Pharmaceutical   Size Reduction     Applications     Models/Styles     Theory     Product Containment     Features/Options     Process Improvement     Troubleshooting     Safety		Several options are available to enhance the comminution process or extend the comminutors ability to deal with exotic or hard-to-handle materials: Cryogenic grinding (injecting a cooling agent into the mill chamber): The FitzMill feed throat can have Inlet ports for Liquid Nitrogen (LN2) or Carbon Dioxide (CO2) injection (Cryogenic Grinding). This process can be used to cool the feed material to prevent melting or to make the product brittle. In the latter case, it is possible to mill even flexible materials by freezing with a cryogen. Specific materials of construction for the mill are selected to prevent embrittlement to the equipment components. Wear plate in throat: Much of the size reduction is caused by the impact of the particles against the feed throat roof. In order to avoid excessive wear on the throat, a wear plate can be used. Breaker plate: In order to obtain additional milling action, a fixed or removable breaker plate can be installed on the throat roof. Due to the shape of this breaker plate, and clearance between the blade and this surface, a finer grind is obtained. Water-jacket on throat: Much of the size reduction occurs when particles impact against the FitzMill throat. Under certain conditions the throat can heat up due to the mechanical impact. For heat sensitive products, it may be necessary that the throat is cooled. This can be accomplished with a water-jacketed throat. Water-jacket on chamber: To obtain further cooling effect, a water-jacket on the chamber walls can be used in combination with the jacket on the throat. However, due to the short residence time in the chamber this cooling method is rarely used. Water-jackets on the throat and chamber can also be used for heating purposes. Screens: Fitzpatrick can provide literally hundreds of types of screens in order to match the process requirements. Blades: Fitzpatrick has numerous blade configurations manufactured from a variety of materials to best meet the process requirements.