PCT Engineered 72” 4-High 2000 HP Cold Mill User Manual

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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.