High Speed Precision Slitting Lines

For users of massive raw materials in the metal forming industry, high speed precision slitting lines are widely adopted and widely applied in all kinds of industries for the best convenience in the manufacturing sites. Generally, coil slitting is much like roll slitting. This is a shearing operation that cuts a large roll of materials into narrower rolls for users. Among the inventory, there are two types of slitting, first 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. 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.
 

Type of Slitting Lines

High speed manufacturing is a key to massive production, and for users of massive raw materials in the metal forming industry, high speed precision slitting lines are widely adopted and widely applied in all kinds of industries for the best convenience in the manufacturing sites. Generally, coil slitting is much like roll slitting. This is a shearing operation that cuts a large roll of materials into narrower rolls for users. Among the inventory, there are two types of slitting, first is log slitting and another is the rewind slitting.

Slitting

A slitting line, by definition, works by cutting a large roll of metal into multiple, narrower rolls. It is a continuous production procedure that is very precise and accurate. As a matter of fact, it is one of the most precise ways to cut metal compared to other processes. Many manufacturers ensure that customers’ metal materials can be cut to their specifications from time to time. 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. 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.

Automatic slitting of coils

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. 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. 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

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 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.

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