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What slitting method is best for my process?


Here are some advantages and disadvantages of each some of the most popular slitting methods:

Description:
Shear slitting is the most common. It incorporates male and female knife blades. This slitting method cuts like a pair of scissors with the male knife side-loaded against the female knife blade.

Advantages:

  • When properly applied, slitting dust can be minimal.
  • Most common slitting type. Lots of suppliers to choose from.
  • Most accurate cut.
  • Well suited for very high speed applications.
  • Can be automated to speed up knife blade set-up.
  • Works well for almost any type of web.

Disadvantages:

  • One of the most expensive types of slitting
  • Can be time consuming to set up. Because both the male and female knife blades must be properly positioned relative to the web and relative to each other.
  • Slitting Dust.
  • Systems can be complex.

Description:
Score slitting is very common. It incorporates a score knife which is loaded against a hardened steel anvil. This slitting method cuts like a pizza cutter (for lack of a better comparison).

Advantages:

  • This is a very common slitting method and there are lots of suppliers to choose from.
  • Well suited for relative high speed applications.
  • Very simple systems.
  • Very easy and fast to set up.
  • Low initial expense.

Disadvantages:

  • Extremely high speeds can be a problem.
  • Edge accuracy can be effected by knife wobble.
  • Slitting dust.
  • Not well suited for certain types of webs.
  • Blades must be maintained properly.

Description:
Razor slitting is uncommon but it is used where necessary. Razor slitting incorporates a razor blade inserted into the web supported by lead in and lead out idle rolls or razor slitting can use grooved rolls for web support.

Advantages:

  • Inexpensive.
  • Simple.
  • Fast and easy to set up.
  • Replacement blades are generally easy to get and they can be very inexpensive.

Disadvantages:

  • Not well suited for high speed.
  • Blades get dull, fast.
  • Slit edge quality is usually the worst.
  • Razor handling safety is a concern.
Click here for more info on our slitter systems

Written By: Jeffrey Damour, Sales Manager, Converter Accessory Corporation, Wind Gap, PA, Phone - 800-433-2413

**DISCLAIMER - A great deal of time has been invested in the development of our weekly tech tips. To the best of our knowledge, they are accurate. It is up to the user to verify all results.

THE AUTHOR ASSUMES NO LIABILITY CONNECTED WITH THE USE OF THIS INFORMATION OR THE RESULTS OBTAINED FROM IT.



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