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Chestnut Washing Drying and Grading Line

Chestnut Washing Drying and Grading Line - Fruit Processing Line by FstSort

Fstsort chestnut processing equipment: choose washing line (bubble tank, brushes, air blowers, inspection table) or drum screen grader (size sorting by diameter). Model reference FICW-2000. Custom capacity & grades. Get quote.

Product Overview – Two Independent Solutions for Chestnut Processing

Fstsort offers two separate pieces of equipment for chestnut processing. You can purchase them individually or combine them into a complete line.

Product

Function

Best for

Chestnut Washing Line

Cleaning + manual sorting

Customers who only need washing and defect removal

Drum Screen Grader

Automatic size sorting by diameter

Customers who need graded chestnuts by size

💡 Combine them: Washing Line → Drum Screen Grader = Complete washing + grading line.


Product 1 – Chestnut Washing Line

Description

This Fstsort chestnut washing line is designed for nuts like chestnuts and macadamia. It consists of:

  • Bubble washing tank – with backward spray and debris filter

  • Water sprinkles & brushes – deep cleaning

  • Air blowers – removes surface moisture

  • Roller inspection table – for manual sorting of defective nuts

No automatic grading – this line is for washing and manual sorting only.

Key Features

  • High efficiency

  • Gentle on nuts – reduces cracking

  • Variable speed

  • Customizable capacity

  • CE certified

Bubble Washing Tank for Chestnuts – Filter Screen & Side Collection Tank Design

Our bubble washing tank is specifically designed for chestnuts, with High-quality nuts (chestnuts, almonds, walnuts) are denser than water and sink. Only defective nuts (rotten, insect-damaged, shriveled, broken) and shell pieces float.

Result: Good nuts move forward without obstruction. Bad nuts and shell debris are efficiently separated and collected.

Roller Inspection Table

  • Stainless steel rollers rotate slowly

  • Workers manually pick out defective or damaged chestnuts

  • Gentle handling – rollers reduce hand fatigue

Specification – Washing Line (Reference: FICW-2000)

All parameters are customizable.

Parameter

Reference Value

Customizable

Model reference

FICW-2000

Capacity

2000 kg/h

✅ Yes (up to 5–10 t/h)

Brushes

20 pcs

✅ Yes

Air blowers

4 pcs

✅ Yes

Dimension (mm)

9900*1500*1700

✅ Yes (custom layout)

Voltage

380V

220V, 415V, 60Hz available

Optional Upgrades for Washing Line

Option

Description

Hot air dryer

Complete drying after air blowers – for bagging or long-term storage

Water circulation tank

Larger water tank for extended operation

Product 2 – Drum Screen Grader (Chestnut Size Sorter)

Description

The Fstsort drum screen grader is specifically designed for size sorting chestnuts by diameter. Unlike roller graders (which are not suitable for chestnuts), the drum screen grader uses round holes and gentle tumbling action – the preferred method for chestnut packers worldwide.

How It Works

  • Chestnuts enter the rotating drum

  • As the drum turns, chestnuts fall through round holes of increasing sizes

  • Each size falls into a separate outlet

  • Gentle tumbling – no cracking or jamming

Key Features

  • Round holes – match the natural shape of chestnuts

  • Gentle tumbling – no crushing or jamming

  • Consistent sizing – accurate diameter separation

  • High capacity – up to 5–10 t/h

  • Low maintenance – simple design, easy to clean

  • Adjustable grades – change drum screens for different size ranges

Specification – Drum Screen Grader

All parameters are customizable.

Parameter

Reference Range

Customizable

Capacity

3–8 t/h

✅ Yes

Number of grades

3–6

✅ Yes

Hole sizes

Customizable by diameter

✅ Yes

Material

Stainless steel (food contact)

✅ Yes

Voltage

380V

220V, 415V, 60Hz available

Common Grade Sizes for Chestnuts (Example)

Grade

Diameter Range

Typical Use

Small

< 20 mm

Processing, peeling

Medium

20–25 mm

Retail, fresh market

Large

25–30 mm

Premium retail

Extra Large

30-35mm

Specialty, export

> 35 mm

Jumbo specialty, high-end export

You choose the sizes – we customize the drum holes to your exact diameter requirements.

Customized chestnut washing line for Australian customer(Bubble washer+Brushes&Sprayer+roller inspection table)

images/1737536703520chestnut-cleaning-sorting-machine.jpg

   

Chestnut drum sorting machine

   
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Frequently Asked Questions

Key questions customers usually ask before choosing this solution.

What is the difference between the washing line and the drum screen grader?+

Washing line – cleans chestnuts and provides a roller inspection table for manual sorting. No automatic grading. Drum screen grader – automatic size sorting machine. Use it alone or after the washing line.

How does the bubble washing tank remove debris from chestnuts?+

The tank generates bubbles to loosen dirt, while backward spray nozzles push chestnuts forward toward the elevator. A filter screen separates debris (leaves, stems, mud) from the water and directs it to a small side tank for easy removal. This design ensures continuous operation with less manual cleaning.

How many grades can the drum screen grader have?+

We offer 3 to 6 grades as standard. A 5-grade configuration is very common for chestnuts, for example: Grade 1: < 20 mm Grade 2: 20–25 mm Grade 3: 25–30 mm Grade 4: 30–35 mm Grade 5: > 35 mm You can customize the diameter range for each grade to match your market requirements.

Do you offer a hot air dryer for complete drying?+

Yes. We can add a hot air dryer after the air blowers if you need chestnuts completely dry for bagging or long-term storage.

Chestnut Washing Drying and Grading Line | FstSort