A manufacturer of vibratory fluid bed dryers, coolers, classifiers, screeners and other machinery, Witte Co., Washington, N.J., is celebrating its 80th anniversary.

Founded by Richard Witte in New York City in 1938 to meet demand for dependable material-handling machinery, the company developed proprietary vibration technology for conveying and screening. Soon after, under the direction of Eugene Witte, the family-owned and -operated company introduced the concept of vibratory fluid bed drying and cooling. That technology continues to form the foundation of every vibrating fluidized bed dryer or cooler manufactured to this day, says the company.

After expanding into the plastics industry with classifier systems in the 1960s, the company returned its focus to the fluidized bed dryer design it had created. Under the direction of Richard Witte II, the company introduced a fluid bed dryer with integral baghouse dust collector to allow products with particle sizes less than 250 µm to be processed in a fluidized bed. This design continues to be widely used as the solution for drying and cooling fine powders that cannot be efficiently processed by conventional fluid bed systems.

Following a move to its current headquarters in New Jersey, now headed by fourth-generation President Tyson Witte, the company recently expanded its facility to encompass 45,000 ft2 for engineering, manufacturing and assembly with an on-site test laboratory.