Perzuza - Peruza Roller Grader

• Grading of small pelagic fish such as sardines, sprats, and anchovies by size.
• Sorting of various small, elongated food products where gentle handling is required.
• Pre-sorting of produce in processing lines to ensure uniform product flow.
• Separation of products into multiple size categories for different end uses.

Typical capacity

For this class of equipment, throughput commonly ranges from 3 to 10 tonnes per hour, depending on product type and desired grade accuracy.

Power supply

Units of this type typically operate on a 3-phase industrial electrical supply, commonly 400V, 50Hz, with power consumption varying by motor size.

Number of grades

Roller graders are commonly configured to produce between 2 and 5 grades, plus an oversize/undersize reject.

Grading mechanism

Utilises a series of contra-rotating rollers with progressively increasing gaps to sort products by diameter or thickness.

Construction material

Typically constructed from food-grade stainless steel (e.g., 304 or 316) for hygiene and corrosion resistance in wet environments.

Suitable product size range

Designed for products generally in the 10mm to 100mm length range, with a weight range commonly from 5g to 100g.

• What maintenance is typically required for a roller grader?

  Routine maintenance typically involves cleaning, inspection of rollers and belts for wear, and lubrication of bearings. Electrical components should be checked periodically.

• Can this type of grader handle products other than fish?

• How is the grading size adjusted?

• What is the typical footprint of a roller grader?

• Are spare parts readily available for roller graders?

Sorting and grading equipment is valued for improving product consistency and processing efficiency. Buyers typically seek machines in good mechanical condition with minimal wear on critical components like belts, motors and calibration systems. Common strengths include reliable performance when properly maintained, cost savings versus new equipment, and compatibility with existing production lines. Industry sentiment favours models from established manufacturers known for durability. Buyers should inspect electrical systems thoroughly and verify spare parts availability before purchasing used units.

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