In this era where manufacturers pursue ultimate product quality and oil yield, the purity of raw materials directly determines oil grade and corporate profits. As the saying goes, bad seeds spoil oil just as poor food causes illness. Even a single piece of shoulderstone, soil clod or impurity mixed in raw materials can cause press machine wear, reduce oil yield, and severely damage the taste and color of finished edible oil.
Faced with increasingly fierce market competition, how to remove impurities efficiently with minimal loss has become critical for oil processing enterprises to cut costs and boost profits. We are proud to present our cleaning machine. Built to military-grade craftsmanship standards, it guards the very first safety gate for edible oil production.

Product Introduction
Applicable Materials: Peanuts, soybeans, rapeseeds, sunflower seeds, cotton seeds, sesame and other oil-bearing crops, as well as food grains.
Working Principle:Taking advantage of the differences in specific gravity and suspension velocity between oil seeds and shoulder-stones / heavy impurities, the machine accurately separates heavy stones from lighter oil materials through optimized air classification and vibrating sieve surface.
Core Product Advantages
1.Precise Impurity Removal Without Material Damage
The specially designed separating sieve surface (yellow part in main image) works in perfect coordination with the precision air-volume adjustment system (blue fan unit in main image). Its stone-removal efficiency reaches over 99%. It removes not only large stones but also tricky shoulder-stones that share similar size with oil seeds, without damaging oil seed embryos.
2.Closed-loop Air Classification for Eco-friendly Operation
Adopting advanced air-suction structure paired with high-efficiency dust removal system, it prevents dust discharge into workshop surroundings and greatly improves working conditions for operators. The matching vertical bucket elevator (off-white part on the right of main image) enables automatic feeding, significantly cutting labor costs and reducing manual workload.
3.Robust Construction for Stable & Reliable Performance
The main frame is welded from thickened steel for long service life. High-strength stainless steel screens feature great corrosion-resistance and wear resistance. Equipped with high-performance motors, it runs smoothly with low noise, supports 24-hour continuous full-load production and requires very low maintenance cost.
4.Compact Structure & Easy Installation
The whole machine occupies little floor space with well-thought-out layout. Integrated design for feeding, stone removal and discharging allows plug-and-play installation, perfectly fitting oil pressing workshops of all sizes.
Machine Specifications
