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Our Company

Pneumatic Scale Angelus is an industry leader in the design and manufacture of packaging machinery for wet and dry filling, capping, can seaming, labeling, and centrifugation applications across the globe. Headquartered in Stow, Ohio, and with 7 manufacturing locations and more than 700 team members worldwide, we design innovative equipment, using the most advanced technologies, to the unique specifications of our customers.


As a member of the Barry-Wehmiller family of companies, Pneumatic Scale Angelus strives to be the kind of company that enables its associates to return home each day with a true sense of fulfillment. Our goal is to be a company that people enjoy working for, doing business with, investing in, and having as part of their communities.


Founded in 1895 in Quincy, MA, Pneumatic Scale Corporation was born when retail merchant William H. Doble realized a device he had developed for sealing and weighing dried currants could be applied to other products. Originally the Electric Scale Company, the firm was renamed to Pneumatic Scale Corporation upon switching technologies from electricity to compressed air. Originally handling only dry goods, the purchase of the Standard Automatic Machine Company led to patents in bottle filling and capping. As early as 1922, Pneumatic Scale Corporation had offices in Chicago, New York, London, Paris, and Tokyo.  (Credit to the Thomas Crane Library for historical references.)

Meanwhile, in 1910, the Angelus Sanitary Can Machine Company was founded in Los Angeles, CA by inventor Henry L. Guenther, who designed and patented machinery for producing double seams on cans. It was his vision to build a company that would produce the finest machines of its kind, anywhere in the world. His legacy lives on today as the Angelus name is considered the gold standard for seaming.

In 1989, Barry-Wehmiller purchased Pneumatic Scale Corporation and, in 1995, the company's headquarters moved to its current location in Stow, Ohio. By 2007, the company had also acquired the Angelus Sanitary Can Company, bringing together the powerhouse bottling equipment and canning equipment manufacturers to form Pneumatic Scale Angelus. Today, we are one of five Barry-Wehmiller businesses represented in BW Packaging Systems, which also includes Accraply, BW Integrated Systems, BW Flexible Systems, and Synerlink.

Innovation and Expertise

As part of the BW Packaging Systems family, and through our diverse but complementary capabilities, Pneumatic Scale Angelus and our sister companies can provide everything from a single piece of equipment to fully-integrated, tailor-made packaging solutions across a wide range of industries. Our product lines include the most advanced technologies for filling, seaming, capping, labeling, and centrifuge applications, as well as the most robust offering of change parts and aftermarket solutions in the industry. All of this is supported by a team of expert service technicians capable of supporting every machine we have manufactured since our inception, ensuring the integrity and viability of every machine that bears our name.