---
title: "How to Stabilize Potato Feed from the Hopper to the Cleaner"
url: https://www.spudmate.com/fr/potato-hopper-to-cleaner-feed-stability/
description: "Bridging and surging at the potato intake can make a cleaner appear undersized or a conveyor appear unreliable. This guide shows how to locate the…"
published: 2026-10-20
updated: 2026-10-20
author: "xtlaigc"
site: "Tianjin Goldilocks Co., Ltd."
---

# How to Stabilize Potato Feed from the Hopper to the Cleaner

## Key takeaways

- Separate bridging, surging and starvation before changing machine size.
- Compare the complete hand-off, not only the largest stated capacity.
- Change one height, speed or baffle setting at a time during trials.
- Accept the line against recorded crop conditions and an agreed operating window.

## Identify the Feed Failure Before Changing Equipment

Start by locating the first interruption, not by increasing machine size. Bridging occurs when material spans a discharge opening and restricts flow while potatoes remain above it. A surge is a dense wave, often following accumulated material being released. Starvation means the receiving equipment has too little incoming material; bridging is one possible cause, but an inconsistent upstream supply or a blocked transfer can produce the same symptom.

Watch the hopper outlet, cleaner entrance and first downstream transfer together. Record where a pile forms first, whether a thin stream follows its release and whether the receiving machine is empty or merely waiting for the next delivery wave. If the cleaner receives a steady stream but material accumulates at its discharge, investigate the downstream hand-off before changing the receiving arrangement. If no accumulation appears anywhere, check the source delivery pattern before adjusting the receiving equipment.

- Mark the time of each bridge, surge and starvation event.
- Observe whether the disturbance starts before or after cleaning.
- Record crop condition, visible soil and approximate load pattern during each event.

## Trace the Material Path from Intake to Cleaning

Trace each change in direction or elevation. Check whether the outgoing stream lands within the receiving area and whether downstream accumulation obstructs discharge. Compare connections during steady flow and immediately before an interruption. A clear transfer after a surge does not establish that it remained clear throughout the event.

The [BQX cleaning family](https://www.spudmate.com/products/potato-cleaning-machine-bqx/) receives bulk potatoes and feeds a hydraulic cleaning roller. Soft PU spiral blades, adjustable roller spacing and a double-layer impurity conveyor support cleaning and separation. Evaluate these duties alongside the upstream discharge arrangement; they do not establish a hopper flow-control feature.

[![Potato cleaning equipment assembly.](https://www.spudmate.com/wp-content/uploads/2026/10/spudmate-potato-cleaning-machine-bqx-1024x512.jpg)](https://www.spudmate.com/products/potato-cleaning-machine-bqx/)

BQX cleaning family for bulk receiving, cleaning and impurity separation.

1. Receive bulk potatoes
2. Observe outlet flow
3. Clean and separate impurities
4. Transfer at a recorded rate

Conceptual workflow for diagnosing potato feed stability; it does not represent machine layout, dimensions or scale.

## Separate Rated Capacity from Stable Operation

BQX-16, BQX-20 and BQX-24 have stated capacities of 40, 60 and greater than 90 tonnes per hour respectively. The BSSJ8-08 conveyor is rated at approximately 80 t/h, and the mobile cleaner at approximately 15 t/h. Connected-line capacity remains project-specific.

A BQX-24 feeding a BSSJ8-08 therefore needs particular review: their ratings do not support carrying the cleaner’s greater-than-90 t/h figure through that conveyor. Lower average flow can still arrive in disruptive waves. Compare sustained delivery, short surges and downstream acceptance separately when selecting the arrangement.

| Equipment | Stated capacity | Relevant function | Selection check |
| --- | --- | --- | --- |
| BQX-16 / BQX-20 / BQX-24 | 40 / 60 / >90 t/h, respectively | Bulk receiving, cleaning and impurity separation | Match cleaning demand and downstream acceptance. |
| BSSJ8-08 | Approximately 80 t/h | Conveying with adjustable height and speed | Review transfer alignment; do not carry a higher cleaner rating through it. |
| Mobile cleaner | Approximately 15 t/h | Mobile intake, soil removal and adjustable height | Check delivery peaks and connection geometry. |

## Choose the Configuration for the Site Connection

The [mobile potato cleaner](https://www.spudmate.com/products/potato-cleaning-machine-mobile/) serves field intake, bulk and ton-bag receiving, and soil removal. It has rubber cleaning rollers, a 500 mm effective belt, a tow bar and a hopper of about 3 m³. Hopper volume alone does not establish stored potato mass or buffering time.

The [BSSJ8-08 conveyor](https://www.spudmate.com/products/potato-conveyor-bssj8-08/) offers adjustable height and speed, a detachable feeding baffle, rubber side protection and a finger-shaped buffer. Its inlet height is 800 mm and outlet height 490–890 mm. Compare these with the mobile cleaner’s inlet range of 830–1300 mm and outlet range of 750–1050 mm.

- Measure discharge and receiving heights for the proposed equipment sequence.
- Check landing position, discharge direction and available footprint.
- Provide observation access; isolate equipment before clearing accumulated material.

[![Potato conveyor assembly with a belt and supporting frame.](https://www.spudmate.com/wp-content/uploads/2026/10/spudmate-potato-conveyor-bssj8-08-1024x512.jpg)](https://www.spudmate.com/products/potato-conveyor-bssj8-08/)

BSSJ8-08 conveyor for transfer between processing stages.

## Use Observation to Isolate Bridging, Surging or Starvation

Observe several delivery cycles before assigning a cause. Material remaining above an interrupted outlet suggests a bridge or another discharge restriction. A dense wave following accumulation suggests release upstream. A clear receiving surface with little incoming flow calls for checking the source before increasing downstream speed. Note whether the disturbance repeats at a similar hopper level, crop condition or transfer position; repetition helps separate a recurring restriction from a single unloading event.

Adjustments should match the equipment and the observed location. BSSJ8-08 speed and height changes can test a transfer problem; mobile-cleaner height adjustment can test connection alignment. BQX roller spacing concerns cleaning and separation, not hopper flow control. After each change, repeat the same observation sequence and record whether the interruption disappears, becomes shorter or moves to another hand-off. Use the [potato cleaning intake sizing guide](https://www.spudmate.com/how-to-size-potato-cleaning-intake-line/) when the target flow itself needs review.

## Run a Controlled Feed Trial

Choose a crop lot and record its condition. As a trial example, observe continuously for ten minutes and take equal one-minute samples at the start, middle and end, where collection is practical and safe. This example assumes each collected interval is representative of the operating period being compared; it is not a guaranteed test duration or a capacity promise. Log each interruption’s start, duration and location, plus the operator response. Extend observation if delivery cycles exceed that window.

Measure sample mass and elapsed time rather than estimating from belt appearance. If a one-minute sample contains *m* kilograms and is assumed to represent the flow during that minute, the corresponding rate is *m* kg/min × 60 min/h ÷ 1000 kg/t, or *m* × 0.06 t/h. Over the same interval, incoming mass equals cleaned-potato output plus separated material plus the increase in retained inventory, assuming no other losses. If incoming flow stops, inventory drawdown equals the outgoing mass during that period; it is not calculated by subtracting the prior peak rate from the outgoing rate.

- Use the same crop lot and sampling schedule for comparison trials.
- Change one available setting at a time and record its value.
- Account for separated material and inventory changes when comparing input and output.

| Observed pattern | Check first | Record | Next response |
| --- | --- | --- | --- |
| Discharge stops with material above | Outlet restriction | Stop duration and release timing | Pause delivery; investigate after isolation. |
| Dense wave followed by thin flow | First accumulation point | Wave timing and downstream recovery | Test one applicable setting or connection change. |
| Little flow without accumulation | Source delivery | Timed input mass and delivery gaps | Review supply pattern against target flow. |
| Pile forms at downstream transfer | Receiving alignment and acceptance | Pile onset and equipment settings | Reduce incoming delivery and review the hand-off. |

## Set Acceptance Criteria and Response Actions

Agree on the required output, observation duration and acceptable interruptions before testing. Record crop identity, connection heights, settings and collection points. Keep average flow alongside interruption counts and durations so a high average cannot conceal repeated starvation or a transfer that repeatedly backs up. Define where input, cleaned potatoes, separated material and retained inventory will be observed, because measurements taken at different time windows cannot be compared directly.

Respond at the first affected point. For an obstructed outlet, pause incoming delivery and investigate after isolation. For a downstream pile, reduce incoming delivery while reviewing the connection. For starvation without accumulation, check source delivery. Repeat the same trial after the change to see whether the disturbance has moved or diminished. Acceptance should cover the agreed crop condition and operating window, rather than relying on a single favorable sample.

## Prepare the Information Needed for Final Selection

Send the target rate, crop size range, soil load, receiving method and delivery pattern for selection review. Include connection heights, discharge direction, footprint and electrical supply. Distinguish a sustained target from a brief unloading peak: they place different demands on receiving and transfer arrangements.

Photographs, video and timed weight samples make the brief more useful. Include the settings and operator actions associated with each event. Use the [potato conveying and sorting commissioning checklist](https://www.spudmate.com/commissioning-checklist-potato-conveying-sorting/) to organize checks across the connected route and retain a usable handover log.

## Commission the Line with Clear Limits

Record the accepted crop conditions, settings and response actions where operators can use them. Repeat observations when receiving method or crop condition changes substantially. Electrical connection design belongs to a qualified local professional; rated power and voltage inform that review rather than establishing universal supply compatibility.

Use the [potato processing solutions overview](https://www.spudmate.com/#solutions) to discuss the wider process, then send the trial log through [the project contact form](https://www.spudmate.com/#contact). Include unresolved disturbances and the conditions that trigger them so the proposed arrangement addresses the observed restriction.

## Send the Feed-Stability Information for Review

Use the [potato feed-stability project enquiry](https://www.spudmate.com/#contact) to send your target rate, crop condition and size range, hopper and transfer photographs or video, available connection heights, discharge direction, footprint, electrical supply, operating pattern and proposed acceptance sample.