Roll slitting is a shearing operation that cuts a large roll of material into narrower rolls. The log slitting terminology refers back to the olden days of saw mills when they would cut logs into smaller sections. By today's definition, slitting is a process in which a coil of material is cut down into a number of smaller coils of narrower measure. Potential workpieces are selectively thin (0.001 to 0.215 in.) and can be machined in sheet or roll form. It is considered a practical alternative to other methods due to its high productivity and the versatility of materials it can manage. Rewind slitting involves rewinding the material through a number of knives to form narrower rolls of materials. The machine used is called a slitter.
This process can achieve a high degree of precision with minimal waste, as long as the technician plans the cuts correctly. The finished rolls can be rewound, if necessary, and packaged for shipment and sale. Roll slitting equipment can come with some preset functions to create standardized widths, and it can also be customized for specialty products. The equipment allows for high volume manufacture of a range of materials that may need to be processed quickly to be cost effective. Companies seeking equipment for this purpose may want to consider the size of their products, as well as the scalability of that size. It may be advisable to purchase a machine that is slightly larger than currently needed, to assure that the company will have room to go. Some manufacturers offer leases or used equipment to companies that do not want to buy a brand new machine, and it may also be possible to pick one up at a liquidation sale to save costs.
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