The Fstsort Mango Grading Machine is a high-precision electronic weight sorter engineered for the global mango export market. Featuring French-made Scaime sensors and a V-shaped belt system, it delivers accurate, high-speed sorting with gentle fruit handling. We also offer integrated line solutions including washing, hot water treatment, waxing, drying, and grading – all customizable to your export requirements.
Product Overview: The Core Grading System
Our mango grading machine is built around three core principles: precision, speed, and gentle handling.
At the heart of the system are Scaime load cells (made in France), delivering a weighing accuracy of ±2g across the full weight range. The conveying system uses a V-shaped belt design that securely holds each mango during weighing, preventing rolling or shifting that could affect accuracy.
Each exit is equipped with soft buffer brushes and inclined pads. This “soft-drop” design ensures mangoes transition smoothly from the cup to the collection area, minimizing impact and preventing bruising – a critical concern for soft-skinned mangoes.
The standard machine offers 12 grading exits, fully customizable to your specific grade requirements. You can set the weight range for each exit via the touchscreen industrial computer interface, and the system allows you to save multiple product profiles (e.g., for different varieties or different buyer specifications) for fast changeover.
Technical Specifications
Item | Specification |
Compatible Products | Mangoes, Avocados, dragon fruit, etc. |
Grading Accuracy | ±2g |
Processing Capacity | 16,000 – 19,000 pcs/h |
Number of Grades | Standard 12 exits (Customizable) |
Power Supply | 380V, 50Hz, 3-Phase (Customizable) |
Rated Power | Approx. 16.23kw - 25kw(depending on modules) |
Dimensions (L×W) | Approx. 38.6m \times 1.5m(Customizable per drawing) |
Main Material | Food-grade Stainless Steel & Carbon Steel Frame |
Sorting Principle | Electronic Weight Sensing |
What Weights and Varieties Can It Handle?
The machine is designed to accommodate the full range of commercial mango varieties:
Variety | Typical Weight Range | Key Feature |
|---|---|---|
Kent | 300 – 800g | Thick flesh, premium export variety |
Keitt | 400 – 900g | Large fruit, long shelf life |
Tommy Atkins | 250 – 700g | Round shape, durable skin |
Haden | 300 – 700g | High color variation |
Ataulfo | 200 – 400g | Elongated, smaller fruit |
The grading parameters are fully adjustable via the industrial computer. You can set different weight ranges for different varieties or buyer requirements, and the system saves each configuration for instant recall.
How the Grading Machine Works
Step | Process | Description |
|---|---|---|
1 | Fruit Feeding | Mangoes are fed via an elevator or buffer conveyor. A singulation mechanism spaces the fruit evenly to ensure each mango is weighed individually. |
2 | Weight Sensing | Each mango enters an individual cup on the V-shaped belt. As it passes over the Scaime load cell, the sensor captures the weight at high speed with dynamic compensation. |
3 | Data Processing | The control unit records the weight, compares it against preset grade ranges, and calculates the optimal exit position – all in milliseconds. |
4 | Sorting Execution | When the cup reaches the designated exit, the tilting mechanism activates. Soft inclined pads cushion the drop, preventing surface damage. |
5 | Collection & Packing | Two options available: (1) Fruit is discharged directly via takeout belt into collection bins; or (2) Fruit is delivered to packing tables at each exit for manual packing. |
Optional Supporting Modules (Available as Add-Ons)
While the grading machine is the heart of the line, we also offer a complete range of upstream and downstream modules for clients who require a fully integrated solution:
Bubble Washer: Removes field debris and pesticide residues
Soft Brush Cleaner: Gentle on mango skin, removes latex and surface dirt
Hot Water Treatment (HWT): Boiler-fed hot water system for quarantine sterilization
Chlorine Sterilization: Automatic dosing system (100–200 ppm free chlorine)
Roller Dryer: Removes surface moisture before waxing
Waxing Machine: Horsehair brush rollers with adjustable flow control
Hot Air Dryer: Sets wax film for glossy finish and extended shelf life
Turning Conveyor & Splitter: Adapts to L/U-shaped plant layouts
These modules are optional and can be added individually or as a full integrated line, depending on your processing needs and export market requirements.
Get it right the first time – check the Mango Grader Buying Guide→
Global Heat Treatment Standards (For Reference)
For clients who require hot water treatment as part of their export compliance, our grader integrates seamlessly with HWT modules to ensure accurate pre-sort by weight – a critical requirement for USDA compliance.
Market | Water Temp. | Core Temp. | Treatment Time |
|---|---|---|---|
USA (USDA APHIS) | 46.1°C (115°F) | – | 75–110 min (by weight) |
China (GAC) | 48°C | ≥46°C | 15 min after core reaches 46°C |
EU (West Africa) | 48°C | 46–47°C | 60–90 min after core reaches |
Note: Pre-sorting by weight before heat treatment is mandatory for US exports. Our grader handles this precisely.
Case Studies
Mango washing grading line to India
Mango Processing Project in Côte d'Ivoire & Mali (Export-grade Capacity)
Mango Sterilization & Sorting Solution for US Client (Compliance-focused)
Frequently Asked Questions
Key questions customers usually ask before choosing this solution.
Can I purchase the weight sorter as a standalone unit?+
Yes. Our Electronic Weight Sorter can be supplied as an independent machine with its own control system and buffer feeding belt, allowing it to integrate seamlessly into your existing cleaning line.
Is the system suitable for different mango varieties?+
Absolutely. The sorting cups and V-belts are designed to handle various shapes and sizes. You can easily adjust the weight parameters for different varieties (e.g., Kent, Keitt, Tommy Atkins) via the industrial computer interface.
Do you provide the boiler for the Hot Water Treatment (HWT)?+
We offer complete system integration. Based on your energy source (gas, electric, or biomass), we can configure the appropriate boiler and heat exchange system to ensure stable water temperatures for sterilization.
How does the machine prevent bruising on delicate mangoes?+
We prioritize gentle handling. Every exit is equipped with soft buffer brushes and inclined pads. The "soft-drop" tilting mechanism ensures mangoes transition smoothly from the tray to the collection area, minimizing impact.
What kind of after-sales support do you provide for international clients?+
We provide a comprehensive spare parts kit (sensors, valves, cups). We also offer detailed video installation guides and remote technical support. For large-scale projects, our engineers are available for on-site commissioning and staff training.