Continuous Pharmaceutical Moist Granulators

Pharmaceutical Moist granulation is a continuous process. Moist, formable and pasty materials are processed to granulates. Owing to their defined particle size, granules can be better processed than virgin powders. In a moist granulating process, two cylinders counter-rotate, viz. the pressure cylinder and the granulating cylinder. The granulating cylinder has bores and acts as a shaping impression die. The pressure cylinder forces the material into the granulating cylinder through the bores, whereby the material is compacted. The degree of compaction is a function of:

• the ratio between the bore length and bore diameter
• the ratio of the circumferential speeds of the pressure and granulating cylinders (friction).

Inside the granulating cylinder, the compacted material is cut off by a scraper. In many cases, a drying process must be provided downstream of the granulation process to extract moisture from the granules, and to obtain dimensionally stable granules.

A requirement for moist granulation is adequate antifrictional properties of the moist material. Depending on the consistency of the material, the granulate yield will be between 90% and 95% relative to the input volume.

Technical data
Moist Granulator MG 100 - Moist Granulation up to 500 kg/hr

The MG 100 moist granulator made by Alexanderwerk lends itself to many different applications. Depending on the material and granulating cylinder, the throughput of the MG 100 can be as high as 500 kg/hr.

The MG 100 is made completely of high quality stainless steel, and it is thus equally suited for use in the pharmaceutical industry, or in the natural resources or chemical industries.

Moist Granulator MG 244 - Moist Granulation up to 2.000 kg/hr

The MG 244 moist granulator made by Alexanderwerk lends itself to many different applications. Depending on the material and granulating cylinder, the throughput of the MG 244 can be as high as 500 kg/hr.

The MG 244 is made completely of high quality stainless steel, and it is thus equally suited for use in the pharmaceutical industry, or in the natural resources or chemical industries.

Moist Granulator MG 65 A - Moist Granulation as attachable unit

The MG 65 A has been designed as an attachable unit for operation on a universal drive motor of the UM series made by Alexanderwerk. The UM universal drive motor comes with an integrated quick release cuppling for slip-on attachment of a variety of other process equipment items. These may be optionally a grater/shredder, a rotor fine granulator, or a mixer.