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Precision Size Grader

The Precision Size Grader accurately size grades damage-sensitive food products by diameter. Using a combination of precision-machined stainless steel rollers and a unique pinch eliminating drive arrangement, the Precision Size Grader offers consistent, uniform separation of target size material.

The size for separation, selected by the customer, is determined by the gap between the rollers—target size product falls through the rollers and exits underneath the machine, while larger size material moves over the top of the rollers.

The Precision Size Grader features exceptional sizing accuracy with on-the-fly adjustability, space-saving compact footprint, and little or no annual maintenance required.

The Precision Size Grader is suitable for sizing a wide variety of delicate vegetables, fruits, and other products. With approximately .2 mm (.008”) of roller gap adjustment per complete rotation of the adjusting handle and its simple but robust design and construction, the Precision Size Grader provides processors the ability to meet their customers’ exacting specifications throughout their process season—year after year.

The Precision Size Grader for potatoes and vegetables The Precision Size Grader Offers Efficient Sizing and Separation The Precision Size Grader Features Exceptional Sizing Accuracy

Features and Benefits

Precision Sizing

  • Stainless steel rollers machined to exacting tolerances
  • Consistent sizing and absolute control

Easy Operation

  • Efficient sizing and separation; no screens to bind or plug
  • On-the-fly adjustment with precise fine-tuning
  • Precision adjustment within thousandths of an inch

Low Maintenance

  • Long-life stainless steel rollers are self-cleaning on most applications
  • Efficient sizing and separation; no screens to bind or plug
  • Sealed corrosion-resistant bearings inside frame require no regular lubrication
  • Easy access to bearings, chain, sprockets and adjusting system—simply remove side covers and plastic liners with four fasteners
  • Very few moving components or wearing parts
  • Requires only a hose washdown
  • Easy access to all components with open sizing area design
  • No bars, slats or bushings to clean inside the machine
  • No screens to change
  • No parts to remove
Key Technology | 150 Avery Street, Walla Walla, WA 99362 USA