It is the line where the oxide layers formed on the surface of hot rolled materials are cleaned by passing through Hydrochloric Acid (HCL) baths.


General information:

Supplier Firm


SMS-Siemag Germany

Production Capacity


750.000 ton/year    ( 1.500.000 ton/year (Phase 3))

Processed Sheet Thickness Range


1,2   -  6,0 mm

Processed Sheet Width Range


600 -1550 mm

Line Speed


100 - 120 m/min    (250 m/min. (Phase3))

Roller Weight Range


min 10 ton -  max 30 ton   



Hydrochloric ( HCl )





Line Equipments:

At the entrance, there are two roll-opening mandrels and a roller anti-roll barrel

- The rollers are connected to each other via the stitcher to ensure the continuity of production at the input part.

-In the tension leveler, the oxide (tufal) layer is broken and the pickling process is facilitated. Also the surface smoothness is provided by lengthening.

-Pickled sheet which is cleaned from the oxide layer on the surface by passing through bath tanks (3 pieces); the surface is rinsed with RO water while passing through the rinse tank and then dried with hot air in the dryer.

-In the edge trimming unit; the desired width of the sheet is achieved by trimming from both sides by means of circular blades.

- In the Electrostatic Oiling Machine, both surfaces of the sheet are oiled with anticorrosive oil in desired amounts. The amount of oiling is 0.2 - 3.0 gr / m2 for one surface.

- The stitch points are trimmed vertically, the two rolls are separated from each other, and is rolled on the mandrel and produced as a roll.