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About Eriez

A single permanent magnet installed in a grain mill in 1942 by founder O.F. Merwin began the Eriez legacy.

Established in 1942, Eriez is a global leader in separation technologies. Our commitment to innovation has positioned us as a driving market force in several key technology areas, including magnetic separation, flotation, metal detection and material handling equipment. The company’s 900+ employees are dedicated to providing trusted technical solutions to the mining, food, recycling, packaging, aggregate and other processing industries. Headquartered in Erie, Pennsylvania, USA, Eriez designs, manufactures, and markets on six continents through 12 wholly owned international subsidiaries and an extensive sales representative network.


Our History

Eriez was founded by O.F. Merwin, a traveling grain milling equipment salesman, who repeatedly heard from his customers about the same issue: ferrous contamination in their processes. From tiny bits of wire to nails and bolts, to horseshoes and hammers, stray iron would flow down the chute with grain into the miller’s equipment, causing serious damage to their machinery and potentially causing an explosive fire.  

O.F. Merwin developed the first permanent magnetic plate separator prototype in the basement of his Erie, Pennsylvania home to protect grain millers from their ever-present issues, and through Bob and Betty Merwin’s continued strategic expansions and unrelenting forward-thinking, the rest is history.  

The Merwin Family’s legacy of innovation continues today, with Richard Merwin continuing to serve as Chairman of the Board. 



Eriez founder, Orange Fowler "O.F." Merwin with one of Eriez' first magnetic separators in 1946.

Bob and Betty Merwin preparing to depart on one of their many overseas flights to build Eriez' international markets.



O.F. and Bob Merwin meet to discuss expanding the Eriez product line in 1948.

Today, Eriez' global footprint serves the world's largest economies with local expertise and knowledge.

By the Numbers


Employees globally


Wholly-owned subsidiaries around the globe


Square meters of manufacturing space


Factory-trained sales engineers globally


Manufacturer representative companies in the Eriez sales network


Years of experience

Eriez Headquarters Corporate Management

Richard Merwin - Chairman of the Board 

Jaisen Kohmuench, Ph.D. - President & Chief Executive Officer 

Daryl Leach - Chief Financial Officer and Treasurer

Grainne Blanchette - Executive Vice President, Global Compliance, Legal & Human Resources 

Mike Mankosa, Ph.D. - Executive Vice President, Global Technology 

John Blicha - Vice President, Global Marketing & Brand Management 

Eric Nelson - Vice President, Global Operations

Tim Gland - Vice President, Global Operational Excellence

Eric Wasmund, Ph.D. - Vice President, Global Flotation Business 

J.R. Farrar - General Manager, Eriez-USA and Senior Director, Global Technology 

Document Download: Eriez All Products Overview

Document Download: Eriez Corporate Brochure

Headquarters | 2200 Asbury Road | Erie, PA 16506
814.835.6000 | 800.345.4946