2019
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Tarnos - France
Hot straightener commissioned in four days
Following the successful startup of the 500,000 tpy heavy plate mill in 2018, LDL contracted Russula to integrate a 1600 ton-force hot straightener machine into its production line. In order to install the hot straightener, the existing foundation had to be modified. Russula provided the foundation design, reinforcement specifications and bill of materials. Russula also supplied the drives and control of the main hot straightener motors. The two motors drive a single gearbox, as a result, speed control is very important, therefore the drives of each motor are configured as master-follower.
”It is always more challenging to integrate and commission mechanical equipment that we haven’t supplied. In this case, the straightener was supplied by a 3rd party company. But all the automation was carried out successfully and to the full satisfaction of our client, Laminoirs des Landes.”
José Manuel García, Project Manager, Russula
The hot straightener is highly automated allowing LDL to measure and control the hot plate leveler, pressure drop, side roll device, spindle bracket lifting, changing roll and continually monitor the hydraulic, grease lubrication and oil lubrication systems. All functionality was integrated into the existing ControlLogix PLC.
February 2019 startup
The Russula team was on-site and proficiently commissioned the new hot straightener in 4 days as scheduled in Februrary, 2019. It was successfully incorporated downstream of the heavy plate rolling stand.
