MARCHANT MILL

The "350 mm" Merchant mill is a semi continuous high capacity mill designed to roll 500,000 tones of finished products per year as per present market demand. Main products are :

Rounds Bars :- 28,32,36,40,50,53,56,60,63 & 67 mm dia; TMT bars of 28, 32, 36, 40 and 45 mm are also being rolled.

Angles :- 50x50, 65x65, 75x75, 80x80 and 90x90 mm leg lengths and thickness ranging from 5 to 10 mm.

Channels :- 100x50, 75x40 mm.



Raw materials :-

Raw materials used are billets of size 100x100, 105x105, 110x110, 150x150 and shaped billet of size 122x135x80, length ranging from 5 M to 6 M. Billets are supplied from billet yards by magnetic cranes on to the charging device. Three charging devices are installed one in each of the three bays of billet yard. Approach tables at the billet shipment in the first, second and the third bays are designed to push the billets on the furnace approach roll table. Furnace approach table, which extends upto the first bay in billet shipment, is designed to receive billets from the charging devices and deliver them to the furnaces. The furnace pusher installed at the charging side of the reheating furnace, pushes the billets after leveling from the approach roll table into the furnace and moves the entire charge in the furnace pushing the heated billets on to the delivery roll table at the discharge end of the furnace.

The Merchant Mill consists of three main sections :
1. Re-heating furnaces.
2. The mill stands and cooling beds.
3. Finishing zone & shipping.


Reheating furnaces : -

There are three re-heating furnaces installed in the mill to heat the billets to the required temperature necessary for hot rolling . Furnaces are continuous, end charging / discharging type. The capacity of each furnace is 60 ton per hour.