Raw material condition
Define fruit or vegetable type, firmness, size range, soil load, leaves, stones and damaged material before choosing washing force or inspection method.
Washing & Sorting
Drum Grading Machine
A drum grading machine separates raw materials by size through rotating drum sections or perforation differences. It helps stabilize downstream cutting, extraction, peeling or packaging performance.
Equipment role
What this equipment does.
Drum grading machine for size grading of fruit and vegetable raw materials before processing.
For Drum Grading Machine RFQ, provide raw material condition, intake and schedule, cleaning objective and inspection and grading. These data are used to confirm the configuration, interfaces and quotation scope.
Typical applications
Where it is used.
- Citrus and apple size grading
- Raw material standardization before extraction
- Sorting fruit for different processing routes
- Lines requiring consistent feed size
Process position
Typical position in the processing line.
The position may vary according to finished product route, plant layout and sanitary design.
Raw material feeding
Control feed rate, inlet height and raw material condition before Drum Grading Machine so the machine receives a stable load without bridging or unnecessary product damage.
Rotary grading
Review this step with product data, line layout and sanitary requirements so Drum Grading Machine can be integrated without creating a bottleneck.
Size separation
Match screen opening, rotor action and waste discharge to the required pulp texture, seed removal and fiber control target.
Multiple outlet discharge
Confirm outlet height, pump or conveyor interface, buffer need and next-machine inlet so the section connects cleanly to the production line.
Transfer to processing section
Confirm outlet height, pump or conveyor interface, buffer need and next-machine inlet so the section connects cleanly to the production line.
Engineering notes
Engineering Notes for Drum Grading Machine Selection
Drum Grading Machine is commonly discussed for citrus and apple size grading, raw material standardization before extraction, sorting fruit for different processing routes, lines requiring consistent feed size. The goal is to make this module work as part of a complete fruit and vegetable processing line, not as an isolated catalogue item.
In an industrial fruit or vegetable plant, front-end handling is not just a conveyor decision. Soil load, floating behavior, raw material firmness, defect level and downstream extraction route determine whether bubble washing, brush contact, spray rinsing, roller inspection or grading should be used. The equipment should keep product flow stable while removing field contamination before crushing, pulping, juicing or filling.
For quotation, the buyer should describe the raw material condition at receiving, the expected hourly intake, the amount of leaves, sand, stones or damaged material, and the discharge height required by the next machine. Water circulation, drain position, operator inspection space and cleaning access should be checked early because they affect both hygiene and installation cost. The RFQ checklist below should be used to confirm the sizing data before quotation.
- Match washing force to fruit firmness so cleaning does not create bruising.
- Confirm drain and solids discharge because washing equipment can move soil downstream if it is undersized.
- Plan inspection width and lighting when manual sorting is part of the line.
- Treat capacity values as reference only until the raw material state and working schedule are confirmed.
Related planning pages: washing and sorting equipment overview, apple washing before crushing, and tomato sorting before extraction. These internal links help compare equipment, plant route and RFQ scope before final quotation.
Engineering review
How Engineers Select This Equipment
The questions below reflect the actual engineering inputs for this equipment category. Reference values are useful for early discussion, but final sizing is confirmed from project data and samples or drawings where needed.
Washing and drainage duty
Confirm water circulation, final rinse, solids removal, drainage position and allowable bruising so cleaning does not move contamination downstream.
Front-end line interface
Match receiving method, inspection width, operator space, inlet height and discharge height to the next crusher, pulper or conveyor.
RFQ data
Equipment RFQ Checklist
Use this checklist when requesting a quote for Drum Grading Machine. If values are preliminary, mark them as reference only so the engineering team can show adjustable options.
| RFQ Field | What to Provide | Why It Matters |
|---|---|---|
| Raw material condition | Fruit or vegetable type, firmness, typical size range, fresh or frozen state, soil, leaves, stones and defect level. | Firmness and contamination load determine washing force, contact method and solids removal. |
| Intake and schedule | kg/h or t/h intake, operating hours per day, campaign length and expected peak feed. | Peak intake controls machine width, residence time, water volume and line balance. |
| Cleaning objective | Soil removal target, final rinse requirement, water reuse preference and allowable product bruising. | The required cleaning duty changes spray, bubble, brush and rinse configuration. |
| Inspection and grading | Manual inspection requirement, number of operators, lighting, grading bands and reject discharge method. | Inspection width and reject handling affect ergonomics and practical throughput. |
| Site and interfaces | Receiving method, inlet and outlet height, next machine, voltage, water supply, drainage and available floor space. | Interface and drainage data prevent installation conflicts and hygiene problems. |
Buyer questions
Equipment FAQ
How is washing force selected?
Washing force is selected from surface contamination, fruit firmness, size and the risk of bruising. Soft fruit may require gentle bubble or spray handling, while firmer raw material may tolerate brush contact. The final choice should also consider water reuse, solids removal and the next process step.
What drainage information is required?
Provide floor drain locations, available flow, solids capture method and whether wash water will be recirculated. Poor drainage can carry soil and leaves into downstream equipment or create sanitation problems around the receiving area.
Can inspection and grading be integrated?
Yes. Roller inspection, manual sorting, lighting and drum grading can be arranged in one front-end section. State the defect types, operator count, size bands and reject route so the conveyor width and discharge points can be planned.
Can Drum Grading Machine be customized?
Yes. Capacity, product-contact or container-contact parts, motor and drive selection, controls, guarding, inlet and outlet arrangement, platform and line interfaces can be configured from the project data listed on this page. Final scope is confirmed before manufacturing.
Why is there no fixed online price for Drum Grading Machine?
The same equipment name can cover different capacity, construction, controls, guarding, accessories and upstream or downstream interfaces. A fixed public price would hide those differences. The RFQ process confirms the required scope before a project quotation is prepared.
Equipment RFQ
Send Drum Grading Machine requirements.
For a useful quotation, provide raw material condition, intake and schedule, cleaning objective and inspection and grading. Mark preliminary values as reference only.
Raw material conditionIntake and scheduleCleaning objectiveInspection and gradingSite and interfaces