Carboxylated Nitrile (XNBR) Rollers

Standard nitrile rollers wear out fast in high-abrasion converting, printing, and steel processing lines, and every unplanned changeover costs production time. Carboxylated nitrile rollers solve that problem. Rol-Tec builds and re-covers XNBR rollers for manufacturers who need a covering that holds up under constant friction, load, and heat without sacrificing dimensional accuracy.

Carboxylated Nitrile is created by introducing carboxylated acid groups to the nitrile polymer backbone. That change in chemistry sharply improves abrasion resistance, tear resistance, and tensile strength over standard Buna-Nitrile. As with any elastomer, gains in one area come with tradeoffs elsewhere. XNBR gives up some compression set performance, resiliency, and ozone resistance in exchange for a covering that can take a beating and keep running.

Common names for this compound include XNBR and CN.

Rol-Tec's XNBR roller re-covering services let you extend the life of existing cores instead of buying new rollers outright. Our team strips the worn covering, inspects and repairs the core and shaft, then applies new carboxylated nitrile built to your specified hardness, diameter, and tolerance. Every re-covered roller goes through precision grinding before it ships, so it holds true dimensional accuracy once it's back in your production line.

If your current rollers are showing surface cracking, glazing, or premature wear, our roller re-covering process is typically faster and less costly than sourcing a full replacement roller.

Industries That Rely on XNBR Rollers

Manufacturers across several industries turn to carboxylated nitrile rollers to keep production moving longer between changeovers:

• Paper, plastic, and film converting
• Printing
• Material handling
• Textile manufacturing
• Automotive
• Steel processing and metallurgy