Paper Machine Suction Rolls and Roll Covers

SKU: C-635Duration: 23 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: 23 minutes

Compatibility: Desktop, Tablet, Phone

Based on: Industry Standards and Best Practices

Languages: English

Though their design and construction are very similar, suction rolls perform several different functions on paper machines, depending on their position. They can be used to remove water from the sheet, transfer the sheet, improve dewatering in a press nip, dewater a felt, stabilize the sheet, or pull steam into the sheet. Roll cover selection should take into account the functions of the roll and the operating conditions.

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

  • Explain the purpose of suction rolls in the forming and press sections of a paper or board machine
  • Identify and describe the function of key components of a suction roll
  • Explain the importance of proper vacuum box and end deckle positioning in suction rolls
  • List the various types of roll cover materials and their typical applications
  • Explain the benefits of grooved and blind-drilled roll covers

The following key questions are answered in this module:

Where are suction rolls typically located on a paper or board machine?
Paper and board machines are typically equipped with multiple suction rolls in the forming and press sections.

What are suction press roll shells constructed from?
Suction roll shells are typically constructed of bronze or stainless steel.

What is the flushing shower in a suction roll used for?
The flushing shower is used when the paper machine is down to clean and flush stock build up out of the vacuum box and the holes in the roll shell.

What are the most common roll cover materials?
Rubber and polyurethane are the two most common roll cover materials. Rubber is very versatile, while polyurethane is tough and wear resistant. These materials can be designed for use in many different applications.

Where are ceramic roll covers used?
Ceramic roll covers are extremely wear resistant and have very good release properties. They are often used on center press rolls.

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

Suction rolls have four major components. One, a roll shell with through drilled holes. Two, one or more suction boxes or vacuum boxes. Three, a head and journal at each end. And four, a roll cover on the shell. Suction roll shells are typically constructed of bronze or stainless steel. Holes are drilled through the shell to supply vacuum to the roll's surface. The hole pattern influences the strength of the shell. The amount of noise generated and the amount of open area available. The suction press roll shell is the primary interface for applying pressure to the sheet in the nip. It is designed to handle high nip loads and withstand repeated cycles of loading and unloading.

Use the additional resources and links below to learn more about this topic:

Customer Q&A

Ask a Question

Sorry, we're missing some information

How do I log in to watch a video that I have already paid for?

Easy! Moments after you purchase your pay-per-view (PPV) course, you'll receive an email with login details. Just click the link and log in with your user name and password and you're on your way!

I would like to have some of my employees take 5 of your driving related courses, how can i set this up?

We're in the process of making bulk purchases and purchases for multiple users easier. But for now, you can order multiple courses and just let us know who you'd like to assign courses to. With an email for each user, we can set up their training plans and make sure everyone gets the eLearning assignments they need.

How can I get your paper-making courses for free?

Well, we can't blame you for asking... And while we're a for-profit company, there are situations with students and certain educational organizations where we can help out with a selection of eLearning. However, our online courses are extremely economical. And our paper industry courses are in very high demand. So, without knowing more about your situation, we think you'll get loads of value from the $39 you'll spend on any of our premium courses.

Do you have eLearning in Portuguese?

Yes, we do! And in addition to primary English narration, we produce many courses in a growing number of languages, including Spanish, Chinese, Dutch, German, Italian, Japanese, Korean, Polish, Russian, Tamil, and Thai.

I'm unemployed, but I really like your eLearning. 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 eLearning. In the future, we'll have badges for you to use in your LinkedIn profiles.
Added to Cart! Click here to view your cart.