​Specialized Wheat Seed Air Screen Cleaner

Specialized Wheat Seed Air Screen Cleaner

Processing wheat seed requires specialized cleaning solutions to address its specific characteristics and the common impurities found in its harvest. The Wheat Seed Air Screen Cleaner from Shijiazhuang Xinlu Technology Co., Ltd. is meticulously designed to meet these precise needs, focusing on high throughput, gentle handling to preserve germination rates, and the precise removal of impurities unique to wheat.

Wheat seed, intended for sowing, must be handled with care to avoid damage to the embryo. Our cleaner is engineered with this priority in mind. The oscillating motion of the screen box is carefully calibrated to ensure the wheat seeds are conveyed efficiently without being thrown or impacted violently, which could cause cracking or breakage. Preserving the physical integrity of the seed is paramount for maintaining its germination potential.

The spectrum of impurities in raw wheat can include light chaff and straw, small or broken seeds, weed seeds of various sizes, small stones, and soil particles. The cleaning process in our specialized machine is tailored to address each of these contaminants effectively. The aspiration system is finely tuned to the average density and aerodynamic properties of wheat seeds. The adjustable fan speed allows operators to set an exact air velocity that lifts and removes light materials like chaff and straw without carrying away plump, high-density wheat seeds. This precise control is critical for maximizing yield and minimizing product loss.

The selection of screens is the most crucial aspect of a wheat seed cleaner. We provide guidance on the optimal screen sizes for various wheat varieties. Typically, a two-screen configuration is employed. The top screen is selected with round perforations that are slightly larger than the largest wheat kernels in the batch. This allows the wheat and smaller impurities to pass through while scalping off larger contaminants such as unthreshed heads, large weeds, or straw pieces.

The bottom screen is chosen with oblong (slotted) perforations. The width of these slots is critical; it must be narrow enough to retain the plump wheat kernels but wide enough to allow smaller impurities to fall through. These impurities include small weed seeds (like ryegrass), sand, and small broken wheat kernels. The oscillating action of the screens stratifies the material, allowing the thinner, smaller particles to orient themselves and fall through the slots, while the wider, rounder wheat seeds continue their journey to the discharge spout.

A key challenge in wheat cleaning is the presence of weed seeds that are very similar in size and shape to wheat, such as oat wild oats or cockle. While the air screen cleaner is highly effective for a majority of impurities, it may be paired with indented cylinder separators or gravity tables for a more refined separation of these "difficult-to-remove" contaminants. However, our Air Screen Cleaner serves as the essential primary cleaning step, removing the bulk of impurities and preparing the seed for any subsequent precision sorting.

Durability and hygiene are also key considerations. The machine is built to handle the abrasive nature of wheat and associated dust. Easy-access panels and quick-change screen frames minimize downtime during screen changes for different wheat lots or varieties. Our Wheat Seed Air Screen Cleaner is a robust, reliable, and efficient foundation for any wheat seed processing line, ensuring the delivery of clean, high-quality seed that is free from most impurities and ready for bagging or further processing.