A Letter From Our President. During the current situation with the COVID-19 virus, Precision Roll Grinders remains open for business to meet all of our customers’ roll servicing needs. The health and safety of our employees, as well as our customers and partners, is of primary concern. We are monitoring the COVID-19 situation very closely, taking appropriate health measures, and are confident we can abide by locally imposed policies while continuing to seamlessly support and provide value to our customers’ business operations. If you have any questions about PRG’s accessibility or operations please do not hesitate to contact us.


Join us for our next webinar
“The Case for Precision Grinding of Calender Rolls on Linerboard Machines”

Thu, Jan 21, 2021 - 2:00 PM (EDT)

Do you really need Precision ground calender rolls to make linerboard? After all, it is not fine paper with all those demanding print quality tests. The answer is a resounding YES. Boxes are printed, so print quality is necessary in the form of consistent smoothness and caliper over time, strength is always critical and the board has to run well over the winder and on the corrugator. Precision ground calender rolls are critical in meeting all these demands. And they should meet these demands for longer periods of time between changes when ground correctly. It can all add up to significant ROI on your calender roll service when done right. Join us for our upcoming webinar on what you should be looking for in your linerboard machine calender roll grinding and service provider. The webinar is free but fills up fast, so please register today. We look forward to speaking with you.

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Future Webinars


Increasing Coated Board Machine Yield & Quality with Precision Calender Rolls

Thu, Feb 4, 2021 - 2:00 PM (EDT)

Paper fiber is costly. Coated Board producers need to be able to maximize profitability by producing outstanding sheet quality while minimizing fiber usage. Calender rolls can play a critical role in allowing this to happen. Best in class smoothness and caliper control without having to increase sheet density can be achieved with Precision calender roll grinding and servicing. Please join us for our upcoming webinar outlining real-world case studies and what you should expect from your Coated Board machine roll service provider. The webinar is free but can fill up fast, so please register today. We look forward to talking with you.
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Precision Rubber Calendering - The Case for Huge Raw Material Savings

Thu, Feb 18, 2021 - 2:00 PM (EDT)

Whether you are producing tires, roofing or any other rubber product, the condition of your calender's rolls is critical to your profitability. Have you experienced web thickness variation through the calender? Is it causing you to use more raw material than necessary to meet minimum requirements? Precision ground rubber calender rolls not only run longer they provide a world-class quality web profile that can drive huge savings in raw material reduction. Join us during our upcoming webinar to review real-world case studies and what you should be expecting from your roll grinding and servicing provider. The webinar is free but can fill up fast, so please register today. We look forward to talking with you.
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Roll Grinding Application Engineering - Proof of Precision Delivering Profitability

Thu, Mar 4, 2021 - 2:00 PM (EDT)

Roll grinding and servicing for my machine is just a necessary maintenance cost, right? NO. Precision roll grinding and servicing should be delivering considerable return on investment to your process. Your roll grinding and servicing provider should be proving this on a routine basis for you through best-in-class application engineering that is custom-tailored to your machine and process. Data driven, statistically validated studies that result in repeatable results should be your expectation of a roll grinding vendor. Please join us for our upcoming webinar outlining how the application engineering process from design of experiment, data analysis and predictive analytics drives huge economic returns. The webinar is free but can fill up fast, so please register today. We look forward to talking with you.
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Past Webinars


Paper Machine Calenders - Precision Grinding for Optimum Performance

Thu, Jan 7, 2021 - 2:00 PM (EDT)

Roundness specifications for paper machine calender rolls should be 0.0002" or better. However, many paper machines are running calenders with rolls that are being ground to tolerances 4 or 5 times this specification. Usually it is because there is a history of producing acceptable product at these tolerances. However, are the calender stack rolls being changes 2 or 3 times more often than they should? Are there 'mystery breaks' at the dry end of the machine? Are strength test more variable than you would expect? Join us for a quick webinar outlining how proper precision grinding of calender rolls results in significant returns well beyond any additional associated costs. 
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Your Roll Grinding And Service Provider Should Be A Trusted Advisor

Thu, Nov 5, 2020 - 2:00 PM (EDT)

Your roll grinding and service provider should not simply be an outside maintenance provider that you have to manage. The demands of your manufacturing operations require you to handle personnel, scheduling, production optimization, quality issues, customers and on and on... It makes it difficult to be an expert in roll grinding and servicing when you have everything else to deal with. Well, you shouldn't have to be a roll expert. Your roll grinding and services provider should be a trusted advisor that is consistently providing you with helpful direction on how they are bringing you real economic value. And proving it through proper analysis! Join us for a quick webinar on what you should expect from your roll grinding and servicing. 
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Real Economic Benefits Of Precision Roll Grinding And Services

Thu, Oct 8, 2020 - 2:00 PM (EDT)

Manufacturers that require routine roll grinding and services usually consider it a maintenance cost to be managed closely. When done well, precision roll grinding and servicing is an investment that returns real economic benefit. Extended roll life defers the time and cost of removing rolls, improved product quality results in savings through less waste and precision roundness and shape can drive material savings and machine operating efficiencies. Your roll grinding and services provider should be a trusted partner and advisor that brings a measurable return to your operation. 
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Cereal And Food Production

Thu, Sept 24, 2020 - 2:00 PM (EDT)

Cereal and food flaking operations demand precision equipment. Your precision equipment needs precision roll grinding and services to optimize production and quality. Join us for a conversation about how precision roll grinding and services can not only help your cereal or food line produce as efficiently as it was designed to, but improve to levels above and beyond expectations. 
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Chrome Roll Applications

Thu, Sept 3, 2020 - 2:00 PM (EDT)

Whether you have a coating, laminating or specialty operation that requires the characteristics of chrome plated rolls, the precision requirements of how these rolls should be ground, polished and serviced is critical for optimum operational efficiencies. Please join us for a brief review of what you should expect from your roll grinding and service provider on your chrome rolls. We will also explore surface treatment options beyond chrome that may provide more efficiency than you currently get with chromed surfaces. 
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Paper Machine Press Rolls

Thu, Aug 20, 2020 - 2:00 PM (EDT)

Your paper machine press section is precision machinery that needs precision roll grinding and servicing. Responsible for critical water removal, sheet strength development and sheet surface properties, the press section must run with precision and consistency. Press section rolls must function at a high level for this to happen and you should expect precision grinding, rebuilding and servicing from your roll services partner.
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Tissue and Towel Machines

Thu, Aug 6, 2020 - 2:00 PM (EDT)

Tissue and towel machines have recently had to run at unprecedented efficiencies and production rates. Precision roll grinding and servicing is critical for your tissue and towel machines to run at their best. From ensuring the sheet contacts the Yankee dryer properly through having the best surface on your rolls to combat build-up and stickies, precision roll grinding and servicing matters.
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Thu, Jul 9, 2020 - 2:00 PM (EDT)

Today’s specialty coaters and laminators are always looking for new ways to run their operations more efficiently and smarter. They need to minimize material waste. And keep their lines up and running for as long as possible. This is an industry where waste reduction relies heavily on limiting/eliminating variation — like machine direction variations (sometimes called “corrugated”) and barring — through the coater or laminator, and the effects that doing so has downstream. Rolls that are not perfectly smooth — with microscopic peaks and valleys — will require the use of more production material. They’ll also create inconsistent product.

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Rubber industry

Thu, Jun 4, 2020 - 2:00 PM (EDT)

Now, more than ever before, material savings is critical for the rubber industry. Current market uncertainties are forcing rubber and tire manufacturers to operate at efficiencies that are unprecedented. Join our industry experts to discover how precision calender roll grinding and services leads to improved material savings and operational efficiencies that typical block grinding cannot provide. The economics are exciting and will make the difference in changing how you think about rubber manufacturing roll grinding and servicing.

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Non-wovens industry

Thu, May 21, 2020

With products related to Covid-19 protection — such as facemasks, medical gowns and disinfectant wipes — seeing unprecedented demand, non-wovens manufacturers around the globe are producing at unprecedented levels. In this webinar, we’ll look at how critical long-lasting, reliable rolls are to your line. “Maximizing your Non-Wovens Production Line” will demonstrate how precision ground and serviced rolls enable you to create consistent, high-quality product; run at higher speeds; and run longer.

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Paper machines

Thu, May 7, 2020

With a huge spike in demand for some consumer paper goods due to the Covid-19 outbreak and weakening demand for others, it’s an extremely challenging time right now for the paper industry. Producers are being asked to run more efficiently than ever — in some cases to produce more than ever before; in others, to control production costs tighter than ever before. What can you and your company do to keep up with these unprecedented changes?

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