If you’re using calender rolls in your paper manufacturing process, you’ve likely faced barring – diminishing the quality of your paper and killing your profitability.

Barring is a roll surface problem: peaks and valleys in your roll that prevent it from turning smoothly. It’s the enemy of many paper manufacturers, as it causes inconsistencies in paper quality. You may notice unevenness in thicknesses, paper strength or glossiness.

If your paper displays any of these inconsistencies, it’s not meeting your standards or those of your clients. It could even cost you business.

Since barring impacts both your profitability and your efficiency, it’s an issue that needs to be monitored and addressed on a regular basis. To preserve the quality of your rolls, you must turn to roll grinding experts to properly eliminate barring.

How Roll Grinding Eliminates Barring

Barring is an issue that requires more than basic grinding methods, so it shouldn’t be attempted by anyone but an expert roll grinder.

For example, inexperienced roll grinders may try to repair the flaws in the roll surface without removing the bearing and housing. Using this method, it’s impossible to achieve the perfectly concentric rolls that paper manufacturers require to uphold quality standards.

There is a three-step process that roll grinding experts use to eliminate barring.

1. The roll bearing and housing is removed.

2. The bearing seats and rolls faces are ground round and concentrically to your specifications.

3. The roll is reassembled and replaced which provides an additional benefit - bearings and housings are inspected prior to installation.

Because this is a delicate process, it necessitates the precision of an experienced roll grinding provider. When expert roll grinders repair your rolls and eliminate barring, you achieve the tight tolerances needed to manufacture high-quality paper.

The Benefits Of Kissing Barring Goodbye

There are a number of benefits to being vigilant when it comes to eliminating barring.

• Reduce waste. One of the biggest impacts that barring has on your profitability is the waste it causes. When your paper is manufactured with imperfections, it’s not fit to sell. Now, you’ve wasted not only the materials to create the paper, but also the energy required to run your machinery and the time spent manufacturing flawed paper.  If you do sell it and your customer is dissatsified, the impact is far greater in lost orders.
• Decrease unexpected downtime. Downtime is a struggle faced by many paper manufacturers. If barring occurs, you  will need to change your rolls more frequently, costing you roll life, productivity and increased exposure to quality complaints if the rolls are removed a little too late.
• Boost production efficiency. When you eliminate barring, you don’t just decrease waste and downtime. You also increase efficiency levels for your entire operation. You’re able to manufacture paper that meets your specifications and keeps your clients coming back for more business.