Prunes are a popular snack food, known for their sweet and sour taste and rich nutrition. From raw material plum cleaning to drying and packaging, every step requires efficient and reliable prunes processing machine.
Dried Plum Processing Machine Working Flow：
- Cleaning: Freshly picked plum are often covered in dust, impurities, and possible pesticide residue. Cleaning removes these impurities and ensures hygienic conditions for subsequent processing.
- Pitting: Plum have large pits, so pitting not only improves the eating experience but also ensures more even heating during the drying process. (Some producers choose not to remove the pits.)
- Drying: After cleaning and pitting, the plum enter the drying process, using hot air or other drying methods to reduce their moisture content to between 25-32%, the ideal moisture range for dried plum. This ensures a firm texture and flavor, while also extending storage time and preventing mold.
Main Prunes Processing Machine:
The washing machine employs a water bath circulation system with bubble agitation to efficiently remove dirt and debris from fruit surfaces. Equipped with multi-layer spray nozzles for thorough cleaning, it features adjustable water flow and bubble intensity to accommodate plums at various stages of ripeness.
2. Pitting machine:
Removes pits while preserving fruit flesh integrity. This highly automated machine processes hundreds of kilograms of plums per hour with high pitting accuracy, minimizing fruit waste.
3. Plum drying machine:
The dryer is the key equipment determining the texture and quality of prunes. Common types include hot air circulation dryers, continuous mesh belt dryers, and tunnel dryers. The dryer’s temperature and humidity are controllable, ensuring uniform drying. It stabilizes the moisture content of prunes between 25-32%, maintaining softness while extending shelf life.
Optional Auxiliary Equipment:
Based on customer production requirements and market positioning, the prune processing machine can be expanded with the following equipment:
1. Sorting machine:
Sorts plum by size or weight before washing or drying, improving uniformity during pitting and drying.
2. Slicer:
Some markets prefer prune slices over whole prunes. The slicer rapidly processes fruit into slices, expanding product variety.
3. Sugar-coating or pre-treatment equipment:
Prior to drying, some customers sugar-coat or blanch plum to enhance flavor or preserve flesh color.
Advantages of Prune Processing Machine:
High automation: Significantly reduces labor requirements while boosting production capacity and stability.
Consistent product quality: Fully controllable process from washing to drying ensures uniform color and tender texture in prunes.
High adaptability: Equipment can be flexibly configured for facilities of varying scales, accommodating operations from small workshops to large-scale production.
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