From Hosokawa Micron Powder Systems

The demand for pharmaceutical materials including finely ground active substances and excipients is growing. Injectable drugs and dry powder inhalants require particle-size distributions in the range of D97 of 2-20 microns, with a steep distribution curve and a minimum of fine and oversized particles. This can be accomplished by either wet or dry processes.

Conventional dry size reduction of pharmaceutical powders is accomplished by impact size reduction. Equipment commonly used falls into the category of either mechanical impact mills or fluid-energy impact mills. Examples of mechanical impact mills are hammer and screen mills, pin mills, and air-classifying mills. Spiral jet mills and fluidized-bed jet mills are examples of fluid-energy impact mills.

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Products & Services
Crushers
Industrial Crushers reduce large rocks into smaller rocks, gravel, or rock dust. Crushers may be used to reduce the size, or change the form, of waste materials so they can be more easily disposed of or recycled, or to reduce the size of a solid mix of ra
Grinding Mills and Pulverizers
Grinding Mills and Pulverizers are machines that grind materials into fine powders, tiny shards, shapes, or granules on a continuous basis. Often, they are used to process items that are 2 inches (5 cm) in size
Powder Compacting Equipment
Powder compacting equipment is used to shape powders as part of a forming process and to compress a wide range of materials into compact shapes for ease of transportation and handling.
Powder and Solids Blenders
Powder and solids blenders produce a uniform mixture of dry or powdery materials. They are designed for industrial and laboratory environments, and provide either batch or continuous blending.
Conical Screw Mixers
Conical screw mixers use a rotating screw that progresses around the periphery of a conical hopper. The screw lifts solids from the bottom of the hopper to the top, where the mixture flows by gravity back into the screw.

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Topics of Interest

Introduction Grinding is the last stage in the process of comminution; in this stage the particles are reduced in size by a combination of impact and abrasion, either dry or in suspension in water.

Operational Excellence & Lean Six Sigma Basic types of media mills Dry media mills for finest powders Wet media mills for slurries Powder Blending From Art to Science Digital Insights: At Last:...

Size reduction mills are used widely throughout the pharmaceutical industry for the reduction of active ingredients (API's), as well as bulk pharmaceuticals (BPI's) and excipients such as lactose,...

Dispersion, colloid and roller mills are used to reduce solid products to a desired particle or aggregate size in dry or slurry forms. Colloid mills use discs or rotors that spin at very high speeds...

Conical Screen Mills (also referred to as Cone Mills) are gentle size reduction mills which are often used to precondition the material prior to its entry into a process, either by delumping or coarse...