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Case Study: Box Fan Sample Speed Adjustment

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We recently discovered a problem with our new box fan sample, which was developed for a specific client.

While the initial tests showed good results with low temperature rise, further checks found a major issue.

The fan was spinning faster than it should, going up to 1300 RPM instead of the usual maximum of 1250 RPM.

For a lightweight box fan, this extra speed can cause problems like too much shaking or the fan moving out of place.


To fix this, we’re adjusting the fan’s speed to bring it down to below 1250 RPM.

We’re doing this to make sure our fans are safe and reliable.

It’s important for us that we catch and fix any problems before we start making lots of these fans.

Customer Impact

By taking quick action to correct the fan speed, we’re showing our commitment to making products that are both safe and meet our clients’ needs.

We’re making sure that the fans we deliver are of the highest quality and safety standards.

This way, our clients can trust that they’re getting a product that’s not only what they asked for but also safe and dependable.

Need to Import Electric Fans?

SF strives to provide the most efficient and cost-effective solutions to our new and old customers, aiming to solve problems in the best way possible.

If you have any inquiries regarding importing electric fans, or if you’re looking to place orders, please don’t hesitate to contact us.

We’re here to assist you every step of the way, providing tailored support to meet your specific needs.

Mike Chung

Hi, I’m Mike Chung, founder of SF Fan, with 13+ years of experience in electric fan manufacturing and export. Also the husband of a beautiful lady and the father of a daughter who loves cats. If you looking to import electric fans, please contact me any time.

Need to Import Electric Fans?
Ask For A Quick Quote

Ask For A Quick Quote