ac motor repair

Cement Plant Raw Mill Motors

A Cement Plant in Louisville decided to purchase a spare 4500 Hp motor for their Raw Mill to back up a motor that had been in operation for years. A Raw Mill is a piece of equipment used to grind up materials into a raw mix during the manufacture of cement. The raw mix is then fed to a kiln, which transforms it into clinker, which is then ground to make cement in the cement mill. The company did their due diligence and sought out quotes for a replacement motor. When all of the quotes came back, they were surprised at [...]

Cement Plant Raw Mill Motors2021-02-17T19:59:21+00:00

Centrifugal Force – What Is It?

The words “centrifugal force” were first used in the year 1698, so it is far from a new concept. A dictionary definition is “the apparent force that is felt by an object that is moving in a curved path that acts outwardly away from the center of rotation.” We have all felt the effects of centrifugal force when we are driving our car or truck and turn a corner at a high rate of speed. As long as we are moving in a straight line, we do not feel this force but when we exit the highway at a high rate [...]

Centrifugal Force – What Is It?2021-01-10T16:32:56+00:00

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+00:00

Oil Filter Manufacturer Press Upgrade Project

Most of us are old enough to remember the oil filter commercial tag line, “pay us now or pay us later.” Well, those oil filters are made in a facility in Greenville OH and are stamped out on several large stamping presses. These presses were designed with eddy current clutch and motors to drive the press flywheels to enable variable speed operation. Over the last 30 years, the clutch drives have required high maintenance and were undependable. Now on to the solution; Mark Russell (outside sales) had several meetings with engineering staff with assistance from Dave Whited (product sales), Kim Shellabarger [...]

Oil Filter Manufacturer Press Upgrade Project2020-03-11T17:10:36+00:00

Pallet/Mulch Manufacturer Rescue

A Saturday at midnight Horner rep Dennis Cardwell received a call from a local pallet/mulch maker saying that their 750 HP motor had broken the shaft. Dennis set into motion after hours to see if a motor could be located only to find the motor was a special OEM build and we could not quote the motor. Not being satisfied with this Dennis contacted Craig Hallett (Inside Sales Manager) for a meeting to see if we could find a motor that would come close and perhaps do some modifications. As it turns out we located a stock 800HP TECO-Westinghouse motor with [...]

Pallet/Mulch Manufacturer Rescue2020-03-05T19:33:38+00:00

Horner Rescues Motor Manufacturer Hit by Tornado

A motor manufacturer that produces motors for the rail industry. Their facility in Dayton OH was devastated by a tornado on Memorial Day weekend, last year. Since then, the Horner Industrial Springfield Division has been assisting their engineers to get their products tested and prepared for shipment to their customers. Last month, we were asked to start up a program to wind new 100 HP fan stators for the customer. They sent one of their winding engineers to our shop for a week to teach us their winding methods and materials. The engineer was a winding supervisor at the Springfield shop, [...]

Horner Rescues Motor Manufacturer Hit by Tornado2020-03-05T19:11:07+00:00

Aluminum Plant Outage

In June of 2017 an Aluminum plant contacted us to begin the early planning stages of their outage which was scheduled for January 2018. The customer was about to undertake the most involved outage on their primary mill and wanted Horner’s exclusive involvement. The outage was a success despite the very large scale and daunting tasks assigned. All work was coordinated by Ralph Coonce of field service. If you’ve ever seen Ralph in action during an outage I don’t have to explain that he doesn’t just show up. He’s elbow deep in the actual work turning wrenches or any another task [...]

Aluminum Plant Outage2019-09-09T17:28:00+00:00

Motor on Fire : Open Frame DC Motor With A Burned Brush Holder

Horner Industrial received a call from a Steel Producing Customer that they had a large open frame DC motor with a burned brush holder on a motor. Troy Elder (Fort Wayne) was our “first responder”, grabbing a Megger, and camera, he rushed to the customer site to help them out. However, when he arrived at the site, he knew they were in real trouble. The motor had gone to ground and had caught fire, but unbelievably, it was still running when they realized they had a problem. Troy contacted MFS who assembled a crew at a moment’s notice to travel to [...]

Motor on Fire : Open Frame DC Motor With A Burned Brush Holder2019-09-03T14:48:55+00:00

Marine Field Service Work: Riverboat

The first week of July is always the busiest week for our field service group. As luck would have it, I received a call from two customers for field service work – on the water. Service Call #1: I consulted with Rich Streitmarter, Ralph Coonce and Jim Delawder and of course, our field service resources were tapped out. Jim offered to pull a new field tech, Gabe Mercuri, from a job if I could assist him as Gabe has only been with us for about a month. The good news was that Gabe has a lot of mechanical and hydraulic experience [...]

Marine Field Service Work: Riverboat2019-09-10T16:00:16+00:00

1500 HP Aggregate Mill Motor

A large aggregate company in Southern Indiana that Horner Industrial has serviced for years contacted Horner as they had a 1,500 HP 180 rpm Open Frame AC Wound Rotor/Synchronous motor that needed to be removed, rewound, and reinstalled. This motor was manufactured in the 1950’s and it was one heavy piece of iron. (42,000lbs) Once it was removed, transporting it posed a challenge to Horner’s Logistics Department as it had to be transported on a special “low-boy” semi-trailer due to its size. We had to make sure that it would pass under all the overpasses on I-65 from Louisville to Indianapolis. [...]

1500 HP Aggregate Mill Motor2019-09-10T16:00:16+00:00
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