Paper Machine Winder Slitting

SKU: C-681Duration: 26 Minutes Certificate Included

Pay-per-view (PPV) format perfect for individual users.

Get immediate access to this interactive eLearning course online. Must be used within 30 days, expires 48 hours after launch.

Great for in-person classroom training or as an alternative to DVD.

Includes printable documents and Convergence Video Player for Windows systems. Content expires after 1 year.

Ideal for corporate licensing and volume users who also need administrative tracking and reporting on training.

Get this interactive eLearning course into your LMS or learn how you can leverage our LMS to deliver training to your workforce.

Need multiple courses or have lots of users? Just let us know a little more about what you need and we’ll get you some great volume pricing.

 Need help deciding? Compare delivery formats.

Course Details

Specs

Training Time: 26 minutes

Compatibility: Desktop, Tablet, Phone

Based on: Industry Standards and Best Practices

Languages: English

The purpose of a winder is to convert the large diameter, machine-width parent reels of paper or board produced on a paper or board machine into finished roll sets ready for converting or shipping. Winder slitters are used to cut parent reels into various roll widths and trim off the edges of the sheet in order to meet customer requirements. This module will describe common slitting methods and recognize safety guidelines applicable to winder slitters and slitter sections.

Learning Objectives

At the end of this module, you will be able to:

  • Explain the purpose of the winder slitting process
  • Identify and describe hazards and safety guidelines applicable to winder slitters and slitter sections
  • Describe common slitting methods and identify the method most often used during winder slitting
  • Describe the advantage of individually driven bottom slitters over a driven bottom slitter carrier roll
  • Describe slitter setup parameters
  • Describe automatic slitter positioning systems
  • Describe slitter variables which influence slit quality

Key Questions

The following key questions are answered in this module:

Why are bottom slitters driven slightly faster than the sheet?
The overspeed prevents buckling and bunching up of the sheet at the entrance to the slitters.

There are several different slitting methods - water jet, razor, score/crush, and shear. Which is the most common?
Shear slitting is the most common method used on paper and board machine winders because it gives high quality cuts on a wide range of grades at relatively high speeds.

Why is each bottom slitter driven instead of mounting all of the bottom slitters on a driven carrier roll?
Because the carrier roll diameter must increase as the winder speed and machine width increase, in order to control vibrations, individual motor slitters have become more popular.

They are often referred to as ""knives,"" but only the top slitters look sharp. How do most slitters cut the sheet?
On most winders, the top slitters are sharp circular blades and the bottom slitters are bands. The top blade slightly overlaps the bottom band and is loaded from the side to cut the sheet using a shearing action, like scissors.

When roll sizes change, how are the slitters repositioned?
Slitters can be repositioned manually or automatically. Manual positioning exposes workers to hazards and takes longer, so is more appropriate when slit widths don't change very often.

Sample Video Transcript

Below is a transcript of the video sample provided for this module:

The slitter section of a winder typically includes multiple sheet guiding and support rolls, the slitters themselves, the spreader rolls before and after the slitters. The slitters cut the sheet into the desired roll widths, and also trim off the front and back edges. Depending on the grade, the number of slitters can vary from three or four up to 20 or more. Slitting is typically accomplished by multiple pairs of rotating knives mounted on shafts or rails. The cuts or slits are made at the points where the top and bottom slitter knives make contact. On paper and board machine winders, the top slitters are typically circular blades and the bottom slitters are usually bands.

Customer Q&A

Ask a Question

Sorry, we're missing some information

I would like to have several employees take multiple courses. How can I set that up?

We're in the process of making bulk course and multiple user purchases easier. But for now, you can order multiple courses and contact us with details on who you'd like to assign courses to. We can set up each user's training plan and make sure everyone gets the eLearning assignments they need.

Can I get a free full-length preview of a course to see what this course covers?

While we do our best to offer details on course contents, we don't normally offer full-length previews. But please contact us with more details for a better understanding of what your organizaton needs and how we can help.

Do I get a certificate when I complete a course?

Yes. All of our courses allow you to print a completion certficate upon successfully passing the integrated test at the end of each eLearning course.

How do I log in to take a course that I have already paid for?

You'll receive an email with login details moments after you purchase your pay-per-view (PPV) course. Just click the login link and enter the user name and password provieded.

Do you have courses in different languages?

Yes. While all of our courses are originally produced in English, we develop many courses in a growing number of languages, including Chinese, Dutch, German, Italian, Japanese, Korean, Polish, Portuguese, Russian, Spanish, Tamil, and Thai. Availabl languages are normally displayed in the Course Details section on each course page.
Added to Cart! Click here to view your cart.