Month: June 2026

Cross-flow fan assembly and its three-speed fan power per tap
By longwell / June 22, 2026 / Engineering Case Studies

Three Speeds, 82W to 13W: What a Speed Tap Really Saves

Speed falls by a fifth between high and low. Power falls by six sevent...

Read More »
ec fan selection guide
By longwell / June 18, 2026 / Technical Articles

The Complete EC Fan Selection Guide: 7 Engineering Steps

EC fans have become the preferred choice for modern HVAC, industrial v...

Read More »
Longwell centrifugal fan
By longwell / June 17, 2026 / Technical Articles

How to Improve Centrifugal Fan Efficiency? 5 Optimization Strategies

Efficient airflow is the lifeblood of modern industrial and commercial...

Read More »
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...

Read More »
Shaded pole motor built with custom motor shaft tooling
By longwell / June 11, 2026 / Engineering Case Studies

Close Is Not Drop-In: Making Shaft Tooling for 4.5 x 26.5mm

Four models in the range were dimensionally close. None had the exact ...

Read More »
backward curved centrifugal fan
By longwell / June 10, 2026 / Technical Articles

What is a Backward Curved Centrifugal Fan?

Among the various fan technologies available, centrifugal fans generat...

Read More »
direct drive fan vs belt drive fan
By longwell / June 4, 2026 / Technical Articles

Direct Drive vs Belt Drive Fan: Performance Comparison Guide

Industrial fans play an important role in HVAC systems, warehouses, da...

Read More »