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Top view of our 80″ x 360″ Craven Roll Grinder.

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Front view of the 80″ x 360″ grinder.

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Precision Grinding & Dynamic Balancing

Precision Grinding

Fertilla provides comprehensive roll grinding services for a variety of industries. Our precision roll grinding experience provides our customers with the assurance that tolerances will be met and well documented.

At Fertilla, precision tolerances are not a problem! We can hold precision tolerances down to .000030 TIR and .000050 straightness on certain applications. We routinely hold .0002 T.I.R. and straightness tolerances on paper industry calendar rolls. Most rolls do not require tight precision tolerances; however, when they do, Fertilla is your one stop shop for precision roll grinding.

Standard Roll Grinding Tolerances:
  • TIR: .001
  • Straightness: .001
  • Station Deviation: .001
  • Station-to-Station Dev.: .001
  • Concentricity: .001
  • Surface Finish: 16 – 32 Ra

*Precision tolerances of .0002 or less are also available.

Materials Ground
  • 52100 Hardened Steel
  • Brass
  • Chilled Cast Iron
  • Ceramic, Chrome
  • D2 Hardened Steel
  • Stainless Steel
  • Steel
  • Tungsten
  • Carbide
  • Rubber

Click Here to see a sample report

Contact Us for more information regarding our Precision Grinding services.

Roll Balancing
Proper roll balancing optimizes performance.

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Dynamic Balancing

Balancing can make a world of difference – and Fertilla is equipped to dynamically balance a wide range of rolls and rotation equipment in the industries we serve. Our balancing capacity is 84” OD x 400” long and carry up to an 80,000 lb. load. Our variety of set-ups allow for balancing on existing shaft surfaces or use mounted bearings on the shaft for support. Also, our optical whip indicator allows us to correct whip imbalance when necessary on high speed rolls. Our expert technicians will dynamically balance your rollers to the specified balance class. Correct balancing optimizes machine performance and roller life by minimizing vibration.

Click Here to view a sample report

Contact Us for more information regarding our Dynamic Balancing services.