Day: June 12, 2026

Custom 310mm cross-flow impeller in glass-filled composite for an FCU
By longwell / June 12, 2026 / Engineering Case Studies

Custom 310mm Cross-Flow Impeller for Commercial HVAC Units

Shortening an impeller sounds trivial until you have to hold 0.3g of r...

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OEM axial impeller, 158mm, in glass-filled polypropylene with hub insert
By longwell / June 12, 2026 / Engineering Case Studies

OEM Axial Impeller for HVAC Units, 158mm: Case Study

The customer wanted a 6mm bore. Our standard part has 15mm. The choice...

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EC plug fan, 250mm backward-curved, mounted in a compact air handling unit
By longwell / June 12, 2026 / Engineering Case Studies

EC Plug Fan for Compact AHU: 1730 m3/h Case Study

A dense coil and a fine filter make pressure the constraint, not airfl...

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Quiet 24V DC cross-flow fan, 368mm impeller, for HVAC and electronics
By longwell / June 12, 2026 / Engineering Case Studies

Quiet 24V DC Cross-Flow Fan for HVAC and Electronics: 305 m3/h

A request for a STEP file tells you a lot. It means the mechanical des...

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data center selection
By longwell / June 12, 2026 / Technical Articles

Data Center Fan Selection Guide: How to Choose the Right EC Fan?

Today’s procurement engineer isn’t just selecting an EC backward-curve...

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High pressure DC centrifugal blower with PA66 housing for a CRAH unit
By longwell / June 12, 2026 / Engineering Case Studies

High Pressure 310V DC Centrifugal Blower for CRAH Units

Data center air is expensive to move because the path is full of resis...

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