Slitting Systems

slitter rewinder technology

Slitting Modes

“Shear is the most versatile slitting method. It can be used for a wide variety of papers, films, lam”inates and foils.Razor slitting is the most commonly used slitting method for light-gauge films. The main advantage of razor slitting is the simple setup process as well as their inexpensive replacement cost. Razor slitting can be done two ways: an ‘in air’ configuration, or in a ‘grooved roller’ configuration to support the web during slitting.

Shear is the most versatile slitting method. It can be used for a wide variety of papers, films, laminates and foils. Shear slitting variations can be ‘tangential/kiss’ or ‘wrap’ shear which involves a spring loaded male blade against a female ring, creating a scissoring effect to slit the web. Shear slitting typically provides the highest quality edge, lowest dust and longest blade life.

Score or ‘crush cutting’ is commonly used for adhesives and certain papers. The score knife is a pneumatically loaded circular blade that sits against a hardened steel anvil. The knife then crushes the web against the anvil. Crush cutting provides quick and easy setup since there is only one holder to position.

Retrofit List

Slitter Rewinder Features
  • Auto Knife Positoning
  • Digital Knife Display
  • Pneumatic Knives

Retrofit Compatibility

Deacro Slitter Rewinders

Retrofit Compatibility

Third Party Slitter Equipment

Automatic Knife Positioning

Deacro’s auto knife positioning system allows operators to setup the slitter while the knives are being positioned. The exact positions of each knife are stored as part of the file recipe in the main Deacro controller. Operators recall new jobs at the touch of a button. Servo positioners automatically move the knives to the correct locations while the operator is free to attend other areas of the setup.

The automatic knife positioning system is servo controlled and uses pneumatic male knives on a linear rail with shear rings loaded on a pneumatic knife shaft. The pneumatic shear holders feature a shear, crush or razor attachment option for increased flexibility and efficiency.

Automatic knife positioning is particularly effective in combination with the laser core positioning system and spacerless differential air shaft option. When combined with these two options, operators drastically eliminate time-consuming setups. Operators will never need to handle spacers, shafts, setup knives or even measure core/knife positions.

Digital Knife Display

The digital knife display upgrade greatly reduces knife setup times and increases slitting accuracy. With the digital knife display system, knives are moved and locked in place manually. However, a display provides the operator with the precise knife location. The operator then moves the knife holder until the digital display reads the correct location.

The slitter’s touch control screen file recipe can store the desired knife locations for the operator’s reference. This feature eliminates the need for operators to use tape measures, reduces setup time and increases knife position accuracy. For quicker setup times, the fully automatic knife positioning system is also available.