Union Process, Inc. is a company founded in 1946 in Akron, Ohio, USA, and was the world’s first to develop Attritor stirred-media ball-mill grinding technology.

1. Company Overview
Company name: Union Process, Inc.
Founded: 1946, by founder Dr. Andrew Szegvari
Headquarters: Akron, Ohio, USA
Business areas: particle-size-reduction/dispersion equipment (Attritors, bead mills), grinding media, toll grinding services
2. History and Workforce
Founded in 1946 by Dr. Szegvari out of a small plant in downtown Akron. He invented a method using randomly moving grinding media, creating the world’s first “Attritor grinding and dispersion” milling method — a technology that remains the company’s core asset to this day.
The company serves customers through a worldwide network of licensees and agents. Detailed organizational/workforce composition is (undisclosed).
3. Core Technology and Key Equipment
Batch Attritors are manufactured in sizes ranging from 750cc to 600-gallon capacity and from 1hp to 400hp motors, and the company more recently also operates a DMQX horizontal bead-mill lineup targeting submicron/nanometer particle-size ranges.
- Batch Attritor — 750cc–600 gallon, 1–400hp
- HD/HDDM Combination Attritor — integrates both modes into one machine
- DMQX Horizontal Bead Mill — addresses submicron–nanometer particle sizes
- CLS Attritor — special line combining slaking and grinding
4. Production Infrastructure and Quality Assurance
The Akron headquarters houses a large-scale R&D lab and pilot plant, and the company also provides toll grinding (contract milling) services along with particle-characterization services such as BET surface-area analysis, laser-diffraction particle-size analysis, and X-ray sedigraph analysis.
5. Track Record and Partnerships
The company states it supplies general-purpose grinding equipment used across industries ranging from chocolate to tungsten carbide, and describes its Attritor technology as also being applied to fine-grinding and nanoparticle-dispersion processes for battery materials. Individual customer names are (undisclosed).
6. Financial Status and Roadmap
As a privately held company, revenue and other financial figures are (undisclosed).
The company continues to develop new products such as the Combination Attritor and the newer DMQX bead mill, expanding its lineup to address particle-size-reduction needs ranging broadly from 3mm-class down to nanometer-class.
This profile was compiled from publicly available sources including the company website (unionprocess.com), Thomasnet, and ZoomInfo. Unverified or undisclosed figures were not arbitrarily included.