PCT Engineered 72” 4-High 2000 HP Cold Mill User Manual
Page 2
© 2006 PCT Engineered Systems LLC. All Rights Reserved
5433 Tremont Ave.
Davenport, IA 52807
563.391.8011
FAX 563.391.8432
www.teampct.com
The Solutions Team
Once improved shape control was established, the mill became less of a bottleneck in regard to
production throughput. New, electric drive controls that use a Eurotherm/SSD digital drive system to
improve speed control on the existing motors, reduced between-coil time were also added. By
improving speed control, PCT has helped Norandal USA increase the amount of useable product per
coil. PCT also provided a new control system including a GE 90-70 PLC system employing a fiber optic
link to the digital drives, and linked via Ethernet to the Mannesmann Demag Maras mill control system.
Other modifications provided by PCT included:
• Operator interface stations in the pulpit and on
the mill
• A new operator’s pulpit and control consoles
• A new trim removal system
• High- and low-pressure hydraulic piping routing
and installation
• Electrical conduit and cable installation planning
and labor
• Remanufacture of the hydraulic gap cylinders to
facilitate the improved gauge control
For a project of such magnitude, this complete
turnkey upgrade was completed with minimal
downtime. To date, the mill has outrun production
expectations, and Norandal USA has reported
significant improvements in product shape and
flatness.