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dc mill motor

Sawmill DC Motor

Last summer, we received a call from the maintenance manager of a large sawmill. To get an idea of equipment size, this large bandsaw cuts 6’ diameter tree trunks into quarter pieces. A large carriage carries the log and feeds it into a large bandsaw with a blade that is 12” wide. The quarter pieces then go to smaller saws to cut slab boards. The complaint was that the large DC mill motor was making noise. Our field service supervisor, Jim Delawder, investigated and found that the banding on the commutator end of the armature had fractured and was flopping against [...]

Sawmill DC Motor2022-01-28T17:14:56-05:00

Complex Motor Rewind – DC Mill Motor

Horner Louisville had the opportunity over the Holidays to service a customer who is a plastics extrusion company. The motor came in on an overtime basis, so it was given top priority. The customer sent in a 75Hp FUJI DC Motor that, after disassembly, inspection and testing required a full rewind and machine work that included coatings work on the armature. However, this wasn’t your every day run of the mill DC motor. The motor was a random wound compound design which is known to be a little tricky to wind. Louisville’s winder, Charlie Mings, looked at the winding and was [...]

Complex Motor Rewind – DC Mill Motor2022-01-28T15:33:09-05:00

Finish Ball Mill Motor

A 1350 HP Synchronous Motor out of a cement plant in Ohio was called out to bid and Horner won that bid. This finish mill motor comes out of a cement plant in the ball mill. The ball mill is a big round pipe that is full of steel balls the size of a softball. As the pipe turns it has blades welded on the inside which carry the balls up to the top of a 16-foot diameter pipe and the balls fall to the bottom of the pipe where the rocks are. The weight of the balls smash the rock [...]

Finish Ball Mill Motor2022-01-28T15:09:16-05:00

DC Steel Mill Motors

The Horner Springfield division received a call from a steel mill customer, located in Columbus OH. They had a failure on a tandem pair of 850 HP DC motors on their rolling mill operation. Horner Industrial Springfield division had previously rebuilt their spare DC tandem mill motor set, including rewinding one of the armatures. Springfield field service techs removed the failed motors and installed the stored rebuilt motors, at the customer’s site. We also contracted with our local rigger to remove the 16,000 lb. motors and deliver them to our shop. There are still a lot of DC motors in operation [...]

DC Steel Mill Motors2022-01-26T22:35:54-05:00

2000 HP Aluminum Plant DC Motors

An Aluminum Rolling and Recycling plant, a good Horner customer in Terre Haute brought Todd Cochran (Sales) a problem/ or opportunity to Indianapolis Field Service. The customer has two, 2,000 HP DC motors coupled together, to deliver 4,000 HP to their mill. These motors are about 5-6 foot square, and 10 feet long each. The inside motor, the one coupled between the mill and the second motor, failed and had to be replaced with a spare. This is not something they can shut down for a couple of days. Of course this happens when the Indianapolis Field Service group is working [...]

2000 HP Aluminum Plant DC Motors2021-01-08T23:55:43-05:00

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