A hospital in Indianapolis needed to replace a very old kitchen exhaust fan and ductwork. This was a joint effort between Horner Fan and Fab and Horner Field Service led by Sales Jeff Wilson. Horner Field Service did the bulk of the work while Horner Fan and Fab reconfigured a Greenheck direct drive fan and new ductwork and louver. The controls were changed from a simple on/off to a VFD that was tied into the building management system as well as reprogramming of the VFD to achieve the desired CFM of air flow. Thanks to everyone who worked over a weekend!
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 [...]
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 [...]