Cold Rolling

The cold rolling mill complex comprises of the four units CRD I, CRD II & CRD III & CRD IV . CRD I , CRD III & CRD IV comprises a combination of 20 Hi Sendzimer mills, annealing and pickling lines and various sophisticated associated equipments and processing lines to produce Cold Rolled Coils and Sheets with quality surface finishes, precise dimensional control and good flatness control in wider coils (>600mm width). The facilities at Hisar is equipped to produce and sup-ply material in 2D, 2B, No.3, No.4 and BA surface finishes. CRD II is engaged in production of precision strips in thinner sizes (0.05mm to 0.50mm thick) e.g. Razor Blade, other ferritic and Martensitic stainless steel.

The present installed capacity of cold rolled products is 1,50,000 TPA.

Coil Buildup line
Coil buildup line is used to attach leader ends in hot rolled coils for increasing the overall yield of coils. It is also equipped with edge trimming to improve production for further opera-tions. s.

Skin pass Mill
The skinpass mill is designed and installed in dust proof housing. It is used to give cold rolled pass by polished ground work roll on 2D finish dull material to convert to 2B bright surface finish. The mill is designed to meet requirements in 600 to 1600mm width coils in 0.40 to 3.00mm thickness.

Slitting Line
Slitting lines are used to side trim the coils and cater the market requirements in smaller width coils with a thickness from 0.45mm to 6MM.

Strip Grinding Line
The strip Grinding line is used to produce No.3, No.4 and some special finishes requiring grinding which is used for decorative purposes in architectural applications, restaurant equipments, dairy equipments, lifts, elevators etc.

Shearing Line
The flying shearing line with Voss Leveller is used to produce sheets with good flatness which is the first and foremost requirement of customers.

Annealing and Pickling line
The annealing and pickling line is used to anneal and pickle Hot Rolled stainless and Cold rolled stainless steel coils. The continuous annealing and pickling line is equipped with a neutral electrolyte tank for pickling by Ruthner process using sodium sulphate for the neutral electrolyte, scanacon system for acid recovery and removal of metal content.

Bright Annealing line
The bright annealing (BA) line at Jindal Hisar works is one of its kind in India. The annealing in BA line is done in controlled atmosphere of cracked ammonia to avoid any oxidation of metal which ensures a bright finish called as BA finish.

RAZOR AND SURGICAL BLADE STEEL
Jindal Stainless is an exclusive producer of stainless razor blade steel in India. . The microstructure of our strips is designed to optimize / facilitate hardening, sharpening and honing operations at customers end and to develop ideal characteristic for intended end application. These are achieved with stringent quality checks utilizing modern and sophisticated testing equipments such as Metallurgical microscope with advanced image analyzer, digital micro-hardness tester, microprocessor controlled Tensile testing machine and scanning electron microscope. Persistent R & D activity had led to the improvement in quality of product enabling us, not only to cater to the Indian razor blade steel requirement but also to export a substantial quantity on a regular basis.

The current capacity for precision strip production is 12,000 TPA

COIN BLANKS
Jindal Stainless has been supplying AISI 430 grade ferritic stainless steel coils & blanks to India Govt. Mint & Foreign mint for making coins on regular basis. To diversify its product range, coin blanking and associated processing facilities of world-class quality has been installed and commissioned. .

At present Jindal Stainless is supplying Ferritic Stainless Steel coin blanks of denomination of 25 Paise, 50 Paise and 1 Rupee to Govt. of India, Mint. In addition to these we have developed Cupro-Nickel coin blanks of 2 and 5 rupees denomination. The present installed capacity for coin blanking is 10,000 MTPY.

Production Process
The cold rolled and bright annealed coils are processed at coin blanking lines. This comprises of a blanking press, deburring machine, edge rimming machine, annealing furnace and polishing machines. Subsequently the coin blanks are inspected on Inspection Conveyors, then counted by counting machine and packed in drums for despatch.

The punched out strips of AISI SS430 is a by-product while making coin blanks. These are aesthetically pleasing and elegant and have a vide variety of applications such as cable trays, kitchen racks, Paper Basket etc. These can be supplied in coil forms.

Cupro-Nickel Complex
In order to expand the business for coin blanks, an independent production line has been installed to produce high value copper-base non-ferrous alloys importantly cupro-nickels. The production facility includes induction melting, continuous horizontal strip casting, cold rolling, annealing, pickling and slitting. The installed melting and casting capacity is 6000T per annum. Apart from Cuppro-Nickels, the unit can produce Aluminum-Bronze, Phosphorus Bronze, Nickel-Silver and Tin bearing copper for various engineering and jewellry applications. Aluminum-Bronze along with Cupro-Nickel is used to manufacture duplex coins.