
Mangoes come in all shapes and sizes. A Kent mango can weigh up to 800g, while an Ataulfo may weigh just 200g. Different varieties, different weights, different markets. For packers supplying supermarkets or export buyers, the challenge is simple: how do you sort each variety accurately and efficientlyâwithout damaging the fruit?
The Variety Challenge: Not All Mangoes Are the Same
Mangoes are native to South Asia and have become one of the most widely grown fruits in the world. But within this single fruit category lies remarkable diversity.
Depending on the variety, mangoes vary significantly in size, shape, sweetness, skin color, and flesh color. A Kent mango is thick-fleshed and weighs 300â800g. A Keitt can reach 400â900g with a long shelf life. A Tommy Atkins is round and durable at 250â700g. An Ataulfo is elongated and smaller, weighing just 200â400g.

For growers and packers, this diversity creates a real challenge. Sorting different varieties by weight requires precisionâand the ability to switch between grade configurations quickly. What works for a large Kent mango wonât work for a smaller Ataulfo.
Manual sorting is slow, inconsistent, and increasingly expensive. And rough handling during sorting can bruise the delicate skin of mangoes, reducing their market value.
Weight Sorting: The Key to Consistent Quality

Fstsort's mango grading machine is designed specifically for the challenges of sorting diverse mango varieties. It uses electronic weight sensing with high-precision load cells to weigh each mango individually.
What it delivers:
Feature | What It Means for Your Mangoes |
|---|---|
Âą2g accuracy | Consistent gradingâevery mango goes to the right weight grade, every time |
16,000â19,000 pcs/h | Enough throughput for commercial packing linesâno bottlenecks |
12 customizable exits | Sort into up to 12 weight grades to match different market requirements |
V-shaped belt conveying | Holds each mango securely during weighingâno rolling or shifting that could affect accuracy |
Soft-drop discharge | Soft buffer brushes and inclined pads at each exitâprevents bruising, a critical concern for soft-skinned mangoes |

The result: mangoes that are accurately graded by weight, gently handled from start to finish, and ready for the buyers who pay premium prices for consistent quality.
Optional: Optical Grading for External Quality
For packers who need to go beyond weight sorting, an optical grading system can be added to the line. It accurately evaluates the external quality of each mango, detecting imperfections such as scratches, shape irregularities, size variations, color inconsistencies, and rot spots.
The result: mangoes that are not only correctly weighted but also visually uniformâimproving their market appeal and economic value.
Built for the Real World
The Fstsort mango grading machine is available as a standalone grader or as part of a complete processing line with optional modules including bubble washing, soft brush cleaning, hot water treatment, waxing, and drying. Each system is customizable to match your specific varieties, throughput targets, and facility layout.
Explore the full specifications on our mango grading machine page â