fan balance

Underground Rock Quarry

I have previously expressed, that the unexpected challenges encountered in Field Service contribute significantly to the intrigue and appeal of the profession. My recent assignment required me to venture underground, an endeavor I found to be a genuinely remarkable experience, one that I would readily undertake again. I received a service call to balance the primary air supply fan at a local underground rock quarry. Upon arriving, I successfully completed the requisite safety training and prepared to descend below ground. To access the underground tunnel, I unloaded my van as diesel vehicles are the exclusive mode of transport permitted in subterranean [...]

Underground Rock Quarry2024-11-15T12:57:05-05:00

Vibration Issue on Forced Draft Fan

A 100 year old steam plant was having a long standing vibration issue that they could not correct. Our EMDS department determined the likely issue was the hub to shaft fit. Horner Machining Services did most of the work on this fan including: • Remove old bearing, couplings, and louvers • Press old shaft out of the fan • Sand blast the fan and louvers clean • steam clean coupling • set up new shaft and check for straightness, then install • Dynamic Balance • Paint and reinstall the original coupling Field Service did the on-site work for removal, installation, and [...]

Vibration Issue on Forced Draft Fan2022-01-26T23:26:33-05:00

Roof Mounted Exhaust Fans

A Warehouse and Logistics Company was having electrical problems with three roof mounted exhaust fans. Apparently when installed they had been wired incorrectly. Time took its toll and the units eventually stopped working. The electricians who were called in to evaluate the unit, contacted Horner to evaluate the unit from a mechanical perspective. As suspected, the fans had been installed incorrectly as well. Upon inspection by Horner the following issues were found: incorrectly wired motors – causing failure and incorrectly mounted frames – causing belt wear, sheave deterioration and bearing failure. The customer had the units removed from the roof and [...]

Roof Mounted Exhaust Fans2021-01-09T21:10:08-05:00

A Fan That Cannot Be Balanced

A power plant kept getting above normal levels of unbalance on a 5000 horsepower 720 RPM fan. They had made several attempts trying to balance the fan, all of which failed. It was then that they made the decision to call in Nelson Baxter who is the manager of Horner’s EMDS Division. Equipment: A 5000 HP 720 RPM fan at a Power Plant. Symptoms: Above normal levels of unbalance that resisted balance efforts. Several attempts were made to balance the fan, all of which were unsuccessful. Test Results: After attempting several balance shots in an I.D. fan, the casing vibration levels [...]

A Fan That Cannot Be Balanced2021-01-08T23:18:48-05:00

Obsolete Fan Wheel Fabrication

An OEM is an original equipment manufacturer. When manufactures decide to discontinue products or goes out of business, it has the purchasers and users of the product searching for solutions when they need another one. At Fan and Fab, Horner has an ace in its sleeve. We are able to fabricate obsolete fans and parts for our customers. Above is a 67” fan wheel that was sent to us from a customer. It was severely damaged and the OEM was no longer in business. Fan was able to document all the components and develop a CAD file, then laser cut the [...]

Obsolete Fan Wheel Fabrication2020-03-05T20:01:02-05:00

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