McLanahan Corporation Announces Plans To Acquire Diefenbach

SOURCE: McLanahan Corporation | February 15, 2023

Hollidaysburg, Pa. — McLanahan Corporation is pleased to announce that it has signed an agreement to acquire Diefenbach, an Italian manufacturer of filter presses and thickeners based out of Medolago, Italy. The two companies, which have been working together on projects since 2013, expect the acquisition to close during the second quarter of 2023.

Diefenbach has been a leader in liquid-solid separation using filter presses since its founding in 1907, when the company was focused on producing presses for the olive oil industry. In the 1950s, Diefenbach expanded into the recycling and filtration of industrial wastewater. Today, Diefenbach has sold thousands of machines and has extensive experience in selling and manufacturing this equipment for the mining and aggregate industries, as well as for chemical manufacturing, food and beverage processing, battery recycling, PET recycling, wastewater treatment and more.

As the focus on a circular economy and recycling water from industrial processes becomes more and more prominent on a global scale, McLanahan Corporation was looking for a partner to continue expanding its offerings in this space. This will allow the company to ensure it is able to offer a more comprehensive solution to customers and industries around the world in support of these changing requirements for processing.

“As we look toward the future, we see a growing need for wastewater and tailings management in a variety of industries as part of the circular economy,” said Cory Jenson, EVP – Sales and Business Development at McLanahan. “Every industry is being challenged to use less and less water and to recycle the water they are using. This acquisition offers significant synergies to McLanahan’s existing tailings solutions in mining and aggregates, which continue to remain a critical part of McLanahan’s product offerings. This new partnership allows us to offer a more competitive solution to our tailings partners around the world.”

Diefenbach will continue to operate as an independent brand in the marketplace, focusing on its core industries and markets around the world. The company will continue to support customers in its core industries and regions. For the aggregate industry, Diefenbach will be partnering with Eagle Iron Works, another brand in the McLanahan Family of Companies, to offer a proven line of filter presses and thickeners to Eagle customers who are looking to purchase a complete tailings and water management solution from one vendor. 

Headquartered in Hollidaysburg, Pa., USA, McLanahan Corporation offers over 185 years of experience in providing processing solutions to a variety of materials handling industries. For more information, contact [email protected]. To learn more about Diefenbach, as well as see its updated branding as part of the McLanahan Family of Companies, please visit

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McLanahan Corporation, headquartered in Hollidaysburg, PA, remains a world leader in the development and manufacture of aggregate process equipment and systems. Founder, James Craig McLanahan, established a focus on inventing, designing, improving and building the most efficient and rugged equipment for the most demanding industries. Today, 175 years since its founding, our reputation for these same qualities spans the globe. Now in its 6th generation of family ownership and a restructured organization, McLanahan is ready for the next century of business.

McLanahan Corporation’s Aggregate Division offers a wide range of aggregate processing equipment for sand processing, scrubbing, classifying, crushing, fines recovery and water management. They specialize in process solutions for construction aggregates such as limestone granite, sand, gravel and other similar minerals.