Washing and Dewatering Line Product Introduction
The Industrial Leafy Vegetable Washing and Dewatering Line provides an integrated solution for washing fresh vegetables and removing excess surface water before subsequent cutting, freezing, drying, or packaging.Fresh vegetables first enter the bubble washing section, where water circulation and air agitation help loosen soil and surface impurities. The washed material is then continuously transferred through the processing line for additional cleaning and rinsing.
After washing, a vibrating dewatering section removes part of the free water carried by the vegetables. The product then passes through an air drying section for further surface moisture removal before downstream processing.According to the reference configuration, the complete line can incorporate a bubble washing machine, hoisting conveyor, hair roller cleaning machine, vibrating machine, and air drying machine, with a reference total output of 500–1000 kg/h. The configuration and dimensions can be customized according to the product and processing requirements.


Leafy Vegetable Washing Process
1. Bubble Washing
Fresh leafy vegetables are introduced into the washing tank.
Air bubbles create water movement around the vegetables, helping loosen soil, sediment, and other surface impurities while reducing the need for aggressive mechanical handling.
2. Continuous Conveying
After the first washing stage, the product is transferred automatically to the next processing section by conveyor.
Continuous conveying helps connect the individual machines into an integrated processing line.
3. Secondary Cleaning
The reference configuration includes a hair roller cleaning machine as a secondary cleaning stage.
The exact cleaning module should be selected according to the vegetable being processed. Delicate leafy vegetables and firmer vegetables may require different contact intensity and equipment arrangements.
4. Vibrating Dewatering
After washing, vegetables carry a significant amount of free surface water.
The vibrating section helps drain and separate part of this water before the product enters the air drying stage.
5. Air Drying
Multiple fans direct airflow across the washed vegetables to further reduce surface moisture.
This stage is intended for surface water removal after washing. It should not be confused with thermal dehydration used to manufacture dried vegetables.
Main Equipment
Bubble Washing Machine
The bubble washing machine provides the first cleaning stage of the production line.The reference equipment combines water movement with bubble agitation and can also incorporate spray rinsing. The manufacturer describes a recirculation and filtration arrangement for secondary cleaning and water reuse.
Hoisting Conveyor
The conveyor transfers washed vegetables between processing stages and maintains continuous product flow.
Hair Roller Cleaning Machine
This unit provides an additional cleaning stage after the initial bubble washing process.The suitability and roller configuration should be selected according to the raw material because leafy vegetables differ considerably in structure and mechanical sensitivity.
Vibrating Dewatering Machine
The vibrating machine separates free surface water from vegetables after washing.It also helps prepare the product for the subsequent air drying stage.
Air Drying Machine
The air drying section uses multiple fans to move air across the washed product and further remove surface moisture.This is particularly useful before packaging or other downstream processing where excessive carried water is undesirable.
Technical Specifications
| Item | Reference Specification |
|---|---|
| Product Name | Leafy Vegetable Washing and Dewatering Line |
| Reference Capacity | 500–1000 kg/h |
| Bubble Washer Power | 3.75 kW |
| Bubble Washer Size | 4000 × 1200 × 1300 mm |
| Hoisting Conveyor Power | 0.75 kW |
| Hoisting Conveyor Size | 2000 × 1000 × 1900 mm |
| Hair Roller Cleaner Power | 2.0 kW |
| Hair Roller Cleaner Size | 2000 × 1000 × 1300 mm |
| Vibrating Machine Power | 1.5 kW |
| Vibrating Machine Size | 1500 × 1000 × 1300 mm |
| Air Dryer Power | 15 kW |
| Air Dryer Size | 4000 × 1200 × 1400 mm |
| Reference Power Supply | 380 V / 50 Hz |
| Main Construction | Stainless steel |
| Processing Method | Continuous |
| Final Stage | Surface water removal |
| Configuration | Customizable |


Key Features
- Integrated Washing and Dewatering
The production line combines conveying, bubble washing, secondary cleaning, vibrating dewatering, and air drying instead of handling each operation separately. - Continuous Processing
Conveyors connect the processing sections, allowing vegetables to move continuously through washing and surface water removal. - Gentle Bubble Washing
Water and air agitation provide a washing method suitable for removing loose surface contamination while limiting excessive mechanical handling of fresh produce. - Multi-Stage Cleaning
Bubble washing, spray rinsing, and an optional secondary cleaning section can be combined according to the raw material and required process. - Two-Stage Surface Water Removal
Vibrating dewatering first removes free water, followed by fan-assisted air drying for further surface moisture reduction. - Adjustable Operation
The reference manufacturer states that conveyor speed, washing time, and dewatering intensity can be adjusted manually or through a PLC-based configuration depending on the selected system. - Stainless Steel Construction
The reference line uses stainless steel construction and identifies AISI 304 for the machine body. - Customizable Configuration
Machine dimensions, capacity, processing modules, and line arrangement can be adapted to different vegetables and production requirements.
Bubble Washing and Spray Rinsing
Bubble washing uses air introduced into the water to create agitation around the vegetables.This movement helps separate loose dirt and sediment from the product surface. Spray rinsing can then provide an additional washing stage as the vegetables move through the machine.
The reference system also describes circulation filtration and a two-stage spray arrangement for water reuse. For delicate leafy vegetables, the actual airflow, water flow, spray pressure, conveying speed, and mechanical contact should be adjusted according to the product.
Vibrating Dewatering and Air Drying
Dewatering is an important stage between vegetable washing and downstream processing.Fresh vegetables leaving the washing tank can carry water between leaves and across their surfaces. A vibrating screen allows part of this free water to drain away.The vegetables can then enter the air drying section, where forced airflow further reduces remaining surface moisture.
Typical Applications
- Fresh-Cut Vegetable Plant
Continuous washing and surface water removal before cutting and packaging. - Central Kitchen
Preparation of vegetables for large-scale catering and food production. - Vegetable Processing Factory
Integration with cutting, blanching, freezing, drying, or packaging equipment. - Frozen Vegetable Plant
Pre-processing before subsequent thermal treatment and freezing where required. - Salad Processing
Preparation of suitable leafy vegetables for downstream fresh-cut salad operations. Final hygienic controls must be designed for the specific ready-to-eat process.
Advantages of an Integrated Washing Line
Compared with operating individual washing and water-removal machines independently, an integrated line allows material to move continuously between processing stages.This can reduce repeated manual transfer, provide more consistent product flow, and simplify integration with downstream processing equipment.
The modular design also makes it possible to select different cleaning and dewatering sections according to the characteristics of the vegetable.
For example, delicate leafy vegetables may require a gentler process than firm root vegetables. The configuration should therefore be based on the raw material rather than capacity alone.


FAQ
What is a leafy vegetable washing and dewatering line?
It is an integrated processing system used to wash fresh vegetables and remove excess surface water before subsequent processing or packaging.
What is the reference processing capacity?
The reference configuration specifies a total output of 500–1000 kg/h. The manufacturer also states that conventional parameters can be customized according to customer requirements.
What equipment is included?
The published configuration includes a bubble washing machine, hoisting machine, hair roller cleaning machine, vibrating machine, and air drying machine.
What vegetables can be processed?
The reference page specifically lists lettuce, red cabbage, cabbage, kale, spinach, and celery.
Does the air drying machine dehydrate the vegetables?
Not in the same sense as a thermal vegetable dryer. Its primary purpose in this line is to remove surface moisture remaining after washing.
Can the production line be customized?
Yes. The reference manufacturer states that the published parameters are conventional specifications and can be customized according to customer requirements.
Can cutting equipment be added?
Yes. The reference process describes cutting and other downstream operations after washing and water removal, depending on the customer’s requirements.
Can the line connect to freezing or packaging equipment?
Yes. The reference page identifies cutting, drying, freezing, and packaging as possible subsequent processes. The exact configuration should be determined according to the final product.
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