Razor Slitting; Four Factors to Consider

The three most common methods of slitting flexible web materials are shear, crush (score), and razor. Of these three, razor has the lowest installed cost, being the simplest and cheapest method. It can be easily adapted to almost any machine, in almost any location. It is potentially the cleanest method of slitting, assuming the appropriate materials are being slit. A “cutting” or “slicing” action is created by pulling the material past the stationary blade. The resultant edge depends on the characteristics of the material, its thickness, density, rigidity, plasticity, coating, bonding and other factors. At issue are blade life, slit-edge quality and safety.