The core advantage of the JCSORT Citrus washing, air-drying, waxing and size grading machine lies in its "fine control" of the entire orange processing process. Each link is equipped with exclusive technical design to ensure the quality and appearance of the processed oranges.

1. High-Pressure Spray + Brush Cleaning: 360° Cleaning with a 99% Residue Removal Rate

The equipment's cleaning section utilizes a dual-cleaning design: six high-pressure spray nozzles on the upper section continuously spray food-grade water at a pressure of 0.3 MPa, precisely impacting mud, sand, and stains trapped in the crevices of the oranges' surfaces. Three sets of soft nylon brushes on the lower section rotate at a constant speed along with the conveyor, gently scrubbing the orange peels, avoiding damage while thoroughly removing stubborn residue. Furthermore, a built-in filtration system in the cleaning water tank recirculates and filters impurities, reducing water waste. Third-party testing has shown that this equipment removes 99% of pesticide residue from orange surfaces, fully meeting national food safety standards and addressing the incomplete cleaning issues associated with traditional manual cleaning.

2. Hot Air Circulation Drying: Quickly dries in 30 seconds, leaving no water stains on the surface.

If water is present in the waxing process after washing, the wax layer will not adhere evenly. Air drying naturally will also take too long. JCSORT has incorporated a "hot air circulation drying section" into its equipment. This section uses a constant temperature of 38-42°C (precisely adjustable to avoid heat damage). Multiple sets of angled nozzles create a circular airflow that wraps around the surface of the oranges, quickly removing moisture. The air speed can be adjusted based on the variety (such as mandarin oranges, navel oranges, and citrus). For mandarin oranges with thinner skins, the air speed is set to a low speed (5m/s), while for navel oranges with thicker skins, the air speed is set to a medium-high speed (8m/s). This ensures that the oranges are dried within 30 seconds, leaving no water stains on the surface, laying a good foundation for the subsequent waxing process.

3. Constant Temperature and Quantitative Waxing: Uniform coating locks in freshness, extending shelf life by 15-20 days.

Waxing is a critical step in preserving oranges. JCSORT utilizes a "constant temperature and quantitative wax supply system" to achieve a uniform and controllable wax coating. First, a built-in constant temperature heating device in the wax storage tank maintains the temperature of food-grade fruit wax at 55±2°C, ensuring optimal fluidity. Second, a metered spray nozzle above the conveyor precisely applies 0.8-1.2g of wax per kilogram of oranges, preventing waste or insufficient wax. Finally, two sets of soft sponge rollers below gently apply the wax evenly to the oranges, forming a transparent protective film approximately 5-8μm thick. This protective film not only locks in moisture, reducing water loss during transportation and storage, but also isolates the oranges from air, delaying oxidation and deterioration. This extends the shelf life of oranges from the traditional 10-15 days to 25-35 days, significantly reducing waste.

4. Intelligent Drum Grading: ±2mm Precision Sorting, Adapting to Multiple Size Requirements

Mandarin oranges must be graded according to market demand, distinguishing between different sizes (e.g., 60-65mm, 65-70mm, 70-75mm, etc.). JCSORT utilizes an "intelligent drum grading system" to achieve precise sorting. The grading section is equipped with 4-6 sets of customized drums with different apertures, with aperture tolerances strictly controlled within ±1mm. Infrared sensors installed beneath the drums monitor the number of oranges passing through in real time. Combined with an intelligent control system, the drum speed is automatically adjusted (8-12 rpm) to prevent accumulation or missed oranges. When the drums rotate to the corresponding aperture position, those that meet the specifications automatically fall into the receiving chute, achieving "precise separation of the same size." Field testing has shown that the equipment achieves a grading accuracy of ±2mm, far exceeding the ±8mm standard for manual grading. It can process 3-6 tons of oranges per hour, meeting the production capacity needs of businesses of all sizes.