Granulator Manufacturers and Companies

Granulators

Granulators are machines that are designed to granulate a substance into a grain. What differentiates granulators from other size reduction machines such as shredders or grinders is that granulators make large components and make them significantly smaller than what a grinder could do. Granulators generally have an open rotor configuration which means that air can easily move around the rotor while cooling the product, however there are also closed rotor granulators that operate at high speeds. The components are typically ground down to the consistency of cornmeal and sometimes even smaller. These grains range from 0.2 and 4.0mm.

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• Types of Granulation

Types of Granulation

There are two types of granulation which are wet granulation and dry granulation. They are detailed further below.

Wet Granulation

Causes the granules to be formed when the granulation liquid is poured onto a powder bed and is mixed together through an impeller, screws, or air. The agitation of these two substances creates wet granules. The most common liquids included are water, ethanol, and isopropanol. Aqueous based solutions are generally much safer to handle than solvent based solutions.

Dry Granulation

When the granules are formed without the use of a liquid. This process is preferred in situations where the products may be sensitive to moisture and heat. To create these granules without the utilization of moisture will require the use of a compactor. Granulators are very important for various applications involved in the recycling industry. These products are ideal for lighter materials like plastics and rubber as these substances do not grind well.