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Greer upgrades four rolling mills
- January 10, 2012
- News Release
- Metals/Materials
Greer Steel, Dover, Ohio, a producer of cold-rolled steel strip to customer specifications, has completed significant upgrades on its 30-, 22-, and 18-in. rolling mills and its wire mill.
The most significant upgrades were to the 30-in. rolling mill, including the following structural and component changes:
- Upgraded gearboxes and mounting systems help minimize edge wave to improve throughput.
- Enhanced guide box helps provide better edge quality.
- Optimized roll cooling helps improve product shape and enhance roll life.
- New mass-flow software helps improve tolerances between the mill and roll checks, resulting in better Cpk performance.
- Reworked screw-down cylinders help minimize downtime and possible loss of gauge performance.
- Redesigned and reworked spindle jacks help minimize delays for misalignment during roll changes.
- Two new coolant valves help minimize coolant carryover that can result in surface defects.
The 18-in. mill received a revamped hydromation room, new coolant valves, a pump upgrade, and a refurbished primary gearbox and spare gearbox. The 22-in. rolling mill has been upgraded with a new payoff reel. The wire mill has an upgraded control panel for increased line speed with improved tension control.
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