Metal Coil Slitting Machines

Metal coil is a form of metal materials coiled into an assembled roll that is convenient for consumers to deliver their raw materials. Once it is to be used in the metal forming industry, automatic metal coil slitting lines are widely applied in all kinds of industries for the best convenience in manufacture. Metal Coil slitting is much like roll slitting, which is a shearing operation that cuts a large roll of materials into narrower rolls for industrial consumers. Within the inventory, there are two types of slitting methods, and the first one is 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. 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.

Type of Slitting Lines

There are mainly two kinds of metal working process, one is metal cutting which we all are familiar such as turning, milling, and drilling. And the other is forming, such as slitting, pressing, and drawing. Metal coil is a form of metal materials coiled into an assembled roll that is convenient for consumers to deliver their raw materials. Once it is to be used in the metal forming industry, automatic metal coil slitting lines are widely applied in all kinds of industries for the best convenience in manufacture. Metal Coil slitting is much like roll slitting, which is a shearing operation that cuts a large roll of materials into narrower rolls for industrial consumers.

Within the slitting inventory, there are two types of slitting methods commonly known by the users, and the first one is 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. 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.

Coil slitting

When metal coils are to be slit, the coil toll will be rewound out of the roll and then the slit mechanism works to cut the coil into pieces. For a viewpoint of industrial insiders in the metal forming industry, 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. 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 mechanism.

Rewinding

After that, 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 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 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. The specifications vary and the arrangement is different. If the materials are soft then it is another story. 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 machines.

Therefore, 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 rolls. The more automatic it is, manufacturers then spend fewer expenses. As a result, people are working on making the production line automatic and help their users to operate with less energy consumption. This trend together with the coming of smart manufacturing, now business owners are enthusiastic in the trend of smart manufacturing, and would love to participate in the intelligent design of their machines as well as production lines. Manufacturers all over the world are looking forward to the era of smart manufacturing that can bring them to a new paradigm of production.

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