What is a Slitting Machine?
What is a Slitting Machine?
A slitting machine, also known as a slitter rewinder machine, is a device that cuts a single wide roll of paper, film, or foil into multiple thinner rolls. A master or mill roll is first unwound by the slitting machine, who then slits the unwound material into different widths. The procedure is finished by rewinding the material onto cores of various lengths. Depending on the requirements of the customer, many configurations of slitters can be created. More information on the operation and uses of a slitting machine is provided in this article.
Roll Slitting Machine
The unwind, the slitting portion, and the rewind are the three primary components of a slitting machine. To keep the material under the right tension, the unwind is typically braked. When starting to unwind heavy rolls or when the material is extremely tension sensitive, certain machines offer a powered unwind feature that reduces the influence of inertia. Razor slitting, which is best for thin plastic film, score slitting, and rotary shear slitting are the three main possibilities in the slitting sector.
There were many options in the rewind area as well. The most common type makes use of differential rewind shafts in the middle. These shafts are becoming common on slitting machine equipment. An even tension throughout the full material width is ensured by the differential shafts. The complete tension-control system required for the operation of tension-sensitive materials is provided by closed-loop management of the winding tension. For a slitting machine, precise and exact tension control is essential. In modern machines, AC motors provide closed-loop feedback to the AC vector drives. With the right control algorithms, they can offer exceptional outcomes with little upkeep.
For tougher materials, such as sheet metal, blades cannot be used. An other method of shearing is employed instead. A huge roll is divided into several narrower rolls by two cylindrical rolls with matching ribs and grooves. This method of continuous production is more accurate than most other cutting techniques while still being inexpensive. But split edges frequently have burrs, which are jagged edges. These rolls' geometry is additionally influenced by specific tolerances, the kind of material used, and the thickness of the workpiece.
Types of Slitting Machine
Shear Slitting
Shear slitting involves a two-part knife with a male and female end through which the substrate passes and is cut. This process is ideal for fast converting and is perfect for transforming various thin materials with precision.
Razor Slitting
Razor slitting uses a razor blade or a series of razor blades mounted onto a machine that slices the material into the desired widths as it passes through. Depending on the placement of the razors, slitters using this method can convert either slowly (top) or quickly (bottom). Of the three types, razor slitting is the least expensive and is best for converting very thin substrates like films.
Score Slitting
Score involves a moving substrate passing between a solid rotating anvil and a circular rotating knife or series of blades. This method is the most popular of the three and is ideal for converting various substrates of varying thicknesses and rigidities.
This article explains what a slitting machine is and the different types of slitting. Different machines serve different purposes in different industries. If you need more information of the slitting machine, please contact us. BANGZHOU MACHINERY will provide you with the slitting machine data, to give you the technical solutions you need.
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