McLanahan to buy filter press company Diefenbach

McLanahan Corporation has entered into an agreement to purchase Diefenbach, a filtration, water and tailings management company based out of Northern Italy. 
Washing & Water Management / February 15, 2023
By Liam McLoughlin
Diefenbach has been involved in liquid-solid separation using filter presses since its founding in 1907
Diefenbach has been involved in liquid-solid separation using filter presses since its founding in 1907

Founded in 1907, Diefenbach has thousands of filter presses in the field, serving a wide variety of industries. 

McLanahan, a US-headquartered dry and wet materials processing solutions manufacturer for quarry and mining customers, has been working with Diefenbach on projects since 2013 and says it expects the acquisition to close during the second quarter of 2023.

Diefenbach has been involved in the area of 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 says it 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. 

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