŶƐƚƌƵĐƚĞĚĨƌŽŵŚŝŐŚůLJĂďƌĂƐŝŽŶ ƌĞƐŝƐƚĂŶƚĨŽŽĚŐƌĂĚĞƉŽůLJƵƌĞƚŚĂŶĞ͘ ͻ'ƌŽƵŶĚŝŶŐǁŝƌĞŝƐĞŶĐĂƉƐƵůĂƚĞĚŝŶƚŚĞƌŝŐŝĚWsŚĞůŝdž ǁŚŝĐŚƐĂĨĞůLJĞůŝŵŝŶĂƚĞƐƚŚĞƌŝƐŬŽĨĐŽŶƚĂŵŝŶĂƟŽŶ͘ ͻ/ĚĞĂůĂƉƉůŝĐĂƟŽŶƐ͖ƚƌĂŶƐĨĞƌŽĨƉŽǁĚĞƌƐ͕ƉĞůůĞƚƐĂŶĚ ŐƌĂŶƵůĂƌŵĂƚĞƌŝĂůƐ͘ Kuriyama of America, Inc. www.kuriyama.com tFNBJMTBMFT!LVSJZBNBDPN Ρ Ρ ůĚ Ƶ Slat Fillers and Slats Available Full Packaging Line Components and Integration Modular Packaging Systems 6 Aspen Dr. Randolph, NJ 07869 P: 973-970-9393 www.modularpackaging.com Contact: Erik Bronander Model VC-12 Electronic Counter CHANNEL COUNTER/FILLER • 12 Channel Operation with speeds up to 50bpm • Fills Tablets, Capsules and Softgels • Fast Delivery

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