Considerations for buying a rewind slitter

The need for higher productivity has necessitated rapid conversion. This, however, can come at the expense of roll quality since rolling at high speeds leads to air being trapped in between the sheets of the roll and making the rolling slide against each other when working on it. This redundancy necessitated the development of a slitter rewinder.

How splitters work

It works on the principle of the top riding roller that prevents the formation of a sheet of air between the layers and guarantees a constant contact surface during the winding of the roll. It pushes out any air that would have ended up spoiling the quality of the roll at low speed. This application can be as simple as mounting paper cores on an aluminum shaft. However, at high rates, balancing the top roll becomes imperative to maintain the structural integrity of the roll. Both high speed and low-speed rolling have their advantages and disadvantages that are defined by the materials used and the processing conditions.

The components of a slitter

Slitter rewinders are of different types. These include the surface wind slitter. Center wind slitter and the duplex wind slitter; Elite Cameron Slitter Rewinders feature front and rear bed roller, a nip roller, and a top ridder roller. The paper core sits on the bed rollers, and the top rider roller controls the rigidity of the roll while the nip roller is instrumental for roll changeovers. Elite Cameron Slitter Rewinders are built in many configurations depending on the requirements of the task. Slitters are elaborate modular machines that can handle a plethora of functions. Slitter technology has advanced to allow web edge guidance, vacuum splitting tables, dual braking systems, automatic knife position, and automatic laser core positioning systems, and ergonomic touchscreen controls.

Tips for buying a slitter

The method of slitting chosen is the best consideration for selecting a slitter rewinder. It is key to the success of a company that they understand slitter rewinders are modular devices that can be built to specifically fit the operations of the company. The operation parameters, safety, and simplicity should be the underlying factors in the decision of the choice of the slitter. You need to analyze the vital aspect of each slitting method. To do this, a lot of consideration has to be put into the material being slit and the speed requirements of the facility.

Methods of slitting

The most common methods of slitting are razor slitting, score slitting, and shear slitting. Razor slitting uses a razor edge surface to cut the material. The material is passed over the blade after being unwound to be cut. After that, it is wound into child cores. This method is essential in the splitting of plastic sheets and films. Shear splitting on the other end uses knife edges that imitate the action of a pair of scissors. It is practical in the slitting of non-woven materials, such as foils, films, and paper.

Choosing the appropriate technique

Score slitting works by pressing a knife’s edge onto the materials in a process alternatively known as crush cut slitting. It is a broad spectrum splitting technique and can work on a lot of materials. In view of the above methods, it is imperative that you choose a technique that augments your production process and also meets your budget considerations and costs of operations. Additional features such as duplex rewind or turret, shaftless unwind with floor pickup automatic knife settings, and core alignment options can be chosen in tandem with the nature of operations.