Grain and Seed Packaging Machine Selection Guide

Rice, cereal grains and many agricultural seeds are free-flowing products that can be weighed and discharged into a vertical form fill seal machine. The complete line must match bulk density, piece size, dust, target weight and the final bag—not simply the product name.

Illustrative packaging example

Published HYS Configuration Facts

• Published VFFS models: 320, 420 and 520
• Published speed range: 25–55 bags/min
• Published bag range: L 20–320 mm, W 20–250 mm across the three models
• The published 0.5–50 g dose range applies to all three VFFS models

Final model, feeder, accuracy and output are confirmed from product and package samples.

Custom functions: Nitrogen flushing, dust extraction, metal detection and checkweighing require a customized machine or line configuration.

Recommended Packaging Route

• A linear or multihead weigher is commonly evaluated for free-flowing whole grains and seeds.
• VFFS forms bags from rollstock and can support pillow or selected gusseted formats.
• A premade pouch machine may be preferred when zipper or supplied stand-up bags are required.
• Very fine seed, dusty product or wide weight ranges require product-specific dosing tests.

Accuracy, Dust and Product Flow

• Bulk density and piece-size variation affect each weighing cycle and achievable accuracy.
• Dust extraction or sealing-zone protection may be required for dusty products.
• Hopper angles, vibration and contact surfaces should prevent bridging and residual product.
• Fragile or high-value seed may require gentler transfer and reduced drop height.

Specification Checklist

• Product sample, bulk density, particle range and target fill weights.
• Bag dimensions, film structure, seal style and coding requirements.
• Target bags per minute and upstream/downstream handling.
• Cleaning, food-contact and site electrical requirements.

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