Steel Strip Slitting Machines

Steel strip slitting machines works as one part of the automation lines integrated into the sheet metal manufacture is considered very essential and important to the corresponding manufacturing plants due to their great flexibility and supportive nature adaptive to a wide variety of applications. Regarding its structure, steel strip slitting process is much like roll slitting process, which is a shearing operation that cuts a large roll of metal materials (here the metal is steel per se) into narrower rolls for users.
 
Among the slitting inventory, there are two types of slitting methods, and the first one is log slitting and another one is the rewind slitting. Speaking of the log slitting case, the roll of material is recognized as a whole part and one or more slices are taken from it without an unrolling procedure. Regarding the rewind slitting case, the web is unwound and run through the machine, passing through knives or lasers, and before being rewound on one or more shafts to form the narrower rolls. In fact, the multiple narrower strips of material may be known as the multiple or pancakes if their diameter is wider than their width.

Type of Slitting Lines

Like steel coil slitting, steel strip slitting machines works as one part of the automation lines integrated into the sheet metal manufacture is considered very essential and important to the corresponding manufacturing plants due to their great flexibility and supportive nature adaptive to a wide variety of applications. Regarding its structure, steel strip slitting process is much like roll slitting process, which is a shearing operation that cuts a large roll of metal materials (here the metal is steel per se) into narrower rolls for users.

Classifications: Slitting methods

Among the slitting inventory, there are two types of slitting methods, and the first one is log slitting and another one is the rewind slitting. Speaking of the log slitting case, the roll of material is recognized as a whole part and one or more slices are taken from it without an unrolling procedure. Regarding the rewind slitting case, the web is unwound and run through the machine, passing through knives or lasers, and before being rewound on one or more shafts to form the narrower rolls. In fact, the multiple narrower strips of material may be known as the multiple or pancakes if their diameter is wider than their width.

Classifications: Material hardness

Besides the slitting methods, hardness is also a critical key issues that determines the way the machine cuts. For instance, for materials of hard substances, such as sheet metal materials, blades cannot be used as the cutting tools. Rather, a modified form of shearing is utilized. Two cylindrical rolls with matching ribs and grooves are applied to cut a large roll into multiple narrower rolls, and this continuous production process is economic and most importantly, precise in a great extent. This is usually more precise than most other cutting processes people have. Nevertheless, the occurrence of rough edges known as burrs are commonplace on slit edges. Moreover, the geometry of these rolls is determined by specific tolerances in addition to the type of material and work piece thickness levels.

Meanwhile, for the soft materials there are several methods which are available for soft materials such as plastic films, textiles, adhesive tapes, and paper. Razor blades, straight, or circular blades are widely adopted, and some blades cut through the material while others crush the material against a hard roll. Those are more similar to knives in an extent.

Moreover, the cutting blades can be set to a desired width, and some machines have many blades and can produce a number of output rolls at once, so the slit material is rewound on paper, plastic or metal cores on the exit side of the machine units. This process is adopted due to its low cost and high precision for mass production business model, and some machines have a program that monitors the blades and sharpens the blades in order to maintain the quality and precision of the cut. Based on the industry and the product that is being slit, these machines can operate between 10m per minute and 5000 m per minute, depending on the materials. The machines can also incorporate extensive automation to precisely control material tension, automatically position the slitting knives, and automatically align the cores on which the material is wound and to reduce manual handling of the metal rolls or say, coils.

Automatic slitting of metal strips

Today, automatic steel coil slitting lines are widely applied in all kinds of industries for the best convenience. Coil slitting is much like roll slitting, which is a shearing operation that cuts a large roll of materials into narrower rolls for users. In among the inventory, there are two types of slitting models. First of all is the log slitting and another is the rewind slitting. Regarding the log slitting case, the roll of material is treated as a whole part and one or more slices are taken from it without an unrolling procedure and mechanism.

Speaking of the rewind slitting case, the web is unwound and run through the machine, passing through knives or lasers, and before being rewound on one or more shafts to form the narrower rolls. In fact, the multiple narrower strips of material may be known as the multiple or pancakes if their diameter is much more than their width. For the slitting of hard materials, such as sheet metal materials, blades cannot be used as the cutting tools. Rather, a modified form of shearing is utilized. Two cylindrical rolls with matching ribs and grooves are applied to cut a large roll into multiple narrower rolls, and this continuous production process is economic and most importantly, precise in a great extent. This is usually more precise than most other cutting processes people may use.

In spite of that the occurrence of rough edges known as burrs are commonplace on slit edges. Moreover, the geometry of these rolls is determined by specific tolerances in addition to the type of material and work piece thickness. The specifications vary and the arrangement is not the same anymore.

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