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Antibiotics production, for example, often involves spray drying processes. Many ingredients in industrial processes also must be spray dried. Ceramic materials, paint pigments, detergents, catalysts, salts and a wide variety of other materials can be prepared by spray dryers. Read More…

Spray Dryers Food processing operations like milk drying make extensive use of spray drying procedures. Cereals, many kinds of coffee, teas, spices, egg-based foods and flavorings are often subject to spray heating processes in advance of packaging and consumption. Spray drying is also used in the development of a wide variety of healthcare and pharmaceuticals-related products.
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Leading Manufacturers

Louisville, KY  |  502-969-3171

Carrier is a manufacturer of high quality dryers in addition to many other related products, including coolers, screens, air knife separators, spiral elevators, feeders & conveyors.

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Carrier Vibrating Equipment, Inc. $$$

De Pere, WI  |  920-336-5715

Dürr is a leading global supplier of environmental solutions and engineered products tailored to meet customers' industrial process requirements. We offer a complete portfolio of air pollution control technologies and drying and curing systems, including industrial dryers and ovens for roll-to-roll processes, web forming processes and conveyor handling of webs, as well as specialized coating lines for lithium-ion battery electrode coating.

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Dürr Systems, Inc. $$$

Louisville, KY  |  877-316-6140

We are a company dedicated to quality design, supply, installation and repair and maintenance of industrial processing equipment. Our team has the knowledge and experience to get, and keep, your units running smoothly. Services include field services, inspections, and assessments. Kiln and dryer parts range from burners to gears to bearings. We are here to serve your present needs, as well as your future requirements.

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Industrial Kiln & Dryer Group $$$

E Longmeadow, MA  |  888-994-1014

For over 50 years, Excel Dryer has been manufacturing the finest American made hand dryers featuring the XLERATOR® Hand Dryer. Excel Dryer revolutionized the industry by inventing the patented XLERATOR® technology that created the high-speed, energy-efficient hand dryer category and set a new standard for performance, reliability and customer satisfaction. Excel Dryer’s expanded, enhanced product line — featuring XLERATOR, XLERATOReco® and ThinAir® hand dryers — come fully equipped with adjustable speed, sound and heat controls, multi-voltage options and an externally visible service LED. With the most options and accessories in the industry, including a HEPA filtration system and custom covers, you can design the best hand drying solution for any restroom environment. Excel Dryer prides itself on offering the ultimate customer service and making dependable products by employees committed to quality and dependability. For more information, visit exceldryer.com.

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Excel Dryer, Inc. $$$

De Pere, WI  |  920-336-9800

The CMM Group provides custom-designed industrial dryers and ovens for a wide range of applications in single or multi-zone configurations. The CMM Group designs and builds conveyorized curing, baking and drying ovens for automated production of small-to-medium sized products. Conveyorized roll support web dryers are available in horizontal or vertical tower design and can handle thin film to heavy gauge substrates, narrow to wide, slow or fast speeds.

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The CMM Group $$$

Lake City, PA  |  800-840-9906

Van Air, with 60+ years of experience, is a manufacturer of absorbent desiccant air dryers and gas dryers, filters and drain valves. We also supply the desiccant materials. If our standard gas dryers and air dryers won’t suite your application, we make custom dryers. Check out our industrial dryers.

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Van Air Systems $$$
placeholder image Carrier Vibrating Equipment, Inc. Dürr Systems, Inc. Industrial Kiln & Dryer Group Excel Dryer, Inc. The CMM Group Van Air Systems

Depending on the material being dried, spray dryers can use heated air or heated inert gasses; when combustible materials must be dried, gasses like nitrogen are used to minimize reaction risks.

Spray dryers are industrial drying systems that combine the processes of atomization and heating to dry a material. Atomization is the process by which a material is dispersed into extremely fine droplets. In spray drying, a material that is intended to be dried is mixed with a liquid and forced at high speeds into a chamber by a nozzle. Heat is then forced into the chamber, causing the liquid to evaporate and leaving behind fine solid particles.

The spray drying process begins with collections of materials to be dried and a solvent (which is often water). When the solute and solvent are mixed, the sludge or slurry created by this mixing are spun centrifugally and then forced through an atomizing nozzle at high speeds. While suspended in the drying chamber into which the material has been injected, it is exposed to a heated gas.

The solvent falls to the bottom of the chambers as the liquid solvent vaporizes. The dried materials are collected and prepared for the next phase of processing. The evaporation rate and the necessary size distribution of a product determine how much air is needed, which then affects the size and cost of most system components. As a result, these are the most important factors when designing a spray dryer.

Spray drying is often used when the product must meet exact requirements in terms of particle size distribution, particle shape, bulk density, and residual moisture content. Advantages of spray drying over other industrial drying processes include particle size control, enhancing flow properties of dry solids, evaporative cooling, corrosion reduction and short residence.

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