---
title: "Potato mechanical sorting machine BF4-11"
url: https://www.spudmate.com/bn/products/potato-mechanical-sorting-machine-bf4-11/
description: "Four-level mechanical grading with a 1100 mm effective roller width and independently controlled discharge belts."
published: 2026-10-01
updated: 2026-10-04
site: "Tianjin Goldilocks Co., Ltd."
---

# Potato mechanical sorting machine BF4-11

The BF4-11 uses a customized large-pitch roller chain and double-layer stainless roller bars. The grading frame changes the roller gap, and four discharge belts can be controlled independently.