Food Processing Industry

Whether you grind it, flake it, form it, cool it, or spread it around, PRG can help your food processing plant create better products while saving time and resources.

PRG is a roll grinding service not only able to meet the tight tolerances your products require, but also understands your working environment. For over 45 years, North America’s top food producers have relied on Precision Roll Grinders for error-free service, emergency assistance and maintenance – all on your time schedule.

PRG services virtually all roll types, including:

  • Flaking mill rolls – Corn, soy bean and rice
  • Forming rolls – Snack foods and candy
  • Cooling rolls – Snack foods and caramel
  • Grinding rolls – Coffee, chocolate and wheat
  • Mill rolls – chocolate
  • Press rolls - vegetable oils


In-Place (Block Grinding) vs. True Roll Grinding

PRG is a world leader in its ability to produce precise, round rolls. For all food processing industries, true roll grinding is better than in-place roll grinding. In-place (block) grinding is done on the processing equipment and in the machine bearings, which does not produce rolls that meet specification. If something is off on one side or anywhere on the roll, it can’t possibly attain proper shape, roundness and TIR. With PRG, all roll grinding is done at our facilities on the most modern and accurate grinders in the world. All work is done with a proven process that’s guided by computer data. Bearings and housings are removed to guarantee a perfectly round roll in a temperature-controlled facility. In addition, all rolls are measured using a 24-point SpecCheck™. PRG never blindly assumes bearings are working properly and that the journals are without issues such as chatter or lack of roundness.


Results Beyond OEM Specifications

  • Increased run time of rolls
  • Removal of roll corrugations and defects
  • Control surface finish to minimize start up time
  • Reduced bearing failures
  • Energy savings
  • Complete hardness mapping of roll face available
  • Reestablished end relief for proper operation
  • Uniform surface finish using grinding wheel, not blasted
  • Rolls are installed in “ready to run” condition
  • Achieve tolerances of ±20 millionths of an inch


Precision roll grinding and service allows for maintenance to the internal cooling mechanisms, housing and bearings, which provide the following benefits:

  • Uniform roll cooling
  • Increased run time of rolls
  • Increased oil extraction yields (crush mills)
  • Allows complete inspection of housing and bearings
  • Reduces or eliminates down time for bearing repair
  • Detailed cleaning and painting of housings


PRG’s service begins with a consultation at your facility. If you experience any of the following issues with your Food Processing Facility, give us a call. The consultation is absolutely free.

  • How do I stop ribbons from happening?
  • How do I get uniform flakes in my Flake Mill?
  • How do I reduce hot spots?
  • How do I minimize waste?
  • How do I increase my yield?
  • How do I maximize my oil yield?
  • How do I reduce down time on my crush mills?
  • How do I maximize throughput?


Call today to speak to the experts at Precision Roll Grinding.

How Block Grinding Slashes Product Quality

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