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How to efficiently sort mangoes by weight

Mango grading machine

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 efficiently—without 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 300–800g. A Keitt can reach 400–900g with a long shelf life. A Tommy Atkins is round and durable at 250–700g. An Ataulfo is elongated and smaller, weighing just 200–400g.

For growers and packers, this diversity creates a real challenge. Sorting different varieties by weight requires precision—and the ability to switch between grade configurations quickly. What works for a large Kent mango won‘t 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 grading—every mango goes to the right weight grade, every time

16,000–19,000 pcs/h

Enough throughput for commercial packing lines—no 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 weighing—no rolling or shifting that could affect accuracy

Soft-drop discharge

Soft buffer brushes and inclined pads at each exit—prevents 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 uniform—improving 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 →

How to efficiently sort mangoes by weight | FstSort