Chemical Processing 101: Milling

Chemical Processing 101 Milling

Are you looking into industrial milling, sometimes known as grinding, for your product, but are unsure about how milling works or if it’s necessary? Whether you are interested in learning more about milling, or you would just like some background information into the process before receiving milling services, Howard Industries has the information you need.

Keep reading to learn about the milling process, the best practices for milling your materials, and how Howard Industries can fulfill your milling needs.

What Is Milling?

Milling is the process of breaking down, separating, sizing or classifying a material or structure formed from a loosely compacted mass of fragments or particles. An example of this would be milling rocks to create uniform particles for construction purposes. Milling processes can also be used to remove contamination or water/moisture from materials to produce dry particles prior to transport or structural filling.

Milling allows you to control the particle size of your product in the manufacturing process.  Particle size consistency enhances product flow rate and reduces the size, which can assist in the downstream process, depending on the product goals.

What Is The Purpose of Milling?

There are a few reasons why you would want to mill aggregate material into smaller, uniform particles.

  • To increase the surface area of an aggregate material: An example would be milling rock to create gravel which can be used to pave a driveway or parking lot.
  • To create consistent particle sizes: Particle size consistency enhances product flow rate and reduces the size, which can assist in the downstream process.
  • To separate materials: Remove contamination or moisture from particles to ensure dry particles.

In addition to these examples, milling materials can be important for adhering to industry standards, shipping, storing, etc.

What Tools Are Used For Milling?

To state the obvious, the tools used to mill materials are the same tools that the term “milling” derives its name from. There are a wide variety of mills that can be used to process materials. At Howard Industries, we have a large assortment of mills that can grind powders and solids to any specification, as small as single-digit microns.

Having an assortment of mills is also helpful when it comes to what materials can be milled. While it is different for every mill, and every chemical processing company for that matter, at Howard Industries, we can mill nearly all materials, whether they are intermediates, additives, resins, fine and specialty chemicals, or industrial powders.

Here is a list of the most common types of mills—all of which are used at Howard Industries—for reference:

  • Jet Mill
  • Air Classifying Mill
  • Hammer Mill
  • Ball Mill

How Can Howard Industries Fulfill Your Milling Needs?

Howard Industries has been in the chemical processing industry for 53 years and milling—size reduction—is one of our core specialties. With our large assortment of mills, we can grind powders and solids to your desired specifications, as small as single-digit microns. Depending on the size and your specifications, our throughput can exceed 2,000 pounds per hour.

We know milling isn’t a cut and dry process, so you can also count on our other services to support your chemical processing needs, from drying to packaging. Contact us today to learn more!