Question · Q2 2026
Brian Drab asked about the strong growth in the Life Sciences segment, particularly the Disk Drive business, inquiring if HAMR technology could accelerate growth, its connection to data center build-out, key customers, and the total addressable market. He also asked for clarification on the specific products/technologies supplied for Disk Drives and the potential addressable market for Donaldson's liquid cooling exposure.
Answer
Rich Lewis, Incoming President and CEO, attributed Disk Drive growth to AI and cloud storage, HAMR technology, market comeback, and share gains, expecting continued market runway as customers build capacity. He explained that Donaldson's Disk Drive products evolved from particle filters to sophisticated absorption technologies for harmful gases and fumes, which has driven market share gains. For liquid cooling, Lewis noted it's an extension of food and beverage products, applicable to process filtration, seeing a sharp uptick in interest as data centers convert from air to liquid cooling. He acknowledged it's an early, fragmented market with no clear standards, making the total addressable market difficult to judge currently.
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