The Disc & Drum Shear is placed between the Roughing and intermediate Mill.
- To Cut the front and back end of the squares upto 32 mm at 900o C
- In case of misroll at the Intermediate or Finishing Mill the deviator pipe is shifted directing the bar to the Drum Shear which cuts It into scrap pieces
In the mills the Snap Shears are mounted on repeaters to cut the bar in case of misroll, but the bar which is coming from the Roughing Mill is continuously fed into the mill is getting entangled on the roll. This feeding of the bar is stopped by cutting at the Drum Shear, thereby drastically reducing the down time of the mill in case of misroll.
- Both Disc & Drum Shear are with case carburised, hardened & ground gears, (almost eliminating teeth wear) with near zero backlash.
- The cut pieces at the Drum Shear are collected in a tray placed under the silo, keeping the surrounding clear and enabling easy removal.