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The Dual-function Destoner Machine is a high-efficiency grain destoning equipment engineered to separate stones, sand, and other heavy impurities from grains, pulses, and oil seeds. Leveraging the principle of differing specific gravity and suspension speeds between grains and stones, this machine combines wind separation and mechanical vibration to achieve exceptional stone removal results. Ideal for rice mills, coffee bean processing facilities, nut processing plants, seed production units, and pulse cleaning lines, it is designed to be installed after the initial clean-up process—ensuring raw grains are free from large and light impurities before destoning for optimal efficiency. With a focus on low energy consumption and dual-function grading and destoning, this machine is a cost-effective and reliable solution for food processing plants seeking to improve product quality and meet industry standards. Key applications include wheat destoning, rice processing destoning, coffee bean purification, and nut stone separation.
Unlike single-purpose destoners, this equipment offers both grading and destoning capabilities in one unit, eliminating the need for additional machinery and saving production space and costs. It efficiently separates stones while classifying grains by size, enhancing overall processing efficiency.
Equipped with multiple separation decks and a precision air flow control system, the machine achieves an impressive 99.8% stone removal rate—ensuring grains are virtually free from heavy impurities, which is critical for protecting downstream processing equipment and improving end-product quality.
Featuring a reinforced steel frame construction and wear-resistant deck lining, the destoner is built to withstand heavy-duty use in industrial environments. Its compact footprint (3.2×1.6m) allows easy installation even in space-constrained facilities, without compromising performance.
High Efficiency: With a 99.8% stone removal rate and dual-function design, our destoner streamlines processing workflows and reduces waste, delivering higher-quality grains and lower operational costs.
Low Energy Consumption: Operating at just 3-5.5kW (varies by model), it consumes significantly less energy than traditional destoning equipment, contributing to sustainable production and reduced utility bills.
Easy Maintenance: The easy-clean design, integrated dust collection system, and weekly air channel cleaning requirement minimize maintenance time and effort, keeping downtime to a minimum.
Wide Capacity Range: Available in capacities from 2-40 TPH, the machine caters to small-scale workshops and large industrial facilities alike, with models tailored to specific production needs.
Superior Durability: Wear-resistant components, reinforced steel frame, and precision engineering ensure long service life, even in continuous operation—providing a high return on investment.
The machine is effective for particles with a diameter of 2mm or larger, making it suitable for most grains, pulses, coffee beans, nuts, and seeds commonly processed in food facilities.
The standard power requirement is 380V 3-phase, 50/60Hz. We can provide customized power solutions to match your local electrical specifications upon request.
Routine maintenance includes weekly air channel cleaning and monthly bearing checks. The wear-resistant deck lining may need replacement annually depending on usage intensity, ensuring consistent performance.
