Contract slitting is one of those processes that are done when huge rolls of a product are cut down to a more manageable size, mainly by an outside contractor, so that it can be sold on in smaller loads. OEM slitting machinery is the thing that does the cutting and it can even cut things down to plastic wrap size.
One good example of this kind of processing is the old-fashioned audio tapes that we are all so familiar with. Although this tape is made on vast rolls, it really is cheaper to do it this way, it does need to be cut down to ninety minute segments so that it can be rewound onto the cassette boxes. This price saving is passed onto the customer who would otherwise not be able to afford this product.
The thing about these processes is that they are often done offsite to where they are manufactured. No one company could afford all the machinery needed to undergo this kind of work so it is good that third-party companies have taken up the slack in this instance. Although this tape seems to be quite a cheap commodity, when it is made in vast amounts it becomes a high-priced commodity indeed.
Even things like the cooking foil that we use to wrap meat is made in this way and considering that this is indeed metal, it is a bulk item that uses specialized machines not only to carry it but to cut it too. Once cut down to size, the foil is repackaged in packs that we are all familiar with and sent out to the shops for onward sale.
One can imagine the kind of machinery needed to do all this kind of work. Automatic machines are there of course, but there are those which need to be operated by hand too. Automatic machines have some good innovations like touch sensitive blades so that the machine stops operating if the machine detects that something is not quite right. Because of this, very little material is lost along the way and this in turn saves money for the consumer in the long run.
Anyone who has bought into the manual machine style will be able to upgrade this later on and make it automatic as and when the work allows. However, depending on what commodities are going through this machine, it may be a good idea to keep everything manual throughout.
Finally, these kinds of companies tend to do all kinds of industrial processes. Everything from spraying plastics onto fencing or even providing plastic paint to go onto the sides of buildings comes from this source.
Try looking up different companies online to see what they can provide even if it is not needed at this time. Indeed, having this knowledge in advance often makes it easier when a job comes up and the research has already been done. It makes for good reading anyway and since most of us do not know what goes on in this kind of venue, it is good just to read what they can do.