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Tag Archive: pharmaceutical

1. The Hammer Mill and Pharmaceutical Production

   May 23, 2018 9:12 am Leave a Comment

   No pharmaceutical processing facility is complete without the Hammer Mill. Versatile and requiring relatively small footprints, hammer mills are suitable for product development and production of coarse through ultra-fine powder production. Hammer Mills can also be equipped with integrated lifting columns to fit into almost any processing line.

   

   Hammer Mills are excellent for reprocessing and recovering off-products, positioning materials for milling again, thereby reducing waste, increasing productivity, and lowering unit costs. More advanced mills utilize a dual-sided blade assembly, where one side serves as the hammer to impact dry materials while the other to knife through the wet ingredients. Some Hammer Mill rotor assemblies are reversible without disrupting the rotation of the mill. Hammer Mills can be employed to reclaim rejected tablets to powder form. Incorrect hardness, overweight/underweight, and poor appearance are among reasons that tablets are unacceptable products. But, despite rejection as a consumer product, the essential powders are typically recoverable.

   Shock-resistant Turbo Mills find a place in the pharmaceutical industry when working with higher-toxicity APIs (which can heighten risks for dust explosion) and for +/- 10 bar shock resistance.

   Want to learn more from Classifier Milling Systems? Give us a call or contact us!

2. Pin Mill: Why it can be the grinding mill of choice

   April 23, 2018 9:22 am Leave a Comment

   

   The pin mill consists of two counter-facing discs with pins mounted to a stationary or counter-rotating disc plate and a second rotational rotor plate. Material fed to the grinding chamber is pulled by the centrifugal force exerted by the spinning disc(s), flowing the production materials through the pins to collide with the liner wall. The material at particle sizes below the cut point will exit the mill to a cone hopper, while material above the cut point recirculates for continued grinding. Also called a Centrifugal Impact Mill, the pin mill offers several benefits over other grinding mill types:

   1. Micronized particle sizing – Pin mills can meet size reduction targets as low as 2 µm.
   2. Uniform product – Pin mills, more than most other mill types, are known for producing a highly homogenous product.
   3. Dust-free – Pin mills do not expel dust during operation, therefore eliminating nuisance-dust from grinding, and nearly eliminating product waste.
   4. Energy consumption – Pin mills are energy-efficient.
   5. Small footprint – Pin mills are relatively small grinding mills easily integrated into milling systems flows.
   6. Flexible use – Pin mills can be used to mill dry or moist material. Moreover, the particle size can be altered ‘on the fly’; without having to shut the mill down.

   When looking for grinding mills, the pin mill is one to keep in mind. Want to learn more? Give us a call or contact us!