Tablets & Capsules


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Tablets & Capsules January/February 2021 11 a capsule's closed-joined length to assist with verify- ing the capsule's proper lock position. Some suppliers offer go/no-go gauges to provide operators with a quick way to visually verify whether the capsules are in a pre- locked or locked position. Supplier resources and expertise Capsule suppliers have a vested interest in ensuring their capsules run well on different makes and models of capsule filling equipment and with a variety of dif- ferent fill materials. A capsule supplier should be able to provide detailed technical documents addressing critical capsule attributes, such as dimensions, target weight, and capacity, along with recommendations for storage and handling to help achieve the best performance during filling operations. Some capsule and filling machine suppliers have in-house technical services groups to assist with trouble- shooting, process optimization, proactive training, and on-site support during capsule filling trials. Be sure to take advantage of these resources to increase throughput, reduce capsule rejects, and ultimately increase the profit- ability of your next capsule run. T&C Pete DeLuca is the director of technical services, at Qualicaps (336 449 3972,, Telescoping can occur when the cap and body are improperly seated or misaligned during closing, causing one of the edges to slice or cut through the other capsule half. Telescoping can be caused by rough or unevenly cut capsule edges; coarse, fibrous, or abrasive formulations; overfilling; or worn segments/bores. Tucks (also known as folded edges) can occur when the capsule body is overfilled or if the capsules are not concentrically aligned in the segment bores. When the capsule cap and body come together during closing, the edges collide, causing one or both edges to fold inward. Separation after filling Filled capsules coming apart in the capsule polisher typically results from the capsules not being closed properly or the locking mechanism not being fully engaged. Capsule suppliers provide specifications for Photo 2: Telescoping, as shown here, may be caused by improper segment alignment. Photo 3: Tucking occurs when the cap and body edges collide during closing, causing one or both edges to fold inward. Photo 4: A go/no-go gauge allows operators to quickly verify whether a capsule is in a pre-locked or locked position.

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