Salad Leafy Vegetable Vortex Washing Processing Line is a fully automatic washing and processing line designed for leafy vegetables (such as lettuce, 菠菜, kale, ETC。). The salad production line combines advanced vortex cleaning technology, intelligent control systems and food-grade materials to efficiently remove mud, microorganisms and pesticide residues on the surface of vegetables while maximizing the freshness and nutrition of vegetables. Its modular design can adapt to different production capacity requirements and is widely used in food processing plants, central kitchens and pre-prepared food production companies.
The Salad Leafy Vegetable Vortex Washing Processing Line mainly utilizes the combination of vortex oscillation and air bubble cleaning, as well as high-pressure spraying and dirt separation to achieve efficient and gentle cleaning of leafy vegetables. The specific working process is as follows:
Bubble + vortex agitation The system injects air into the water tank through a turbine pump to form a large number of bubbles and vortex water flow, causing the vegetables to roll and collide in the water. With the impact force of bubble burst and vortex shear force, the attached mud, pesticide residues and surface stains are effectively removed, while avoiding mechanical damage to fragile leaves;
High-pressure spraying On the basis of bubble agitation, the equipment is equipped with upper and lower double-layer high-pressure spray pipes, which are washed by multi-angle powerful water curtains to completely disperse the remaining fine particles and further remove the attachments;
Separation of scum and sediment During the cleaning process, the scum is discharged with the overflow tank on the water surface, and the sediment is regularly discharged through the bottom sewage outlet to ensure the cleanliness and recycling of the cleaning water, saving water and energy;
Sterilization and disinfection (optional) Some systems also integrate UV/O₃ composite disinfection modules, which produce highly oxidizing ·OH· free radicals through the combined action of ozone and ultraviolet light, and perform secondary sterilization on bacteria, viruses and residual organic matter to meet HACCP and FDA Food safety standards such as;
Vibration/centrifugal dehydration
最后, the washed leafy vegetables are dehydrated by a vibration dehydrator or a centrifugal dehydrator to remove surface moisture, ensuring that the optimal moisture content is achieved before entering the packaging stage, extending the shelf life and improving packaging efficiency;
This salad processing plant is widely used in fresh food processing plants, pre-prepared food production lines, ETC。, especially for efficient cleaning of fragile leafy vegetables such as spinach and lettuce.
🌿 Complete Salad Production Line Workflow Overview
Raw Material Feeding➝Air Bubble & Vortex Washing➝Secondary Rinsing➝Vibration Draining➝Centrifugal Dewatering➝Manual Picking & Inspection➝Packaging Preparation
This processing line combines continuous feeding, multi-stage cleaning (vortex + bubble washing, high-pressure rinsing), moisture removal (vibration + centrifugal dewatering), manual quality inspection, and final packaging preparation. Each machine is built of food-grade stainless steel, fully automated or semi-automated, and designed to maximize throughput (up to 1–3 t/h), hygiene, and gentle handling of delicate leaves.
Here is the salad processing line Youtube video working process in our factory for your reference!!
1. Raw Material Feeding Conveyor A stainless-steel belt or mesh-belt conveyor with variable frequency drive delivers raw leafy vegetables evenly into the line, ensuring continuous flow without leaf damage and facilitating integration with upstream reception systems .
2. Air Bubble & Vortex Washing Machine Combining spiral vortex water flow with injected air bubbles, this unit tumbles leaves gently while the bubble collapse provides micro-scrubbing to dislodge dirt and pesticide residues without bruising the product .
3. Secondary Rinsing Tank Equipped with a cascade of high-pressure spray nozzles and independent filter/recirculation tanks, this freshwater rinsing section removes any lingering debris or cleaning agents, and uses inclined bottoms or slope design for rapid sediment discharge .
4. Vibration Draining Machine A high-frequency vibrating deck conveys vegetables over a perforated surface, shaking off bulk water efficiently while preserving leaf integrity; speed and amplitude are adjustable via VFD control .
5. Centrifugal Dewatering Machine A drum-type or basket centrifuge spins washed leaves at adjustable speeds (up to several thousand rpm), using G-forces to strip surface moisture rapidly; PLC or frequency controls set spin time and speed for optimal dryness .
6. Manual Picking & Inspection Conveyor A roller or mesh-belt inspection table with LED lighting and optional trim-removal conveyor lets workers view all sides of the product inline, quickly removing defective leaves or foreign matter to ensure uniform quality .
7. Packaging Preparation Station A multi-operator prep table or modular station feeds cut, washed, and dried leaves into weighing scales or MAP baggers. Features include crate holders, cutting boards, waste funnels, integrated elevators, and interfaces to multi-head weighers and pouch-seal machines.
Each unit is constructed from SUS 304 不锈钢, meets CE/HACCP standards, and supports capacities from 500 kg/h up to 3 t/h. This configuration ensures thorough cleaning, efficient moisture removal, and precise final preparation—ideal for central kitchens, ready-to-eat salad producers, and export-grade processing facilities.
Salad Processing Line Features
High-efficiency vortex cleaning technology The vortex generator generates a strong water vortex to simulate manual kneading action, completely separating impurities in the leaf folds, and the cleaning efficiency is 40% higher than that of traditional equipment;
Multi-stage filtration system Equipped with an automatic suspended matter separation device and a multi-layer filter, it can filter mud, broken leaves and microorganisms in real time to ensure the clean water circulation and reduce water resource waste;
食品级 304 stainless steel material The entire body is made of corrosion-resistant stainless steel, which complies with HACCP and FDA standards and eliminates the risk of secondary pollution;
Intelligent PLC control panel Supports one-click adjustment of parameters (such as cleaning time, water pressure, ozone concentration), and is equipped with a fault self-detection system to reduce the need for manual intervention;
Salad Production Line Advantages
Thorough and gentle cleaning The vortex and bubble combination technology avoids blade damage, with a breakage rate of less than 1%, which is significantly better than traditional drum cleaning;
Energy saving and environmental protection The circulating water system is combined with ozone sterilization, saving 60% of water, and no chemical disinfectant is required, which is in line with the trend of green production;
High compatibility design It can adapt to different leafy vegetable sizes and shapes, and quickly switch processing categories by replacing the filter and adjusting the water flow parameters;
Low maintenance cost The modular structure is easy to disassemble and clean, and key components (such as water pumps and filters) are made of wear-resistant materials, which extend the life by 30%;
Salad Processing Plant Benefits
Improve food safety level Effectively remove 99% of pesticide residues and E. coli, meet strict export standards in Europe, America and Asia, and reduce recall risks;
Extend product shelf life Ozone sterilization and air drying and dehydration technology inhibit microbial reproduction, extending the shelf life of vegetables to 7-10 天;
Enhance brand competitiveness Products with high cleanliness and good appearance can improve customer satisfaction and help seize the high-end fresh food market;
Reduce overall costs Automated processes reduce labor costs by 60%, and through water-saving and power-saving designs, the energy consumption per ton of processing is reduced by 25%;
Authoritative certification Passed ISO 22000, CE certification, and recommended by many food testing agencies around the world;
Customer case After a leading European pre-prepared food company adopted this production line, the product qualification rate increased from 92% 到 98%, and the annual production capacity increased by 2,000 吨;
Measured data Third-party tests show that the total colony count of vegetables after the production line is ≤100 CFU/g, and the degradation rate of pesticide residues exceeds 85%;
After-sales service guarantee Provide global 24-hour technical support, 3-year warranty on key components, and free operation training;
Salad Leafy Vegetable Vortex Washing Processing Line has become a benchmark equipment in the leafy vegetable processing industry with its innovative cleaning technology, intelligent control system and excellent food safety performance. Whether it is to improve production efficiency, ensure product quality, or respond to sustainable development needs, this production line provides companies with a full range of solutions.
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