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Gravity Separator

The Light Grain Separator is a tool used to accurately separate agricultural products with small differences in size and weight. It works on the fluidized bed principle by forcing air through the deck, causing the light fraction to move uphill while the heavy fraction floats downhill. Its features enable effective separation of almost any dry product, making it essential in seed production for higher germination rates. The machine offers several advantages such as PLC compatibility, easy adjustment, minimal maintenance costs, high productivity. With its high air flow rate, it works with the best yield rates for both small seeds and pulses.

Tanis Gravity Separator: Superior Performance in Density-Based Separation

High Precision Cleaning for Reliable and Homogeneous Products

In agricultural production and seed processing, one of the most common challenges is the presence of foreign materials or low-quality grains that are similar in size but different in density. These impurities can:

  • Reduce germination rates

  • Increase waste

  • Compromise product reliability

The Tanis Gravity Separator provides high-precision density separation, especially for lightweight, husked, or straw-contaminated seeds. Equipped with advanced aspiration technology, it separates particles of the same size but different weight, ensuring clean, homogeneous, and high-quality output.

Working Principle: Layered Separation with Aspiration Power

  • Air Flow: Products enter the machine and encounter a controlled air curtain.

  • Density Separation: Heavy and solid grains fall downward under gravity, while lighter grains and foreign particles are lifted upward.

  • Multi-Outlet System: Heavy and light fractions are collected separately to complete the separation.

This method effectively removes broken seeds, empty kernels, straw, husks, or other unwanted elements of the same volume but different weight.

Benefits to Product Quality

  • Improved Quality: Removes low-density grains for a homogeneous product

  • Increased Machine Efficiency: Downstream equipment like gravity tables, trieurs, or color sorters operate with less load

  • Reduced Waste: Eliminates foreign materials before further processing

  • Higher Market Value: Cleaner and higher-quality products achieve better sales prices

Applications

  • Grains: Wheat, barley, rye, corn

  • Pulses: Lentils, chickpeas, beans

  • Oilseeds: Sunflower, canola, flaxseed

  • Special Seeds: Sesame, hybrid varieties

Ideal for removing straw, lightweight husks, broken seeds, empty kernels, or spoiled grains.

Technical and Design Features

  • Separation Mechanism: Aspiration + gravity combination

  • Capacity: 3–12 tons/hour (depending on product)

  • Power Consumption: 1.5–2.2 kW (optimized fan motor)

  • Easy Cleaning: Quick-access cleaning cover with integrated dust collection

  • Automation Ready: PLC and sensor-supported control systems

  • Food-Safe Surfaces: All product-contact surfaces are food-grade

  • Quiet Operation: Vibration-free body design

Value to Operations

  • High Separation Precision: Detects micron-level density differences

  • Low Energy Use: Efficient fan design reduces operating costs

  • Fast and Easy Cleaning: Minimizes downtime and ensures continuous production

  • Durable Design: Long-lasting body and high-quality components

  • Flexible Operation: Airflow and fan power adjustable for different product types

Use Cases

  • Initial cleaning and quality sorting in seed processing

  • Removal of lightweight husks and broken seeds in pulse processing

  • Separation of empty kernels in oilseed production

  • Pre-certification quality improvement for hybrid seeds

FAQ – Frequently Asked Questions

  1. Which products are suitable?
    All agricultural products, especially light and husked seeds like wheat, chickpeas, lentils, sesame, sunflower, etc.

  2. Does it only remove straw?
    No. It removes all low-density or defective particles, including broken, hollow, or husked grains.

  3. Does it damage seeds?
    No. Uses gentle air flow instead of mechanical impact.

  4. Is separation adjustable?
    Yes. Fan power, airflow direction, and air curtain are optimized per product.

  5. Can it be integrated with automation?
    Yes. Fully compatible with SCADA and PLC systems with automatic alert and stop functions.

  6. Is cleaning difficult?
    No. Quick-access panels and integrated dust collection make cleaning fast and easy.

Conclusion

The Tanis Gravity Separator is a strategic machine delivering high precision, low energy consumption, and maximum efficiency in density-based separation.

  • Improves product quality with cleaner output

  • Extends the life of downstream machinery

  • Flexible settings for various product types

Whether in seed processing or pulse cleaning lines, the Gravity Separator ensures your product is more homogeneous, valuable, and reliable.