Crop Shear Safety Brake
PROBLEM Our steel mill customer experienced blade drift on his crop shear during “cobble cuts.” This not only represented a safety concern, but it occasionally made contact with the steel, resulting in production problems. SOLUTION We reviewed their overall process to identify location options […]
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Wire Processor Quick Coupling Repair
PROBLEM A steel wire processor used a rubber element coupling to drive a draw works. Over the years, shock loads and misalignment resulted in regular element failures. The coupling failures necessitated an extended down time because the motor had to be moved to replace […]
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Reducing Maintenance On Overhead Cranes
PROBLEM Our customer was relining his drum brake shoes every 2-4 weeks. Since we were supplying the linings, it was good for us but we realized it was not good for our customer. We suggested that they let us review the application. SOLUTION We […]
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Stamping Press Keyway Wear
PROBLEM Our customer operates a relatively large, high cycle rate press that consistently “wallowed” out the key way. As often happens, this situation snowballed until the key failed and the shaft was damaged. Despite careful attention and tighter tolerances, they still found that this […]
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Universal-Joint Solves Misalignment Problem For Steel Mill
PROBLEM The existing Ajax gear coupling could not cope with the misalignment required for this pickling line drive. The lubricant leaks out because of grease seal wear causing the coupling to fail. Because there are a number of couplings involved, this problem generated significant […]
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Slitter/Rewind Excessive Brake Heat
PROBLEM Our customer operates an old slitter/rewind. As usually happens, they were pushing for more and more production. Higher speeds and increased tension resulted in excessive heat. The higher temperatures resulted in excessive brake wear. SOLUTION This is a classic situation, trying to do […]
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Wean Mandrel Wear Liners
PROBLEM During normal operation, four cast iron components ride against an unlubricated circular aluminum bronze segmented liner ring. Unfortunately, this customer was experiencing high wear resulting in undersized inner coil diameters and steps in finished coils. The liners also required frequent replacement. SOLUTION We […]
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Uncoiler Feed
PROBLEM Starting and threading steel from a 5000 pound coil to a slitter can be very tough. Our customer had a stand with a hydraulic motor and mechanical clutch to feed the coil strip. Unfortunately, the starting shock regularly destroyed the clutch. SOLUTION We […]
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Large Spindle Upgrade
PROBLEM This steel mill is currently operating a slipper spindle coupling on their large reversing roughing mill. Unfortunately, they do have a high wear rate and the associated “slapping” causes other wear and fatigue failures in the drive system. SOLUTION A more popular approach […]
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Rolling Mill Spline Problem
PROBLEMThis Pennsylvania steel rolling operation had a midshaft spline seize. The rest of the drive was in good shape and less than a year old. There hadn’t been any serious “crashes”, so they were puzzled as to what happened. SOLUTIONWe reviewed the system and […]
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