Cold Chain & Refrigeration

Refrigeration fans must start reliably at low temperature, resist frost and washdown, and still run efficiently around the clock. Articles cover evaporator and condenser fan differences, EC upgrades in display cases and cold rooms, and refrigerant-transition impacts on fan specs.

Cleaning a mini-split blower wheel cross-flow drum inside the indoor unit
By longwell / August 21, 2026 / Fan Engineering Guides

Cleaning a Mini-Split Blower Wheel

The cross-flow drum inside a mini-split collects a film of dust and bi...

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LWAA4E550S-5MEB-02 axial fan
By longwell / July 27, 2026 / Engineering Cases

LWAA4E550S-5MEB-02 AC Axial Fan for HVAC Condensers

Case study on an 8,755 m³/h AC axial fan for HVAC condenser units. See...

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By longwell / July 18, 2026 / Engineering Cases

LWAA4D450S-5MEB-39-00 AC Axial Fan for Condenser Units

Case study on a 450mm AC axial fan delivering 7,004 m³/h for a commerc...

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LWAA4D350S-5MKB-22-00
By longwell / June 26, 2026 / Engineering Cases

LWAA4D350S-5MKB-22-00 380V AC Axial Fan for HVAC Condensers

An OEM required a 380V 60Hz AC axial fan for a new line of HVAC conden...

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axial fan blade
By longwell / June 24, 2026 / Engineering Cases

406-522mm LWA Series Axial Fan Blades for HVAC Condenser Units

An HVAC OEM required a portfolio of four robust axial fan blades (406m...

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Cross-Flow-Fans-for-Display-Cases-and-R
By longwell / March 26, 2026 / News

Cross Flow Fans for Display Cases and Refrigeration

Cross Flow Fans for Display Cases and Refrigeration Engineering Guide ...

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By longwell / January 20, 2026 / News

LONGWELL Makes a Grand Debut at the Turkey International Refrigeration Exhibition with Its Latest EC Ultra-High-Efficiency Motor Fan

Energy Efficiency Surpasses 92%, Leading the Green Revolution in HVACR...

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How Cross Flow Fans and Blowers Tackle Cooling Challenges in Tight Spaces
By longwell / October 28, 2025 / News

How Cross Flow Fans and Blowers Tackle Cooling Challenges in Tight Spaces

You often have hard cooling problems in small spaces. Heat rises quick...

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By longwell / April 30, 2025 / Brand

Closing Today! Longwell Welcomes You at Booth W4-B47 Until 4 PM

Closing Today! Longwell Welcomes You at Booth W4-B47 Until 4 PM The 20...

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