Braner/Loopco Completes RSDC Project

The Cluster Levelers are capable of correcting strip shape defects, removing cross bow, and de-burring slit strips at line speeds to 1,200 FPM. Because of the concern for surface condition, both Cluster Levelers are equipped with 6-high intermediate back-ups, and chrome plated work rolls. The concern for the coil surface condition was so great that both lines are completely covered by special transparent overhead canopies so that any debris from the overhead cranes cannot fall onto the strip. An unusual request that was successfully accommodated by Braner/Loopco.

Because of the huge light gauge tonnage required by RSDC's customers, slitter running efficiency is of paramount importance. Both lines are equipped with features designed for fast coil loading, fast threading, fast Slitter head changes, fast Tension Roll changes, fast Tensioner strip separator changes, fast Overarm Separator tooling changes, and fast Recoiler drum diameter changes. Running time is enhanced with Braner/Loopco's patented quick-change "Turret Head" Slitters. Both the 77" and 84" lines are equipped with three (3) head Turret Slitters capable of effecting slitter head changes in 2 minutes. Lubricated and dry coils require different Tension Rolls, and exchanging Tension Rolls for each product can be a time consuming process. Patented "Duplex" Roll Tension Units with "crane-free" 60 second roll exchange time are included in both lines. Tension Stand and Overarm Separator strip separators must be changed for each order, another time consuming task. Separator tooling change is accomplished in 2 minutes via Braner/Loopco's unique speed load tooling sleeve and set-up fixture design.

RSDC's customers require both 20" and 24" I.D. slit coils. Changing Recoiler drum "filler plates" is a huge waste of running time, often taking 15-20 minutes to install, and 15-20 minutes to remove. The 77" and 84" Recoilers are equipped with Braner/Loopco's new "Magnetic Speed Load Filler Sleeves" that change from 20" to 24" I.D., and vice-versa, in 60 seconds. No bolts, no crane.

Scrap threading and disposal also wastes valuable running time, so both lines are equipped with Braner/Loopco "Helical Cutter" Rotary Scrap Choppers and scrap conveyors. In order to cut coil threading time, both the 77" and the 84" Slitting Lines were designed and built as "high pass line" lines.

As opposed to "low pass line" slitting lines, high pass line slitting lines allow much faster threading because the coil is never "reverse bent" during threading from the Uncoiler to the Entry Unit, or from the Exit Unit to the Recoiler. The high pass line also reduces the chance of inducing "coil breaks" during unwinding and rewinding.

20,000# x 24" wide x 84" O.D. Automatic Slit Coil Packaging Line

Three (3) Four Arm Horns provide coil storage for a dozen coils after the two slitting lines. An "operatorless" Programmable Downender automatically retrieves slit coils from the Transfer Horn, and downlays the coils onto the Packaging Line conveyor. A Semi-Automatic Coiltech Strapping Machine applies radial bands to the slit coils, and an Automatic ID/OD Coil Stacker automatically stacks the coils onto shipping pallets. An eight station color coded Turntable allows for coil sorting by size and customer.

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