dc motor

Made In Japan, Rebuilt In The US

Everyone is well aware of the quality of Japanese autos in today’s market. In the 1980’s, the Japanese raised the quality bar in the automotive industry, resulting in cars that were of a higher quality and remained in service for many more miles than most of the domestic autos of that time. This off-shore challenge resulted in the upgrade of quality for all American automakers, just to remain in business. This quality concept also applies to the motor repair business and is why our company has Quality Manager like Vernon Pratt, to help us keep quality at the forefront of our [...]

Made In Japan, Rebuilt In The US2020-03-12T15:46:06+00:00

Fermentation Process DC Motors

The Terre Haute shop currently rebuilds and reconditions many DC motors for an Animal Health Products customer. There are 16 600HP Louis Allis motors, 11 600HP GE motors, and 16 500HP Louis Allis motors. These motors are used in the fermentation process. At the customer site the product is produced in a lab setting then sent through the fermentation process until it grows and is completed. It takes about two weeks to complete the finished product. If a motor fails during fermentation, the entire batch will have to be scrapped. So the operation of these motors is critical. They run 24/7 [...]

Fermentation Process DC Motors2020-03-06T14:11:40+00:00

Non Standard 2000 HP Mill Stand Motor

What makes the Horner Motor Division stick out from most motor shops besides the breadth of services it offers is its ability to fix and problem solve non-standard motors and equipment. We employ some of the best winders and mechanics whose knowledge is incomparable. We received a 2000 HP Mill Stand motor from an aluminum plant for repair. Fractures were found in the risers exiting the commutator bars with a design from Siemens that would definitely be considered “non-standard.” Many of the design characterizations were due to lots of horsepower in a fairly small frame. We replaced the commutator, windings, and [...]

Non Standard 2000 HP Mill Stand Motor2020-03-05T18:06:06+00:00

Pipeline Motor Base and Loctite Coatings

A Pipeline Company had a project that was going late into October due to a 1250HP 4160V motor upgrade to a more modern frame. Once the original large existing GE 2300V motor was removed from the sled base, the surface was checked for flatness and it was found to be out close to .125”. This obviously was not acceptable for a 2 pole motor that was direct coupled to a Sulzer propane pump. Matt Phelps of Horner Fan&Fab had quoted a transition base for the newer 4160V more modern frame to meet the D dim. (shaft height). The general practice for [...]

Pipeline Motor Base and Loctite Coatings2019-09-09T18:00:50+00:00

Dredge Motors

A gravel pit in Petersburg, KY contacted John Baumann (Sales) with a problem. They had 2 motors on a dredge. A particular dredge is a floating clam shell type bucket that pulls gravel off the bottom of a lake. The motors drop and pull up the bucket from the bottom of the lake. The team at the gravel pit wanted to upgrade from a wound rotor motor and convert it to a new induction motor to be controlled by a VFD. They also wanted to upgrade the controls to eliminate a diesel generator and go to shore power. If they run [...]

Dredge Motors2019-09-09T18:01:36+00:00

2000 HP DC Shredder Motors

A recycling scrapyard in Dayton, OH had a few problems with one of two 2000 HP DC motors. The outboard motor was going through brushes and they were having flash-over issues causing field coil damage. The 2 motors are coupled together to run a shredder that shreds anything from cars, and scrap iron, to office furniture etc. The customer’s spare motor was sent to our shop at Washington Street to make sure the motor was ready to go when it was switched out with the motor needing repair. Washington Street bought and installed a new coupling and then sent the motor [...]

2000 HP DC Shredder Motors2019-09-09T18:03:25+00:00

52 to 2 Amps 1500 HP DC Drive Project With CoolBLUE

In September Horner was called out to a rubber manufacturer in Tennessee to measure common mode currents on a 1500HP DC Drive. The drive end gearbox had just failed. It was found that they had bearing fluting that went through the DC motor into the shaft of the gearbox and into the bearing. The DC drive was connected to the gearbox and that gearbox was connected to a mixer. It mixed raw rubber for the plant.  They measured that the amps were destructive and could cause damage by bearing fluting in the future and they would have the same problem all [...]

52 to 2 Amps 1500 HP DC Drive Project With CoolBLUE2019-09-18T15:36:46+00:00

Power Plant Outage

A power plant in Indiana had Horner recondition 6 large motors during an outage they had in April. The Power Plant is a coal fired electric generation plant. The key component of the power generation plant is the boiler, and is also called the steam generator. The essence of the power generation plant is to create the steam in boilers. This steam is sent at high pressure to a turbine that generates electricity. The coal is first crushed into small particles using equipment called pulverizers. A joint effort between the Terre Haute Shop, the Washington St. shop, and field service helped [...]

Power Plant Outage2019-09-18T15:37:39+00:00

Asphalt Plant Exhaust Fan and VFD Project

When you think of Asphalt you think of Roads. And if you’re in the Midwest you know how important it is to have these plants up and running with all the pot holes. The asphalt plant is mainly composed of cold aggregate supply system, drum dryer, coal burner, coal feeder, dust collector, hot aggregate elevator, vibrating screen, filler supply system, weighing and mixing system, asphalt storage, bitumen supply system. All these components have characteristics that impact not only the overall quality of the asphalt but also the effect on the environment. The plant had recently added a new line and had [...]

Asphalt Plant Exhaust Fan and VFD Project2019-09-10T16:00:17+00:00