Slitting Steel Process
The slitting machine has 3 main components and a lot of other sub-components which assist in the slitting process. The three main components to a slitting machine are: an uncoiler, the slitter head and a recoiler. To ensure
that the slit coil have the precise quality and finish as desired it is necessary to ensure in the pre-setup that the cutter spacing and clearances are set correctly and that the cutters are sharp and are not worn out.
The coil to be slit is first loaded on the arbor of the uncoiler with the help of the EOT crane. It is then unwinded with the help of the motor and flattened in the next stages with the help of pinch rollers so that the
waviness or unevenness in the coil is removed. The flattened coil is then moved through the slitter head where the setup is adjusted as per the width and no. of slits required by the customer. The extra waste on the
sides of the coil is rolled up on the scrap winders placed adjacent to the slitter heads.
The slitted materials or strands of coils are then measured by our team of professionals for quality assurance. The slitted coil is then made to pass through a loop-pit so that enough time is available for the re-coiler
to roll up the coil again. Before wrapping the material backup, the material is then placed through a set of discs called separators to guide the slitted material to the recoiler. The aluminum or steel material is then
rolled back into a coil and packaged so it can be ready for shipping to our respective clients.
At SSSPL we perform metal slitting services with a special emphasis on narrow slit coils. Additionally, we are proud to offer slitting services on all of the rolled metals listed below:
Hot Rolled Steel
- Hot rolled steel refers to steel that has been rolled at high temperatures. Since it is frequently created without any interruptions in the process and so does not require reheating, it is typically less expensive
than cold rolled steel. Hot rolled steel strands from the coils are used in the welding and construction industries to create railroad tracks and I-beams.
Galvanized Iron
- Galvanized iron is iron that has been coated on the outside with a protective zinc covering. Weather-related deterioration of iron is a concern because iron rusts and corrodes when exposed to moisture and oxygen.
The presence of rust and corrosion can eat through the iron over time putting its structural integrity in jeopardy. Galvanization is a simple and effective approach to avoid this and protect iron from weather-related
deterioration. The GI strands are particularly used in equipment's prone to corrosive chemicals such as boilers, pressure vessels, shipping drums, cryogenic vessels etc.
Stainless Steel
- More than 10.5 percent chromium must be dissolved in the austenitic or ferritic mixed crystal for stainless steel to exist. A protective and dense passive layer of chromium oxide forms on the material's surface
because of the high chromium content. This passive layer can also be used to color the steel surface after a particular treatment. Other alloy components, such as nickel, molybdenum, manganese, and niobium,
contribute to improved corrosion resistance and mechanical qualities. Because chromium is less expensive than nickel as an alloying element, a higher chromium content with a lower nickel percentage is desirable
(assuming the same corrosion resistance).
- Stainless steel is first made in slabs which are then converted to coils using a Z mill before being further rolled. The width of these broad coils is usually around 1250mm. The stainless-steel strands are typically
used in the production of equipment's such as watches, utensils, tubes and pipes etc.
